fixed template plugin

Support HTTP Status 509

.gitignore

@@ -9,3 +9,5 @@
 /uwsgibuild.*
 
 /t/ring/target
+
+core/dot_h.c

.hgignore

@@ -1,4 +0,0 @@
-syntax: glob
-
-*.o
-*.pyc

.hgtags

@@ -1,58 +0,0 @@
-d3850b52334a91d005b0fe45e1e38ba0997a1fb8 no_server mode
-2d8a617299153ed2efa6ecee7920e9d36c29e0f5 0.9.5beta1
-04722a2d0121080d14a64df097c278860db5ce8a 0.9.5rc1
-820cc64ab296dc4589ef72a33a6b804c22a0430c 0.9.5rc2
-b0db39cfad5ac6d4f00bbb3f9c57cf73206e2afb 0.9.5
-9f8b98ad1dfa51b86b13fa624c65f73523075fc4 0.9.5.1
-a83e7a482e65befcfbb0e24af8cd5d15190acdd7 0.9.6-rc1
-b8f67c6cd0d62f864db9b2b265b4e260ad7d873c 0.9.6-rc2
-35918dd4b3771158b2b57410613ef029e08bbd60 0.9.6
-5f25d1f97f9dde3e391a668c1c610a52a5db8244 0.9.6.1
-ef31fc61ac48018c464f28ebfdf865b96bf83f18 0.9.6.2
-9e100c1f085034396cec586f0c76ad3f9800d1a5 0.9.7-beta1
-ff4111eb8f55b958ec91c70163e10f3372a9b94d 0.9.7-rc1
-eb8aff2926230bb114fb90f67203440a2c534bf1 0.9.7-rc2
-311eef929ec8fd0a5dc8c16531afb7bb42d36d01 0.9.7-rc3
-4b50c04e414f1d9ab8b0b5910aba83d09ac21abb 0.9.7
-d9b9b540f7dce8cb05d2e61ca8b4d75f2ea25f62 0.9.7.1
-d9b9b540f7dce8cb05d2e61ca8b4d75f2ea25f62 0.9.7.1
-0000000000000000000000000000000000000000 0.9.7.1
-0000000000000000000000000000000000000000 0.9.7.1
-486e7760bcbc2191ddb9b4aee6c98dbd5fc4c754 0.9.7.1
-a5f13497b39269621f8f1e56e14d2cc141452e79 0.9.7.2
-d1e57707f6317f134fea7d12f6588d8690f74f3f 0.9.8-rc1
-e91bc724325e14c13b8f548c0b6a315c48a1c32a 0.9.8-rc2
-4fb424d52f226a0a087fea89709f5eb540e03f25 0.9.8-rc3
-0f1f3924ee5309a9990d9af1ffc68846e3dfb31b 0.9.8-rc4
-42efe1f329005618c8b44f901979ebcecd5216fb 0.9.8
-fd8477b6348faf16588106055ca59df1c488f76a 0.9.8.1
-7169ef1d68d3dab4737bcc3f9e082839e5a06cc1 0.9.8.2
-f4d3c4dcd7a63e21fcc9d8d567374c69935178bd 0.9.8.3
-6945ee03c7ea95eb19217ef1e1fb17d9ae26adbc 0.9.9-beta1
-fb168b0b86169219aa9b8e40f0caa6297cf34dbc 0.9.9-rc1
-6aa667612019fcff8e68af9469f73aff6fa378a8 0.9.9-rc2
-376ffd8f190623e5e2521fe9fa64bf03c31e71be 0.9.9
-7048ae11cfc8453c6bb599af3c0dfacd7ebae43c 1.0-rc1
-7a4e021ea7ba2953e474326612c3bb82d6817f0e 1.0-rc2
-4e4e781ef89ac33e71a7e92741d54549240ed156 1.0-rc3
-24f7e260ea345c2cd73e2fd8191dddbd1b039062 1.0-rc4
-043ba93dd69cf6924e98db3cb9a8759cce997367 1.0-rc5
-a2b8f25fd17ed7424d1470a287d0b3144d2a12c8 1.0-rc6
-a3ca2e8e27c5c12c44ba0cacb4de4cb51377f184 1.0-rc7
-365e2514cc19f0366365318f12a1d63113b02924 1.0-rc8
-5da6fe43a8c29056bc9442c684615e11a3699795 1.0-rc9
-af490b8c30f83bc5fb6f3837a760981474647755 1.0-rc10
-3c70927335856883283fe4db448e092cecc0ccdb 1.0
-8fe7bb792399cb6e6a24e20551f4149409660363 1.0.1
-1d1702789710ec1c20613d2490b14f70756e67ec 1.1-rc1
-901f0cb5de36ea907b26d64ac9ce54605ec531d2 1.1-rc2
-ede5c664978bb40e476e8d4a5789562928f28507 1.1-rc3
-ef99144291f06822d026e981d5d856cbec14d867 1.1-rc4
-e1568fd16b7b586cc72deb4dfccbbe64ae0b84df 1.1
-24c8fe5a26e557db41cf1cee45b8964d5885e484 1.2-rc1
-29de0fb320bc0a1ce84972f9f249360e315d3c10 1.2-rc2
-c3cdecbf2bac591336baddd14f9ac22e18d6e200 1.2
-14524da00a8b382dffb1d16a0e70cdf4a946f369 1.3-rc2
-883b946db9038372cb1d76cb1d328a3093140e7b 1.3-rc3
-aeea5a5d2e8b62ad55e23d539e1be02f2b6962af 1.3-rc4
-620e0cb6ccdb0ce27561b4240cb3a0ef4c3527fd 1.3

CONTRIBUTORS

@@ -22,3 +22,6 @@ Aarni Koskela
 C Anthony Risinger
 Stephen Pierce
 Mingli Yuan
+Natanael Copa
+Roberto Leandrini
+Ryan Petrello

LICENSE

@@ -1,3 +1,19 @@
+----------------------------------------------------------------------
+
+LINKING EXCEPTION
+
+ In addition to the permissions in the GNU General Public License,
+ the authors give you unlimited permission to link the compiled
+ version of this library into combinations with other programs,
+ and to distribute those combinations without any restriction
+ coming from the use of this file. (The General Public License
+ restrictions do apply in other respects; for example, they cover
+ modification of the file, and distribution when not linked into
+ a combined executable.)
+
+----------------------------------------------------------------------
+
+
 		    GNU GENERAL PUBLIC LICENSE
 		       Version 2, June 1991
 

Makefile

@@ -1,8 +1,10 @@
+PYTHON := python
+
 all:
-	python uwsgiconfig.py --build
+	$(PYTHON) uwsgiconfig.py --build $(PROFILE)
 
 clean:
-	python uwsgiconfig.py --clean
+	$(PYTHON) uwsgiconfig.py --clean
 
 check:
-	python uwsgiconfig.py --check
+	$(PYTHON) uwsgiconfig.py --check

attach.py

@@ -7,7 +7,7 @@ filename = sys.argv[1]
 size = os.path.getsize(filename)
 
 f = open(filename, 'r')
-print(f.read())
+os.write(1, f.read())
 f.close()
 
-print(struct.pack("<Q", size))
+os.write(1, (struct.pack("<Q", size)))

buildconf/all.ini

@@ -1,3 +1,3 @@
 [uwsgi]
-main_plugin = python,gevent,psgi,lua,php,rack,jvm,jwsgi,ring,mono,transformation_toupper,coroae,v8,cgi,xslt,webdav,ssi,ldap
+main_plugin = python,gevent,psgi,lua,php,rack,jvm,jwsgi,ring,mono,transformation_toupper,coroae,v8,cgi,xslt,webdav,ssi,ldap,gccgo,rados
 inherit = base

buildconf/base.ini

@@ -6,6 +6,7 @@ zeromq = auto
 ssl = auto
 pcre = auto
 routing = auto
+matheval = auto
 debug = false
 unbit = false
 xml_implementation = libxml2
@@ -16,7 +17,7 @@ plugins =
 bin_name = uwsgi
 append_version =
 plugin_dir = .
-embedded_plugins = %(main_plugin)s, ping, cache, nagios, rrdtool, carbon, rpc, corerouter, fastrouter, http, ugreen, signal, syslog, rsyslog, logsocket, router_uwsgi, router_redirect, router_basicauth, zergpool, redislog, mongodblog, router_rewrite, router_http, logfile, router_cache, rawrouter, router_static, sslrouter, spooler, cheaper_busyness, symcall, transformation_tofile, transformation_gzip, transformation_chunked
+embedded_plugins = %(main_plugin)s, ping, cache, nagios, rrdtool, carbon, rpc, corerouter, fastrouter, http, ugreen, signal, syslog, rsyslog, logsocket, router_uwsgi, router_redirect, router_basicauth, zergpool, redislog, mongodblog, router_rewrite, router_http, logfile, router_cache, rawrouter, router_static, sslrouter, spooler, cheaper_busyness, symcall, transformation_tofile, transformation_gzip, transformation_chunked, transformation_offload, router_memcached, router_redis, router_hash, router_expires, router_metrics, transformation_template, stats_pusher_socket
 as_shared_library = false
 
 locking = auto

buildconf/coroae.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = psgi,coroae
+inherit = base

buildconf/coverity.ini

@@ -1,4 +1,4 @@
 [uwsgi]
-# pypy,jvm,ring,jwsgi
-main_plugin = erlang,psgi,rack,lua,python,gevent,php,cgi,mono,pyerl,go
+# pypy,go
+main_plugin = erlang,psgi,rack,lua,python,gevent,php,cgi,pyerl,glusterfs,pty,xslt,msgpack,geoip,v8,pam,ldap,mono,jvm,ring,jwsgi
 inherit = base

buildconf/default.ini

@@ -1,3 +1,4 @@
 [uwsgi]
 main_plugin = python,gevent
 inherit = base
+debug = false

buildconf/glusterfs.ini

@@ -0,0 +1,4 @@
+[uwsgi]
+main_plugin = glusterfs
+inherit = base
+matheval = false

buildconf/minimal.ini

@@ -0,0 +1,33 @@
+[uwsgi]
+xml = false
+yaml = false
+json = false
+zeromq = false
+ssl = false
+pcre = false
+routing = false
+matheval = false
+debug = false
+unbit = false
+xml_implementation = none
+yaml_implementation = none
+malloc_implementation = libc
+extras =
+plugins =
+bin_name = uwsgi
+append_version =
+plugin_dir = .
+embedded_plugins = %(main_plugin)s
+as_shared_library = false
+
+locking = auto
+event = auto
+timer = auto
+filemonitor = auto
+
+blacklist =
+whitelist =
+
+embed_files =
+
+embed_config =

buildconf/plonly.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = psgi
+inherit = minimal

buildconf/pyonly.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = python
+inherit = minimal

buildconf/pypyonly.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = pypy
+inherit = minimal

buildconf/rados.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = rados
+inherit = base

buildconf/rbonly.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = rack
+inherit = minimal

buildconf/ruby2.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = rack,rbthreads,fiber
+inherit = base

buildconf/servlet.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = jvm,servlet
+inherit = base

buildconf/v8.ini

@@ -0,0 +1,3 @@
+[uwsgi]
+main_plugin = v8
+inherit = base

contrib/pypy/uwsgi_pypy_greenlets.py

@@ -0,0 +1,61 @@
+"""
+Greenlets support
+
+simply --pypy-exec this file to enable PyPy's greenlet mode
+
+Example:
+
+uwsgi --http-socket :9090 --pypy-home /opt/pypy --pypy-wsgi werkzeug.testapp:test_app --pypy-exec contrib/pypy/uwsgi_pypy_greenlets.py --async 8
+"""
+
+import greenlet
+
+uwsgi_pypy_greenlets = {}
+
+def uwsgi_pypy_greenlet_wrapper():
+    lib.async_schedule_to_req_green()
+
+@ffi.callback("void()")
+def uwsgi_pypy_greenlet_schedule():
+    id = lib.uwsgi.wsgi_req.async_id
+    modifier1 = lib.uwsgi.wsgi_req.uh.modifier1;
+
+    # generate a new greenlet
+    if not lib.uwsgi.wsgi_req.suspended:
+        uwsgi_pypy_greenlets[id] = greenlet.greenlet(uwsgi_pypy_greenlet_wrapper)
+        lib.uwsgi.wsgi_req.suspended = 1
+
+    # this is called in the main stack
+    if lib.uwsgi.p[modifier1].suspend:
+        lib.uwsgi.p[modifier1].suspend(ffi.NULL)
+
+    # let's switch
+    uwsgi_pypy_greenlets[id].switch()
+
+    # back to the main stack
+    if lib.uwsgi.p[modifier1].resume:
+        lib.uwsgi.p[modifier1].resume(ffi.NULL)
+
+@ffi.callback("void(struct wsgi_request *)")
+def uwsgi_pypy_greenlet_switch(wsgi_req):
+    id = wsgi_req.async_id
+    modifier1 = wsgi_req.uh.modifier1;
+
+    # this is called in the current greenlet
+    if lib.uwsgi.p[modifier1].suspend:
+        lib.uwsgi.p[modifier1].suspend(wsgi_req)
+
+    uwsgi_pypy_main_greenlet.switch()
+
+    # back to the greenlet
+    if lib.uwsgi.p[modifier1].resume:
+        lib.uwsgi.p[modifier1].resume(wsgi_req)
+
+    # update current running greenlet
+    lib.uwsgi.wsgi_req = wsgi_req
+
+if lib.uwsgi.async <= 1:
+    raise Exception("pypy greenlets require async mode !!!")
+lib.uwsgi.schedule_to_main = uwsgi_pypy_greenlet_switch
+lib.uwsgi.schedule_to_req = uwsgi_pypy_greenlet_schedule
+uwsgi_pypy_main_greenlet = greenlet.getcurrent()

contrib/upstart/emperor.conf

@@ -0,0 +1,15 @@
+# uWSGI - Emperor
+#
+
+description     "uWSGI Emperor"
+
+start on runlevel [2345]
+stop on runlevel [!2345]
+
+respawn
+
+env LOGTO=/tmp/uwsgi.log
+env BINPATH=/home/foo/uwsgi/uwsgi
+env VASSALS=/etc/uwsgi
+
+exec $BINPATH --emperor $VASSALS --logto $LOGTO

contrib/upstart/uwsgi.conf

@@ -11,7 +11,6 @@ respawn
 env LOGTO=/tmp/uwsgi.log
 env BINPATH=/home/foo/uwsgi/uwsgi
 
-# --no-orphans avoid workers without master
-# --die-on-term could be a good idea
-exec $BINPATH --no-orphans --socket :3033 --uid 1001 --gid 1001 --limit-as 256 -w simple_app --logto $LOGTO -M -p 4
+# --die-on-term is upstart friendly
+exec $BINPATH --die-on-term --socket :3033 --uid 1001 --gid 1001 --limit-as 256 -w simple_app --logto $LOGTO -M -p 4
 

core/alarm.c

@@ -184,8 +184,8 @@ static int uwsgi_alarm_log_add(char *alarms, char *regexp, int negate) {
 
 	// map instances to the log
 	char *list = uwsgi_str(alarms);
-	char *p = strtok(list, ",");
-	while (p) {
+	char *p, *ctx = NULL;
+	uwsgi_foreach_token(list, ",", p, ctx) {
 		struct uwsgi_alarm_instance *uai = uwsgi_alarm_get_instance(p);
 		if (!uai) {
 			free(list);
@@ -205,7 +205,6 @@ static int uwsgi_alarm_log_add(char *alarms, char *regexp, int negate) {
 		else {
 			ual->alarms = uall;
 		}
-		p = strtok(NULL, ",");
 	}
 	free(list);
 	return 0;

core/async.c

@@ -206,7 +206,11 @@ int async_add_fd_read(struct wsgi_request *wsgi_req, int fd, int timeout) {
 }
 
 static int async_wait_fd_read(int fd, int timeout) {
+
 	struct wsgi_request *wsgi_req = current_wsgi_req();
+
+	wsgi_req->async_ready_fd = 0;
+
 	if (async_add_fd_read(wsgi_req, fd, timeout)) {
 		return -1;
 	}
@@ -222,6 +226,8 @@ static int async_wait_fd_read(int fd, int timeout) {
 
 void async_add_timeout(struct wsgi_request *wsgi_req, int timeout) {
 
+	wsgi_req->async_ready_fd = 0;
+
 	if (timeout > 0 && wsgi_req->async_timeout == NULL) {
 		wsgi_req->async_timeout = uwsgi_add_rb_timer(uwsgi.rb_async_timeouts, uwsgi_now() + timeout, wsgi_req);
 	}
@@ -265,6 +271,9 @@ int async_add_fd_write(struct wsgi_request *wsgi_req, int fd, int timeout) {
 
 static int async_wait_fd_write(int fd, int timeout) {
 	struct wsgi_request *wsgi_req = current_wsgi_req();
+
+	wsgi_req->async_ready_fd = 0;
+
 	if (async_add_fd_write(wsgi_req, fd, timeout)) {
 		return -1;
 	}
@@ -299,29 +308,42 @@ end:
 	async_reset_request(uwsgi.wsgi_req);
 	uwsgi_close_request(uwsgi.wsgi_req);
 	uwsgi.wsgi_req->async_status = UWSGI_OK;	
+	uwsgi.async_queue_unused_ptr++;
+        uwsgi.async_queue_unused[uwsgi.async_queue_unused_ptr] = uwsgi.wsgi_req;
 }
 
 void async_schedule_to_req_green(void) {
+	struct wsgi_request *wsgi_req = uwsgi.wsgi_req;
 #ifdef UWSGI_ROUTING
-        if (uwsgi_apply_routes(uwsgi.wsgi_req) == UWSGI_ROUTE_BREAK) {
+        if (uwsgi_apply_routes(wsgi_req) == UWSGI_ROUTE_BREAK) {
                 goto end;
         }
 #endif
         for(;;) {
-                if (uwsgi.p[uwsgi.wsgi_req->uh->modifier1]->request(uwsgi.wsgi_req) <= UWSGI_OK) {
+                if (uwsgi.p[wsgi_req->uh->modifier1]->request(wsgi_req) <= UWSGI_OK) {
                         break;
                 }
-                uwsgi.wsgi_req->switches++;
+                wsgi_req->switches++;
+		if (uwsgi.schedule_fix) {
+			uwsgi.schedule_fix(wsgi_req);
+		}
                 // switch after each yield
-                uwsgi.schedule_to_main(uwsgi.wsgi_req);
+                uwsgi.schedule_to_main(wsgi_req);
         }
 
 #ifdef UWSGI_ROUTING
 end:
 #endif
-        async_reset_request(uwsgi.wsgi_req);
-        uwsgi_close_request(uwsgi.wsgi_req);
-        uwsgi.wsgi_req->async_status = UWSGI_OK;
+	// re-set the global state
+	uwsgi.wsgi_req = wsgi_req;
+        async_reset_request(wsgi_req);
+        uwsgi_close_request(wsgi_req);
+	// re-set the global state (routing could have changed it)
+	uwsgi.wsgi_req = wsgi_req;
+        wsgi_req->async_status = UWSGI_OK;
+	uwsgi.async_queue_unused_ptr++;
+        uwsgi.async_queue_unused[uwsgi.async_queue_unused_ptr] = wsgi_req;
+	
 }
 
 void async_loop() {
@@ -359,7 +381,7 @@ void async_loop() {
 		uwsgi.schedule_to_req = async_schedule_to_req;
 
 	if (!uwsgi.schedule_to_main) {
-		uwsgi_log("*** WARNING *** async mode without coroutine/greenthread engine loaded !!!\n");
+		uwsgi_log("*** DANGER *** async mode without coroutine/greenthread engine loaded !!!\n");
 	}
 
 	while (uwsgi.workers[uwsgi.mywid].manage_next_request) {
@@ -502,19 +524,11 @@ void async_loop() {
 			uwsgi.wsgi_req->switches++;
 
 			// request ended ?
-			if (uwsgi.wsgi_req->async_status <= UWSGI_OK) {
+			if (uwsgi.wsgi_req->async_status <= UWSGI_OK ||
+				uwsgi.wsgi_req->waiting_fds || uwsgi.wsgi_req->async_timeout) {
 				// remove from the runqueue
 				runqueue_remove(current_request);
-				// push wsgi_request in the unused stack
-				uwsgi.async_queue_unused_ptr++;
-				uwsgi.async_queue_unused[uwsgi.async_queue_unused_ptr] = uwsgi.wsgi_req;
-
 			}
-			else if (uwsgi.wsgi_req->waiting_fds || uwsgi.wsgi_req->async_timeout) {
-				// remove this request from the runqueue
-				runqueue_remove(current_request);
-			}
-
 			current_request = next_request;
 		}
 

core/buffer.c

@@ -3,6 +3,9 @@
 extern struct uwsgi_server uwsgi;
 
 struct uwsgi_buffer *uwsgi_buffer_new(size_t len) {
+#ifdef UWSGI_DEBUG_BUFFER
+	uwsgi_log("[uwsgi-buffer] allocating a new buffer of %llu\n", (unsigned long long) len);
+#endif
 	struct uwsgi_buffer *ub = uwsgi_calloc(sizeof(struct uwsgi_buffer));
 
 	if (len) {
@@ -169,6 +172,16 @@ int uwsgi_buffer_u32be(struct uwsgi_buffer *ub, uint32_t num) {
         return uwsgi_buffer_append(ub, (char *) buf, 4);
 }
 
+int uwsgi_buffer_f32be(struct uwsgi_buffer *ub, float num) {
+        uint8_t buf[4];
+	uint32_t *pnum = (uint32_t *) #
+        buf[3] = (uint8_t) (*pnum & 0xff);
+        buf[2] = (uint8_t) ((*pnum >> 8) & 0xff);
+        buf[1] = (uint8_t) ((*pnum >> 16) & 0xff);
+        buf[0] = (uint8_t) ((*pnum >> 24) & 0xff);
+        return uwsgi_buffer_append(ub, (char *) buf, 4);
+}
+
 int uwsgi_buffer_u32le(struct uwsgi_buffer *ub, uint32_t num) {
         uint8_t buf[4];
         buf[0] = (uint8_t) (num & 0xff);
@@ -191,6 +204,33 @@ int uwsgi_buffer_u64be(struct uwsgi_buffer *ub, uint64_t num) {
         return uwsgi_buffer_append(ub, (char *) buf, 8);
 }
 
+int uwsgi_buffer_u64le(struct uwsgi_buffer *ub, uint64_t num) {
+	uint8_t buf[8];
+        buf[0] = (uint8_t) (num & 0xff);
+        buf[1] = (uint8_t) ((num >> 8) & 0xff);
+        buf[2] = (uint8_t) ((num >> 16) & 0xff);
+        buf[3] = (uint8_t) ((num >> 24) & 0xff);
+	buf[4] = (uint8_t) ((num >> 32) & 0xff);
+        buf[5] = (uint8_t) ((num >> 40) & 0xff);
+        buf[6] = (uint8_t) ((num >> 48) & 0xff);
+        buf[7] = (uint8_t) ((num >> 56) & 0xff);
+        return uwsgi_buffer_append(ub, (char *) buf, 8);
+}
+
+
+int uwsgi_buffer_f64be(struct uwsgi_buffer *ub, double num) {
+        uint8_t buf[8];
+	uint64_t *pnum = (uint64_t *) #
+        buf[7] = (uint8_t) (*pnum & 0xff);
+        buf[6] = (uint8_t) ((*pnum >> 8) & 0xff);
+        buf[5] = (uint8_t) ((*pnum >> 16) & 0xff);
+        buf[4] = (uint8_t) ((*pnum >> 24) & 0xff);
+        buf[3] = (uint8_t) ((*pnum >> 32) & 0xff);
+        buf[2] = (uint8_t) ((*pnum >> 40) & 0xff);
+        buf[1] = (uint8_t) ((*pnum >> 48) & 0xff);
+        buf[0] = (uint8_t) ((*pnum >> 56) & 0xff);
+        return uwsgi_buffer_append(ub, (char *) buf, 8);
+}
 
 int uwsgi_buffer_append_ipv4(struct uwsgi_buffer *ub, void *addr) {
 	char ip[INET_ADDRSTRLEN];
@@ -270,6 +310,13 @@ int uwsgi_buffer_append_base64(struct uwsgi_buffer *ub, char *s, size_t len) {
 
 
 void uwsgi_buffer_destroy(struct uwsgi_buffer *ub) {
+#ifdef UWSGI_DEBUG_BUFFER
+	uwsgi_log("[uwsgi-buffer] destroying buffer of %llu bytes\n", (unsigned long long) ub->len);
+	if (ub->freed) {
+		uwsgi_log("[uwsgi-buffer][BUG] buffer at %p already destroyed !!!\n", ub);
+	}
+	ub->freed = 1;
+#endif
 	if (ub->buf)
 		free(ub->buf);
 	free(ub);

core/cache.c

@@ -7,7 +7,7 @@ extern struct uwsgi_server uwsgi;
 
 /* how the cache bitmap works:
 
-	a bitmap is a shared mempry area allocated when requested by the user with --cache2
+	a bitmap is a shared memory area allocated when requested by the user with --cache2
 
 	Each block maps to a bit in the bitmap. If the corresponding bit is cleared
 	the block is usable otherwise the block scanner will search for the next one.
@@ -171,6 +171,42 @@ static void cache_sync_hook(char *k, uint16_t kl, char *v, uint16_t vl, void *da
 	}
 }
 
+static void uwsgi_cache_add_items(struct uwsgi_cache *uc) {
+	struct uwsgi_string_list *usl = uwsgi.add_cache_item;
+        while(usl) {
+                char *space = strchr(usl->value, ' ');
+		char *key = usl->value;
+		uint16_t key_len = usl->len;
+                if (space) {
+                        // need to skip ?
+                        if (uwsgi_strncmp(uc->name, uc->name_len, usl->value, space-usl->value)) {
+                                goto next;
+                        }
+                        key = space+1;
+                        key_len = usl->len - ((space-usl->value)+1);
+                }
+		char *value = strchr(key, '=');
+		if (!value) {
+			uwsgi_log("[cache] unable to store item %s\n", usl->value);
+			goto next;
+		}
+		key_len = value - key;
+		value++;
+		uint64_t len = (usl->value + usl->len) - value;
+                uwsgi_wlock(uc->lock);
+                if (!uwsgi_cache_set2(uc, key, key_len, value, len, 0, 0)) {
+                	uwsgi_log("[cache] stored \"%.*s\" in \"%s\"\n", key_len, key, uc->name);
+                }
+                else {
+                	uwsgi_log("[cache-error] unable to store \"%.*s\" in \"%s\"\n", key_len, key, uc->name);
+                }
+                uwsgi_rwunlock(uc->lock);
+next:
+                usl = usl->next;
+        }
+
+}
+
 static void uwsgi_cache_load_files(struct uwsgi_cache *uc) {
 
 	struct uwsgi_string_list *usl = uwsgi.load_file_in_cache;
@@ -289,7 +325,7 @@ void uwsgi_cache_init(struct uwsgi_cache *uc) {
 			exit(1);
 		}
 		uc->items = (struct uwsgi_cache_item *) mmap(NULL, uc->filesize, PROT_READ | PROT_WRITE, MAP_SHARED, cache_fd, 0);
-		if (!uc->items) {
+		if (uc->items == MAP_FAILED) {
 			uwsgi_error("uwsgi_cache_init()/mmap() [with store]");
 			exit(1);
 		}
@@ -299,7 +335,7 @@ void uwsgi_cache_init(struct uwsgi_cache *uc) {
 	}
 	else {
 		uc->items = (struct uwsgi_cache_item *) mmap(NULL, uc->filesize, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
-		if (!uc->items) {
+		if (uc->items == MAP_FAILED) {
 			uwsgi_error("uwsgi_cache_init()/mmap()");
 			exit(1);
 		}
@@ -341,6 +377,8 @@ void uwsgi_cache_init(struct uwsgi_cache *uc) {
 
 	uwsgi_cache_load_files(uc);
 
+	uwsgi_cache_add_items(uc);
+
 }
 
 static uint64_t uwsgi_cache_get_index(struct uwsgi_cache *uc, char *key, uint16_t keylen) {
@@ -461,6 +499,27 @@ char *uwsgi_cache_get3(struct uwsgi_cache *uc, char *key, uint16_t keylen, uint6
         return NULL;
 }
 
+char *uwsgi_cache_get4(struct uwsgi_cache *uc, char *key, uint16_t keylen, uint64_t * valsize, uint64_t *hits) {
+
+        uint64_t index = uwsgi_cache_get_index(uc, key, keylen);
+
+        if (index) {
+                struct uwsgi_cache_item *uci = cache_item(index);
+                if (uci->flags & UWSGI_CACHE_FLAG_UNGETTABLE)
+                        return NULL;
+                *valsize = uci->valsize;
+                if (hits)
+                        *hits = uci->hits;
+                uci->hits++;
+                uc->hits++;
+                return uc->data + (uci->first_block * uc->blocksize);
+        }
+
+        uc->miss++;
+
+        return NULL;
+}
+
 
 int uwsgi_cache_del2(struct uwsgi_cache *uc, char *key, uint16_t keylen, uint64_t index, uint16_t flags) {
 
@@ -714,7 +773,7 @@ int uwsgi_cache_set2(struct uwsgi_cache *uc, char *key, uint16_t keylen, char *v
 			cache_unmark_blocks(uc, uci->first_block, uci->valsize);
 		}
 		if ( !(flags & UWSGI_CACHE_FLAG_MATH)) {
-			memcpy(uc->data + (uci->first_block * uc->blocksize), val, vallen);
+			memcpy(((char *) uc->data) + (uci->first_block * uc->blocksize), val, vallen);
 		}
 		else {
 			int64_t *num = (int64_t *)(((char *) uc->data) + (uci->first_block * uc->blocksize));
@@ -1132,26 +1191,23 @@ struct uwsgi_cache *uwsgi_cache_create(char *arg) {
 		uc->store = c_store;
 
 		if (c_nodes) {
-			char *p = strtok(c_nodes, ";");
-			while(p) {
+			char *p, *ctx = NULL;
+			uwsgi_foreach_token(c_nodes, ";", p, ctx) {
 				uwsgi_string_new_list(&uc->nodes, p);
-				p = strtok(NULL, ";");
 			}
 		}
 
 		if (c_sync) {
-			char *p = strtok(c_sync, ";");
-                        while(p) {
+			char *p, *ctx = NULL;
+			uwsgi_foreach_token(c_sync, ";", p, ctx) {
                                 uwsgi_string_new_list(&uc->sync_nodes, p);
-                                p = strtok(NULL, ";");
                         }
 		}
 
 		if (c_udp_servers) {
-                        char *p = strtok(c_udp_servers, ";");
-                        while(p) {
+			char *p, *ctx = NULL;
+                        uwsgi_foreach_token(c_udp_servers, ";", p, ctx) {
                                 uwsgi_string_new_list(&uc->udp_servers, p);
-                                p = strtok(NULL, ";");
                         }
                 }
 		
@@ -1862,3 +1918,36 @@ void uwsgi_cache_setup_nodes(struct uwsgi_cache *uc) {
 	}
 }
 
+struct uwsgi_cache_item *uwsgi_cache_keys(struct uwsgi_cache *uc, uint64_t *pos, struct uwsgi_cache_item **uci) {
+
+	// security check
+	if (*pos >= uc->hashsize) return NULL;
+	// iterate hashtable
+	uint64_t orig_pos = *pos;
+	for(;*pos<uc->hashsize;(*pos)++) {
+		// get the cache slot
+		uint64_t slot = uc->hashtable[*pos];
+		if (*pos == orig_pos && *uci) {
+			slot = (*uci)->next;	
+		}
+		if (slot == 0) continue;
+
+		*uci = cache_item(slot);
+		return *uci;
+	}
+
+	(*pos)++;
+	return NULL;
+}
+
+void uwsgi_cache_rlock(struct uwsgi_cache *uc) {
+	uwsgi_rlock(uc->lock);
+}
+
+void uwsgi_cache_rwunlock(struct uwsgi_cache *uc) {
+	uwsgi_rwunlock(uc->lock);
+}
+
+char *uwsgi_cache_item_key(struct uwsgi_cache_item *uci) {
+	return uci->key;
+}

core/chunked.c

@@ -0,0 +1,162 @@
+#include <uwsgi.h>
+
+extern struct uwsgi_server uwsgi;
+
+/*
+
+	Chunked input implementation
+
+	--chunked-input-limit <bytes> (default 1MB)
+
+	--chunked-input-timeout <s> (default --socket-timeout)
+
+	chunk = uwsgi.chunked_read([timeout])
+
+	timeout = -1 (wait forever)
+	timeout = 0 (default)
+
+*/
+
+static ssize_t uwsgi_chunked_input_recv(struct wsgi_request *wsgi_req, int timeout, int nb) {
+
+	if (timeout == 0) timeout = uwsgi.chunked_input_timeout;
+	if (timeout == 0) timeout = uwsgi.shared->options[UWSGI_OPTION_SOCKET_TIMEOUT];
+
+	int ret = -1;
+
+	for(;;) {
+		ssize_t rlen = wsgi_req->socket->proto_read_body(wsgi_req, wsgi_req->chunked_input_buf->buf + wsgi_req->chunked_input_buf->pos, wsgi_req->chunked_input_buf->len - wsgi_req->chunked_input_buf->pos);
+		if (rlen > 0) return rlen;
+		if (rlen == 0) return -1;
+		if (rlen < 0) {
+                        if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINPROGRESS) {
+				if (nb) return -1; 
+                                goto wait;
+                        }
+                        uwsgi_error("uwsgi_chunked_input_recv()");
+                        return -1;
+                }
+
+wait:
+                ret = uwsgi.wait_read_hook(wsgi_req->fd, timeout);
+                if (ret > 0) {
+			rlen = wsgi_req->socket->proto_read_body(wsgi_req, wsgi_req->chunked_input_buf->buf + wsgi_req->chunked_input_buf->pos, wsgi_req->chunked_input_buf->len - wsgi_req->chunked_input_buf->pos);
+			if (rlen > 0) return rlen;
+			if (rlen <= 0) return -1;
+		}
+                if (ret < 0) {
+			uwsgi_error("uwsgi_chunked_input_recv()");
+                }
+		return -1;
+	}
+
+        return -1;
+}
+
+static ssize_t uwsgi_chunked_readline(struct wsgi_request *wsgi_req) {
+	size_t i;
+	int found = 0;
+	for(i=0;i<wsgi_req->chunked_input_buf->pos;i++) {
+		if (found) {
+			if (wsgi_req->chunked_input_buf->buf[i] == '\n') {
+				// strtoul will stop at \r
+				size_t num =  strtoul(wsgi_req->chunked_input_buf->buf, NULL, 16);
+				if (uwsgi_buffer_decapitate(wsgi_req->chunked_input_buf, i+1)) return -1;
+				return num;
+			}
+			return -1;
+		}
+		if ((wsgi_req->chunked_input_buf->buf[i] >= '0' && wsgi_req->chunked_input_buf->buf[i] <= '9') || 
+			(wsgi_req->chunked_input_buf->buf[i] >= 'a' && wsgi_req->chunked_input_buf->buf[i] <= 'z') ||
+			(wsgi_req->chunked_input_buf->buf[i] >= 'A' && wsgi_req->chunked_input_buf->buf[i] <= 'Z')) continue;
+		if (wsgi_req->chunked_input_buf->buf[i] == '\r') { found = 1; continue; }
+		return -1;
+	}
+
+	return -2;
+}
+
+/*
+
+	0 -> waiting for \r\n
+	1 -> waiting for whole body
+
+*/
+
+char *uwsgi_chunked_read(struct wsgi_request *wsgi_req, size_t *len, int timeout, int nb) {
+
+	if (!wsgi_req->chunked_input_buf) {
+		wsgi_req->chunked_input_buf = uwsgi_buffer_new(uwsgi.page_size);
+		wsgi_req->chunked_input_buf->limit = uwsgi.chunked_input_limit;
+	}
+
+	// the whole chunk stream has been consumed
+	if (wsgi_req->chunked_input_complete) {
+		*len = 0;
+		return wsgi_req->chunked_input_buf->buf;
+	}
+
+	if (wsgi_req->chunked_input_decapitate > 0) {
+		if (uwsgi_buffer_decapitate(wsgi_req->chunked_input_buf, wsgi_req->chunked_input_decapitate)) return NULL;
+		wsgi_req->chunked_input_decapitate = 0;
+	}
+
+	for(;;) {
+		if (wsgi_req->chunked_input_need > 0 || wsgi_req->chunked_input_buf->pos == 0) {
+			if (uwsgi_buffer_ensure(wsgi_req->chunked_input_buf, UMAX((uint64_t)uwsgi.page_size, wsgi_req->chunked_input_need))) return NULL;
+			ssize_t rlen = uwsgi_chunked_input_recv(wsgi_req, timeout, nb);	
+			if (rlen <= 0) return NULL;
+			// update buffer position
+			wsgi_req->chunked_input_buf->pos += rlen;
+			if (wsgi_req->chunked_input_need > 0) {
+				if ((size_t)rlen > wsgi_req->chunked_input_need) {
+					wsgi_req->chunked_input_need = 0;
+				}
+				else {
+					wsgi_req->chunked_input_need -= rlen;
+				}
+			}
+		}
+
+		if (wsgi_req->chunked_input_need > 0) continue;
+
+		// ok we have a frame, let's parse it
+		if (wsgi_req->chunked_input_buf->pos > 0) {
+			switch(wsgi_req->chunked_input_parser_status) {
+				case 0:
+					wsgi_req->chunked_input_chunk_len = uwsgi_chunked_readline(wsgi_req);
+					if (wsgi_req->chunked_input_chunk_len == -2) {
+						wsgi_req->chunked_input_need++;
+						break;
+					}
+					else if (wsgi_req->chunked_input_chunk_len < 0) {
+						return NULL;
+					}
+					else if (wsgi_req->chunked_input_chunk_len == 0) {
+						*len = 0;
+						wsgi_req->chunked_input_complete = 1;
+						return wsgi_req->chunked_input_buf->buf;
+					}
+					// if here the buffer has been already decapitated
+					if ((size_t)(wsgi_req->chunked_input_chunk_len+2) > wsgi_req->chunked_input_buf->pos) {
+						wsgi_req->chunked_input_need = (wsgi_req->chunked_input_chunk_len+2) - wsgi_req->chunked_input_buf->pos;
+						wsgi_req->chunked_input_parser_status = 1;
+						break;
+					}
+					*len = wsgi_req->chunked_input_chunk_len;
+					wsgi_req->chunked_input_decapitate = wsgi_req->chunked_input_chunk_len+2;
+					return wsgi_req->chunked_input_buf->buf;
+				case 1:
+					if ((size_t)(wsgi_req->chunked_input_chunk_len+2) > wsgi_req->chunked_input_buf->pos) {
+                                                wsgi_req->chunked_input_need = (wsgi_req->chunked_input_chunk_len+2) - wsgi_req->chunked_input_buf->pos;
+						break;
+                                        }	
+					*len = wsgi_req->chunked_input_chunk_len;
+					wsgi_req->chunked_input_decapitate = wsgi_req->chunked_input_chunk_len+2;
+					wsgi_req->chunked_input_parser_status = 0;
+                                        return wsgi_req->chunked_input_buf->buf;
+					
+			}
+		}
+	}
+}

core/clang_fake.c

@@ -0,0 +1 @@
+int main() {}

core/config.c

@@ -31,3 +31,605 @@ struct uwsgi_configurator *uwsgi_register_configurator(char *name, void (*func)(
 
         return uc;
 }
+
+int uwsgi_logic_opt_if_exists(char *key, char *value) {
+
+        if (uwsgi_file_exists(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+int uwsgi_logic_opt_if_not_exists(char *key, char *value) {
+
+        if (!uwsgi_file_exists(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+
+int uwsgi_logic_opt_for(char *key, char *value) {
+
+        char *p, *ctx = NULL;
+	uwsgi_foreach_token(uwsgi.logic_opt_data, " ", p, ctx) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", p), 0);
+        }
+
+        return 1;
+}
+
+int uwsgi_logic_opt_for_glob(char *key, char *value) {
+
+        glob_t g;
+        int i;
+        if (glob(uwsgi.logic_opt_data, GLOB_MARK | GLOB_NOCHECK, NULL, &g)) {
+                uwsgi_error("uwsgi_logic_opt_for_glob()");
+                return 0;
+        }
+
+        for (i = 0; i < (int) g.gl_pathc; i++) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", g.gl_pathv[i]), 0);
+        }
+
+        globfree(&g);
+
+        return 1;
+}
+
+int uwsgi_logic_opt_for_times(char *key, char *value) {
+
+        int num = atoi(uwsgi.logic_opt_data);
+        int i;
+        char str_num[11];
+
+        for (i = 1; i <= num; i++) {
+                int ret = uwsgi_num2str2(i, str_num);
+                // security check
+                if (ret < 0 || ret > 11) {
+                        exit(1);
+                }
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", str_num), 0);
+        }
+
+        return 1;
+}
+
+
+int uwsgi_logic_opt_if_opt(char *key, char *value) {
+
+        // check for env-value syntax
+        char *equal = strchr(uwsgi.logic_opt_data, '=');
+        if (equal)
+                *equal = 0;
+
+        char *p = uwsgi_get_exported_opt(uwsgi.logic_opt_data);
+        if (equal)
+                *equal = '=';
+
+        if (p) {
+                if (equal) {
+                        if (strcmp(equal + 1, p))
+                                return 0;
+                }
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", p), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+
+int uwsgi_logic_opt_if_not_opt(char *key, char *value) {
+
+        // check for env-value syntax
+        char *equal = strchr(uwsgi.logic_opt_data, '=');
+        if (equal)
+                *equal = 0;
+
+        char *p = uwsgi_get_exported_opt(uwsgi.logic_opt_data);
+        if (equal)
+                *equal = '=';
+
+        if (p) {
+                if (equal) {
+                        if (!strcmp(equal + 1, p))
+                                return 0;
+                }
+                else {
+                        return 0;
+                }
+        }
+
+        add_exported_option(key, uwsgi_substitute(value, "%(_)", p), 0);
+        return 1;
+}
+
+
+
+int uwsgi_logic_opt_if_env(char *key, char *value) {
+
+        // check for env-value syntax
+        char *equal = strchr(uwsgi.logic_opt_data, '=');
+        if (equal)
+                *equal = 0;
+
+        char *p = getenv(uwsgi.logic_opt_data);
+        if (equal)
+                *equal = '=';
+
+        if (p) {
+                if (equal) {
+                        if (strcmp(equal + 1, p))
+                                return 0;
+                }
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", p), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+
+int uwsgi_logic_opt_if_not_env(char *key, char *value) {
+
+        // check for env-value syntax
+        char *equal = strchr(uwsgi.logic_opt_data, '=');
+        if (equal)
+                *equal = 0;
+
+        char *p = getenv(uwsgi.logic_opt_data);
+        if (equal)
+                *equal = '=';
+
+        if (p) {
+                if (equal) {
+                        if (!strcmp(equal + 1, p))
+                                return 0;
+                }
+                else {
+                        return 0;
+                }
+        }
+
+        add_exported_option(key, uwsgi_substitute(value, "%(_)", p), 0);
+        return 1;
+}
+
+int uwsgi_logic_opt_if_reload(char *key, char *value) {
+        if (uwsgi.is_a_reload) {
+                add_exported_option(key, value, 0);
+                return 1;
+        }
+        return 0;
+}
+
+int uwsgi_logic_opt_if_not_reload(char *key, char *value) {
+        if (!uwsgi.is_a_reload) {
+                add_exported_option(key, value, 0);
+                return 1;
+        }
+        return 0;
+}
+
+int uwsgi_logic_opt_if_file(char *key, char *value) {
+
+        if (uwsgi_is_file(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+int uwsgi_logic_opt_if_not_file(char *key, char *value) {
+
+        if (!uwsgi_is_file(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+int uwsgi_logic_opt_if_dir(char *key, char *value) {
+
+        if (uwsgi_is_dir(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+int uwsgi_logic_opt_if_not_dir(char *key, char *value) {
+
+        if (!uwsgi_is_dir(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+
+
+int uwsgi_logic_opt_if_plugin(char *key, char *value) {
+
+        if (plugin_already_loaded(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+int uwsgi_logic_opt_if_not_plugin(char *key, char *value) {
+
+        if (!plugin_already_loaded(uwsgi.logic_opt_data)) {
+                add_exported_option(key, uwsgi_substitute(value, "%(_)", uwsgi.logic_opt_data), 0);
+                return 1;
+        }
+
+        return 0;
+}
+
+int uwsgi_count_options(struct uwsgi_option *uopt) {
+
+        struct uwsgi_option *aopt;
+        int count = 0;
+
+        while ((aopt = uopt)) {
+                if (!aopt->name)
+                        break;
+                count++;
+                uopt++;
+        }
+
+        return count;
+}
+
+int uwsgi_opt_exists(char *name) {
+	struct uwsgi_option *op = uwsgi.options;
+	while (op->name) {
+		if (!strcmp(name, op->name)) return 1;
+		op++;
+	}
+	return 0;	
+}
+
+/*
+	avoid loops here !!!
+*/
+struct uwsgi_option *uwsgi_opt_get(char *name) {
+        struct uwsgi_option *op;
+	int round = 0;
+retry:
+	round++;
+	if (round > 2) goto end;
+	op = uwsgi.options;
+
+        while (op->name) {
+                if (!strcmp(name, op->name)) {
+                        return op;
+                }
+                op++;
+        }
+
+	if (uwsgi.autoload) {
+		if (uwsgi_try_autoload(name)) goto retry;
+	}
+
+end:
+	if (uwsgi.strict) {
+                uwsgi_log("[strict-mode] unknown config directive: %s\n", name);
+                exit(1);
+        }
+
+        return NULL;
+}
+
+
+
+void add_exported_option(char *key, char *value, int configured) {
+	add_exported_option_do(key, value, configured, 0);
+}
+
+void add_exported_option_do(char *key, char *value, int configured, int placeholder_only) {
+
+	struct uwsgi_string_list *blacklist = uwsgi.blacklist;
+	struct uwsgi_string_list *whitelist = uwsgi.whitelist;
+
+	while (blacklist) {
+		if (!strcmp(key, blacklist->value)) {
+			uwsgi_log("uWSGI error: forbidden option \"%s\" (by blacklist)\n", key);
+			exit(1);
+		}
+		blacklist = blacklist->next;
+	}
+
+	if (whitelist) {
+		int allowed = 0;
+		while (whitelist) {
+			if (!strcmp(key, whitelist->value)) {
+				allowed = 1;
+				break;
+			}
+			whitelist = whitelist->next;
+		}
+		if (!allowed) {
+			uwsgi_log("uWSGI error: forbidden option \"%s\" (by whitelist)\n", key);
+			exit(1);
+		}
+	}
+
+	if (uwsgi.blacklist_context) {
+		if (uwsgi_list_has_str(uwsgi.blacklist_context, key)) {
+			uwsgi_log("uWSGI error: forbidden option \"%s\" (by blacklist)\n", key);
+			exit(1);
+		}
+	}
+
+	if (uwsgi.whitelist_context) {
+                if (!uwsgi_list_has_str(uwsgi.whitelist_context, key)) {
+                        uwsgi_log("uWSGI error: forbidden option \"%s\" (by whitelist)\n", key);
+                        exit(1);
+                }
+        }
+
+	if (uwsgi.logic_opt_running)
+		goto add;
+
+	if (!strcmp(key, "end") || !strcmp(key, "endfor") || !strcmp(key, "endif")) {
+		if (uwsgi.logic_opt_data) {
+			free(uwsgi.logic_opt_data);
+		}
+		uwsgi.logic_opt = NULL;
+		uwsgi.logic_opt_arg = NULL;
+		uwsgi.logic_opt_cycles = 0;
+		uwsgi.logic_opt_data = NULL;
+	}
+
+	if (uwsgi.logic_opt) {
+		if (uwsgi.logic_opt_data) {
+			free(uwsgi.logic_opt_data);
+		}
+		uwsgi.logic_opt_data = uwsgi_str(uwsgi.logic_opt_arg);
+		uwsgi.logic_opt_cycles++;
+		uwsgi.logic_opt_running = 1;
+		uwsgi.logic_opt(key, value);
+		uwsgi.logic_opt_running = 0;
+		return;
+	}
+
+add:
+
+	if (!uwsgi.exported_opts) {
+		uwsgi.exported_opts = uwsgi_malloc(sizeof(struct uwsgi_opt *));
+	}
+	else {
+		uwsgi.exported_opts = realloc(uwsgi.exported_opts, sizeof(struct uwsgi_opt *) * (uwsgi.exported_opts_cnt + 1));
+		if (!uwsgi.exported_opts) {
+			uwsgi_error("realloc()");
+			exit(1);
+		}
+	}
+
+	int id = uwsgi.exported_opts_cnt;
+	uwsgi.exported_opts[id] = uwsgi_malloc(sizeof(struct uwsgi_opt));
+	uwsgi.exported_opts[id]->key = key;
+	uwsgi.exported_opts[id]->value = value;
+	uwsgi.exported_opts[id]->configured = configured;
+	uwsgi.exported_opts_cnt++;
+	uwsgi.dirty_config = 1;
+
+	if (placeholder_only) {
+		if (uwsgi_opt_exists(key)) {
+			uwsgi_log("you cannot use %s as a placeholder, it is already available as an option\n");
+			exit(1);
+		}
+		uwsgi.exported_opts[id]->configured = 1;
+		return;
+	}
+
+	struct uwsgi_option *op = uwsgi_opt_get(key);
+	if (op) {
+		// requires master ?
+		if (op->flags & UWSGI_OPT_MASTER) {
+			uwsgi.master_process = 1;
+		}
+		// requires log_master ?
+		if (op->flags & UWSGI_OPT_LOG_MASTER) {
+			uwsgi.master_process = 1;
+			uwsgi.log_master = 1;
+		}
+		if (op->flags & UWSGI_OPT_REQ_LOG_MASTER) {
+			uwsgi.master_process = 1;
+			uwsgi.log_master = 1;
+			uwsgi.req_log_master = 1;
+		}
+		// requires threads ?
+		if (op->flags & UWSGI_OPT_THREADS) {
+			uwsgi.has_threads = 1;
+		}
+		// requires cheaper mode ?
+		if (op->flags & UWSGI_OPT_CHEAPER) {
+			uwsgi.cheaper = 1;
+		}
+		// requires virtualhosting ?
+		if (op->flags & UWSGI_OPT_VHOST) {
+			uwsgi.vhost = 1;
+		}
+		// requires memusage ?
+		if (op->flags & UWSGI_OPT_MEMORY) {
+			uwsgi.force_get_memusage = 1;
+		}
+		// requires auto procname ?
+		if (op->flags & UWSGI_OPT_PROCNAME) {
+			uwsgi.auto_procname = 1;
+		}
+		// requires lazy ?
+		if (op->flags & UWSGI_OPT_LAZY) {
+			uwsgi.lazy = 1;
+		}
+		// requires no_initial ?
+		if (op->flags & UWSGI_OPT_NO_INITIAL) {
+			uwsgi.no_initial_output = 1;
+		}
+		// requires no_server ?
+		if (op->flags & UWSGI_OPT_NO_SERVER) {
+			uwsgi.no_server = 1;
+		}
+		// requires post_buffering ?
+		if (op->flags & UWSGI_OPT_POST_BUFFERING) {
+			if (!uwsgi.post_buffering)
+				uwsgi.post_buffering = 4096;
+		}
+		// requires building mime dict ?
+		if (op->flags & UWSGI_OPT_MIME) {
+			uwsgi.build_mime_dict = 1;
+		}
+		// enable metrics ?
+		if (op->flags & UWSGI_OPT_METRICS) {
+                        uwsgi.has_metrics = 1;
+                }
+		// immediate ?
+		if (op->flags & UWSGI_OPT_IMMEDIATE) {
+			op->func(key, value, op->data);
+			uwsgi.exported_opts[id]->configured = 1;
+		}
+	}
+}
+
+void uwsgi_fallback_config() {
+	if (uwsgi.fallback_config && uwsgi.last_exit_code == 1) {
+		uwsgi_log_verbose("!!! %s (pid: %d) exited with status %d !!!\n", uwsgi.binary_path, (int) getpid(), uwsgi.last_exit_code);
+		uwsgi_log_verbose("!!! Fallback config to %s !!!\n", uwsgi.fallback_config);
+		char *argv[3];
+		argv[0] = uwsgi.binary_path;
+		argv[1] = uwsgi.fallback_config;
+		argv[2] = NULL;
+        	execvp(uwsgi.binary_path, argv);
+        	uwsgi_error("execvp()");
+        	// never here
+	}
+}
+
+int uwsgi_manage_opt(char *key, char *value) {
+
+        struct uwsgi_option *op = uwsgi_opt_get(key);
+	if (op) {
+        	op->func(key, value, op->data);
+                return 1;
+        }
+        return 0;
+
+}
+
+void uwsgi_configure() {
+
+        int i;
+
+        // and now apply the remaining configs
+restart:
+        for (i = 0; i < uwsgi.exported_opts_cnt; i++) {
+                if (uwsgi.exported_opts[i]->configured)
+                        continue;
+                uwsgi.dirty_config = 0;
+                uwsgi.exported_opts[i]->configured = uwsgi_manage_opt(uwsgi.exported_opts[i]->key, uwsgi.exported_opts[i]->value);
+		// some option could cause a dirty config tree
+                if (uwsgi.dirty_config)
+                        goto restart;
+        }
+
+}
+
+
+void uwsgi_opt_custom(char *key, char *value, void *data ) {
+        struct uwsgi_custom_option *uco = (struct uwsgi_custom_option *)data;
+        size_t i, count = 1;
+        size_t value_len = 0;
+        if (value)
+                value_len = strlen(value);
+        off_t pos = 0;
+        char **opt_argv;
+        char *tmp_val = NULL, *p = NULL;
+
+        // now count the number of args
+        for (i = 0; i < value_len; i++) {
+                if (value[i] == ' ') {
+                        count++;
+                }
+        }
+
+        // allocate a tmp array
+        opt_argv = uwsgi_calloc(sizeof(char *) * count);
+        //make a copy of the value;
+        if (value_len > 0) {
+                tmp_val = uwsgi_str(value);
+                // fill the array of options
+                char *p, *ctx = NULL;
+                uwsgi_foreach_token(tmp_val, " ", p, ctx) {
+                        opt_argv[pos] = p;
+                        pos++;
+                }
+        }
+        else {
+                // no argument specified
+                opt_argv[0] = "";
+        }
+
+#ifdef UWSGI_DEBUG
+        uwsgi_log("found custom option %s with %d args\n", key, count);
+#endif
+
+        // now make a copy of the option template
+        char *tmp_opt = uwsgi_str(uco->value);
+        // split it
+        char *ctx = NULL;
+        uwsgi_foreach_token(tmp_opt, ";", p, ctx) {
+                char *equal = strchr(p, '=');
+                if (!equal)
+                        goto clear;
+                *equal = '\0';
+
+                // build the key
+                char *new_key = uwsgi_str(p);
+                for (i = 0; i < count; i++) {
+                        char *old_key = new_key;
+                        char *tmp_num = uwsgi_num2str(i + 1);
+                        char *placeholder = uwsgi_concat2((char *) "$", tmp_num);
+                        free(tmp_num);
+                        new_key = uwsgi_substitute(old_key, placeholder, opt_argv[i]);
+                        if (new_key != old_key)
+                                free(old_key);
+                        free(placeholder);
+                }
+
+                // build the value
+                char *new_value = uwsgi_str(equal + 1);
+                for (i = 0; i < count; i++) {
+                        char *old_value = new_value;
+                        char *tmp_num = uwsgi_num2str(i + 1);
+                        char *placeholder = uwsgi_concat2((char *) "$", tmp_num);
+                        free(tmp_num);
+                        new_value = uwsgi_substitute(old_value, placeholder, opt_argv[i]);
+                        if (new_value != old_value)
+                                free(old_value);
+                        free(placeholder);
+                }
+                // ignore return value here
+                uwsgi_manage_opt(new_key, new_value);
+        }
+
+clear:
+        free(tmp_val);
+        free(tmp_opt);
+        free(opt_argv);
+
+}
+

core/daemons.c

@@ -77,8 +77,14 @@ void uwsgi_daemons_smart_check() {
 				else {
 					ud->pidfile_checks++;
 					if (ud->pidfile_checks >= (unsigned int) ud->freq) {
-						uwsgi_log("[uwsgi-daemons] found changed pidfile for \"%s\" (old_pid: %d new_pid: %d)\n", ud->command, (int) ud->pid, (int) checked_pid);
-						uwsgi_spawn_daemon(ud);
+						if (!ud->has_daemonized) {
+							uwsgi_log_verbose("[uwsgi-daemons] \"%s\" (pid: %d) did not daemonize !!!\n", ud->command, (int) ud->pid);
+							ud->pidfile_checks = 0;
+						}
+						else {
+							uwsgi_log("[uwsgi-daemons] found changed pidfile for \"%s\" (old_pid: %d new_pid: %d)\n", ud->command, (int) ud->pid, (int) checked_pid);
+							uwsgi_spawn_daemon(ud);
+						}
 					}
 				}
 			}
@@ -99,10 +105,20 @@ void uwsgi_daemons_smart_check() {
 int uwsgi_daemon_check_pid_death(pid_t diedpid) {
 	struct uwsgi_daemon *ud = uwsgi.daemons;
 	while (ud) {
-		if (ud->pid == diedpid && !ud->pidfile) {
-			uwsgi_log("daemon \"%s\" (pid: %d) annihilated\n", ud->command, (int) diedpid);
-			ud->pid = -1;
-			return -1;
+		if (ud->pid == diedpid) {
+			if (!ud->pidfile) {
+				uwsgi_log("daemon \"%s\" (pid: %d) annihilated\n", ud->command, (int) diedpid);
+				ud->pid = -1;
+				return -1;
+			}
+			else {
+				if (!ud->has_daemonized) {
+					ud->has_daemonized = 1;
+				}
+				else {
+					uwsgi_log("[uwsgi-daemons] BUG !!! daemon \"%s\" has already daemonized !!!\n", ud->command);
+				}
+			}
 		}
 		ud = ud->next;
 	}
@@ -123,6 +139,10 @@ int uwsgi_daemon_check_pid_reload(pid_t diedpid) {
 		}
 #endif
 		if (ud->pid == diedpid && !ud->pidfile) {
+			if (ud->control) {
+				gracefully_kill_them_all(0);
+				return 0;
+			}
 			uwsgi_spawn_daemon(ud);
 			return 1;
 		}
@@ -213,13 +233,15 @@ void uwsgi_detach_daemons() {
 #endif
 			uwsgi_log("[uwsgi-daemons] stopping daemon (pid: %d): %s\n", (int) ud->pid, ud->command);
 			// try to gracefully stop daemon, kill it if it won't die
-			// if mercy is not set than wait up to 3 seconds
+			// if mercy is not set then wait up to 3 seconds
 			time_t timeout = uwsgi_now() + (uwsgi.reload_mercy ? uwsgi.reload_mercy : 3);
+			int waitpid_status;
 			while (!kill(ud->pid, 0)) {
 				kill(-ud->pid, SIGTERM);
 				sleep(1);
+				waitpid(-ud->pid, &waitpid_status, WNOHANG);
 				if (uwsgi_now() >= timeout) {
-					uwsgi_log("[uwsgi-daemons] daemon did not died in time, killing (pid: %d): %s\n", (int) ud->pid, ud->command);
+					uwsgi_log("[uwsgi-daemons] daemon did not die in time, killing (pid: %d): %s\n", (int) ud->pid, ud->command);
 					kill(-ud->pid, SIGKILL);
 					break;
 				}
@@ -237,11 +259,12 @@ void uwsgi_spawn_daemon(struct uwsgi_daemon *ud) {
 	// skip unregistered daemons
 	if (!ud->registered) return;
 
-	int devnull = -1;
 	int throttle = 0;
 
 	if (uwsgi.current_time - ud->last_spawn <= 3) {
 		throttle = ud->respawns - (uwsgi.current_time - ud->last_spawn);
+		// if ud->respawns == 0 then we can end up with throttle < 0
+		if (throttle <= 0) throttle = 1;
 	}
 
 	pid_t pid = uwsgi_fork("uWSGI external daemon");
@@ -251,6 +274,7 @@ void uwsgi_spawn_daemon(struct uwsgi_daemon *ud) {
 	}
 
 	if (pid > 0) {
+		ud->has_daemonized = 0;
 		ud->pid = pid;
 		ud->status = 1;
 		ud->pidfile_checks = 0;
@@ -282,18 +306,7 @@ void uwsgi_spawn_daemon(struct uwsgi_daemon *ud) {
 
 		if (!uwsgi.daemons_honour_stdin) {
 			// /dev/null will became stdin
-			devnull = open("/dev/null", O_RDONLY);
-			if (devnull < 0) {
-				uwsgi_error("/dev/null open()");
-				exit(1);
-			}
-			if (devnull != 0) {
-				if (dup2(devnull, 0) < 0) {
-					uwsgi_error("dup2()");
-					exit(1);
-				}
-				close(devnull);
-			}
+			uwsgi_remap_fd(0, "/dev/null");
 		}
 
 		if (setsid() < 0) {
@@ -312,7 +325,7 @@ void uwsgi_spawn_daemon(struct uwsgi_daemon *ud) {
 
 		if (throttle) {
 			uwsgi_log("[uwsgi-daemons] throttling \"%s\" for %d seconds\n", ud->command, throttle);
-			sleep(throttle);
+			sleep((unsigned int) throttle);
 		}
 
 		uwsgi_log("[uwsgi-daemons] %sspawning \"%s\"\n", ud->respawns > 0 ? "re" : "", ud->command);
@@ -395,6 +408,10 @@ void uwsgi_opt_add_daemon(char *opt, char *value, void *none) {
 	uwsgi_ud->last_spawn = 0;
 	uwsgi_ud->daemonize = daemonize;
 	uwsgi_ud->pidfile = pidfile;
+	uwsgi_ud->control = 0;
+	if (!strcmp(opt, "attach-control-daemon")) {
+		uwsgi_ud->control = 1;
+	}
 #ifdef UWSGI_SSL
 	uwsgi_ud->legion = legion;
 #endif

core/emperor.c

@@ -234,11 +234,18 @@ void uwsgi_imperial_monitor_directory(struct uwsgi_emperor_scanner *ues) {
 		if (!uwsgi_emperor_is_valid(de->d_name))
 			continue;
 
-		if (stat(de->d_name, &st))
-			continue;
-
-		if (!S_ISREG(st.st_mode))
-			continue;
+		if (uwsgi.emperor_nofollow) {
+			if (lstat(de->d_name, &st))
+				continue;
+			if (!S_ISLNK(st.st_mode) && !S_ISREG(st.st_mode))
+				continue;
+		}
+		else {
+			if (stat(de->d_name, &st))
+				continue;
+			if (!S_ISREG(st.st_mode))
+				continue;
+		}
 
 		ui_current = emperor_get(de->d_name);
 
@@ -294,16 +301,30 @@ void uwsgi_imperial_monitor_directory(struct uwsgi_emperor_scanner *ues) {
 				else {
 					char *filename = uwsgi_calloc(0xff);
 					memcpy(filename, c_ui->name, colon - c_ui->name);
-					if (stat(filename, &st)) {
-						emperor_stop(c_ui);
+					if (uwsgi.emperor_nofollow) {
+						if (lstat(filename, &st)) {
+							emperor_stop(c_ui);
+						}
+					}
+					else {
+						if (stat(filename, &st)) {
+							emperor_stop(c_ui);
+						}
 					}
 					free(filename);
 				}
 			}
 			else {
-                                if (stat(c_ui->name, &st)) {
-                                       	emperor_stop(c_ui);
-                                }
+				if (uwsgi.emperor_nofollow) {
+                                	if (lstat(c_ui->name, &st)) {
+                                       		emperor_stop(c_ui);
+                                	}
+				}
+				else {
+                                	if (stat(c_ui->name, &st)) {
+                                       		emperor_stop(c_ui);
+                                	}
+				}
 			}
 		}
 		c_ui = c_ui->ui_next;
@@ -318,8 +339,13 @@ void uwsgi_imperial_monitor_glob(struct uwsgi_emperor_scanner *ues) {
 	struct stat st;
 	struct uwsgi_instance *ui_current;
 
+	if (chdir(uwsgi.cwd)) {
+		uwsgi_error("uwsgi_imperial_monitor_glob()/chdir()");
+		exit(1);
+	}
+
 	if (glob(ues->arg, GLOB_MARK | GLOB_NOCHECK, NULL, &g)) {
-		uwsgi_error("glob()");
+		uwsgi_error("uwsgi_imperial_monitor_glob()/glob()");
 		return;
 	}
 
@@ -328,11 +354,18 @@ void uwsgi_imperial_monitor_glob(struct uwsgi_emperor_scanner *ues) {
 		if (!uwsgi_emperor_is_valid(g.gl_pathv[i]))
 			continue;
 
-		if (stat(g.gl_pathv[i], &st))
-			continue;
-
-		if (!S_ISREG(st.st_mode))
-			continue;
+		if (uwsgi.emperor_nofollow) {
+			if (lstat(g.gl_pathv[i], &st))
+				continue;
+			if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode))
+				continue;
+		}
+		else {
+			if (stat(g.gl_pathv[i], &st))
+				continue;
+			if (!S_ISREG(st.st_mode))
+				continue;
+		}
 
 		ui_current = emperor_get(g.gl_pathv[i]);
 
@@ -389,16 +422,30 @@ void uwsgi_imperial_monitor_glob(struct uwsgi_emperor_scanner *ues) {
                                 else {
                                         char *filename = uwsgi_calloc(0xff);
                                         memcpy(filename, c_ui->name, colon - c_ui->name);
-                                        if (stat(filename, &st)) {
-                                                emperor_stop(c_ui);
-                                        }
+					if (uwsgi.emperor_nofollow) {
+                                        	if (lstat(filename, &st)) {
+                                                	emperor_stop(c_ui);
+                                        	}
+					}
+					else {
+                                        	if (stat(filename, &st)) {
+                                                	emperor_stop(c_ui);
+                                        	}
+					}
                                         free(filename);
                                 }
                         }
                         else {
-                                if (stat(c_ui->name, &st)) { 
-                                        emperor_stop(c_ui);
-                                }       
+				if (uwsgi.emperor_nofollow) {
+                                	if (lstat(c_ui->name, &st)) { 
+                                        	emperor_stop(c_ui);
+                                	}
+				}
+				else {
+                                	if (stat(c_ui->name, &st)) { 
+                                        	emperor_stop(c_ui);
+                                	}
+				}
                         }
 		}
 		c_ui = c_ui->ui_next;
@@ -575,24 +622,38 @@ void emperor_del(struct uwsgi_instance *c_ui) {
 }
 
 void emperor_stop(struct uwsgi_instance *c_ui) {
+	if (c_ui->status == 1) return;
 	// remove uWSGI instance
 
 	if (write(c_ui->pipe[0], "\0", 1) != 1) {
-		uwsgi_error("write()");
+		uwsgi_error("emperor_stop()/write()");
 	}
 
 	c_ui->status = 1;
+	c_ui->cursed_at = uwsgi_now();
 
 	uwsgi_log("[emperor] stop the uwsgi instance %s\n", c_ui->name);
 }
 
+void emperor_curse(struct uwsgi_instance *c_ui) {
+	if (c_ui->status == 1) return;
+        // curse uWSGI instance
+
+        c_ui->status = 1;
+        c_ui->cursed_at = uwsgi_now();
+
+        uwsgi_log("[emperor] curse the uwsgi instance %s (pid: %d)\n", c_ui->name, (int) c_ui->pid);
+
+}
+
+
 void emperor_respawn(struct uwsgi_instance *c_ui, time_t mod) {
 
 	struct uwsgi_header uh;
 
 	// reload the uWSGI instance
 	if (write(c_ui->pipe[0], "\1", 1) != 1) {
-		uwsgi_error("write()");
+		uwsgi_error("emperor_respawn/write()");
 	}
 
 	// push the config to the config pipe (if needed)
@@ -748,15 +809,10 @@ void emperor_add(struct uwsgi_emperor_scanner *ues, char *name, time_t born, cha
 	}
 }
 
+static void uwsgi_emperor_spawn_vassal(struct uwsgi_instance *);
 
 int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 
-	int i;
-	char *colon = NULL;
-	int counter;
-	char **uenvs;
-	char *uef;
-	char **vassal_argv;
 	pid_t pid;
 
 	if (socketpair(AF_UNIX, SOCK_STREAM, 0, n_ui->pipe)) {
@@ -780,9 +836,19 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 	// TODO pre-start hook
 
 	// a new uWSGI instance will start 
+#if defined(__linux__) && !defined(OBSOLETE_LINUX_KERNEL) && !defined(__ia64__)
+	if (uwsgi.emperor_clone) {
+		char stack[PTHREAD_STACK_MIN];
+		pid = clone((int (*)(void *))uwsgi_emperor_spawn_vassal, stack + PTHREAD_STACK_MIN, SIGCHLD | uwsgi.emperor_clone, (void *) n_ui);
+	}
+	else {
+#endif
 	pid = fork();
+#if defined(__linux__) && !defined(OBSOLETE_LINUX_KERNEL) && !defined(__ia64__)
+	}
+#endif
 	if (pid < 0) {
-		uwsgi_error("fork()")
+		uwsgi_error("uwsgi_emperor_spawn_vassal()/fork()")
 	}
 	else if (pid > 0) {
 		n_ui->pid = pid;
@@ -812,9 +878,141 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
                 	}
 
 		}
+
+		// once the config is sent we can run hooks (they can fail)
+		// exec hooks have access to all of the currently defined vars + UWSGI_VASSAL_PID, UWSGI_VASSAL_UID, UWSGI_VASSAL_GID, UWSGI_VASSAL_CONFIG
+		uwsgi_hooks_run(uwsgi.hook_as_emperor, "as-emperor", 0);
+		struct uwsgi_string_list *usl;
+		uwsgi_foreach(usl, uwsgi.mount_as_emperor) {
+                                uwsgi_log("mounting \"%s\" (as-emperor for vassal \"%s\" pid: %d uid: %d gid: %d)...\n", usl->value, n_ui->name, n_ui->pid, n_ui->uid, n_ui->gid);
+                                if (uwsgi_mount_hook(usl->value)) {
+                                        exit(1);
+                                }
+                        }
+
+                        uwsgi_foreach(usl, uwsgi.umount_as_emperor) {
+                                uwsgi_log("un-mounting \"%s\" (as-emperor for vassal \"%s\" pid: %d uid: %d gid: %d)...\n", usl->value, n_ui->name, n_ui->pid, n_ui->uid, n_ui->gid);
+                                if (uwsgi_umount_hook(usl->value)) {
+                                        exit(1);
+                                }
+                        }
+		uwsgi_foreach(usl, uwsgi.exec_as_emperor) {
+			uwsgi_log("running \"%s\" (as-emperor for vassal \"%s\" pid: %d uid: %d gid: %d)...\n", usl->value, n_ui->name, n_ui->pid, n_ui->uid, n_ui->gid);
+			char *argv[4];
+			argv[0] = uwsgi_concat2("UWSGI_VASSAL_CONFIG=", n_ui->name);
+			char argv_pid[17+11]; snprintf(argv_pid, 17 + 11, "UWSGI_VASSAL_PID=%d", (int) n_ui->pid); argv[1] = argv_pid;
+			char argv_uid[17+11]; snprintf(argv_uid, 17 + 11, "UWSGI_VASSAL_UID=%d", (int) n_ui->uid); argv[2] = argv_uid;
+			char argv_gid[17+11]; snprintf(argv_gid, 17 + 11, "UWSGI_VASSAL_GID=%d", (int) n_ui->gid); argv[3] = argv_gid;
+                        int ret = uwsgi_run_command_putenv_and_wait(NULL, usl->value, argv, 4);
+                        uwsgi_log("command \"%s\" exited with code: %d\n", usl->value, ret);
+			free(argv[0]);
+		}
+		// 4 call hooks
+		// config / config + pid / config + pid + uid + gid
+		// call
+		uwsgi_foreach(usl, uwsgi.call_as_emperor) {
+			void (*func)(void) = dlsym(RTLD_DEFAULT, usl->value);
+			if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+                        }
+			else {
+				func();
+			}
+                }
+
+		uwsgi_foreach(usl, uwsgi.call_as_emperor1) {
+                        void (*func)(char *) = dlsym(RTLD_DEFAULT, usl->value);
+                        if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+                        }
+                        else {
+                                func(n_ui->name);
+                        }
+                }
+
+		uwsgi_foreach(usl, uwsgi.call_as_emperor2) {
+                        void (*func)(char *, pid_t) = dlsym(RTLD_DEFAULT, usl->value);
+                        if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+                        }
+                        else {
+                                func(n_ui->name, n_ui->pid);
+                        }
+                }
+
+		uwsgi_foreach(usl, uwsgi.call_as_emperor4) {
+                        void (*func)(char *, pid_t, uid_t, gid_t) = dlsym(RTLD_DEFAULT, usl->value);
+                        if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+                        }
+                        else {
+                                func(n_ui->name, n_ui->pid, n_ui->uid, n_ui->gid);
+                        }
+                }
 		return 0;
 	}
 	else {
+		uwsgi_emperor_spawn_vassal(n_ui);
+	}
+	return -1;
+}
+
+static void uwsgi_emperor_spawn_vassal(struct uwsgi_instance *n_ui) {
+
+
+#ifdef __linux__
+        if (prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0)) {
+                uwsgi_error("prctl()");
+        }
+#ifdef CLONE_NEWUSER
+	if (uwsgi.emperor_clone & CLONE_NEWUSER) {
+		if (setuid(0)) {
+			uwsgi_error("uwsgi_emperor_spawn_vassal()/setuid(0)");
+			exit(1);
+		}
+	}
+#endif
+
+#ifdef UWSGI_CAP
+#if defined(CAP_LAST_CAP) && defined(PR_CAPBSET_READ) && defined(PR_CAPBSET_DROP)
+        if (uwsgi.emperor_cap && uwsgi.emperor_cap_count > 0) {
+		int i;
+		for(i=0;i<=CAP_LAST_CAP;i++) {
+			
+			int has_cap = prctl(PR_CAPBSET_READ, i, 0, 0, 0);
+			if (has_cap == 1) {
+				if (i == CAP_SETPCAP) continue;
+				int j;int found = 0;
+				for(j=0;j<uwsgi.emperor_cap_count;j++) {
+					if (uwsgi.emperor_cap[j] == (int) i) {
+						found = 1; break;
+					}
+				}
+				if (found) continue;
+				if (prctl(PR_CAPBSET_DROP, i, 0, 0, 0)) {
+					uwsgi_error("uwsgi_emperor_spawn_vassal()/prctl()");
+					uwsgi_log_verbose("unable to drop capability %lu\n", i);
+					exit(1);
+				}
+			}
+		}
+		// just for being paranoid
+#ifdef SECBIT_KEEP_CAPS
+                if (prctl(SECBIT_KEEP_CAPS, 1, 0, 0, 0) < 0) {
+                        uwsgi_error("prctl()");
+                        exit(1);
+                }
+#else
+                if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) < 0) {
+                        uwsgi_error("prctl()");
+                        exit(1);
+                }
+#endif
+		uwsgi_log("capabilities applied for vassal %s (pid: %d)\n", n_ui->name, (int) getpid());
+        }
+#endif
+#endif
+#endif
 
 		if (uwsgi.emperor_tyrant) {
 			uwsgi_log("[emperor-tyrant] dropping privileges to %d %d for instance %s\n", (int) n_ui->uid, (int) n_ui->gid, n_ui->name);
@@ -837,7 +1035,7 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 		unsetenv("UWSGI_RELOADS");
 		unsetenv("NOTIFY_SOCKET");
 
-		uef = uwsgi_num2str(n_ui->pipe[1]);
+		char *uef = uwsgi_num2str(n_ui->pipe[1]);
 		if (setenv("UWSGI_EMPEROR_FD", uef, 1)) {
 			uwsgi_error("setenv()");
 			exit(1);
@@ -863,15 +1061,19 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 			free(uef);
 		}
 
-		uenvs = environ;
+		char **uenvs = environ;
 		while (*uenvs) {
 			if (!strncmp(*uenvs, "UWSGI_VASSAL_", 13) && strchr(*uenvs, '=')) {
 				char *oe = uwsgi_concat2n(*uenvs, strchr(*uenvs, '=') - *uenvs, "", 0), *ne;
+#ifdef UNSETENV_VOID
+				unsetenv(oe);
+#else
 				if (unsetenv(oe)) {
 					uwsgi_error("unsetenv()");
 					free(oe);
 					break;
 				}
+#endif
 				free(oe);
 
 				ne = uwsgi_concat2("UWSGI_", *uenvs + 13);
@@ -896,17 +1098,40 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 			close(n_ui->pipe_config[0]);
 		}
 
-		counter = 4;
-		struct uwsgi_string_list *uct = uwsgi.vassals_templates;
-		while (uct) {
+		int counter = 4;
+		struct uwsgi_string_list *uct;
+		uwsgi_foreach(uct, uwsgi.vassals_templates_before) counter += 2;
+		uwsgi_foreach(uct, uwsgi.vassals_includes_before) counter += 2;
+		uwsgi_foreach(uct, uwsgi.vassals_set) counter += 2;
+		uwsgi_foreach(uct, uwsgi.vassals_templates) counter += 2;
+		uwsgi_foreach(uct, uwsgi.vassals_includes) counter += 2;
+
+		char **vassal_argv = uwsgi_malloc(sizeof(char *) * counter);
+		// set args
+		vassal_argv[0] = uwsgi.emperor_wrapper ? uwsgi.emperor_wrapper: uwsgi.binary_path;
+
+		// reset counter
+		counter = 1;
+
+		uwsgi_foreach(uct, uwsgi.vassals_templates_before) {
+			vassal_argv[counter] = "--inherit";
+			vassal_argv[counter + 1] = uct->value;
 			counter += 2;
-			uct = uct->next;
 		}
 
-		vassal_argv = uwsgi_malloc(sizeof(char *) * counter);
-		// set args
-		vassal_argv[0] = uwsgi.binary_path;
+                uwsgi_foreach (uct,  uwsgi.vassals_includes_before) {
+                        vassal_argv[counter] = "--include";
+                        vassal_argv[counter + 1] = uct->value;
+                        counter += 2;
+                }
 
+		uwsgi_foreach (uct,  uwsgi.vassals_set) {
+                        vassal_argv[counter] = "--set";
+                        vassal_argv[counter + 1] = uct->value;
+                        counter += 2;
+                }
+
+		char *colon = NULL;
 		if (uwsgi.emperor_broodlord) {
 			colon = strchr(n_ui->name, ':');
 			if (colon) {
@@ -914,55 +1139,60 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 			}
 		}
 		// initialize to a default value
-		vassal_argv[1] = "--inherit";
+		vassal_argv[counter] = "--inherit";
 
 		if (!strcmp(n_ui->name + (strlen(n_ui->name) - 4), ".xml"))
-			vassal_argv[1] = "--xml";
+			vassal_argv[counter] = "--xml";
 		if (!strcmp(n_ui->name + (strlen(n_ui->name) - 4), ".ini"))
-			vassal_argv[1] = "--ini";
+			vassal_argv[counter] = "--ini";
 		if (!strcmp(n_ui->name + (strlen(n_ui->name) - 4), ".yml"))
-			vassal_argv[1] = "--yaml";
+			vassal_argv[counter] = "--yaml";
 		if (!strcmp(n_ui->name + (strlen(n_ui->name) - 5), ".yaml"))
-			vassal_argv[1] = "--yaml";
+			vassal_argv[counter] = "--yaml";
 		if (!strcmp(n_ui->name + (strlen(n_ui->name) - 3), ".js"))
-			vassal_argv[1] = "--json";
+			vassal_argv[counter] = "--json";
 		if (!strcmp(n_ui->name + (strlen(n_ui->name) - 5), ".json"))
-			vassal_argv[1] = "--json";
-	
+			vassal_argv[counter] = "--json";
 		struct uwsgi_string_list *usl = uwsgi.emperor_extra_extension;
 		while(usl) {
 			if (uwsgi_endswith(n_ui->name, usl->value)) {
-				vassal_argv[1] = "--config";
+				vassal_argv[counter] = "--config";
 				break;
 			}
 			usl = usl->next;
 		}
+		if (colon) colon[0] = ':';
 
-		if (colon) {
-			colon[0] = ':';
-		}
+		// start config filename...
+		counter++;
 
-
-		vassal_argv[2] = n_ui->name;
+		vassal_argv[counter] = n_ui->name;
 		if (uwsgi.emperor_magic_exec) {
 			if (!access(n_ui->name, R_OK | X_OK)) {
-				vassal_argv[2] = uwsgi_concat2("exec://", n_ui->name);
+				vassal_argv[counter] = uwsgi_concat2("exec://", n_ui->name);
 			}
 
 		}
 
 		if (n_ui->use_config) {
-			vassal_argv[2] = uwsgi_concat2("emperor://", n_ui->name);
+			vassal_argv[counter] = uwsgi_concat2("emperor://", n_ui->name);
 		}
 
-		counter = 3;
-		uct = uwsgi.vassals_templates;
-		while (uct) {
+		// start templates,includes,inherit...
+		counter++;
+
+		uwsgi_foreach(uct, uwsgi.vassals_templates) {
 			vassal_argv[counter] = "--inherit";
 			vassal_argv[counter + 1] = uct->value;
 			counter += 2;
-			uct = uct->next;
 		}
+
+                uwsgi_foreach (uct,  uwsgi.vassals_includes) {
+                        vassal_argv[counter] = "--include";
+                        vassal_argv[counter + 1] = uct->value;
+                        counter += 2;
+                }
+
 		vassal_argv[counter] = NULL;
 
 		// disable stdin OR map it to the "on demand" socket
@@ -976,22 +1206,13 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 			}
 		}
 		else {
-			int stdin_fd = open("/dev/null", O_RDONLY);
-			if (stdin_fd < 0) {
-				uwsgi_error_open("/dev/null");
-				exit(1);
-			}
-			if (stdin_fd != 0) {
-				if (dup2(stdin_fd, 0) < 0) {
-					uwsgi_error("dup2()");
-					exit(1);
-				}
-				close(stdin_fd);
-			}
+			uwsgi_remap_fd(0, "/dev/null");
 		}
 
 		// close all of the unneded fd
+		int i;
 		for (i = 3; i < (int) uwsgi.max_fd; i++) {
+			if (uwsgi_fd_is_safe(i)) continue;
 			if (n_ui->use_config) {
 				if (i == n_ui->pipe_config[1])
 					continue;
@@ -1001,6 +1222,7 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 			}
 		}
 
+		// run start hook (can fail)
 		if (uwsgi.vassals_start_hook) {
 			uwsgi_log("[emperor] running vassal start-hook: %s %s\n", uwsgi.vassals_start_hook, n_ui->name);
 			if (uwsgi.emperor_absolute_dir) {
@@ -1012,6 +1234,60 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 			uwsgi_log("[emperor] %s start-hook returned %d\n", n_ui->name, start_hook_ret);
 		}
 
+		uwsgi_hooks_run(uwsgi.hook_as_vassal, "as-vassal", 1);
+
+		uwsgi_foreach(usl, uwsgi.mount_as_vassal) {
+                                uwsgi_log("mounting \"%s\" (as-vassal)...\n", usl->value);
+                                if (uwsgi_mount_hook(usl->value)) {
+                                        exit(1);
+                                }
+                        }
+
+                        uwsgi_foreach(usl, uwsgi.umount_as_vassal) {
+                                uwsgi_log("un-mounting \"%s\" (as-vassal)...\n", usl->value);
+                                if (uwsgi_umount_hook(usl->value)) {
+                                        exit(1);
+                                }
+                        }
+
+		// run exec hooks (cannot fail)
+		uwsgi_foreach(usl, uwsgi.exec_as_vassal) {
+                        uwsgi_log("running \"%s\" (as-vassal)...\n", usl->value);
+                        int ret = uwsgi_run_command_and_wait(NULL, usl->value);
+                        if (ret != 0) {
+                                uwsgi_log("command \"%s\" exited with non-zero code: %d\n", usl->value, ret);
+                                exit(1);
+                        }
+                }
+	
+		// run low-level hooks
+		uwsgi_foreach(usl, uwsgi.call_as_vassal) {
+			void (*func)(void) = dlsym(RTLD_DEFAULT, usl->value);
+			if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+				exit(1);
+                        }
+			func();
+                }
+
+		uwsgi_foreach(usl, uwsgi.call_as_vassal1) {
+                        void (*func)(char *) = dlsym(RTLD_DEFAULT, usl->value);
+                        if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+                                exit(1);
+                        }
+                        func(n_ui->name);
+                }
+
+		uwsgi_foreach(usl, uwsgi.call_as_vassal3) {
+                        void (*func)(char *, uid_t, gid_t) = dlsym(RTLD_DEFAULT, usl->value);
+                        if (!func) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+                                exit(1);
+                        }
+                        func(n_ui->name, n_ui->uid, n_ui->gid);
+                }
+
 		// start !!!
 		if (execvp(vassal_argv[0], vassal_argv)) {
 			uwsgi_error("execvp()");
@@ -1019,9 +1295,6 @@ int uwsgi_emperor_vassal_start(struct uwsgi_instance *n_ui) {
 		uwsgi_log("[emperor] is the uwsgi binary in your system PATH ?\n");
 		// never here
 		exit(UWSGI_EXILE_CODE);
-	}
-
-	return -1;
 }
 
 void uwsgi_imperial_monitor_glob_init(struct uwsgi_emperor_scanner *ues) {
@@ -1272,7 +1545,8 @@ void emperor_loop() {
 				ssize_t rlen = read(interesting_fd, &byte, 1);
 				if (rlen <= 0) {
 					// SAFE
-					emperor_del(ui_current);
+					event_queue_del_fd(uwsgi.emperor_queue, interesting_fd, event_queue_read());
+					emperor_curse(ui_current);
 				}
 				else {
 					if (byte == 17) {
@@ -1322,10 +1596,14 @@ void emperor_loop() {
 		while (ui_current) {
 			if (ui_current->last_heartbeat > 0) {
 				if ((ui_current->last_heartbeat + uwsgi.emperor_heartbeat) < uwsgi_now()) {
-					uwsgi_log("[emperor] vassal %s sent no heartbeat in last %d seconds, respawning it...\n", ui_current->name, uwsgi.emperor_heartbeat);
+					uwsgi_log("[emperor] vassal %s sent no heartbeat in last %d seconds, brutally respawning it...\n", ui_current->name, uwsgi.emperor_heartbeat);
 					// set last_heartbeat to 0 avoiding races
 					ui_current->last_heartbeat = 0;
-					emperor_respawn(ui_current, uwsgi_now());
+					if (ui_current->pid > 0) {
+						if (kill(ui_current->pid, SIGKILL)) {
+							uwsgi_error("[emperor] kill()");
+						}
+					}
 				}
 			}
 			ui_current = ui_current->ui_next;
@@ -1374,14 +1652,8 @@ void emperor_loop() {
 		ui_current = ui;
 		while (ui_current->ui_next) {
 			ui_current = ui_current->ui_next;
-			if (ui_current->status == 1) {
-				if (ui_current->config)
-					free(ui_current->config);
-				// SAFE
-				emperor_del(ui_current);
-				break;
-			}
-			else if (ui_current->pid == diedpid) {
+			time_t now = uwsgi_now();
+			if (ui_current->pid == diedpid) {
 				if (ui_current->status == 0) {
 					// respawn an accidentally dead instance if its exit code is not UWSGI_EXILE_CODE
 					if (WIFEXITED(waitpid_status) && WEXITSTATUS(waitpid_status) == UWSGI_EXILE_CODE) {
@@ -1404,6 +1676,13 @@ void emperor_loop() {
 					break;
 				}
 			}
+			else if (ui_current->cursed_at > 0 && now - ui_current->cursed_at >= uwsgi.emperor_curse_tolerance) {
+				ui_current->cursed_at = now;
+				if (kill(ui_current->pid, SIGKILL)) {
+					uwsgi_error("[emperor] kill");
+				}
+				break;
+			}
 		}
 
 
@@ -1500,6 +1779,8 @@ void emperor_send_stats(int fd) {
 			goto end0;
 		if (uwsgi_stats_keylong_comma(us, "last_run", (unsigned long long) c_ui->last_run))
 			goto end0;
+		if (uwsgi_stats_keylong_comma(us, "cursed", (unsigned long long) c_ui->cursed_at))
+			goto end0;
 		if (uwsgi_stats_keylong_comma(us, "zerg", (unsigned long long) c_ui->zerg))
 			goto end0;
 
@@ -1643,6 +1924,46 @@ void uwsgi_emperor_start() {
 }
 
 void uwsgi_check_emperor() {
+	char *emperor_fd_pass = getenv("UWSGI_EMPEROR_PROXY");
+	if (emperor_fd_pass) {
+		for(;;) {
+			int proxy_fd = uwsgi_connect(emperor_fd_pass, 30, 0);
+			if (proxy_fd < 0) {
+				uwsgi_error("uwsgi_check_emperor()/uwsgi_connect()");
+				sleep(1);
+				continue;
+			}
+			int count = 2;
+			int *fds = uwsgi_attach_fd(proxy_fd, &count, "uwsgi-emperor", 13);
+			if (fds && count > 0) {
+				char *env_emperor_fd = uwsgi_num2str(fds[0]);
+				if (setenv("UWSGI_EMPEROR_FD", env_emperor_fd, 1)) {
+					uwsgi_error("uwsgi_check_emperor()/setenv(UWSGI_EMPEROR_FD)");
+					free(env_emperor_fd);
+					int i; for(i=0;i<count;i++) close(fds[i]);
+					goto next;	
+				}
+				free(env_emperor_fd);
+				if (count > 1) {
+					char *env_emperor_fd_config = uwsgi_num2str(fds[1]);
+					if (setenv("UWSGI_EMPEROR_FD_CONFIG", env_emperor_fd_config, 1)) {
+						uwsgi_error("uwsgi_check_emperor()/setenv(UWSGI_EMPEROR_FD_CONFIG)");
+						free(env_emperor_fd_config);
+						int i; for(i=0;i<count;i++) close(fds[i]);
+						goto next;	
+					}
+					free(env_emperor_fd_config);
+				}
+				break;
+			}
+next:
+			if (fds) free(fds);
+			close(proxy_fd);
+			sleep(1);
+		}
+		unsetenv("UWSGI_EMPEROR_PROXY");
+	}
+
 	char *emperor_env = getenv("UWSGI_EMPEROR_FD");
 	if (emperor_env) {
 		uwsgi.has_emperor = 1;
@@ -1698,3 +2019,89 @@ void uwsgi_emperor_simple_do(struct uwsgi_emperor_scanner *ues, char *name, char
 		emperor_add(ues, name, ts, new_config, new_config_len, uid, gid, socket_name);
 	}
 }
+
+void uwsgi_master_manage_emperor() {
+        char byte;
+        ssize_t rlen = read(uwsgi.emperor_fd, &byte, 1);
+        if (rlen > 0) {
+                uwsgi_log_verbose("received message %d from emperor\n", byte);
+                // remove me
+                if (byte == 0) {
+                        close(uwsgi.emperor_fd);
+                        if (!uwsgi.status.brutally_reloading)
+                                kill_them_all(0);
+                }
+                // reload me
+                else if (byte == 1) {
+                        // un-lazy the stack to trigger a real reload
+                        uwsgi.lazy = 0;
+                        uwsgi_block_signal(SIGHUP);
+                        grace_them_all(0);
+                        uwsgi_unblock_signal(SIGHUP);
+                }
+        }
+        else {
+                uwsgi_log("lost connection with my emperor !!!\n");
+                close(uwsgi.emperor_fd);
+                if (!uwsgi.status.brutally_reloading)
+                        kill_them_all(0);
+                sleep(2);
+                exit(1);
+        }
+
+}
+
+void uwsgi_master_manage_emperor_proxy() {
+
+	struct sockaddr_un epsun;
+        socklen_t epsun_len = sizeof(struct sockaddr_un);
+
+        int ep_client = accept(uwsgi.emperor_fd_proxy, (struct sockaddr *) &epsun, &epsun_len);
+        if (ep_client < 0) {
+                uwsgi_error("uwsgi_master_manage_emperor_proxy()/accept()");
+                return;
+        }
+
+	int num_fds = 1;
+	if (uwsgi.emperor_fd_config > -1) num_fds++;
+
+        struct msghdr ep_msg;
+        void *ep_msg_control = uwsgi_malloc(CMSG_SPACE(sizeof(int) * num_fds));
+        struct iovec ep_iov[2];
+        struct cmsghdr *cmsg;
+
+        ep_iov[0].iov_base = "uwsgi-emperor";
+        ep_iov[0].iov_len = 13;
+        ep_iov[1].iov_base = &num_fds;
+        ep_iov[1].iov_len = sizeof(int);
+
+        ep_msg.msg_name = NULL;
+        ep_msg.msg_namelen = 0;
+
+        ep_msg.msg_iov = ep_iov;
+        ep_msg.msg_iovlen = 2;
+
+        ep_msg.msg_flags = 0;
+        ep_msg.msg_control = ep_msg_control;
+        ep_msg.msg_controllen = CMSG_SPACE(sizeof(int) * num_fds);
+
+        cmsg = CMSG_FIRSTHDR(&ep_msg);
+        cmsg->cmsg_len = CMSG_LEN(sizeof(int) * num_fds);
+        cmsg->cmsg_level = SOL_SOCKET;
+        cmsg->cmsg_type = SCM_RIGHTS;
+
+        unsigned char *ep_fd_ptr = CMSG_DATA(cmsg);
+
+        memcpy(ep_fd_ptr, &uwsgi.emperor_fd, sizeof(int));
+	if (num_fds > 1) {
+        	memcpy(ep_fd_ptr + sizeof(int), &uwsgi.emperor_fd_config, sizeof(int));
+	}
+
+        if (sendmsg(ep_client, &ep_msg, 0) < 0) {
+                uwsgi_error("uwsgi_master_manage_emperor_proxy()/sendmsg()");
+        }
+
+        free(ep_msg_control);
+
+        close(ep_client);
+}

core/fifo.c

@@ -0,0 +1,122 @@
+#include <uwsgi.h>
+
+extern struct uwsgi_server uwsgi;
+
+/*
+
+	the --master-fifo option create a unix named pipe (fifo) you can use to send management
+	commands to the master:
+
+	echo r > myfifo
+
+*/
+
+// this var can be accessed by plugins and hooks
+void (*uwsgi_fifo_table[256])(int);
+
+static char *uwsgi_fifo_by_slot() {
+	int count = 0;
+	struct uwsgi_string_list *usl;
+	uwsgi_foreach(usl, uwsgi.master_fifo) {
+		if (count == uwsgi.master_fifo_slot) return usl->value;
+		count++;
+	}
+	return uwsgi.master_fifo->value;
+}
+
+static void uwsgi_fifo_set_slot_zero() { uwsgi.master_fifo_slot = 0; }
+static void uwsgi_fifo_set_slot_one() { uwsgi.master_fifo_slot = 1; }
+static void uwsgi_fifo_set_slot_two() { uwsgi.master_fifo_slot = 2; }
+static void uwsgi_fifo_set_slot_three() { uwsgi.master_fifo_slot = 3; }
+static void uwsgi_fifo_set_slot_four() { uwsgi.master_fifo_slot = 4; }
+static void uwsgi_fifo_set_slot_five() { uwsgi.master_fifo_slot = 5; }
+static void uwsgi_fifo_set_slot_six() { uwsgi.master_fifo_slot = 6; }
+static void uwsgi_fifo_set_slot_seven() { uwsgi.master_fifo_slot = 7; }
+static void uwsgi_fifo_set_slot_eight() { uwsgi.master_fifo_slot = 8; }
+static void uwsgi_fifo_set_slot_nine() { uwsgi.master_fifo_slot = 9; }
+
+/*
+
+this is called as soon as possibile allowing plugins (or hooks) to override it
+
+*/
+void uwsgi_master_fifo_prepare() {
+	int i;
+	for(i=0;i<256;i++) {
+		uwsgi_fifo_table[i] = NULL;
+	}
+
+	uwsgi_fifo_table['0'] = uwsgi_fifo_set_slot_zero;
+	uwsgi_fifo_table['1'] = uwsgi_fifo_set_slot_one;
+	uwsgi_fifo_table['2'] = uwsgi_fifo_set_slot_two;
+	uwsgi_fifo_table['3'] = uwsgi_fifo_set_slot_three;
+	uwsgi_fifo_table['4'] = uwsgi_fifo_set_slot_four;
+	uwsgi_fifo_table['5'] = uwsgi_fifo_set_slot_five;
+	uwsgi_fifo_table['6'] = uwsgi_fifo_set_slot_six;
+	uwsgi_fifo_table['7'] = uwsgi_fifo_set_slot_seven;
+	uwsgi_fifo_table['8'] = uwsgi_fifo_set_slot_eight;
+	uwsgi_fifo_table['9'] = uwsgi_fifo_set_slot_nine;
+
+	uwsgi_fifo_table['-'] = uwsgi_cheaper_decrease;
+	uwsgi_fifo_table['+'] = uwsgi_cheaper_increase;
+	uwsgi_fifo_table['c'] = uwsgi_chain_reload;
+	uwsgi_fifo_table['C'] = uwsgi_go_cheap;
+	uwsgi_fifo_table['f'] = uwsgi_refork_master;
+	uwsgi_fifo_table['l'] = uwsgi_log_reopen;
+	uwsgi_fifo_table['L'] = uwsgi_log_rotate;
+	uwsgi_fifo_table['p'] = suspend_resume_them_all;
+	uwsgi_fifo_table['P'] = uwsgi_update_pidfiles;
+	uwsgi_fifo_table['q'] = gracefully_kill_them_all;
+	uwsgi_fifo_table['Q'] = kill_them_all;
+	uwsgi_fifo_table['r'] = grace_them_all;
+	uwsgi_fifo_table['R'] = reap_them_all;
+	uwsgi_fifo_table['s'] = stats;
+	uwsgi_fifo_table['w'] = uwsgi_reload_workers;
+	uwsgi_fifo_table['W'] = uwsgi_brutally_reload_workers;
+
+}
+
+int uwsgi_master_fifo() {
+
+	char *path = uwsgi_fifo_by_slot();
+
+	unlink(path);
+
+	if (mkfifo(path, S_IRUSR|S_IWUSR)) {
+		uwsgi_error("uwsgi_master_fifo()/mkfifo()");
+		exit(1);
+	}
+
+	int fd = open(path, O_RDONLY|O_NONBLOCK);
+	if (fd < 0) {
+		uwsgi_error("uwsgi_master_fifo()/open()");
+		exit(1);
+	}
+
+	uwsgi_socket_nb(fd);
+
+	return fd;
+}
+
+int uwsgi_master_fifo_manage(int fd) {
+	unsigned char cmd;
+	ssize_t rlen = read(fd, &cmd, 1);
+	if (rlen < 0) {
+		if (uwsgi_is_again()) return 0;
+		uwsgi_error("uwsgi_master_fifo_manage()/read()");
+		exit(1);
+	}
+	// fifo destroyed, recreate it
+	else if (rlen == 0) {
+		close(fd);
+		uwsgi.master_fifo_fd = uwsgi_master_fifo();
+		event_queue_add_fd_read(uwsgi.master_queue, uwsgi.master_fifo_fd);
+		return 0;
+	}
+
+	if (uwsgi_fifo_table[(int) cmd]) {
+		uwsgi_fifo_table[(int) cmd](0);
+	}
+	
+	return 0;
+}

core/fsmon.c

@@ -0,0 +1,214 @@
+#include <uwsgi.h>
+
+extern struct uwsgi_server uwsgi;
+
+#ifdef UWSGI_EVENT_FILEMONITOR_USE_INOTIFY
+#ifndef OBSOLETE_LINUX_KERNEL
+#include <sys/inotify.h>
+#endif
+#endif
+
+
+void uwsgi_fsmon_setup() {
+	struct uwsgi_string_list *usl = uwsgi.fs_reload;
+        while(usl) {
+                if (uwsgi_register_fsmon(usl)) {
+                        uwsgi_log("[uwsgi-fsmon] unable to register monitor for \"%s\"\n", usl->value);
+                }
+                else {
+                        uwsgi_log("[uwsgi-fsmon] registered monitor for \"%s\"\n", usl->value);
+                }
+                usl = usl->next;
+        }
+
+	usl = uwsgi.fs_brutal_reload;
+        while(usl) {
+                if (uwsgi_register_fsmon(usl)) {
+                        uwsgi_log("[uwsgi-fsmon] unable to register monitor for \"%s\"\n", usl->value);
+                }
+                else {
+                        uwsgi_log("[uwsgi-fsmon] registered monitor for \"%s\"\n", usl->value);
+                }
+                usl = usl->next;
+        }
+
+	usl = uwsgi.fs_signal;
+        while(usl) {
+		char *copy = uwsgi_str(usl->value);
+		char *space = strchr(copy, ' ');
+		if (!space) {
+			uwsgi_log("[uwsgi-fsmon] invalid syntax: \"%s\"\n", usl->value);
+			free(copy);
+			goto next;			
+		}
+		*space = 0;
+		usl->value = copy;
+		usl->len = strlen(copy);
+		usl->custom_ptr = space+1;	
+                if (uwsgi_register_fsmon(usl)) {
+                        uwsgi_log("[uwsgi-fsmon] unable to register monitor for \"%s\"\n", usl->value);
+                }
+                else {
+                        uwsgi_log("[uwsgi-fsmon] registered monitor for \"%s\"\n", usl->value);
+                }
+next:
+                usl = usl->next;
+        }
+}
+
+
+int uwsgi_register_fsmon(struct uwsgi_string_list *usl) {
+#ifdef UWSGI_EVENT_FILEMONITOR_USE_INOTIFY
+#ifndef OBSOLETE_LINUX_KERNEL
+	static int inotify_fd = -1;
+	if (inotify_fd == -1) {
+		inotify_fd = inotify_init();
+		if (inotify_fd < 0) {
+			uwsgi_error("uwsgi_register_fsmon()/inotify_init()");
+			return -1;
+		}
+		if (event_queue_add_fd_read(uwsgi.master_queue, inotify_fd)) {
+			uwsgi_error("uwsgi_register_fsmon()/event_queue_add_fd_read()");
+			return -1;
+		}
+	}
+	int wd = inotify_add_watch(inotify_fd, usl->value, IN_ATTRIB | IN_CREATE | IN_DELETE | IN_DELETE_SELF | IN_MODIFY | IN_MOVE_SELF | IN_MOVED_FROM | IN_MOVED_TO);
+	if (wd < 0) {
+		uwsgi_error("uwsgi_register_fsmon()/inotify_add_watch()");
+		return -1;
+	}
+	usl->custom = inotify_fd;
+	usl->custom2 = wd;
+	return 0;
+#endif
+#endif
+#ifdef UWSGI_EVENT_FILEMONITOR_USE_KQUEUE
+        struct kevent kev;
+        int fd = open(usl->value, O_RDONLY);
+        if (fd < 0) {
+                uwsgi_error_open(usl->value);
+		uwsgi_error("uwsgi_register_fsmon()/open()");	
+                return -1;
+        }
+
+        EV_SET(&kev, fd, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE | NOTE_DELETE | NOTE_EXTEND | NOTE_ATTRIB | NOTE_RENAME | NOTE_REVOKE, 0, 0);
+        if (kevent(uwsgi.master_queue, &kev, 1, NULL, 0, NULL) < 0) {
+                uwsgi_error("uwsgi_register_fsmon()/kevent()");
+                return -1;
+        }
+	usl->custom = fd;
+	usl->custom2 = fd;
+	return 0;
+#endif
+
+	uwsgi_log("[uwsgi-fsmon] filesystem monitoring interface not available in this platform !!!\n");
+	return 1;
+}
+
+static struct uwsgi_string_list *uwsgi_fsmon_ack(int interesting_fd) {
+	int found_fd = -1;
+	struct uwsgi_string_list *usl = uwsgi.fs_reload;
+	while(usl) {
+		if ((int)usl->custom == interesting_fd) {
+			found_fd = usl->custom;
+			goto found;
+		}
+		usl = usl->next;
+	}
+	usl = uwsgi.fs_brutal_reload;
+	while(usl) {
+                if ((int)usl->custom == interesting_fd) {
+                        found_fd = usl->custom;
+                        goto found;
+                }
+                usl = usl->next;
+        }
+	usl = uwsgi.fs_signal;
+        while(usl) {
+                if ((int)usl->custom == interesting_fd) {
+                        found_fd = usl->custom;
+                        goto found;
+                }
+                usl = usl->next;
+        }
+found:
+	if (found_fd == -1) return NULL;
+#ifdef UWSGI_EVENT_FILEMONITOR_USE_INOTIFY
+#ifndef OBSOLETE_LINUX_KERNEL
+	unsigned int isize = 0;
+	if (ioctl(found_fd, FIONREAD, &isize) < 0) {
+                uwsgi_error("uwsgi_fsmon_ack()/ioctl()");
+                return 0;
+        }
+	if (isize == 0) return NULL;
+	struct inotify_event *ie = uwsgi_malloc(isize);
+	// read from the inotify descriptor
+	ssize_t len = read(found_fd, ie, isize);
+	if (len < 0) { free(ie); uwsgi_error("uwsgi_fsmon_ack()/read()"); return NULL;}
+	found_fd = ie->wd;
+	free(ie);
+#endif
+#endif
+	// search for the item id and print it
+	usl = uwsgi.fs_reload;	
+        while(usl) {
+                if ((int)usl->custom2 == found_fd) {
+                        uwsgi_log("[uwsgi-fsmon] \"%s\" has been modified\n", usl->value);
+                        return uwsgi.fs_reload;
+                }
+                usl = usl->next;
+        }
+
+	usl = uwsgi.fs_brutal_reload;
+        while(usl) {
+                if ((int)usl->custom2 == found_fd) {
+                        uwsgi_log("[uwsgi-fsmon] \"%s\" has been modified\n", usl->value);
+                        return uwsgi.fs_brutal_reload;
+                } 
+                usl = usl->next;
+        }
+
+	usl = uwsgi.fs_signal;
+        while(usl) {
+                if ((int)usl->custom2 == found_fd) {
+                        uwsgi_log("[uwsgi-fsmon] \"%s\" has been modified\n", usl->value);
+                        return usl;
+                } 
+                usl = usl->next;
+        }
+
+	return NULL;
+}
+
+int uwsgi_fsmon_event(int interesting_fd) {
+
+	struct uwsgi_string_list *usl = uwsgi_fsmon_ack(interesting_fd);
+
+	if (!usl) return 0;
+
+	if (usl == uwsgi.fs_reload) {
+		uwsgi_block_signal(SIGHUP);
+                grace_them_all(0);
+                uwsgi_unblock_signal(SIGHUP);
+                return 1;
+        }
+
+	if (usl == uwsgi.fs_brutal_reload) {
+                if (uwsgi.die_on_term) {
+                        uwsgi_block_signal(SIGQUIT);
+                        reap_them_all(0);
+                        uwsgi_unblock_signal(SIGQUIT);
+                }
+                else {
+                        uwsgi_block_signal(SIGTERM);
+                        reap_them_all(0);
+                        uwsgi_unblock_signal(SIGTERM);
+                }
+                return 1;
+        }
+
+	// fallback to signal
+        uwsgi_route_signal(atoi(usl->custom_ptr));
+	return 1;
+}
+

core/gateway.c

@@ -41,7 +41,7 @@ struct uwsgi_gateway *register_gateway(char *name, void (*loop) (int, void *), v
 	uwsgi_socket_nb(ug->internal_subscription_pipe[0]);
 	uwsgi_socket_nb(ug->internal_subscription_pipe[1]);
 
-	if (!uwsgi.master_process)
+	if (!uwsgi.master_process && !uwsgi.force_gateway)
 		gateway_respawn(ushared->gateways_cnt);
 
 	ushared->gateways_cnt++;
@@ -70,6 +70,7 @@ void gateway_respawn(int id) {
 
 	if (gw_pid == 0) {
 		uwsgi_fixup_fds(0, 0, ug);
+		uwsgi_close_all_sockets();
 		if (uwsgi.master_as_root)
 			uwsgi_as_root();
 #ifdef __linux__

core/hash.c

@@ -17,7 +17,7 @@ uint32_t djb33x_hash(char *key, uint64_t keylen) {
 
 // Murmur2 hash Copyright (C) Austin Appleby
 // adapted from nginx
-uint32_t murmur2_hash(char *key, uint64_t keylen) {
+static uint32_t murmur2_hash(char *key, uint64_t keylen) {
 
 	uint32_t  h, k;
 	uint8_t *ukey = (uint8_t *) key;
@@ -56,6 +56,23 @@ uint32_t murmur2_hash(char *key, uint64_t keylen) {
 	return h;
 }
 
+static uint32_t random_hash(char *key, uint64_t keylen) {
+	return (uint32_t) rand();
+}
+
+/*
+	not atomic, avoid its use in multithreaded modes
+*/
+static uint32_t rr_hash(char *key, uint64_t keylen) {
+	static uint32_t rr = 0;
+	uint32_t max_value = uwsgi_str_num(key, keylen);
+	uint32_t ret = rr;
+	rr++;
+	if (rr > max_value) {
+		rr = 0;
+	}
+	return ret;
+}
 
 struct uwsgi_hash_algo *uwsgi_hash_algo_get(char *name) {
 	struct uwsgi_hash_algo *uha = uwsgi.hash_algos;
@@ -90,4 +107,7 @@ void uwsgi_hash_algo_register(char *name, uint32_t (*func)(char *, uint64_t)) {
 void uwsgi_hash_algo_register_all() {
 	uwsgi_hash_algo_register("djb33x", djb33x_hash);
 	uwsgi_hash_algo_register("murmur2", murmur2_hash);
+	uwsgi_hash_algo_register("random", random_hash);
+	uwsgi_hash_algo_register("rand", random_hash);
+	uwsgi_hash_algo_register("rr", rr_hash);
 }

core/hooks.c

@@ -0,0 +1,217 @@
+#include <uwsgi.h>
+
+extern struct uwsgi_server uwsgi;
+
+/*
+
+	advanced (pluggable) hooks
+
+	they are executed before the other hooks, and can be extended by plugins
+
+	if a plugin tries to register an hook with a name already available in the list, its function
+	will be overridden
+
+*/
+
+struct uwsgi_hook *uwsgi_hook_by_name(char *name) {
+	struct uwsgi_hook *uh = uwsgi.hooks;
+	while(uh) {
+		if (!strcmp(uh->name, name)) {
+			return uh;
+		}
+		uh = uh->next;
+	}
+	return NULL;
+}
+
+void uwsgi_register_hook(char *name, int (*func)(char *)) {
+	struct uwsgi_hook *old_uh = NULL, *uh = uwsgi.hooks;
+        while(uh) {
+                if (!strcmp(uh->name, name)) {
+                        uh->func = func;
+			return;
+                }
+		old_uh = uh;
+		uh = uh->next;
+        }
+
+	uh = uwsgi_calloc(sizeof(struct uwsgi_hook));
+	uh->name = name;
+	uh->func = func;
+
+	if (old_uh) {
+		old_uh->next = uh;
+	}
+	else {
+		uwsgi.hooks = uh;
+	}
+}
+
+static int uwsgi_hook_chdir(char *arg) {
+	int ret = chdir(arg);
+	if (ret) {
+		uwsgi_error("uwsgi_hook_chdir()");
+	}
+	return ret;
+}
+
+static int uwsgi_hook_exec(char *arg) {
+	int ret = uwsgi_run_command_and_wait(NULL, arg);
+	if (ret != 0) {
+        	uwsgi_log("command \"%s\" exited with non-zero code: %d\n", arg, ret);
+        }
+	return ret;
+}
+
+static int uwsgi_hook_exit(char *arg) {
+	int exit_code = 0;
+	if (strlen(arg) > 1) {
+		exit_code = atoi(arg);
+	}
+	exit(exit_code);
+}
+
+static int uwsgi_hook_print(char *arg) {
+	char *line = uwsgi_concat2(arg, "\n");
+	uwsgi_log(line);
+	free(line);
+	return 0;
+}
+
+static int uwsgi_hook_callint(char *arg) {
+        char *space = strchr(arg, ' ');
+        if (space) {
+                *space = 0;
+                int num = atoi(space+1);
+                void (*func)(int) = dlsym(RTLD_DEFAULT, arg);
+                if (!func) {
+                	uwsgi_log("unable to call function \"%s(%d)\"\n", arg, num);
+                        *space = ' ';
+                        return -1;
+		}
+                *space = ' ';
+                func(num);
+        }
+        else {
+                void (*func)(void) = dlsym(RTLD_DEFAULT, arg);
+                if (!func) {
+                        uwsgi_log("unable to call function \"%s\"\n", arg);
+                        return -1;
+                }
+                func();
+        }
+        return 0;
+}
+
+
+static int uwsgi_hook_call(char *arg) {
+	char *space = strchr(arg, ' ');
+	if (space) {
+		*space = 0;
+		void (*func)(char *) = dlsym(RTLD_DEFAULT, arg);
+                if (!func) {
+                	uwsgi_log("unable to call function \"%s(%s)\"\n", arg, space + 1);
+			*space = ' ';
+			return -1;
+		}
+		*space = ' ';
+                func(space + 1);
+	}
+	else {
+		void (*func)(void) = dlsym(RTLD_DEFAULT, arg);
+                if (!func) {
+                	uwsgi_log("unable to call function \"%s\"\n", arg);
+			return -1;
+		}
+                func();
+	}
+	return 0;
+}
+
+static int uwsgi_hook_callintret(char *arg) {
+        char *space = strchr(arg, ' ');
+        if (space) {
+                *space = 0;
+                int num = atoi(space+1);
+                int (*func)(int) = dlsym(RTLD_DEFAULT, arg);
+                if (!func) {
+                        uwsgi_log("unable to call function \"%s(%d)\"\n", arg, num);
+                        *space = ' ';
+                        return -1;
+                }
+                *space = ' ';
+                return func(num);
+        }
+        int (*func)(void) = dlsym(RTLD_DEFAULT, arg);
+        if (!func) {
+        	uwsgi_log("unable to call function \"%s\"\n", arg);
+                return -1;
+        }
+	return func();
+}
+
+
+static int uwsgi_hook_callret(char *arg) {
+        char *space = strchr(arg, ' ');
+        if (space) {
+                *space = 0;
+                int (*func)(char *) = dlsym(RTLD_DEFAULT, arg);
+                if (!func) {
+                        uwsgi_log("unable to call function \"%s(%s)\"\n", arg, space + 1);
+                        *space = ' ';
+                        return -1;
+                }
+                *space = ' ';
+                return func(space + 1);
+        }
+        int (*func)(void) = dlsym(RTLD_DEFAULT, arg);
+        if (!func) {
+        	uwsgi_log("unable to call function \"%s\"\n", arg);
+                return -1;
+        }
+        return func();
+}
+
+
+void uwsgi_register_base_hooks() {
+	uwsgi_register_hook("cd", uwsgi_hook_chdir);
+	uwsgi_register_hook("exec", uwsgi_hook_exec);
+
+	uwsgi_register_hook("mount", uwsgi_mount_hook);
+	uwsgi_register_hook("umount", uwsgi_umount_hook);
+
+	uwsgi_register_hook("call", uwsgi_hook_call);
+	uwsgi_register_hook("callret", uwsgi_hook_callret);
+
+	uwsgi_register_hook("callint", uwsgi_hook_callint);
+	uwsgi_register_hook("callintret", uwsgi_hook_callintret);
+
+	// for testing
+	uwsgi_register_hook("exit", uwsgi_hook_exit);
+	uwsgi_register_hook("print", uwsgi_hook_print);
+}
+
+void uwsgi_hooks_run(struct uwsgi_string_list *l, char *phase, int fatal) {
+	struct uwsgi_string_list *usl = NULL;
+	uwsgi_foreach(usl, l) {
+		char *colon = strchr(usl->value, ':');
+		if (!colon) {
+			uwsgi_log("invalid hook syntax, must be hook:args\n");
+			exit(1);
+		}
+		*colon = 0;
+		struct uwsgi_hook *uh = uwsgi_hook_by_name(usl->value);
+		if (!uh) {
+			uwsgi_log("hook not found: %s\n", usl->value);
+			exit(1);
+		}
+		*colon = ':';
+
+		uwsgi_log("running \"%s\" (%s)...\n", usl->value, phase);
+			
+		int ret = uh->func(colon+1);
+		if (fatal && ret != 0) {
+			exit(1);
+		}
+	}
+}

core/init.c

@@ -51,6 +51,7 @@ struct http_status_codes hsc[] = {
         {"503", "Service Unavailable"},
         {"504", "Gateway Timeout"},
         {"505", "HTTP Version Not Supported"},
+        {"509", "Bandwidth Limit Exceeded"},
         {"", NULL},
 };
 
@@ -75,10 +76,12 @@ void uwsgi_init_default() {
 	uwsgi.original_log_fd = -1;
 
 	uwsgi.emperor_fd_config = -1;
+	uwsgi.emperor_fd_proxy = -1;
 	// default emperor scan frequency
 	uwsgi.emperor_freq = 3;
 	uwsgi.emperor_throttle = 1000;
 	uwsgi.emperor_heartbeat = 30;
+	uwsgi.emperor_curse_tolerance = 30;
 	// max 3 minutes throttling
 	uwsgi.emperor_max_throttle = 1000 * 180;
 	uwsgi.emperor_pid = -1;
@@ -169,6 +172,15 @@ void uwsgi_init_default() {
 	uwsgi.wait_write_hook = uwsgi_simple_wait_write_hook;
 
 	uwsgi_websockets_init();
+	
+	// 1 MB default limit
+	uwsgi.chunked_input_limit = 1024*1024;
+
+	// clear reforked status
+	uwsgi.master_is_reforked = 0;
+
+	uwsgi.master_fifo_fd = -1;
+	uwsgi_master_fifo_prepare();
 }
 
 void uwsgi_setup_reload() {
@@ -213,21 +225,19 @@ void uwsgi_autoload_plugins_by_name(char *argv_zero) {
 		p = original_proc_name;
 	p = strstr(p, "uwsgi_");
 	if (p != NULL) {
-		plugins_requested = strtok(uwsgi_str(p + 6), "_");
-		while (plugins_requested) {
+		char *ctx = NULL;
+		uwsgi_foreach_token(uwsgi_str(p + 6), "_", plugins_requested, ctx) {
 			uwsgi_log("[uwsgi] implicit plugin requested %s\n", plugins_requested);
 			uwsgi_load_plugin(-1, plugins_requested, NULL);
-			plugins_requested = strtok(NULL, "_");
 		}
 	}
 
 	plugins_requested = getenv("UWSGI_PLUGINS");
 	if (plugins_requested) {
 		plugins_requested = uwsgi_concat2(plugins_requested, "");
-		char *p = strtok(plugins_requested, ",");
-		while (p != NULL) {
+		char *p, *ctx = NULL;
+		uwsgi_foreach_token(plugins_requested, ",", p, ctx) {
 			uwsgi_load_plugin(-1, p, NULL);
-			p = strtok(NULL, ",");
 		}
 	}
 
@@ -354,6 +364,7 @@ void uwsgi_setup_workers() {
 #ifdef UWSGI_ROUTING
 	uwsgi_fixup_routes(uwsgi.routes);
 	uwsgi_fixup_routes(uwsgi.error_routes);
+	uwsgi_fixup_routes(uwsgi.response_routes);
 	uwsgi_fixup_routes(uwsgi.final_routes);
 #endif
 
@@ -384,6 +395,8 @@ pid_t uwsgi_daemonize2() {
 		uwsgi_write_pidfile(uwsgi.pidfile2);
 	}
 
+	if (uwsgi.log_master) uwsgi_setup_log_master();
+
 	return uwsgi.mypid;
 }
 
@@ -446,6 +459,25 @@ void sanitize_args() {
 		exit(1);
 	}
 
+	if (uwsgi.cheaper_rss_limit_soft && uwsgi.shared->options[UWSGI_OPTION_MEMORY_DEBUG] != 1 && uwsgi.force_get_memusage != 1) {
+		uwsgi_log("enabling cheaper-rss-limit-soft requires enabling also memory-report\n");
+		exit(1);
+	}
+	if (uwsgi.cheaper_rss_limit_hard && !uwsgi.cheaper_rss_limit_soft) {
+		uwsgi_log("enabling cheaper-rss-limit-hard requires setting also cheaper-rss-limit-soft\n");
+		exit(1);
+	}
+	if ( uwsgi.cheaper_rss_limit_hard && uwsgi.cheaper_rss_limit_hard <= uwsgi.cheaper_rss_limit_soft) {
+		uwsgi_log("cheaper-rss-limit-hard value must be higher than cheaper-rss-limit-soft value\n");
+		exit(1);
+	}
+
+	/* here we try to choose if thunder lock is a good thing */
+#ifdef UNBIT
+	if (uwsgi.numproc > 1 && !uwsgi.map_socket) {
+		uwsgi.use_thunder_lock = 1;
+	}
+#endif
 }
 
 const char *uwsgi_http_status_msg(char *status, uint16_t *len) {

core/io.c

@@ -116,48 +116,31 @@ end:
 
 }
 
-/*
-	extremely complex function for reading resources (files, url...)
-	need a lot of refactoring...
-*/
-char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_table[]) {
+static char *uwsgi_scheme_fd(char *url, size_t *size, int add_zero) {
+	int fd = atoi(url);
+	return uwsgi_read_fd(fd, size, add_zero);
+}
 
-	int fd;
-	struct stat sb;
-	char *buffer = NULL;
+static char *uwsgi_scheme_exec(char *url, size_t *size, int add_zero) {
+	int cpipe[2];
+	if (pipe(cpipe)) {
+		uwsgi_error("pipe()");
+		exit(1);
+	}
+	uwsgi_run_command(url, NULL, cpipe[1]);
+	char *buffer = uwsgi_read_fd(cpipe[0], size, add_zero);
+	close(cpipe[0]);
+	close(cpipe[1]);
+	return buffer;
+}
+
+static char *uwsgi_scheme_http(char *url, size_t *size, int add_zero) {
 	char byte;
-	ssize_t len;
-	char *uri, *colon;
-	char *domain;
-	char *ip;
-	int body = 0;
-	char *magic_buf;
+        int body = 0;
+	char *buffer = NULL;
 
-	// stdin ?
-	if (!strcmp(url, "-")) {
-		buffer = uwsgi_read_fd(0, size, add_zero);
-	}
-	// fd ?
-	else if (!strncmp("fd://", url, 5)) {
-		fd = atoi(url + 5);
-		buffer = uwsgi_read_fd(fd, size, add_zero);
-	}
-	// exec ?
-	else if (!strncmp("exec://", url, 5)) {
-		int cpipe[2];
-		if (pipe(cpipe)) {
-			uwsgi_error("pipe()");
-			exit(1);
-		}
-		uwsgi_run_command(url + 7, NULL, cpipe[1]);
-		buffer = uwsgi_read_fd(cpipe[0], size, add_zero);
-		close(cpipe[0]);
-		close(cpipe[1]);
-	}
-	// http url ?
-	else if (!strncmp("http://", url, 7)) {
-		domain = url + 7;
-		uri = strchr(domain, '/');
+		char *domain = url;
+		char *uri = strchr(domain, '/');
 		if (!uri) {
 			uwsgi_log("invalid http url\n");
 			exit(1);
@@ -165,14 +148,14 @@ char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_tab
 		uri[0] = 0;
 		uwsgi_log("domain: %s\n", domain);
 
-		colon = uwsgi_get_last_char(domain, ':');
+		char *colon = uwsgi_get_last_char(domain, ':');
 
 		if (colon) {
 			colon[0] = 0;
 		}
 
 
-		ip = uwsgi_resolve_ip(domain);
+		char *ip = uwsgi_resolve_ip(domain);
 		if (!ip) {
 			uwsgi_log("unable to resolve address %s\n", domain);
 			exit(1);
@@ -186,9 +169,10 @@ char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_tab
 			ip = uwsgi_concat2(ip, ":80");
 		}
 
-		fd = uwsgi_connect(ip, 0, 0);
+		int fd = uwsgi_connect(ip, 0, 0);
 
 		if (fd < 0) {
+			uwsgi_error("uwsgi_scheme_http()/connect()");
 			exit(1);
 		}
 
@@ -196,18 +180,18 @@ char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_tab
 
 		uri[0] = '/';
 
-		len = write(fd, "GET ", 4);
-		len = write(fd, uri, strlen(uri));
-		len = write(fd, " HTTP/1.0\r\n", 11);
-		len = write(fd, "Host: ", 6);
+		if (write(fd, "GET ", 4) != 4) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
+		if (write(fd, uri, strlen(uri)) != (ssize_t) strlen(uri)) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
+		if (write(fd, " HTTP/1.0\r\n", 11) != 11) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
+		if (write(fd, "Host: ", 6) != 6) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
 
 		uri[0] = 0;
-		len = write(fd, domain, strlen(domain));
+		if (write(fd, domain, strlen(domain)) != (ssize_t) strlen(domain)) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
 		uri[0] = '/';
 
-		len = write(fd, "\r\nUser-Agent: uWSGI on ", 23);
-		len = write(fd, uwsgi.hostname, uwsgi.hostname_len);
-		len = write(fd, "\r\n\r\n", 4);
+		if (write(fd, "\r\nUser-Agent: uWSGI on ", 23) != 23) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
+		if (write(fd, uwsgi.hostname, uwsgi.hostname_len) != uwsgi.hostname_len) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
+		if (write(fd, "\r\n\r\n", 4) != 4) { uwsgi_error("uwsgi_scheme_http()/write()"); exit(1);}
 
 		int http_status_code_ptr = 0;
 
@@ -264,57 +248,233 @@ char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_tab
 			buffer[*size - 1] = 0;
 		}
 
+	return buffer;
+}
+
+
+static char *uwsgi_scheme_emperor(char *url, size_t *size, int add_zero) {
+
+	if (uwsgi.emperor_fd_config < 0) {
+		uwsgi_log("this is not a vassal instance\n");
+		exit(1);
 	}
-	else if (!strncmp("emperor://", url, 10)) {
-		if (uwsgi.emperor_fd_config < 0) {
-			uwsgi_log("this is not a vassal instance\n");
+	ssize_t rlen;
+	struct uwsgi_header uh;
+	size_t remains = 4;
+	char *ptr = (char *) &uh;
+	while(remains) {
+		int ret = uwsgi_waitfd(uwsgi.emperor_fd_config, 5);
+		if (ret <= 0) {
+			uwsgi_log("[uwsgi-vassal] error waiting for config header %s !!!\n", url);
 			exit(1);
 		}
-		ssize_t rlen;
-		*size = 0;
-		struct uwsgi_header uh;
-		size_t remains = 4;
-		char *ptr = (char *) &uh;
-		while(remains) {
-			int ret = uwsgi_waitfd(uwsgi.emperor_fd_config, 5);
-			if (ret <= 0) {
-				uwsgi_log("[uwsgi-vassal] error waiting for config header %s !!!\n", url);
-				exit(1);
-			}
-			rlen = read(uwsgi.emperor_fd_config, ptr, remains);
-			if (rlen <= 0) {
-				uwsgi_log("[uwsgi-vassal] error reading config header from !!!\n", url);
-				exit(1);
-			}
-			ptr+=rlen;
-			remains-=rlen;
+		rlen = read(uwsgi.emperor_fd_config, ptr, remains);
+		if (rlen <= 0) {
+			uwsgi_log("[uwsgi-vassal] error reading config header from %s !!!\n", url);
+			exit(1);
 		}
+		ptr+=rlen;
+		remains-=rlen;
+	}
 
-		remains = uh.pktsize;
-		if (!remains) {
-			uwsgi_log("[uwsgi-vassal] invalid config from %s\n", url);
+	remains = uh.pktsize;
+	if (!remains) {
+		uwsgi_log("[uwsgi-vassal] invalid config from %s\n", url);
+		exit(1);
+	}
+
+	char *buffer = uwsgi_calloc(remains + add_zero);
+	ptr = buffer;
+	while (remains) {
+		int ret = uwsgi_waitfd(uwsgi.emperor_fd_config, 5);
+                if (ret <= 0) {
+                	uwsgi_log("[uwsgi-vassal] error waiting for config %s !!!\n", url);
+                        exit(1);
+                }
+		rlen = read(uwsgi.emperor_fd_config, ptr, remains);
+		if (rlen <= 0) {
+                	uwsgi_log("[uwsgi-vassal] error reading config from %s !!!\n", url);
+                        exit(1);
+                }
+                ptr+=rlen;
+                remains-=rlen;
+	}
+
+	*size = uh.pktsize + add_zero;
+	return buffer;
+}
+
+static char *uwsgi_scheme_data(char *url, size_t *size, int add_zero) {
+	char *buffer = NULL;
+	int fd = open(uwsgi.binary_path, O_RDONLY);
+	if (fd < 0) {
+		uwsgi_error_open(uwsgi.binary_path);
+		exit(1);
+	}
+	int slot = atoi(url);
+	if (slot < 0) {
+		uwsgi_log("invalid binary data slot requested\n");
+		exit(1);
+	}
+	uwsgi_log("requesting binary data slot %d\n", slot);
+	off_t fo = lseek(fd, 0, SEEK_END);
+	if (fo < 0) {
+		uwsgi_error("lseek()");
+		uwsgi_log("invalid binary data slot requested\n");
+		exit(1);
+	}
+	int i = 0;
+	uint64_t datasize = 0;
+	for (i = 0; i <= slot; i++) {
+		fo = lseek(fd, -8, SEEK_CUR);
+		if (fo < 0) {
+			uwsgi_error("lseek()");
+			uwsgi_log("invalid binary data slot requested\n");
+			exit(1);
+		}
+		ssize_t len = read(fd, &datasize, 8);
+		if (len != 8) {
+			uwsgi_error("read()");
+			uwsgi_log("invalid binary data slot requested\n");
+			exit(1);
+		}
+		if (datasize == 0) {
+			uwsgi_log("0 size binary data !!!\n");
+			exit(1);
+		}
+		fo = lseek(fd, -(datasize + 8), SEEK_CUR);
+		if (fo < 0) {
+			uwsgi_error("lseek()");
+			uwsgi_log("invalid binary data slot requested\n");
 			exit(1);
 		}
 
-		buffer = uwsgi_calloc(remains + add_zero);
-		ptr = buffer;
-		while (remains) {
-			int ret = uwsgi_waitfd(uwsgi.emperor_fd_config, 5);
-                        if (ret <= 0) {
-                                uwsgi_log("[uwsgi-vassal] error waiting for config %s !!!\n", url);
-                                exit(1);
-                        }
-			rlen = read(uwsgi.emperor_fd_config, ptr, remains);
-			if (rlen <= 0) {
-                                uwsgi_log("[uwsgi-vassal] error reading config from !!!\n", url);
-                                exit(1);
-                        }
-                        ptr+=rlen;
-                        remains-=rlen;
+		if (i == slot) {
+			*size = datasize;
+			if (add_zero) {
+				*size += 1;
+			}
+			buffer = uwsgi_malloc(*size);
+			memset(buffer, 0, *size);
+			len = read(fd, buffer, datasize);
+			if (len != (ssize_t) datasize) {
+				uwsgi_error("read()");
+				uwsgi_log("invalid binary data slot requested\n");
+				exit(1);
+			}
 		}
-
-		*size = uh.pktsize + add_zero;
 	}
+	close(fd);
+
+	return buffer;
+}
+
+static char *uwsgi_scheme_call(char *url, size_t *size, int add_zero) {
+        char *(*func)(void) = dlsym(RTLD_DEFAULT, url);
+	if (!func) {
+		uwsgi_log("unable to find symbol %s\n", url);
+                exit(1);
+	}
+
+	char *s = func();
+	if (!s) {
+		uwsgi_log("called symbol %s did not return a string\n", url);
+                exit(1);
+	}
+        *size = strlen(s);
+        if (add_zero) {
+                *size += 1;
+        }
+        char *buffer = uwsgi_malloc(*size);
+        memset(buffer, 0, *size);
+        memcpy(buffer, s, strlen(s));
+
+        return buffer;
+}
+
+
+static char *uwsgi_scheme_sym(char *url, size_t *size, int add_zero) {
+	void *sym_start_ptr = NULL, *sym_end_ptr = NULL;
+	char **raw_symbol = dlsym(RTLD_DEFAULT, url);
+	if (raw_symbol) {
+		sym_start_ptr = *raw_symbol;
+		sym_end_ptr = sym_start_ptr + strlen(sym_start_ptr);
+		goto found;
+	}
+	char *symbol = uwsgi_concat3("_binary_", url, "_start");
+	sym_start_ptr = dlsym(RTLD_DEFAULT, symbol);
+	if (!sym_start_ptr) {
+		uwsgi_log("unable to find symbol %s\n", symbol);
+		exit(1);
+	}
+	free(symbol);
+	symbol = uwsgi_concat3("_binary_", url, "_end");
+	sym_end_ptr = dlsym(RTLD_DEFAULT, symbol);
+	if (!sym_end_ptr) {
+		uwsgi_log("unable to find symbol %s\n", symbol);
+		exit(1);
+	}
+	free(symbol);
+
+found:
+
+	*size = sym_end_ptr - sym_start_ptr;
+	if (add_zero) {
+		*size += 1;
+	}
+	char *buffer = uwsgi_malloc(*size);
+	memset(buffer, 0, *size);
+	memcpy(buffer, sym_start_ptr, sym_end_ptr - sym_start_ptr);
+
+	return buffer;
+}
+
+static char *uwsgi_scheme_section(char *url, size_t *size, int add_zero) {
+#ifdef UWSGI_ELF
+	size_t s_len = 0;
+	char *buffer = uwsgi_elf_section(uwsgi.binary_path, url, &s_len);
+	if (!buffer) {
+		uwsgi_log("unable to find section %s in %s\n", url + 10, uwsgi.binary_path);
+		exit(1);
+	}
+	*size = s_len;
+	if (add_zero)
+		*size += 1;
+	return buffer;
+#else
+	uwsgi_log("section:// scheme not supported on this platform\n");
+	exit(1);
+#endif
+}
+
+struct uwsgi_string_list *uwsgi_register_scheme(char *name, char * (*func)(char *, size_t *, int)) {
+	struct uwsgi_string_list *usl = NULL;
+	uwsgi_foreach(usl, uwsgi.schemes) {
+		if (!strcmp(usl->value, name)) goto found;
+	}
+
+	usl = uwsgi_string_new_list(&uwsgi.schemes, name); 	
+
+found:
+	usl->custom_ptr = func;
+	return usl;
+}
+
+char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_table[]) {
+
+        struct stat sb;
+        char *buffer = NULL;
+        ssize_t len;
+        char *magic_buf;
+	int fd;
+
+	*size = 0;
+
+        // stdin ?
+        if (!strcmp(url, "-")) {
+                buffer = uwsgi_read_fd(0, size, add_zero);
+		goto end;
+        }
 #ifdef UWSGI_EMBED_CONFIG
 	else if (url[0] == 0) {
 		*size = &UWSGI_EMBED_CONFIG_END - &UWSGI_EMBED_CONFIG;
@@ -324,108 +484,22 @@ char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_tab
 		buffer = uwsgi_malloc(*size);
 		memset(buffer, 0, *size);
 		memcpy(buffer, &UWSGI_EMBED_CONFIG, &UWSGI_EMBED_CONFIG_END - &UWSGI_EMBED_CONFIG);
+		goto end;
 	}
 #endif
-	else if (!strncmp("data://", url, 7)) {
-		fd = open(uwsgi.binary_path, O_RDONLY);
-		if (fd < 0) {
-			uwsgi_error_open(uwsgi.binary_path);
-			exit(1);
-		}
-		int slot = atoi(url + 7);
-		if (slot < 0) {
-			uwsgi_log("invalid binary data slot requested\n");
-			exit(1);
-		}
-		uwsgi_log("requesting binary data slot %d\n", slot);
-		off_t fo = lseek(fd, 0, SEEK_END);
-		if (fo < 0) {
-			uwsgi_error("lseek()");
-			uwsgi_log("invalid binary data slot requested\n");
-			exit(1);
-		}
-		int i = 0;
-		uint64_t datasize = 0;
-		for (i = 0; i <= slot; i++) {
-			fo = lseek(fd, -9, SEEK_CUR);
-			if (fo < 0) {
-				uwsgi_error("lseek()");
-				uwsgi_log("invalid binary data slot requested\n");
-				exit(1);
-			}
-			ssize_t len = read(fd, &datasize, 8);
-			if (len != 8) {
-				uwsgi_error("read()");
-				uwsgi_log("invalid binary data slot requested\n");
-				exit(1);
-			}
-			if (datasize == 0) {
-				uwsgi_log("0 size binary data !!!\n");
-				exit(1);
-			}
-			fo = lseek(fd, -(datasize + 9), SEEK_CUR);
-			if (fo < 0) {
-				uwsgi_error("lseek()");
-				uwsgi_log("invalid binary data slot requested\n");
-				exit(1);
-			}
 
-			if (i == slot) {
-				*size = datasize;
-				if (add_zero) {
-					*size += 1;
-				}
-				buffer = uwsgi_malloc(*size);
-				memset(buffer, 0, *size);
-				len = read(fd, buffer, datasize);
-				if (len != (ssize_t) datasize) {
-					uwsgi_error("read()");
-					uwsgi_log("invalid binary data slot requested\n");
-					exit(1);
-				}
-			}
-		}
-	}
-	else if (!strncmp("sym://", url, 6)) {
-		char *symbol = uwsgi_concat3("_binary_", url + 6, "_start");
-		void *sym_start_ptr = dlsym(RTLD_DEFAULT, symbol);
-		if (!sym_start_ptr) {
-			uwsgi_log("unable to find symbol %s\n", symbol);
-			exit(1);
-		}
-		free(symbol);
-		symbol = uwsgi_concat3("_binary_", url + 6, "_end");
-		void *sym_end_ptr = dlsym(RTLD_DEFAULT, symbol);
-		if (!sym_end_ptr) {
-			uwsgi_log("unable to find symbol %s\n", symbol);
-			exit(1);
-		}
-		free(symbol);
+	struct uwsgi_string_list *usl = uwsgi_check_scheme(url);
+	if (!usl) goto fallback;
 
-		*size = sym_end_ptr - sym_start_ptr;
-		if (add_zero) {
-			*size += 1;
-		}
-		buffer = uwsgi_malloc(*size);
-		memset(buffer, 0, *size);
-		memcpy(buffer, sym_start_ptr, sym_end_ptr - sym_start_ptr);
-
-	}
-#ifdef UWSGI_ELF
-	else if (!strncmp("section://", url, 10)) {
-		size_t s_len = 0;
-		buffer = uwsgi_elf_section(uwsgi.binary_path, url + 10, &s_len);
-		if (!buffer) {
-			uwsgi_log("unable to find section %s in %s\n", url + 10, uwsgi.binary_path);
-			exit(1);
-		}
-		*size = s_len;
-		if (add_zero)
-			*size += 1;
-	}
-#endif
+	char *(*func)(char *, size_t *, int) = (char *(*)(char *, size_t *, int)) usl->custom_ptr;
+	buffer = func(url + usl->len + 3, size, add_zero);
+	if (buffer) goto end;
+	// never here !!!
+	uwsgi_log("unable to parse config file %s\n", url);
+	exit(1);
+	
 	// fallback to file
-	else {
+fallback:
 		fd = open(url, O_RDONLY);
 		if (fd < 0) {
 			uwsgi_error_open(url);
@@ -457,7 +531,6 @@ char *uwsgi_open_and_read(char *url, size_t *size, int add_zero, char *magic_tab
 
 		if (add_zero)
 			buffer[sb.st_size] = 0;
-	}
 
 end:
 
@@ -1078,3 +1151,63 @@ void uwsgi_add_safe_fd(int fd) {
 	uwsgi.safe_fds[uwsgi.safe_fds_cnt] = fd;	
 	uwsgi.safe_fds_cnt++;
 }
+
+int uwsgi_is_again() {
+	if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINPROGRESS) {
+		return 1;
+	}
+	return 0;
+}
+
+void uwsgi_disconnect(struct wsgi_request *wsgi_req) {
+	if (wsgi_req->socket) {
+                wsgi_req->socket->proto_close(wsgi_req);
+        }
+        wsgi_req->fd_closed = 1;
+}
+
+int uwsgi_ready_fd(struct wsgi_request *wsgi_req) {
+	if (wsgi_req->async_ready_fd) return wsgi_req->async_last_ready_fd;
+	return -1;
+}
+
+void uwsgi_setup_schemes() {
+	uwsgi_register_scheme("emperor", uwsgi_scheme_emperor);	
+	uwsgi_register_scheme("http", uwsgi_scheme_http);	
+	uwsgi_register_scheme("data", uwsgi_scheme_data);	
+	uwsgi_register_scheme("sym", uwsgi_scheme_sym);	
+	uwsgi_register_scheme("section", uwsgi_scheme_section);	
+	uwsgi_register_scheme("fd", uwsgi_scheme_fd);	
+	uwsgi_register_scheme("exec", uwsgi_scheme_exec);	
+	uwsgi_register_scheme("call", uwsgi_scheme_call);	
+}
+
+struct uwsgi_string_list *uwsgi_check_scheme(char *file) {
+	struct uwsgi_string_list *usl;
+	uwsgi_foreach(usl, uwsgi.schemes) {
+		char *url = uwsgi_concat2(usl->value, "://");
+		int ret = uwsgi_startswith(file, url, strlen(url));
+		free(url);
+		if (!ret) return usl;
+	}
+	return NULL;
+}
+
+void uwsgi_remap_fd(int fd, char *filename) {
+
+	int fdin = open(filename, O_RDWR);
+        if (fdin < 0) {
+                uwsgi_error_open(filename);
+                exit(1);
+        }
+
+        /* stdin */
+        if (fdin != fd) {
+                if (dup2(fdin, fd) < 0) {
+                        uwsgi_error("uwsgi_remap_fd()/dup2()");
+                        exit(1);
+                }
+                close(fdin);
+        }
+}
+

core/json.c

@@ -106,6 +106,8 @@ void uwsgi_json_config(char *file, char *magic_table[]) {
 		config_iter = json_object_iter_next(config, config_iter);
 	}
 
+	if (colon) colon[0] = ':';
+
 }
 
 #endif

core/legion.c

@@ -79,6 +79,9 @@ void uwsgi_parse_legion(char *key, uint16_t keylen, char *value, uint16_t vallen
 		ul->scroll = value;
 		ul->scroll_len = vallen;
 	}
+	else if (!uwsgi_strncmp(key, keylen, "dead", 4)) {
+		ul->dead = 1;
+	}
 }
 
 // this function is called when a node is added or removed (heavy locking is needed)
@@ -611,6 +614,14 @@ static void *legion_loop(void *foobar) {
 					usl = usl->next;
 				}
 			}
+			// remove node announcing death
+			else if (legion_msg.dead) {
+				uwsgi_log("[uwsgi-legion] %s: %.*s valor: %llu uuid: %.*s announced its death to Legion %s\n", node->valor > 0 ? "node" : "arbiter", node->name_len, node->name, node->valor, 36, node->uuid, ul->legion);
+                                uwsgi_wlock(ul->lock);
+                                uwsgi_legion_remove_node(ul, node);
+                                uwsgi_rwunlock(ul->lock);
+				continue;
+			}
 
 			node->last_seen = uwsgi_now();
 			node->lord_valor = legion_msg.lord_valor;
@@ -752,8 +763,11 @@ int uwsgi_legion_announce(struct uwsgi_legion *ul) {
 		if (uwsgi_buffer_append_keyval(ub, "scroll", 6, ul->scroll, ul->scroll_len))
                 	goto err;
 	}
-#ifdef UWSGI_UUID
-#endif
+
+	if (ul->dead) {
+		if (uwsgi_buffer_append_keyval(ub, "dead", 4, "1", 1))
+                	goto err;
+	}
 
 	unsigned char *encrypted = uwsgi_malloc(ub->pos + 4 + EVP_MAX_BLOCK_LENGTH);
 	if (EVP_EncryptInit_ex(ul->encrypt_ctx, NULL, NULL, NULL, NULL) <= 0) {
@@ -1122,6 +1136,14 @@ void uwsgi_legion_action_register(char *name, int (*func) (struct uwsgi_legion *
 	}
 }
 
+void uwsgi_legion_announce_death(void) {
+	struct uwsgi_legion *legion = uwsgi.legions;
+        while (legion) {
+                legion->dead = 1;
+                uwsgi_legion_announce(legion);
+                legion = legion->next;
+        }
+}
 
 void uwsgi_legion_atexit(void) {
 	struct uwsgi_legion *legion = uwsgi.legions;
@@ -1140,6 +1162,7 @@ next:
 		legion = legion->next;
 	}
 
+	uwsgi_legion_announce_death();
 }
 
 int uwsgi_legion_i_am_the_lord(char *name) {

core/lock.c

@@ -493,7 +493,7 @@ struct uwsgi_lock_item *uwsgi_lock_ipcsem_init(char *id) {
 	if (uwsgi.ftok) {
 		myKey = ftok(uwsgi.ftok, counter);
 		if (myKey < 0) {
-			uwsgi_error("ftok()");
+			uwsgi_error("uwsgi_lock_ipcsem_init()/ftok()");
 			exit(1);
 		}
 		counter++;
@@ -504,7 +504,7 @@ struct uwsgi_lock_item *uwsgi_lock_ipcsem_init(char *id) {
 	}
 
 	if (semid < 0) {
-		uwsgi_error("semget()");
+		uwsgi_error("uwsgi_lock_ipcsem_init()/semget()");
 		exit(1);
 	}
 	// do this now, to allows triggering of atexit hook in case of problems
@@ -512,7 +512,7 @@ struct uwsgi_lock_item *uwsgi_lock_ipcsem_init(char *id) {
 
 	semu.val = 1;
 	if (semctl(semid, 0, SETVAL, semu)) {
-		uwsgi_error("semctl()");
+		uwsgi_error("uwsgi_lock_ipcsem_init()/semctl()");
 		exit(1);
 	}
 
@@ -532,7 +532,13 @@ void uwsgi_lock_ipcsem(struct uwsgi_lock_item *uli) {
 retry:
 	if (semop(semid, &sb, 1)) {
 		if (errno == EINTR) goto retry; 
-		uwsgi_error("semop()");
+		uwsgi_error("uwsgi_lock_ipcsem()/semop()");
+#ifdef EIDRM
+		if (errno == EIDRM) {
+			exit(UWSGI_BRUTAL_RELOAD_CODE);
+		}
+#endif
+		exit(1);
 	}
 }
 
@@ -549,7 +555,13 @@ void uwsgi_unlock_ipcsem(struct uwsgi_lock_item *uli) {
 retry:
 	if (semop(semid, &sb, 1)) {
 		if (errno == EINTR) goto retry; 
-		uwsgi_error("semop()");
+		uwsgi_error("uwsgi_unlock_ipcsem()/semop()");
+#ifdef EIDRM
+		if (errno == EIDRM) {
+			exit(UWSGI_BRUTAL_RELOAD_CODE);
+		}
+#endif
+		exit(1);
 	}
 
 }
@@ -574,6 +586,8 @@ pid_t uwsgi_lock_ipcsem_check(struct uwsgi_lock_item *uli) {
 
 void uwsgi_ipcsem_clear(void) {
 
+	if (uwsgi.persistent_ipcsem) return;
+
 	struct uwsgi_lock_item *uli = uwsgi.registered_locks;
 
 	if (!uwsgi.workers)
@@ -594,12 +608,27 @@ clear:
 
 #ifdef UWSGI_DEBUG
 	uwsgi_log("removing sysvipc semaphores...\n");
+#endif
+#ifdef GETPID
+	while (uli) {
+		int semid = 0;
+		memcpy(&semid, uli->lock_ptr, sizeof(int));
+		int ret = semctl(semid, 0, GETPID);
+		if (ret > 0) {
+			if (ret != (int) getpid() && !kill((pid_t) ret, 0)) {
+				uwsgi_log("found ipcsem mapped to alive pid %d. skipping ipcsem removal.\n", ret);
+				return;
+			}
+		}
+		uli = uli->next;
+	}
+	uli = uwsgi.registered_locks;
 #endif
 	while (uli) {
 		int semid = 0;
 		memcpy(&semid, uli->lock_ptr, sizeof(int));
 		if (semctl(semid, 0, IPC_RMID)) {
-			uwsgi_error("semctl()");
+			uwsgi_error("uwsgi_ipcsem_clear()/semctl()");
 		}
 		uli = uli->next;
 	}
@@ -610,6 +639,32 @@ pid_t uwsgi_rwlock_ipcsem_check(struct uwsgi_lock_item *uli) {
 	return uwsgi_lock_ipcsem_check(uli);
 }
 
+#ifdef UNBIT
+/*
+	Unbit-specific workaround for robust-mutexes
+*/
+void *uwsgi_robust_mutexes_watchdog_loop(void *arg) {
+	for(;;) {
+		uwsgi_lock(uwsgi.the_thunder_lock);
+		uwsgi_unlock(uwsgi.the_thunder_lock);
+	}
+	return NULL;
+}
+void uwsgi_robust_mutexes_watchdog() {
+	pthread_t tid;
+	pthread_attr_t attr;
+	pthread_attr_init(&attr);
+        pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+        // 32K should be more than enough...
+        pthread_attr_setstacksize(&attr, 32 * 1024);
+
+        if (pthread_create(&tid, &attr, uwsgi_robust_mutexes_watchdog_loop, NULL)) {
+                uwsgi_error("uwsgi_robust_mutexes_watchdog()/pthread_create()");
+		exit(1);
+        }
+}
+
+#endif
 
 void uwsgi_setup_locking() {
 
@@ -689,6 +744,14 @@ ready:
 	if (uwsgi.use_thunder_lock) {
 		// process shared thunder lock
 		uwsgi.the_thunder_lock = uwsgi_lock_init("thunder");	
+#ifdef UNBIT
+		// we have a serious bug on Unbit (and very probably on older libc)
+		// when all of the workers die in the same moment the pthread robust mutes is left
+		// in inconsistent state and we have no way to recover
+		// we span a thread in the master constantly ensuring the lock is ok
+		// for now we apply it only for Unbit (where thunder-lock is automatically enabled)
+		uwsgi_robust_mutexes_watchdog();		
+#endif
 	}
 
 	uwsgi.rpc_table_lock = uwsgi_lock_init("rpc");

core/logging.c

@@ -45,7 +45,7 @@ void uwsgi_log(const char *fmt, ...) {
 		}
 		else {
 			gettimeofday(&tv, NULL);
-#ifdef __sun__
+#if defined(__sun__) && !defined(__clang__)
 			ctime_r((const time_t *) &tv.tv_sec, ctime_storage, 26);
 #else
 			ctime_r((const time_t *) &tv.tv_sec, ctime_storage);
@@ -97,7 +97,7 @@ void uwsgi_log_verbose(const char *fmt, ...) {
 	}
 	else {
 		gettimeofday(&tv, NULL);
-#ifdef __sun__
+#if defined(__sun__) && !defined(__clang__)
 		ctime_r((const time_t *) &tv.tv_sec, ctime_storage, 26);
 #else
 		ctime_r((const time_t *) &tv.tv_sec, ctime_storage);
@@ -120,17 +120,54 @@ void uwsgi_log_verbose(const char *fmt, ...) {
 
 
 
+static void fix_logpipe_buf(int *fd) {
+	int so_bufsize;
+        socklen_t so_bufsize_len = sizeof(int);
+
+        if (getsockopt(fd[0], SOL_SOCKET, SO_RCVBUF, &so_bufsize, &so_bufsize_len)) {
+                uwsgi_error("fix_logpipe_buf()/getsockopt()");
+		return;
+        }
+
+	if ((size_t)so_bufsize < uwsgi.log_master_bufsize) {
+		so_bufsize = uwsgi.log_master_bufsize;
+		if (setsockopt(fd[0], SOL_SOCKET, SO_RCVBUF, &so_bufsize, so_bufsize_len)) {
+                        uwsgi_error("fix_logpipe_buf()/setsockopt()");
+        	}
+	}
+
+	if (getsockopt(fd[1], SOL_SOCKET, SO_SNDBUF, &so_bufsize, &so_bufsize_len)) {
+                uwsgi_error("fix_logpipe_buf()/getsockopt()");
+                return;
+        }
+
+        if ((size_t)so_bufsize < uwsgi.log_master_bufsize) {
+                so_bufsize = uwsgi.log_master_bufsize;
+                if (setsockopt(fd[1], SOL_SOCKET, SO_SNDBUF, &so_bufsize, so_bufsize_len)) {
+                        uwsgi_error("fix_logpipe_buf()/setsockopt()");
+                }
+        }
+}
 
 // create the logpipe
 void create_logpipe(void) {
 
+	if (uwsgi.log_master_stream) {
+		if (socketpair(AF_UNIX, SOCK_STREAM, 0, uwsgi.shared->worker_log_pipe)) {
+			uwsgi_error("create_logpipe()/socketpair()\n");
+			exit(1);
+		}
+	}
+	else {
 #if defined(SOCK_SEQPACKET) && defined(__linux__)
-	if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, uwsgi.shared->worker_log_pipe)) {
+		if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, uwsgi.shared->worker_log_pipe)) {
 #else
-	if (socketpair(AF_UNIX, SOCK_DGRAM, 0, uwsgi.shared->worker_log_pipe)) {
+		if (socketpair(AF_UNIX, SOCK_DGRAM, 0, uwsgi.shared->worker_log_pipe)) {
 #endif
-		uwsgi_error("socketpair()\n");
-		exit(1);
+			uwsgi_error("create_logpipe()/socketpair()\n");
+			exit(1);
+		}
+		fix_logpipe_buf(uwsgi.shared->worker_log_pipe);
 	}
 
 	uwsgi_socket_nb(uwsgi.shared->worker_log_pipe[0]);
@@ -149,13 +186,22 @@ void create_logpipe(void) {
 	}
 
 	if (uwsgi.req_log_master) {
+		if (uwsgi.log_master_req_stream) {
+			if (socketpair(AF_UNIX, SOCK_STREAM, 0, uwsgi.shared->worker_req_log_pipe)) {
+				uwsgi_error("create_logpipe()/socketpair()\n");
+				exit(1);
+			}
+		}
+		else {
 #if defined(SOCK_SEQPACKET) && defined(__linux__)
-		if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, uwsgi.shared->worker_req_log_pipe)) {
+			if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, uwsgi.shared->worker_req_log_pipe)) {
 #else
-		if (socketpair(AF_UNIX, SOCK_DGRAM, 0, uwsgi.shared->worker_req_log_pipe)) {
+			if (socketpair(AF_UNIX, SOCK_DGRAM, 0, uwsgi.shared->worker_req_log_pipe)) {
 #endif
-			uwsgi_error("socketpair()\n");
-			exit(1);
+				uwsgi_error("create_logpipe()/socketpair()\n");
+				exit(1);
+			}
+			fix_logpipe_buf(uwsgi.shared->worker_req_log_pipe);
 		}
 
 		uwsgi_socket_nb(uwsgi.shared->worker_req_log_pipe[0]);
@@ -287,6 +333,8 @@ void logto(char *logfile) {
 
 
 void uwsgi_setup_log() {
+	
+	uwsgi_setup_log_encoders();
 
 	if (uwsgi.daemonize) {
 		if (uwsgi.has_emperor) {
@@ -440,7 +488,6 @@ void uwsgi_logvar_add(struct wsgi_request *wsgi_req, char *key, uint8_t keylen,
 
 void uwsgi_check_logrotate(void) {
 
-	char message[1024];
 	int need_rotation = 0;
 	int need_reopen = 0;
 
@@ -451,7 +498,7 @@ void uwsgi_check_logrotate(void) {
 		uwsgi.shared->logsize = lseek(2, 0, SEEK_CUR);
 	}
 
-	if (uwsgi.log_maxsize > 0 && uwsgi.shared->logsize > uwsgi.log_maxsize) {
+	if (uwsgi.log_maxsize > 0 && (uint64_t) uwsgi.shared->logsize > uwsgi.log_maxsize) {
 		need_rotation = 1;
 	}
 
@@ -464,70 +511,81 @@ void uwsgi_check_logrotate(void) {
 	}
 
 	if (need_rotation) {
-
-		char *rot_name = uwsgi.log_backupname;
-		int need_free = 0;
-		if (rot_name == NULL) {
-			char *ts_str = uwsgi_num2str((int) uwsgi_now());
-			rot_name = uwsgi_concat3(uwsgi.logfile, ".", ts_str);
-			free(ts_str);
-			need_free = 1;
-		}
-		int ret = snprintf(message, 1024, "[%d] logsize: %llu, triggering rotation to %s...\n", (int) uwsgi_now(), (unsigned long long) uwsgi.shared->logsize, rot_name);
-		if (ret > 0) {
-			if (write(uwsgi.original_log_fd, message, ret) != ret) {
-				// very probably this will never be printed
-				uwsgi_error("write()");
-			}
-		}
-		if (rename(uwsgi.logfile, rot_name) == 0) {
-			// reopen logfile dup'it and eventually gracefully reload workers;
-			int fd = open(uwsgi.logfile, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP);
-			if (fd < 0) {
-				uwsgi_error_open(uwsgi.logfile);
-				grace_them_all(0);
-			}
-			else {
-				if (dup2(fd, uwsgi.original_log_fd) < 0) {
-					uwsgi_error("dup2()");
-					grace_them_all(0);
-				}
-				close(fd);
-			}
-		}
-		else {
-			uwsgi_error("unable to rotate log: rename()");
-		}
-		if (need_free)
-			free(rot_name);
+		uwsgi_log_rotate();
 	}
 	else if (need_reopen) {
-		int ret = snprintf(message, 1024, "[%d] logsize: %llu, triggering log-reopen...\n", (int) uwsgi_now(), (unsigned long long) uwsgi.shared->logsize);
-		if (ret > 0) {
-			if (write(uwsgi.original_log_fd, message, ret) != ret) {
-				// very probably this will never be printed
-				uwsgi_error("write()");
-			}
-		}
-
-		// reopen logfile;
-		close(uwsgi.original_log_fd);
-		uwsgi.original_log_fd = open(uwsgi.logfile, O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP);
-		if (uwsgi.original_log_fd < 0) {
-			uwsgi_error_open(uwsgi.logfile);
-			grace_them_all(0);
-		}
-		ret = snprintf(message, 1024, "[%d] %s reopened.\n", (int) uwsgi_now(), uwsgi.logfile);
-		if (ret > 0) {
-			if (write(uwsgi.original_log_fd, message, ret) != ret) {
-				// very probably this will never be printed
-				uwsgi_error("write()");
-			}
-		}
-		uwsgi.shared->logsize = lseek(uwsgi.original_log_fd, 0, SEEK_CUR);
+		uwsgi_log_reopen();
 	}
 }
 
+void uwsgi_log_rotate() {
+	char message[1024];
+	if (!uwsgi.logfile) return;
+	char *rot_name = uwsgi.log_backupname;
+                int need_free = 0;
+                if (rot_name == NULL) {
+                        char *ts_str = uwsgi_num2str((int) uwsgi_now());
+                        rot_name = uwsgi_concat3(uwsgi.logfile, ".", ts_str);
+                        free(ts_str);
+                        need_free = 1;
+                }
+                int ret = snprintf(message, 1024, "[%d] logsize: %llu, triggering rotation to %s...\n", (int) uwsgi_now(), (unsigned long long) uwsgi.shared->logsize, rot_name);
+                if (ret > 0) {
+                        if (write(uwsgi.original_log_fd, message, ret) != ret) {
+                                // very probably this will never be printed
+                                uwsgi_error("write()");
+                        }
+                }
+                if (rename(uwsgi.logfile, rot_name) == 0) {
+                        // reopen logfile dup'it and eventually gracefully reload workers;
+                        int fd = open(uwsgi.logfile, O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP);
+                        if (fd < 0) {
+                                uwsgi_error_open(uwsgi.logfile);
+                                grace_them_all(0);
+                        }
+                        else {
+                                if (dup2(fd, uwsgi.original_log_fd) < 0) {
+                                        uwsgi_error("dup2()");
+                                        grace_them_all(0);
+                                }
+                                close(fd);
+                        }
+                }
+                else {
+                        uwsgi_error("unable to rotate log: rename()");
+                }
+                if (need_free)
+                        free(rot_name);
+}
+
+void uwsgi_log_reopen() {
+	char message[1024];
+	if (!uwsgi.logfile) return;
+	int ret = snprintf(message, 1024, "[%d] logsize: %llu, triggering log-reopen...\n", (int) uwsgi_now(), (unsigned long long) uwsgi.shared->logsize);
+        if (ret > 0) {
+                        if (write(uwsgi.original_log_fd, message, ret) != ret) {
+                                // very probably this will never be printed
+                                uwsgi_error("write()");
+                        }
+                }
+
+                // reopen logfile;
+                close(uwsgi.original_log_fd);
+                uwsgi.original_log_fd = open(uwsgi.logfile, O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP);
+                if (uwsgi.original_log_fd < 0) {
+                        uwsgi_error_open(uwsgi.logfile);
+                        grace_them_all(0);
+                }
+                ret = snprintf(message, 1024, "[%d] %s reopened.\n", (int) uwsgi_now(), uwsgi.logfile);
+                if (ret > 0) {
+                        if (write(uwsgi.original_log_fd, message, ret) != ret) {
+                                // very probably this will never be printed
+                                uwsgi_error("write()");
+                        }
+                }
+                uwsgi.shared->logsize = lseek(uwsgi.original_log_fd, 0, SEEK_CUR);
+}
+
 
 void log_request(struct wsgi_request *wsgi_req) {
 
@@ -616,7 +674,7 @@ void uwsgi_logit_simple(struct wsgi_request *wsgi_req) {
 			break;	
 	}
 
-#ifdef __sun__
+#if defined(__sun__) && !defined(__clang__)
 	ctime_r((const time_t *) &wsgi_req->start_of_request_in_sec, time_request, 26);
 #else
 	ctime_r((const time_t *) &wsgi_req->start_of_request_in_sec, time_request);
@@ -922,6 +980,12 @@ void uwsgi_logit_lf(struct wsgi_request *wsgi_req) {
 				uwsgi.logvectors[wsgi_req->async_id][pos].iov_len = 0;
 			}
 		}
+		// metric
+		else if (logchunk->type == 4) {
+			int64_t metric = uwsgi_metric_get(logchunk->ptr, NULL);
+			uwsgi.logvectors[wsgi_req->async_id][pos].iov_base = uwsgi_64bit2str(metric);
+			uwsgi.logvectors[wsgi_req->async_id][pos].iov_len = strlen(uwsgi.logvectors[wsgi_req->async_id][pos].iov_base);
+		}
 
 		if (uwsgi.logvectors[wsgi_req->async_id][pos].iov_len == 0 && logchunk->type != 0) {
 			uwsgi.logvectors[wsgi_req->async_id][pos].iov_base = (char *) empty_var;
@@ -1035,7 +1099,7 @@ static ssize_t uwsgi_lf_epoch(struct wsgi_request * wsgi_req, char **buf) {
 
 static ssize_t uwsgi_lf_ctime(struct wsgi_request * wsgi_req, char **buf) {
 	*buf = uwsgi_malloc(26);
-#ifdef __sun__
+#if defined(__sun__) && !defined(__clang__)
 	ctime_r((const time_t *) &wsgi_req->start_of_request_in_sec, *buf, 26);
 #else
 	ctime_r((const time_t *) &wsgi_req->start_of_request_in_sec, *buf);
@@ -1060,6 +1124,19 @@ static ssize_t uwsgi_lf_ltime(struct wsgi_request * wsgi_req, char **buf) {
 	return ret;
 }
 
+static ssize_t uwsgi_lf_ftime(struct wsgi_request * wsgi_req, char **buf) {
+	if (!uwsgi.log_strftime) {
+		return uwsgi_lf_ltime(wsgi_req, buf);
+	}
+	*buf = uwsgi_malloc(64);
+	time_t now = wsgi_req->start_of_request / 1000000;
+	size_t ret = strftime(*buf, 64, uwsgi.log_strftime, localtime(&now));
+	if (ret == 0) {
+		*buf[0] = 0;
+		return 0;
+	}
+	return ret;
+}
 
 static ssize_t uwsgi_lf_micros(struct wsgi_request * wsgi_req, char **buf) {
 	*buf = uwsgi_num2str(wsgi_req->end_of_request - wsgi_req->start_of_request);
@@ -1160,6 +1237,7 @@ void uwsgi_add_logchunk(int variable, int pos, char *ptr, size_t len) {
 	   1 -> offsetof variable
 	   2 -> logvar
 	   3 -> func
+	   4 -> metric
 	 */
 
 	logchunk->type = variable;
@@ -1246,6 +1324,11 @@ void uwsgi_add_logchunk(int variable, int pos, char *ptr, size_t len) {
 			logchunk->func = uwsgi_lf_ltime;
 			logchunk->free = 1;
 		}
+		else if (!uwsgi_strncmp(ptr, len, "ftime", 5)) {
+			logchunk->type = 3;
+			logchunk->func = uwsgi_lf_ftime;
+			logchunk->free = 1;
+		}
 		else if (!uwsgi_strncmp(ptr, len, "ctime", 5)) {
 			logchunk->type = 3;
 			logchunk->func = uwsgi_lf_ctime;
@@ -1321,6 +1404,11 @@ void uwsgi_add_logchunk(int variable, int pos, char *ptr, size_t len) {
 			logchunk->func = uwsgi_lf_headers;
 			logchunk->free = 1;
 		}
+		else if (!uwsgi_starts_with(ptr, len, "metric.", 7)) {
+			logchunk->type = 4;
+			logchunk->ptr = uwsgi_concat2n(ptr+7, len - 7, "", 0);
+			logchunk->free = 1;
+		}
 		// logvar
 		else {
 			logchunk->type = 2;
@@ -1328,6 +1416,45 @@ void uwsgi_add_logchunk(int variable, int pos, char *ptr, size_t len) {
 	}
 }
 
+static void uwsgi_log_func_do(struct uwsgi_string_list *encoders, struct uwsgi_logger *ul, char *msg, size_t len) {
+	struct uwsgi_string_list *usl = encoders;
+	// note: msg must not be freed !!!
+	char *new_msg = msg;
+	size_t new_msg_len = len;
+	while(usl) {
+		struct uwsgi_log_encoder *ule = (struct uwsgi_log_encoder *) usl->custom_ptr;
+		if (ule->use_for) {
+			if (ul && ul->id) {
+				if (strcmp(ule->use_for, ul->id)) {
+					goto next;
+				}
+			}
+			else {
+				goto next;
+			}
+		}
+		size_t rlen = 0;
+		char *buf = ule->func(ule, new_msg, new_msg_len, &rlen);
+		if (new_msg != msg) {
+                	free(new_msg);
+        	}
+		new_msg = buf;
+		new_msg_len = rlen;
+next:
+		usl = usl->next;
+	}
+	if (ul) {
+		ul->func(ul, new_msg, new_msg_len);
+	}
+	else {
+		new_msg_len = (size_t) write(uwsgi.original_log_fd, new_msg, new_msg_len);
+	}
+	if (new_msg != msg) {
+		free(new_msg);
+	}
+
+}
+
 int uwsgi_master_log(void) {
 
         ssize_t rlen = read(uwsgi.shared->worker_log_pipe[0], uwsgi.log_master_buf, uwsgi.log_master_bufsize);
@@ -1361,7 +1488,7 @@ int uwsgi_master_log(void) {
                         if (uwsgi_regexp_match(url->pattern, url->pattern_extra, uwsgi.log_master_buf, rlen) >= 0) {
                                 struct uwsgi_logger *ul_route = (struct uwsgi_logger *) url->custom_ptr;
                                 if (ul_route) {
-                                        ul_route->func(ul_route, uwsgi.log_master_buf, rlen);
+					uwsgi_log_func_do(uwsgi.requested_log_encoders, ul_route, uwsgi.log_master_buf, rlen);
                                         finish = 1;
                                 }
                         }
@@ -1379,14 +1506,14 @@ int uwsgi_master_log(void) {
                         if (ul->id) {
                                 goto next;
                         }
-                        ul->func(ul, uwsgi.log_master_buf, rlen);
+                        uwsgi_log_func_do(uwsgi.requested_log_encoders, ul, uwsgi.log_master_buf, rlen);
                         raw_log = 0;
 next:
                         ul = ul->next;
                 }
 
                 if (raw_log) {
-                        rlen = write(uwsgi.original_log_fd, uwsgi.log_master_buf, rlen);
+			uwsgi_log_func_do(uwsgi.requested_log_encoders, NULL, uwsgi.log_master_buf, rlen);
                 }
                 return 0;
         }
@@ -1405,7 +1532,7 @@ int uwsgi_master_req_log(void) {
                         if (uwsgi_regexp_match(url->pattern, url->pattern_extra, uwsgi.log_master_buf, rlen) >= 0) {
                                 struct uwsgi_logger *ul_route = (struct uwsgi_logger *) url->custom_ptr;
                                 if (ul_route) {
-                                        ul_route->func(ul_route, uwsgi.log_master_buf, rlen);
+                                        uwsgi_log_func_do(uwsgi.requested_log_req_encoders, ul_route, uwsgi.log_master_buf, rlen);
                                         finish = 1;
                                 }
                         }
@@ -1423,14 +1550,14 @@ int uwsgi_master_req_log(void) {
                         if (ul->id) {
                                 goto next;
                         }
-                        ul->func(ul, uwsgi.log_master_buf, rlen);
+                        uwsgi_log_func_do(uwsgi.requested_log_req_encoders, ul, uwsgi.log_master_buf, rlen);
                         raw_log = 0;
 next:
                         ul = ul->next;
                 }
 
                 if (raw_log) {
-                        rlen = write(uwsgi.original_log_fd, uwsgi.log_master_buf, rlen);
+			uwsgi_log_func_do(uwsgi.requested_log_req_encoders, NULL, uwsgi.log_master_buf, rlen);
                 }
                 return 0;
         }
@@ -1493,3 +1620,374 @@ void uwsgi_threaded_logger_spawn() {
 	}
 }
 
+void uwsgi_register_log_encoder(char *name, char *(*func)(struct uwsgi_log_encoder *, char *, size_t, size_t *)) {
+	struct uwsgi_log_encoder *old_ule = NULL, *ule = uwsgi.log_encoders;
+
+	while(ule) {
+		if (!strcmp(ule->name, name)) {
+			ule->func = func;
+			return;
+		}
+		old_ule = ule;
+		ule = ule->next;
+	}
+
+	ule = uwsgi_calloc(sizeof(struct uwsgi_log_encoder));
+	ule->name = name;
+	ule->func = func;
+
+	if (old_ule) {
+		old_ule->next = ule;
+	}
+	else {
+		uwsgi.log_encoders = ule;
+	}
+}
+
+struct uwsgi_log_encoder *uwsgi_log_encoder_by_name(char *name) {
+	struct uwsgi_log_encoder *ule = uwsgi.log_encoders;
+	while(ule) {
+		if (!strcmp(name, ule->name)) return ule;
+		ule = ule->next;
+	}
+	return NULL;
+}
+
+void uwsgi_setup_log_encoders() {
+	struct uwsgi_string_list *usl = NULL;
+	uwsgi_foreach(usl, uwsgi.requested_log_encoders) {
+		char *space = strchr(usl->value, ' ');
+		if (space) *space = 0;
+		char *use_for = strchr(usl->value, ':');
+		if (use_for) *use_for = 0;
+		struct uwsgi_log_encoder *ule = uwsgi_log_encoder_by_name(usl->value);
+		if (!ule) {
+			uwsgi_log("log encoder \"%s\" not found\n", usl->value);
+			exit(1);
+		}
+		struct uwsgi_log_encoder *ule2 = uwsgi_malloc(sizeof(struct uwsgi_log_encoder));
+		memcpy(ule2, ule, sizeof(struct uwsgi_log_encoder)); 
+		if (use_for) {
+			ule2->use_for = uwsgi_str(use_for+1);
+			*use_for = ':';
+		}
+		// we use a copy
+		if (space) {
+			*space = ' ';
+			ule2->args = uwsgi_str(space+1);
+		}
+		else {
+			ule2->args = uwsgi_str("");
+		}
+
+		usl->custom_ptr = ule2;
+		uwsgi_log("[log-encoder] registered %s\n", usl->value);
+	}
+
+	uwsgi_foreach(usl, uwsgi.requested_log_req_encoders) {
+                char *space = strchr(usl->value, ' ');
+                if (space) *space = 0;
+		char *use_for = strchr(usl->value, ':');
+		if (use_for) *use_for = 0;
+                struct uwsgi_log_encoder *ule = uwsgi_log_encoder_by_name(usl->value);
+                if (!ule) {
+                        uwsgi_log("log encoder \"%s\" not found\n", usl->value);
+                        exit(1);
+                }
+		struct uwsgi_log_encoder *ule2 = uwsgi_malloc(sizeof(struct uwsgi_log_encoder));
+                memcpy(ule2, ule, sizeof(struct uwsgi_log_encoder));
+                if (use_for) {
+			ule2->use_for = uwsgi_str(use_for+1);
+                        *use_for = ':';
+                }
+                // we use a copy
+                if (space) {
+                        *space = ' ';
+                        ule2->args = uwsgi_str(space+1);
+                }
+                else {
+                        ule2->args = uwsgi_str("");
+                }
+                usl->custom_ptr = ule2;
+		uwsgi_log("[log-req-encoder] registered %s\n", usl->value);
+        }
+}
+
+#ifdef UWSGI_ZLIB
+static char *uwsgi_log_encoder_gzip(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+	struct uwsgi_buffer *ub = uwsgi_gzip(msg, len);
+	if (!ub) return NULL;
+	*rlen = ub->pos;
+	// avoid destruction
+	char *buf = ub->buf;
+	ub->buf = NULL;
+	uwsgi_buffer_destroy(ub);
+	return buf;
+}
+
+static char *uwsgi_log_encoder_compress(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+	size_t c_len = (size_t) compressBound(len);
+	uLongf destLen = c_len;
+	char *buf = uwsgi_malloc(c_len);
+	if (compress((Bytef *) buf, &destLen, (Bytef *)msg, (uLong) len) == Z_OK) {
+		*rlen = destLen;
+		return buf;
+	}
+	free(buf);
+	return NULL;
+}
+#endif
+
+/*
+
+really fast encoder adding only a prefix
+
+*/
+static char *uwsgi_log_encoder_prefix(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+	char *buf = NULL;
+	struct uwsgi_buffer *ub = uwsgi_buffer_new(len + strlen(ule->args));
+	if (uwsgi_buffer_append(ub, ule->args, strlen(ule->args))) goto end;
+	if (uwsgi_buffer_append(ub, msg, len)) goto end;
+	*rlen = ub->pos;
+	buf = ub->buf;
+	ub->buf = NULL;
+end:
+	uwsgi_buffer_destroy(ub);
+	return buf;
+}
+
+/*
+
+really fast encoder adding only a newline
+
+*/
+static char *uwsgi_log_encoder_nl(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+        char *buf = NULL;
+        struct uwsgi_buffer *ub = uwsgi_buffer_new(len + 1);
+        if (uwsgi_buffer_append(ub, msg, len)) goto end;
+        if (uwsgi_buffer_byte(ub, '\n')) goto end;
+        *rlen = ub->pos;
+        buf = ub->buf;
+        ub->buf = NULL;
+end:
+        uwsgi_buffer_destroy(ub);
+        return buf;
+}
+
+/*
+
+really fast encoder adding only a suffix
+
+*/
+static char *uwsgi_log_encoder_suffix(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+        char *buf = NULL;
+        struct uwsgi_buffer *ub = uwsgi_buffer_new(len + strlen(ule->args));
+        if (uwsgi_buffer_append(ub, msg, len)) goto end;
+        if (uwsgi_buffer_append(ub, ule->args, strlen(ule->args))) goto end;
+        *rlen = ub->pos;
+        buf = ub->buf;
+        ub->buf = NULL;
+end:
+        uwsgi_buffer_destroy(ub);
+        return buf;
+}
+
+
+
+void uwsgi_log_encoder_parse_vars(struct uwsgi_log_encoder *ule) {
+		char *ptr = ule->args;
+		size_t remains = strlen(ptr);
+		char *base = ptr;
+		size_t base_len = 0;
+		char *var = NULL;
+		size_t var_len = 0;
+		int status = 0; // 1 -> $ 2-> { end -> }
+		while(remains--) {
+			char b = *ptr++;
+			if (status == 1) {
+				if (b == '{') {
+					status = 2;
+					continue;
+				}
+				base_len+=2;
+				status = 0;
+				continue;
+			}
+			else if (status == 2) {
+				if (b == '}') {
+					status = 0;
+					uwsgi_string_new_list((struct uwsgi_string_list **) &ule->data, uwsgi_concat2n(base, base_len, "", 0));
+					struct uwsgi_string_list *usl = uwsgi_string_new_list((struct uwsgi_string_list **) &ule->data, uwsgi_concat2n(var, var_len, "", 0));
+					usl->custom = 1;
+					var = NULL;
+					var_len = 0;
+					base = NULL;
+					base_len = 0;
+					continue;
+				}
+				if (!var) var = (ptr-1);
+				var_len++;
+				continue;
+			}
+			// status == 0
+			if (b == '$') {
+				status = 1;
+			}
+			else {
+				if (!base) base = (ptr-1);
+				base_len++;
+			}
+		}
+
+		if (base) {
+			if (status == 1) {
+				base_len+=2;
+			}
+			else if (status == 2) {
+				base_len+=3;
+			}
+			uwsgi_string_new_list((struct uwsgi_string_list **) &ule->data, uwsgi_concat2n(base, base_len, "", 0));
+		}
+}
+
+/*
+        // format: foo ${var} bar
+        msg (the logline)
+        msgnl (the logline with newline)
+        unix (the time_t value)
+        micros (current microseconds)
+        strftime (strftime)
+*/
+static char *uwsgi_log_encoder_format(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+	
+	if (!ule->configured) {
+		uwsgi_log_encoder_parse_vars(ule);
+		ule->configured = 1;
+	}
+
+	struct uwsgi_buffer *ub = uwsgi_buffer_new(strlen(ule->args) + len);
+	struct uwsgi_string_list *usl = (struct uwsgi_string_list *) ule->data;
+	char *buf = NULL;
+	while(usl) {
+		if (usl->custom) {
+			if (!uwsgi_strncmp(usl->value, usl->len, "msg", 3)) {
+				if (msg[len-1] == '\n') {
+					if (uwsgi_buffer_append(ub, msg, len-1)) goto end;
+				}
+				else {
+					if (uwsgi_buffer_append(ub, msg, len)) goto end;
+				}
+			}
+			else if (!uwsgi_strncmp(usl->value, usl->len, "msgnl", 5)) {
+				if (uwsgi_buffer_append(ub, msg, len)) goto end;
+			}
+			else if (!uwsgi_strncmp(usl->value, usl->len, "unix", 4)) {
+				if (uwsgi_buffer_num64(ub, uwsgi_now())) goto end;
+			}
+			else if (!uwsgi_strncmp(usl->value, usl->len, "micros", 6)) {
+				if (uwsgi_buffer_num64(ub, uwsgi_micros())) goto end;
+			}
+			else if (!uwsgi_starts_with(usl->value, usl->len, "strftime:", 9)) {
+				char sftime[64];
+                                time_t now = uwsgi_now();
+				char *buf = uwsgi_concat2n(usl->value+9, usl->len-9,"", 0);
+                                int strftime_len = strftime(sftime, 64, buf, localtime(&now));
+				free(buf);
+				if (strftime_len > 0) {
+					if (uwsgi_buffer_append(ub, sftime, strftime_len)) goto end;
+				}
+			}
+		}
+		else {
+			if (uwsgi_buffer_append(ub, usl->value, usl->len)) goto end;
+		}
+		usl = usl->next;
+	}
+	buf = ub->buf;
+	*rlen = ub->pos;
+	ub->buf = NULL;
+end:
+	uwsgi_buffer_destroy(ub);
+	return buf;
+}
+
+static char *uwsgi_log_encoder_json(struct uwsgi_log_encoder *ule, char *msg, size_t len, size_t *rlen) {
+
+        if (!ule->configured) {
+                uwsgi_log_encoder_parse_vars(ule);
+                ule->configured = 1;
+        }
+
+        struct uwsgi_buffer *ub = uwsgi_buffer_new(strlen(ule->args) + len);
+        struct uwsgi_string_list *usl = (struct uwsgi_string_list *) ule->data;
+        char *buf = NULL;
+        while(usl) {
+                if (usl->custom) {
+                        if (!uwsgi_strncmp(usl->value, usl->len, "msg", 3)) {
+				size_t msg_len = len;
+                                if (msg[len-1] == '\n') msg_len--;
+				char *e_json = uwsgi_malloc(msg_len * 2);
+				escape_json(msg, msg_len, e_json);
+				if (uwsgi_buffer_append(ub, e_json, strlen(e_json))){
+                                	free(e_json);
+                                        goto end;
+                                }
+                                free(e_json);
+                        }
+                        else if (!uwsgi_strncmp(usl->value, usl->len, "msgnl", 5)) {
+				char *e_json = uwsgi_malloc(len * 2);
+                                escape_json(msg, len, e_json);
+                                if (uwsgi_buffer_append(ub, e_json, strlen(e_json))){
+                                        free(e_json);
+                                        goto end;
+                                }
+                                free(e_json);
+                        }
+                        else if (!uwsgi_strncmp(usl->value, usl->len, "unix", 4)) {
+                                if (uwsgi_buffer_num64(ub, uwsgi_now())) goto end;
+                        }
+                        else if (!uwsgi_strncmp(usl->value, usl->len, "micros", 6)) {
+                                if (uwsgi_buffer_num64(ub, uwsgi_micros())) goto end;
+                        }
+                        else if (!uwsgi_starts_with(usl->value, usl->len, "strftime:", 9)) {
+                                char sftime[64];
+                                time_t now = uwsgi_now();
+                                char *buf = uwsgi_concat2n(usl->value+9, usl->len-9, "", 0);
+                                int strftime_len = strftime(sftime, 64, buf, localtime(&now));
+                                free(buf);
+                                if (strftime_len > 0) {
+					char *e_json = uwsgi_malloc(strftime_len * 2);
+					escape_json(sftime, strftime_len, e_json);
+                                        if (uwsgi_buffer_append(ub, e_json, strlen(e_json))){
+						free(e_json);
+						goto end;
+					}
+					free(e_json);
+                                }
+                        }
+                }
+                else {
+                        if (uwsgi_buffer_append(ub, usl->value, usl->len)) goto end;
+                }
+                usl = usl->next;
+        }
+        buf = ub->buf;
+        *rlen = ub->pos;
+        ub->buf = NULL;
+end:
+        uwsgi_buffer_destroy(ub);
+        return buf;
+}
+
+
+void uwsgi_log_encoders_register_embedded() {
+	uwsgi_register_log_encoder("prefix", uwsgi_log_encoder_prefix);
+	uwsgi_register_log_encoder("suffix", uwsgi_log_encoder_suffix);
+	uwsgi_register_log_encoder("nl", uwsgi_log_encoder_nl);
+	uwsgi_register_log_encoder("format", uwsgi_log_encoder_format);
+	uwsgi_register_log_encoder("json", uwsgi_log_encoder_json);
+#ifdef UWSGI_ZLIB
+	uwsgi_register_log_encoder("gzip", uwsgi_log_encoder_gzip);
+	uwsgi_register_log_encoder("compress", uwsgi_log_encoder_compress);
+#endif
+}

core/master.c

@@ -2,6 +2,32 @@
 
 extern struct uwsgi_server uwsgi;
 
+void uwsgi_update_load_counters() {
+
+	int i;
+	uint64_t busy_workers = 0;
+	uint64_t idle_workers = 0;
+
+        for (i = 1; i <= uwsgi.numproc; i++) {
+                if (uwsgi.workers[i].cheaped == 0 && uwsgi.workers[i].pid > 0) {
+                        if (uwsgi_worker_is_busy(i) == 0) {
+				idle_workers++;
+			}
+			else {
+				busy_workers++;
+			}
+                }
+        }
+
+	if (busy_workers >= (uint64_t) uwsgi.numproc) {
+		ushared->overloaded++;
+	}
+
+	ushared->busy_workers = busy_workers;
+	ushared->idle_workers = idle_workers;
+
+}
+
 void uwsgi_restore_auto_snapshot(int signum) {
 
 	if (uwsgi.workers[1].snapshot > 0) {
@@ -32,24 +58,25 @@ void uwsgi_unblock_signal(int signum) {
 }
 
 void uwsgi_master_manage_udp(int udp_fd) {
+	char buf[4096];
 	struct sockaddr_in udp_client;
 	char udp_client_addr[16];
 	int i;
 
 	socklen_t udp_len = sizeof(udp_client);
-	ssize_t rlen = recvfrom(udp_fd, uwsgi.wsgi_req->buffer, uwsgi.buffer_size, 0, (struct sockaddr *) &udp_client, &udp_len);
+	ssize_t rlen = recvfrom(udp_fd, buf, 4096, 0, (struct sockaddr *) &udp_client, &udp_len);
 
 	if (rlen < 0) {
-		uwsgi_error("recvfrom()");
+		uwsgi_error("uwsgi_master_manage_udp()/recvfrom()");
 	}
 	else if (rlen > 0) {
 
 		memset(udp_client_addr, 0, 16);
 		if (inet_ntop(AF_INET, &udp_client.sin_addr.s_addr, udp_client_addr, 16)) {
-			if (uwsgi.wsgi_req->buffer[0] == UWSGI_MODIFIER_MULTICAST_ANNOUNCE) {
+			if (buf[0] == UWSGI_MODIFIER_MULTICAST_ANNOUNCE) {
 			}
-			else if (uwsgi.wsgi_req->buffer[0] == 0x30 && uwsgi.snmp) {
-				manage_snmp(udp_fd, (uint8_t *) uwsgi.wsgi_req->buffer, rlen, &udp_client);
+			else if (buf[0] == 0x30 && uwsgi.snmp) {
+				manage_snmp(udp_fd, (uint8_t *) buf, rlen, &udp_client);
 			}
 			else {
 
@@ -57,7 +84,7 @@ void uwsgi_master_manage_udp(int udp_fd) {
 				int udp_managed = 0;
 				for (i = 0; i < 256; i++) {
 					if (uwsgi.p[i]->manage_udp) {
-						if (uwsgi.p[i]->manage_udp(udp_client_addr, udp_client.sin_port, uwsgi.wsgi_req->buffer, rlen)) {
+						if (uwsgi.p[i]->manage_udp(udp_client_addr, udp_client.sin_port, buf, rlen)) {
 							udp_managed = 1;
 							break;
 						}
@@ -66,49 +93,17 @@ void uwsgi_master_manage_udp(int udp_fd) {
 
 				// else a simple udp logger
 				if (!udp_managed) {
-					uwsgi_log("[udp:%s:%d] %.*s", udp_client_addr, ntohs(udp_client.sin_port), (int) rlen, uwsgi.wsgi_req->buffer);
+					uwsgi_log("[udp:%s:%d] %.*s", udp_client_addr, ntohs(udp_client.sin_port), (int) rlen, buf);
 				}
 			}
 		}
 		else {
-			uwsgi_error("inet_ntop()");
+			uwsgi_error("uwsgi_master_manage_udp()/inet_ntop()");
 		}
 
 	}
 }
 
-void uwsgi_master_manage_emperor() {
-	char byte;
-	ssize_t rlen = read(uwsgi.emperor_fd, &byte, 1);
-	if (rlen > 0) {
-		uwsgi_log_verbose("received message %d from emperor\n", byte);
-		// remove me
-		if (byte == 0) {
-			close(uwsgi.emperor_fd);
-			if (!uwsgi.status.brutally_reloading)
-				kill_them_all(0);
-		}
-		// reload me
-		else if (byte == 1) {
-			// un-lazy the stack to trigger a real reload
-			uwsgi.lazy = 0;
-			uwsgi_block_signal(SIGHUP);
-			grace_them_all(0);
-			uwsgi_unblock_signal(SIGHUP);
-		}
-	}
-	else {
-		uwsgi_log("lost connection with my emperor !!!\n");
-		close(uwsgi.emperor_fd);
-		if (!uwsgi.status.brutally_reloading)
-			kill_them_all(0);
-		sleep(2);
-		exit(1);
-	}
-
-}
-
-
 void uwsgi_master_restore_snapshot() {
 	int i, waitpid_status;
 	uwsgi_log("[snapshot] restoring workers...\n");
@@ -222,8 +217,8 @@ int uwsgi_get_tcp_info(int fd) {
 #elif defined(__FreeBSD__)
 		if (!uwsgi.shared->ti.__tcpi_sacked) {
 #endif
-                        return 0;
-                }
+			return 0;
+		}
 
 #if defined(__linux__)
 		uwsgi.shared->load = (uint64_t) uwsgi.shared->ti.tcpi_unacked;
@@ -242,12 +237,12 @@ int uwsgi_get_tcp_info(int fd) {
 					uwsgi_error("write()");
 				}
 				else {
-					uwsgi_log("asking emperor for reinforcements (backlog: %llu)...\n", (unsigned long long ) uwsgi.shared->load);
+					uwsgi_log("asking emperor for reinforcements (backlog: %llu)...\n", (unsigned long long) uwsgi.shared->load);
 				}
 			}
 		}
 		if (uwsgi.shared->load >= uwsgi.shared->max_load) {
-			uwsgi_log_verbose("*** uWSGI listen queue of socket %d full !!! (%llu/%llu) ***\n", fd, (unsigned long long ) uwsgi.shared->load, (unsigned long long ) uwsgi.shared->max_load);
+			uwsgi_log_verbose("*** uWSGI listen queue of socket %d full !!! (%llu/%llu) ***\n", fd, (unsigned long long) uwsgi.shared->load, (unsigned long long) uwsgi.shared->max_load);
 			uwsgi.shared->options[UWSGI_OPTION_BACKLOG_ERRORS]++;
 		}
 
@@ -306,7 +301,6 @@ int master_loop(char **argv, char **environ) {
 	struct uwsgi_rb_timer *min_timeout;
 	struct uwsgi_rbtree *rb_timers = uwsgi_init_rb_timer();
 
-
 	if (uwsgi.procname_master) {
 		uwsgi_set_processname(uwsgi.procname_master);
 	}
@@ -346,6 +340,11 @@ int master_loop(char **argv, char **environ) {
 #endif
 	event_queue_add_fd_read(uwsgi.master_queue, uwsgi.shared->worker_signal_pipe[0]);
 
+	if (uwsgi.master_fifo) {
+		uwsgi.master_fifo_fd = uwsgi_master_fifo();
+		event_queue_add_fd_read(uwsgi.master_queue, uwsgi.master_fifo_fd);
+	}
+
 	if (uwsgi.spoolers) {
 		event_queue_add_fd_read(uwsgi.master_queue, uwsgi.shared->spooler_signal_pipe[0]);
 	}
@@ -374,6 +373,9 @@ int master_loop(char **argv, char **environ) {
 #ifdef UWSGI_SSL
 	uwsgi_start_legions();
 #endif
+	uwsgi_metrics_start_collector();
+
+	uwsgi_add_reload_fds();
 
 	uwsgi_cache_start_sweepers();
 	uwsgi_cache_start_sync_servers();
@@ -381,7 +383,18 @@ int master_loop(char **argv, char **environ) {
 	uwsgi.wsgi_req->buffer = uwsgi.workers[0].cores[0].buffer;
 
 	if (uwsgi.has_emperor) {
-		event_queue_add_fd_read(uwsgi.master_queue, uwsgi.emperor_fd);
+		if (uwsgi.emperor_proxy) {
+			uwsgi.emperor_fd_proxy = bind_to_unix(uwsgi.emperor_proxy, uwsgi.listen_queue, 0, 0);
+			if (uwsgi.emperor_fd_proxy < 0) exit(1);
+			if (chmod(uwsgi.emperor_proxy, S_IRUSR|S_IWUSR)) {
+				uwsgi_error("[emperor-proxy] chmod()");
+				exit(1);
+			}
+			event_queue_add_fd_read(uwsgi.master_queue, uwsgi.emperor_fd_proxy);
+		}
+		else {
+			event_queue_add_fd_read(uwsgi.master_queue, uwsgi.emperor_fd);
+		}
 	}
 
 	if (uwsgi.zerg_server) {
@@ -391,7 +404,7 @@ int master_loop(char **argv, char **environ) {
 	}
 
 	if (uwsgi.stats) {
-		char *tcp_port = strchr(uwsgi.stats, ':');
+		char *tcp_port = strrchr(uwsgi.stats, ':');
 		if (tcp_port) {
 			// disable deferred accept for this socket
 			int current_defer_accept = uwsgi.no_defer_accept;
@@ -475,7 +488,7 @@ int master_loop(char **argv, char **environ) {
 	uwsgi_check_touches(uwsgi.touch_gracefully_stop);
 	// update exec touches
 	struct uwsgi_string_list *usl = uwsgi.touch_exec;
-	while(usl) {
+	while (usl) {
 		char *space = strchr(usl->value, ' ');
 		if (space) {
 			*space = 0;
@@ -485,6 +498,21 @@ int master_loop(char **argv, char **environ) {
 		usl = usl->next;
 	}
 	uwsgi_check_touches(uwsgi.touch_exec);
+	// update signal touches
+	usl = uwsgi.touch_signal;
+	while (usl) {
+		char *space = strchr(usl->value, ' ');
+		if (space) {
+			*space = 0;
+			usl->len = strlen(usl->value);
+			usl->custom_ptr = space + 1;
+		}
+		usl = usl->next;
+	}
+	uwsgi_check_touches(uwsgi.touch_signal);
+
+	// fsmon
+	uwsgi_fsmon_setup();
 
 	// setup cheaper algos (can be stacked)
 	uwsgi.cheaper_algo = uwsgi_cheaper_algo_spare;
@@ -583,8 +611,10 @@ int master_loop(char **argv, char **environ) {
 
 			/* all processes ok, doing status scan after N seconds */
 			check_interval = uwsgi.shared->options[UWSGI_OPTION_MASTER_INTERVAL];
-			if (!check_interval)
+			if (!check_interval) {
 				check_interval = 1;
+				uwsgi.shared->options[UWSGI_OPTION_MASTER_INTERVAL] = 1;
+			}
 
 
 			// add unregistered file monitors
@@ -619,14 +649,14 @@ int master_loop(char **argv, char **environ) {
 
 			if (ushared->rb_timers_cnt > 0) {
 				min_timeout = uwsgi_min_rb_timer(rb_timers, NULL);
-				if (min_timeout == NULL) {
-					check_interval = uwsgi.shared->options[UWSGI_OPTION_MASTER_INTERVAL];
-				}
-				else {
-					check_interval = min_timeout->value - uwsgi_now();
-					if (check_interval <= 0) {
+				if (min_timeout) {
+					int delta = min_timeout->value - uwsgi_now();
+					if (delta <= 0) {
 						expire_rb_timeouts(rb_timers);
-						check_interval = 0;
+					}
+					// if the timer expires before the check_interval, override it
+					else if (delta < check_interval) {
+						check_interval = delta;
 					}
 				}
 			}
@@ -640,6 +670,9 @@ int master_loop(char **argv, char **environ) {
 				}
 			}
 
+			// update load counter
+			uwsgi_update_load_counters();
+
 
 			// check uwsgi-cron table
 			if (ushared->cron_cnt) {
@@ -680,12 +713,15 @@ int master_loop(char **argv, char **environ) {
 			uwsgi_master_check_idle();
 
 			check_interval = uwsgi.shared->options[UWSGI_OPTION_MASTER_INTERVAL];
-			if (!check_interval)
+			if (!check_interval) {
 				check_interval = 1;
+				uwsgi.shared->options[UWSGI_OPTION_MASTER_INTERVAL] = 1;
+			}
 
 
 			// get listen_queue status
 			struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
+			int tmp_queue = 0;
 			while (uwsgi_sock) {
 				if (uwsgi_sock->family == AF_INET) {
 					uwsgi_sock->queue = uwsgi_get_tcp_info(uwsgi_sock->fd);
@@ -697,8 +733,14 @@ int master_loop(char **argv, char **environ) {
 				}
 #endif
 #endif
+
+				if (uwsgi_sock->queue > tmp_queue) {
+					tmp_queue = uwsgi_sock->queue;
+				}
 				uwsgi_sock = uwsgi_sock->next;
 			}
+			// fix queue size on multiple sockets
+			uwsgi.shared->load = tmp_queue;
 
 			// check if some worker has to die (harakiri, evil checks...)
 			uwsgi_master_check_workers_deadline();
@@ -707,6 +749,7 @@ int master_loop(char **argv, char **environ) {
 			uwsgi_master_check_mules_deadline();
 			uwsgi_master_check_spoolers_deadline();
 			uwsgi_master_check_crons_deadline();
+			uwsgi_master_check_mountpoints();
 
 #ifdef __linux__
 #ifdef MADV_MERGEABLE
@@ -717,7 +760,7 @@ int master_loop(char **argv, char **environ) {
 #endif
 
 			// resubscribe every 10 cycles by default
-			if (( (uwsgi.subscriptions || uwsgi.subscriptions2) && ((uwsgi.master_cycles % uwsgi.subscribe_freq) == 0 || uwsgi.master_cycles == 1)) && !uwsgi_instance_is_reloading && !uwsgi_instance_is_dying && !uwsgi.workers[0].suspended) {
+			if (((uwsgi.subscriptions || uwsgi.subscriptions2) && ((uwsgi.master_cycles % uwsgi.subscribe_freq) == 0 || uwsgi.master_cycles == 1)) && !uwsgi_instance_is_reloading && !uwsgi_instance_is_dying && !uwsgi.workers[0].suspended) {
 				uwsgi_subscribe_all(0, 0);
 			}
 
@@ -741,34 +784,34 @@ int master_loop(char **argv, char **environ) {
 				}
 				touched = uwsgi_check_touches(uwsgi.touch_workers_reload);
 				if (touched) {
-                                        uwsgi_log_verbose("*** %s has been touched... workers reload !!! ***\n", touched);
-					uwsgi_block_signal(SIGHUP);
-					for(i=1;i<=uwsgi.numproc;i++) {
-						if (uwsgi.workers[i].pid > 0) {
-							uwsgi_curse(i, SIGHUP);
-						}
-					}
-					uwsgi_unblock_signal(SIGHUP);
-                                        continue;
-                                }
+					uwsgi_log_verbose("*** %s has been touched... workers reload !!! ***\n", touched);
+					uwsgi_reload_workers();
+					continue;
+				}
 				touched = uwsgi_check_touches(uwsgi.touch_chain_reload);
 				if (touched) {
 					if (uwsgi.status.chain_reloading == 0) {
-                                        	uwsgi_log_verbose("*** %s has been touched... chain reload !!! ***\n", touched);
+						uwsgi_log_verbose("*** %s has been touched... chain reload !!! ***\n", touched);
 						uwsgi.status.chain_reloading = 1;
 					}
 					else {
-                                        	uwsgi_log_verbose("*** %s has been touched... but chain reload is already running ***\n", touched);
+						uwsgi_log_verbose("*** %s has been touched... but chain reload is already running ***\n", touched);
 					}
 				}
 
 				// be sure to run it as the last touch check
 				touched = uwsgi_check_touches(uwsgi.touch_exec);
 				if (touched) {
-					if (uwsgi_run_command( touched , NULL, -1) >= 0) {
+					if (uwsgi_run_command(touched, NULL, -1) >= 0) {
 						uwsgi_log_verbose("[uwsgi-touch-exec] running %s\n", touched);
 					}
 				}
+				touched = uwsgi_check_touches(uwsgi.touch_signal);
+				if (touched) {
+					uint8_t signum = atoi(touched);
+					uwsgi_route_signal(signum);
+					uwsgi_log_verbose("[uwsgi-touch-signal] raising %u\n", signum);
+				}
 			}
 
 			continue;
@@ -785,12 +828,18 @@ int master_loop(char **argv, char **environ) {
 		// reload gateways and daemons only on normal workflow (+outworld status)
 		if (!uwsgi_instance_is_reloading && !uwsgi_instance_is_dying) {
 
-			if (uwsgi_master_check_emperor_death(diedpid)) continue;
-			if (uwsgi_master_check_spoolers_death(diedpid)) continue;
-			if (uwsgi_master_check_mules_death(diedpid)) continue;
-			if (uwsgi_master_check_gateways_death(diedpid)) continue;
-			if (uwsgi_master_check_daemons_death(diedpid)) continue;
-			if (uwsgi_master_check_cron_death(diedpid)) continue;
+			if (uwsgi_master_check_emperor_death(diedpid))
+				continue;
+			if (uwsgi_master_check_spoolers_death(diedpid))
+				continue;
+			if (uwsgi_master_check_mules_death(diedpid))
+				continue;
+			if (uwsgi_master_check_gateways_death(diedpid))
+				continue;
+			if (uwsgi_master_check_daemons_death(diedpid))
+				continue;
+			if (uwsgi_master_check_cron_death(diedpid))
+				continue;
 		}
 
 
@@ -855,8 +904,9 @@ next:
 		// ok, if we are reloading or dying, just continue the master loop
 		// as soon as all of the workers have pid == 0, the action (exit, or reload) is triggered
 		if (uwsgi_instance_is_reloading || uwsgi_instance_is_dying) {
-			if (!uwsgi.workers[thewid].cursed_at) uwsgi.workers[thewid].cursed_at = uwsgi_now();
-			uwsgi_log("worker %d buried after %d seconds\n", thewid, (int) (uwsgi_now()-uwsgi.workers[thewid].cursed_at));
+			if (!uwsgi.workers[thewid].cursed_at)
+				uwsgi.workers[thewid].cursed_at = uwsgi_now();
+			uwsgi_log("worker %d buried after %d seconds\n", thewid, (int) (uwsgi_now() - uwsgi.workers[thewid].cursed_at));
 			uwsgi.workers[thewid].cursed_at = 0;
 			continue;
 		}
@@ -875,6 +925,11 @@ next:
 		else if (WIFEXITED(waitpid_status) && WEXITSTATUS(waitpid_status) == UWSGI_QUIET_CODE) {
 			// noop
 		}
+		else if (WIFEXITED(waitpid_status) && WEXITSTATUS(waitpid_status) == UWSGI_BRUTAL_RELOAD_CODE) {
+			uwsgi_log("!!! inconsistent state reported by worker %d (pid: %d) !!!\n", thewid, (int) diedpid);
+			reap_them_all(0);
+			continue;
+		}
 		else if (uwsgi.workers[thewid].manage_next_request) {
 			if (WIFSIGNALED(waitpid_status)) {
 				uwsgi_log("DAMN ! worker %d (pid: %d) died, killed by signal %d :( trying respawn ...\n", thewid, (int) diedpid, (int) WTERMSIG(waitpid_status));
@@ -929,3 +984,34 @@ next:
 
 	// never here
 }
+
+void uwsgi_reload_workers() {
+	int i;
+	uwsgi_block_signal(SIGHUP);
+	for (i = 1; i <= uwsgi.numproc; i++) {
+		if (uwsgi.workers[i].pid > 0) {
+			uwsgi_curse(i, SIGHUP);
+		}
+	}
+	uwsgi_unblock_signal(SIGHUP);
+}
+
+void uwsgi_chain_reload() {
+	if (!uwsgi.status.chain_reloading) {
+		uwsgi_log_verbose("chain reload starting...\n");
+		uwsgi.status.chain_reloading = 1;
+	}
+	else {
+		uwsgi_log_verbose("chain reload already running...\n");
+	}
+}
+
+void uwsgi_brutally_reload_workers() {
+	int i;
+	for (i = 1; i <= uwsgi.numproc; i++) {
+		if (uwsgi.workers[i].pid > 0) {
+			uwsgi_log_verbose("killing worker %d (pid: %d)\n", i, (int) uwsgi.workers[i].pid);
+			uwsgi_curse(i, SIGINT);
+		}
+	}
+}

core/master_checks.c

@@ -35,11 +35,17 @@ int uwsgi_master_check_reload(char **argv) {
 // check for chain reload
 void uwsgi_master_check_chain() {
 	if (!uwsgi.status.chain_reloading) return;
-	if (uwsgi.status.chain_reloading > uwsgi.numproc) {
+	int i;
+	int needed_procs = 0;
+	for(i=1;i<=uwsgi.numproc;i++) {
+                if (uwsgi.workers[i].pid > 0 && uwsgi.workers[i].cheaped == 0) {
+			needed_procs++;
+                }
+        }
+	if (uwsgi.status.chain_reloading > needed_procs) {
 		uwsgi.status.chain_reloading = 0;
                 uwsgi_log_verbose("chain reloading complete\n");
 	}
-	int i;
 	uwsgi_block_signal(SIGHUP);
 	for(i=1;i<=uwsgi.numproc;i++) {
 		if (uwsgi.workers[i].pid > 0 && uwsgi.workers[i].cheaped == 0 && uwsgi.workers[i].cursed_at == 0 && i == uwsgi.status.chain_reloading) {
@@ -112,6 +118,9 @@ void uwsgi_master_check_idle() {
 				if (errno != ECHILD)
 					uwsgi_error("uwsgi_master_check_idle()/waitpid()");
 			}
+			else {
+				uwsgi.workers[i].pid = 0;
+			}
 		}
 		uwsgi_add_sockets_to_queue(uwsgi.master_queue, -1);
 		uwsgi_log("cheap mode enabled: waiting for socket connection...\n");
@@ -197,6 +206,14 @@ void uwsgi_master_check_mules_deadline() {
 				uwsgi.mules[i].harakiri = 0;
 			}
 		}
+		// user harakiri
+		if (uwsgi.mules[i].user_harakiri > 0) {
+                        if (uwsgi.mules[i].user_harakiri < (time_t) uwsgi.current_time) {
+                                uwsgi_log("*** HARAKIRI ON MULE %d (pid: %d) ***\n", i + 1, uwsgi.mules[i].pid);
+                                kill(uwsgi.mules[i].pid, SIGKILL);
+                                uwsgi.mules[i].user_harakiri = 0;
+                        }
+                }
 	}
 }
 
@@ -208,6 +225,11 @@ void uwsgi_master_check_spoolers_deadline() {
 			kill(uspool->pid, SIGKILL);
 			uspool->harakiri = 0;
 		}
+		if (uspool->user_harakiri > 0 && uspool->user_harakiri < (time_t) uwsgi.current_time) {
+                        uwsgi_log("*** HARAKIRI ON THE SPOOLER (pid: %d) ***\n", uspool->pid);
+                        kill(uspool->pid, SIGKILL);
+                        uspool->user_harakiri = 0;
+                }
 		uspool = uspool->next;
 	}
 }
@@ -303,3 +325,14 @@ void uwsgi_master_check_crons_deadline() {
 	}
 }
 
+void uwsgi_master_check_mountpoints() {
+	struct uwsgi_string_list *usl;
+	uwsgi_foreach(usl, uwsgi.mountpoints_check) {
+		if (uwsgi_check_mountpoint(usl->value)) {
+			uwsgi_log_verbose("mountpoint %s failed, triggering detonation...\n", usl->value);
+			uwsgi_nuclear_blast();
+			//never here
+			exit(1);
+		}
+	}
+}

core/master_events.c

@@ -18,6 +18,10 @@ int uwsgi_master_manage_events(int interesting_fd) {
 		}
 	}
 
+	if (uwsgi.master_fifo_fd > -1 && interesting_fd == uwsgi.master_fifo_fd) {
+		return uwsgi_master_fifo_manage(uwsgi.master_fifo_fd);
+	}
+
 	// stats server ?
 	if (uwsgi.stats && uwsgi.stats_fd > -1) {
 		if (interesting_fd == uwsgi.stats_fd) {
@@ -36,12 +40,90 @@ int uwsgi_master_manage_events(int interesting_fd) {
 
 	// emperor event ?
 	if (uwsgi.has_emperor) {
+		if (uwsgi.emperor_fd_proxy > -1 && interesting_fd == uwsgi.emperor_fd_proxy) {
+			uwsgi_master_manage_emperor_proxy();	
+			return 0;
+		}
+
 		if (interesting_fd == uwsgi.emperor_fd) {
 			uwsgi_master_manage_emperor();
 			return 0;
 		}
 	}
 
+	if (uwsgi_fsmon_event(interesting_fd)) {
+                return 0;
+	}
+
+	// reload on fd
+	if (uwsgi.reload_on_fd) {
+		// custom -> fd
+		// custom2 -> len (optional, default 1)
+		// custom_ptr -> log message (optional)
+		struct uwsgi_string_list *usl = uwsgi.reload_on_fd;
+		while(usl) {
+			if (interesting_fd == (int) usl->custom) {
+				char stack_tmp[8];
+				char *tmp = stack_tmp;
+				if (usl->custom2 > 8) {
+					tmp = uwsgi_malloc(usl->custom2);
+				}
+				if (read(interesting_fd, tmp, usl->custom2) <= 0) {
+					uwsgi_error("[reload-on-fd] read()");
+				}
+				if (usl->custom_ptr) {
+					uwsgi_log_verbose("*** fd %d ready: %s ***\n", interesting_fd, usl->custom_ptr);
+				}
+				else {
+					uwsgi_log_verbose("*** fd %d ready !!! ***\n", interesting_fd);
+				}
+                                uwsgi_block_signal(SIGHUP);
+                                grace_them_all(0);
+                                uwsgi_unblock_signal(SIGHUP);				
+				return 0;
+			}
+			usl = usl->next;
+		}
+	}
+
+	// brutal reload on fd
+        if (uwsgi.brutal_reload_on_fd) {
+                // custom -> fd
+                // custom2 -> len (optional, default 1)
+                // custom_ptr -> log message (optional)
+                struct uwsgi_string_list *usl = uwsgi.brutal_reload_on_fd;
+                while(usl) {
+                        if (interesting_fd == (int) usl->custom) {
+				char stack_tmp[8];
+                                char *tmp = stack_tmp;
+                                if (usl->custom2 > 8) {
+                                        tmp = uwsgi_malloc(usl->custom2);
+                                }
+                                if (read(interesting_fd, tmp, usl->custom2) <= 0) {
+                                        uwsgi_error("[brutal-reload-on-fd] read()");
+                                }
+                                if (usl->custom_ptr) {
+                                        uwsgi_log_verbose("*** fd %d ready: %s ***\n", interesting_fd, usl->custom_ptr);
+                                }
+                                else {
+                                        uwsgi_log_verbose("*** fd %d ready !!! ***\n", interesting_fd);
+                                }
+				if (uwsgi.die_on_term) {
+                                	uwsgi_block_signal(SIGQUIT);
+                                	reap_them_all(0);
+                                	uwsgi_unblock_signal(SIGQUIT);
+				}
+				else {
+                                	uwsgi_block_signal(SIGTERM);
+                                	reap_them_all(0);
+                                	uwsgi_unblock_signal(SIGTERM);
+				}
+                                return 0;
+                        }
+                        usl = usl->next;
+                }
+        }
+
 
 	// wakeup from cheap mode ?
 	if (uwsgi.status.is_cheap) {

core/master_utils.c

@@ -115,7 +115,49 @@ int uwsgi_calc_cheaper(void) {
 
 	last_check = now;
 
-	int needed_workers = uwsgi.cheaper_algo();
+	int ignore_algo = 0;
+	int needed_workers = 0;
+
+	// first check if memory usage is not exceeded
+	if (uwsgi.cheaper_rss_limit_soft) {
+		unsigned long long total_rss = 0;
+		int i;
+		int active_workers = 0;
+		for(i=1;i<=uwsgi.numproc;i++) {
+			if (!uwsgi.workers[i].cheaped) {
+				total_rss += uwsgi.workers[i].rss_size;
+				active_workers++;
+			}
+		}
+		if (uwsgi.cheaper_rss_limit_hard && active_workers > 1 && total_rss >= uwsgi.cheaper_rss_limit_hard) {
+			uwsgi_log("cheaper hard rss memory limit exceeded, cheap one of %d workers\n", active_workers);
+			needed_workers = -1;
+			ignore_algo = 1;
+		}
+		else if (total_rss >= uwsgi.cheaper_rss_limit_soft) {
+#ifdef UWSGI_DEBUG
+			uwsgi_log("cheaper soft rss memory limit exceeded, can't spawn more workers\n");
+#endif
+			ignore_algo = 1;
+		}
+	}
+
+	// then check for fifo
+	if (uwsgi.cheaper_fifo_delta != 0) {
+		if (!ignore_algo) {
+			needed_workers = uwsgi.cheaper_fifo_delta;
+			ignore_algo = 1;
+		}
+		uwsgi.cheaper_fifo_delta = 0;
+	}
+
+	// if cheaper limits wants to change worker count, then skip cheaper algo
+	if (!needed_workers) needed_workers = uwsgi.cheaper_algo(!ignore_algo);
+	// safe check to verify if cheaper algo obeyed ignore_algo value
+	if (ignore_algo && needed_workers > 0) {
+		uwsgi_log("BUG! cheaper algo returned %d but it cannot spawn any worker at this time!\n", needed_workers);
+		needed_workers = 0;
+	}
 
 	if (needed_workers > 0) {
 		for (i = 1; i <= uwsgi.numproc; i++) {
@@ -152,6 +194,11 @@ int uwsgi_calc_cheaper(void) {
 	return 1;
 }
 
+// fake algo to allow control with the fifo
+int uwsgi_cheaper_algo_manual(int can_spawn) {
+	return 0;
+}
+
 /*
 
         -- Cheaper, spare algorithm, adapted from old-fashioned spare system --
@@ -187,7 +234,7 @@ int uwsgi_calc_cheaper(void) {
 */
 
 
-int uwsgi_cheaper_algo_spare(void) {
+int uwsgi_cheaper_algo_spare(int can_spawn) {
 
 	int i;
 	static uint64_t overload_count = 0;
@@ -211,7 +258,7 @@ int uwsgi_cheaper_algo_spare(void) {
 healthy:
 
 	// are we overloaded ?
-	if (overload_count > uwsgi.cheaper_overload) {
+	if (can_spawn && overload_count > uwsgi.cheaper_overload) {
 
 #ifdef UWSGI_DEBUG
 		uwsgi_log("overloaded !!!\n");
@@ -279,7 +326,7 @@ healthy:
 
 */
 
-int uwsgi_cheaper_algo_backlog(void) {
+int uwsgi_cheaper_algo_backlog(int can_spawn) {
 
 	int i;
 #ifdef __linux__
@@ -288,7 +335,7 @@ int uwsgi_cheaper_algo_backlog(void) {
 	int backlog = 0;
 #endif
 
-	if (backlog > (int) uwsgi.cheaper_overload) {
+	if (can_spawn && backlog > (int) uwsgi.cheaper_overload) {
 		// activate the first available worker (taking step into account)
 		int decheaped = 0;
 		// search for cheaped workers
@@ -326,23 +373,30 @@ void uwsgi_reload(char **argv) {
 	int i;
 	int waitpid_status;
 
-	// call a series of waitpid to ensure all processes (gateways, mules and daemons) are dead
-	for (i = 0; i < (ushared->gateways_cnt + uwsgi.daemons_cnt + uwsgi.mules_cnt); i++) {
-		waitpid(WAIT_ANY, &waitpid_status, WNOHANG);
+	if (!uwsgi.master_is_reforked) {
+
+		// call a series of waitpid to ensure all processes (gateways, mules and daemons) are dead
+		for (i = 0; i < (ushared->gateways_cnt + uwsgi.daemons_cnt + uwsgi.mules_cnt); i++) {
+			waitpid(WAIT_ANY, &waitpid_status, WNOHANG);
+		}
+
+		// call master cleanup hooks
+		uwsgi_master_cleanup_hooks();
+
+		// call atexit user exec
+		uwsgi_exec_atexit();
+
+		if (uwsgi.exit_on_reload) {
+			uwsgi_log("uWSGI: GAME OVER (insert coin)\n");
+			exit(0);
+		}
+
+		uwsgi_log("binary reloading uWSGI...\n");
+	}
+	else {
+		uwsgi_log("fork()'ing uWSGI...\n");
 	}
 
-	// call master cleanup hooks
-	uwsgi_master_cleanup_hooks();
-
-	// call atexit user exec
-	uwsgi_exec_atexit();
-
-	if (uwsgi.exit_on_reload) {
-		uwsgi_log("uWSGI: GAME OVER (insert coin)\n");
-		exit(0);
-	}
-
-	uwsgi_log("binary reloading uWSGI...\n");
 	uwsgi_log("chdir() to %s\n", uwsgi.cwd);
 	if (chdir(uwsgi.cwd)) {
 		uwsgi_error("chdir()");
@@ -529,6 +583,7 @@ void uwsgi_fixup_fds(int wid, int muleid, struct uwsgi_gateway *ug) {
 			}
 		}
 
+		if (uwsgi.master_fifo_fd > -1) close(uwsgi.master_fifo_fd);
 	}
 
 
@@ -696,8 +751,17 @@ struct uwsgi_stats *uwsgi_master_generate_stats() {
 		while (ud) {
 			if (uwsgi_stats_object_open(us))
 				goto end;
-			if (uwsgi_stats_keyval_comma(us, "cmd", ud->command))
+
+			// allocate 2x the size of original command
+			// in case we need to escape all chars
+			char *cmd = uwsgi_malloc(strlen(ud->command)*2);
+			escape_json(ud->command, strlen(ud->command), cmd);
+			if (uwsgi_stats_keyval_comma(us, "cmd", cmd)) {
+				free(cmd);
 				goto end;
+			}
+			free(cmd);
+
 			if (uwsgi_stats_keylong_comma(us, "pid", (unsigned long long) (ud->pid < 0) ? 0 : ud->pid))
 				goto end;
 			if (uwsgi_stats_keylong(us, "respawns", (unsigned long long) ud->respawns ? 0 : ud->respawns))
@@ -807,6 +871,65 @@ struct uwsgi_stats *uwsgi_master_generate_stats() {
 		goto end;
 	}
 
+	if (uwsgi.has_metrics) {
+		if (uwsgi_stats_key(us, "metrics"))
+                	goto end;
+
+		if (uwsgi_stats_object_open(us))
+			goto end;
+
+		uwsgi_rlock(uwsgi.metrics_lock);
+		struct uwsgi_metric *um = uwsgi.metrics;
+		while(um) {
+        		int64_t um_val = *um->value;
+
+			if (uwsgi_stats_key(us, um->name)) {
+				uwsgi_rwunlock(uwsgi.metrics_lock);
+                		goto end;
+			}
+
+			if (uwsgi_stats_object_open(us)) {
+				uwsgi_rwunlock(uwsgi.metrics_lock);
+                                goto end;
+			}
+
+			if (uwsgi_stats_keylong(us, "type", (long long) um->type)) {
+        			uwsgi_rwunlock(uwsgi.metrics_lock);
+				goto end;
+			} 
+
+			if (uwsgi_stats_comma(us)) {
+        			uwsgi_rwunlock(uwsgi.metrics_lock);
+				goto end;
+			}
+
+			if (uwsgi_stats_keyslong(us, "value", (long long) um_val)) {
+        			uwsgi_rwunlock(uwsgi.metrics_lock);
+				goto end;
+			} 
+
+			if (uwsgi_stats_object_close(us)) {
+                                uwsgi_rwunlock(uwsgi.metrics_lock);
+                                goto end;
+                        }
+
+			um = um->next;
+			if (um) {
+				if (uwsgi_stats_comma(us)) {
+        				uwsgi_rwunlock(uwsgi.metrics_lock);
+					goto end;
+				}
+			}
+		}
+        	uwsgi_rwunlock(uwsgi.metrics_lock);
+
+		if (uwsgi_stats_object_close(us))
+			goto end;
+
+		if (uwsgi_stats_comma(us))
+		goto end;
+	}
+
 	if (uwsgi_stats_key(us, "sockets"))
 		goto end;
 
@@ -1106,8 +1229,13 @@ struct uwsgi_stats *uwsgi_master_generate_stats() {
 			if (uwsgi_stats_keyslong_comma(us, "week", (long long) ucron->week))
 				goto end;
 
-			if (uwsgi_stats_keyval_comma(us, "command", ucron->command))
+			char *cmd = uwsgi_malloc(strlen(ucron->command)*2);
+			escape_json(ucron->command, strlen(ucron->command), cmd);
+			if (uwsgi_stats_keyval_comma(us, "command", cmd)) {
+				free(cmd);
 				goto end;
+			}
+			free(cmd);
 
 			if (uwsgi_stats_keylong_comma(us, "unique", (unsigned long long) ucron->unique))
 				goto end;
@@ -1282,7 +1410,7 @@ end:
 	return NULL;
 }
 
-void uwsgi_register_cheaper_algo(char *name, int (*func) (void)) {
+void uwsgi_register_cheaper_algo(char *name, int (*func) (int)) {
 
 	struct uwsgi_cheaper_algo *uca = uwsgi.cheaper_algos;
 
@@ -1444,3 +1572,80 @@ int uwsgi_cron_task_needs_execution(struct tm *uwsgi_cron_delta, int minute, int
 
 }
 
+static void add_reload_fds(struct uwsgi_string_list *list, char *type) {
+	struct uwsgi_string_list *usl = list;
+	while(usl) {
+		char *strc = uwsgi_str(usl->value);
+		char *space = strchr(strc, ' ');
+		if (space) {
+			*space = 0;
+			usl->custom_ptr = space+1;
+		}
+		char *colon = strchr(strc, ':');
+		if (colon) {
+			*colon = 0;
+			usl->custom2 = strtoul(colon+1, NULL, 10);
+		}
+		usl->custom = strtoul(strc, NULL, 10);
+		if (!usl->custom2) usl->custom2 = 1;
+		event_queue_add_fd_read(uwsgi.master_queue, usl->custom);
+		uwsgi_add_safe_fd(usl->custom);
+		uwsgi_log("added %s reload monitor for fd %d (read size: %llu)\n", type, (int) usl->custom, usl->custom2);
+		usl = usl->next;
+	}
+}
+
+void uwsgi_add_reload_fds() {
+	add_reload_fds(uwsgi.reload_on_fd, "graceful");
+	add_reload_fds(uwsgi.brutal_reload_on_fd, "brutal");
+}
+
+void uwsgi_refork_master() {
+	pid_t pid = fork();
+	if (pid < 0) {
+		uwsgi_error("uwsgi_refork_master()/fork()");
+		return;
+	}
+
+	if (pid > 0) {
+		uwsgi_log_verbose("new master copy spawned with pid %d\n", (int) pid);
+		return;
+	}
+
+	// detach from the old master
+	setsid();
+
+	uwsgi.master_is_reforked = 1;
+	uwsgi_reload(uwsgi.argv);
+	// never here
+	exit(1);
+}
+
+void uwsgi_cheaper_increase() {
+	uwsgi.cheaper_fifo_delta++;
+}
+
+void uwsgi_cheaper_decrease() {
+        uwsgi.cheaper_fifo_delta--;
+}
+
+void uwsgi_go_cheap() {
+	int i;
+	int waitpid_status;
+	if (uwsgi.status.is_cheap) return;
+	uwsgi_log_verbose("going cheap...\n");
+	uwsgi.status.is_cheap = 1;
+                for (i = 1; i <= uwsgi.numproc; i++) {
+                        uwsgi.workers[i].cheaped = 1;
+                        if (uwsgi.workers[i].pid == 0)
+                                continue;
+			uwsgi_log("killing worker %d (pid: %d)\n", i, (int) uwsgi.workers[i].pid);
+                        kill(uwsgi.workers[i].pid, SIGKILL);
+                        if (waitpid(uwsgi.workers[i].pid, &waitpid_status, 0) < 0) {
+                                if (errno != ECHILD)
+                                        uwsgi_error("uwsgi_go_cheap()/waitpid()");
+                        }
+                }
+                uwsgi_add_sockets_to_queue(uwsgi.master_queue, -1);
+                uwsgi_log("cheap mode enabled: waiting for socket connection...\n");
+}

core/mount.c

@@ -0,0 +1,254 @@
+#include <uwsgi.h>
+
+/*
+
+	jail systems (Linux namespaces, FreeBSD jails...) heavily rely on mount/umount
+
+	to simplify setups (expecially because the mount command could not be available in
+	the initial phase of jailing, we need an api to mount/umount filesystems
+
+	int uwsgi_mount(char *fs, char *what, char *where, int flags);
+	int uwsgi_umount(char *where, int flags);
+
+*/
+
+#ifdef __linux__
+#ifndef MS_REC
+#define MS_REC 16384
+#endif
+#include <sys/statfs.h>
+#endif
+
+struct uwsgi_mount_flag {
+	char *key;
+	uint64_t value;
+};
+
+static struct uwsgi_mount_flag umflags[] = {
+#ifdef MS_BIND
+	{"bind", MS_BIND},
+#endif
+#ifdef MS_DIRSYNC
+	{"dirsync", MS_DIRSYNC},
+#endif
+#ifdef MS_MANDLOCK
+	{"mandlock", MS_MANDLOCK},
+#endif
+#ifdef MS_MOVE
+	{"move", MS_MOVE},
+#endif
+#ifdef MS_NOATIME
+	{"noatime", MS_NOATIME},
+#endif
+#ifdef MS_NODEV
+	{"nodev", MS_NODEV},
+#endif
+#ifdef MS_NOEXEC
+	{"noexec", MS_NOEXEC},
+#endif
+#ifdef MS_RDONLY
+	{"rdonly", MS_RDONLY},
+	{"readonly", MS_RDONLY},
+	{"ro", MS_RDONLY},
+#endif
+#ifdef MS_REMOUNT
+	{"remount", MS_REMOUNT},
+#endif
+#ifdef MS_SYNCHRONOUS
+	{"sync", MS_SYNCHRONOUS},
+#endif
+#ifdef MNT_FORCE
+	{"force", MNT_FORCE},
+#endif
+#ifdef MNT_DETACH
+	{"detach", MNT_DETACH},
+#endif
+#ifdef MS_REC
+	{"rec", MS_REC},
+	{"recursive", MS_REC},
+#endif
+#ifdef MS_PRIVATE
+	{"private", MS_PRIVATE},
+#endif
+#ifdef MS_SHARED
+	{"shared", MS_SHARED},
+#endif
+#ifdef MNT_RDONLY
+	{"rdonly", MNT_RDONLY},
+	{"readonly", MNT_RDONLY},
+	{"ro", MNT_RDONLY},
+#endif
+#ifdef MNT_NOEXEC
+	{"noexec", MNT_NOEXEC},
+#endif
+#ifdef MNT_NOSUID
+	{"nosuid", MNT_NOSUID},
+#endif
+#ifdef MNT_NOATIME
+	{"noatime", MNT_NOATIME},
+#endif
+#ifdef MNT_SNAPSHOT
+	{"snapshot", MNT_SNAPSHOT},
+#endif
+	{NULL, 0},
+};
+
+uint64_t uwsgi_mount_flag(char *mflag) {
+	struct uwsgi_mount_flag *umf = umflags;
+	while(umf->key) {
+		if (!strcmp(umf->key, mflag)) return umf->value;
+		umf++; 
+	}
+	return 0;
+}
+
+int uwsgi_mount(char *fs, char *what, char *where, char *flags) {
+#if defined(__FreeBSD__) || defined(__GNU_kFreeBSD__)
+	struct iovec iov[6];
+#endif
+	unsigned long mountflags = 0;
+	if (!flags) goto parsed;
+	char *mflags = uwsgi_str(flags);
+	char *p, *ctx = NULL;
+	uwsgi_foreach_token(mflags, ",", p, ctx) {
+		unsigned long flag = (unsigned long) uwsgi_mount_flag(p);
+		if (!flag) {
+			uwsgi_log("unknown mount flag \"%s\"\n", p);
+			exit(1);
+		}
+		mountflags |= flag;
+	}
+	free(mflags);
+parsed:
+#ifdef __linux__
+	return mount(what, where, fs, mountflags, NULL);
+#elif defined(__FreeBSD__) || defined(__GNU_kFreeBSD__)
+	iov[0].iov_base = "fstype";
+	iov[0].iov_len = 7;
+	iov[1].iov_base = fs;
+	iov[1].iov_len = strlen(fs) + 1;
+
+	iov[2].iov_base = "fspath";
+	iov[2].iov_len = 7;
+	iov[3].iov_base = where;
+	iov[3].iov_len = strlen(where) + 1;
+
+	iov[4].iov_base = "target";
+        iov[4].iov_len = 7;
+        iov[5].iov_base = what;
+        iov[5].iov_len = strlen(what) + 1;
+
+	return nmount(iov, 6, (int) mountflags);
+#endif
+	return -1;
+}
+
+int uwsgi_umount(char *where, char *flags) {
+	unsigned long mountflags = 0;
+        if (!flags) goto parsed;
+        char *mflags = uwsgi_str(flags);
+        char *p, *ctx = NULL;
+	uwsgi_foreach_token(mflags, ",", p, ctx) {
+                unsigned long flag = (unsigned long) uwsgi_mount_flag(p);
+                if (!flag) {
+                        uwsgi_log("unknown umount flag \"%s\"\n", p);
+                        exit(1);
+                }
+                mountflags |= flag;
+        }
+        free(mflags);
+parsed:
+#ifdef __linux__
+	// we need a special case for recursive umount
+	if (mountflags & MS_REC) {
+		mountflags &= ~MS_REC;
+		int unmounted = 1;
+		char *slashed = uwsgi_concat2(where, "/");
+		while (unmounted) {
+                	unmounted = 0;
+                	FILE *procmounts = fopen("/proc/self/mounts", "r");
+                	if (!procmounts) {
+				uwsgi_log("the /proc filesystem must be mounted for recursive umount\n");
+				uwsgi_error("open()");
+				exit(1);
+			}
+			char line[1024];
+                	while (fgets(line, 1024, procmounts) != NULL) {
+                        	char *delim0 = strchr(line, ' ');
+                        	if (!delim0) continue;
+                        	delim0++;
+                        	char *delim1 = strchr(delim0, ' ');
+                        	if (!delim1) continue;
+                        	*delim1 = 0;
+				if (!uwsgi_starts_with(delim0, strlen(delim0), slashed, strlen(slashed))) goto unmountable; 
+                                continue;
+unmountable:
+                        	if (!umount2(delim0, mountflags)) unmounted++;
+                	}
+                	fclose(procmounts);
+        	}
+		free(slashed);
+	}
+        return umount2(where, mountflags);
+#elif defined(__FreeBSD__) || defined(__GNU_kFreeBSD__)
+	return unmount(where, mountflags);
+#endif
+        return -1;
+}
+
+int uwsgi_mount_hook(char *arg) {
+	char *tmp_arg = uwsgi_str(arg);
+	char *fs = tmp_arg;
+	char *what = strchr(fs, ' ');
+	if (!what) goto error;
+	*what = 0; what++;
+	char *where = strchr(what, ' ');
+	if (!where) goto error;
+	*where = 0; where++;
+	char *flags = strchr(where, ' ');
+	if (flags) {
+		*flags = 0; flags++;
+	}
+	if (uwsgi_mount(fs, what, where, flags)) {
+		uwsgi_error("uwsgi_mount()");
+		free(tmp_arg);
+		return -1;
+	}	
+	free(tmp_arg);
+	return 0;
+error:
+	free(tmp_arg);
+	uwsgi_log("uwsgi_mount_hook() invalid syntax\n");
+	return -1;
+}
+
+int uwsgi_umount_hook(char *arg) {
+	char *tmp_arg = uwsgi_str(arg);
+	char *where = tmp_arg;
+        char *flags = strchr(where, ' ');
+        if (flags) {
+        	*flags = 0; flags++;
+	}
+        if (uwsgi_umount(where, flags)) {
+                uwsgi_error("uwsgi_umount()");
+                free(tmp_arg);
+                return -1;
+        }       
+        free(tmp_arg);
+        return 0;
+}
+
+int uwsgi_check_mountpoint(char *mountpoint) {
+#ifdef __linux__
+	struct statfs sfs;
+	int ret = statfs(mountpoint, &sfs);
+	if (ret) {
+		uwsgi_error("uwsgi_check_mountpoint()/statfs()");
+		return -1;
+	}
+	return 0;
+#else
+	uwsgi_log("this platform does not support mountpoints check !!!\n");
+	return -1;
+#endif
+}

core/mule.c

@@ -453,8 +453,8 @@ void uwsgi_setup_mules_and_farms() {
 			create_signal_pipe(uwsgi.farms[i].signal_pipe);
 			create_msg_pipe(uwsgi.farms[i].queue_pipe, uwsgi.mule_msg_size);
 
-			char *p = strtok(mules_list, ",");
-			while (p != NULL) {
+			char *p, *ctx = NULL;
+			uwsgi_foreach_token(mules_list, ",", p, ctx) {
 				struct uwsgi_mule *um = get_mule_by_id(atoi(p));
 				if (!um) {
 					uwsgi_log("invalid mule id: %s\n", p);
@@ -462,8 +462,6 @@ void uwsgi_setup_mules_and_farms() {
 				}
 
 				uwsgi_mule_farm_new(&uwsgi.farms[i].mules, um);
-
-				p = strtok(NULL, ",");
 			}
 			uwsgi_log("created farm %d name: %s mules:%s\n", i + 1, uwsgi.farms[i].name, strchr(farm_name->value, ':') + 1);
 

core/offload.c

@@ -58,6 +58,22 @@ static int uwsgi_offload_enqueue(struct wsgi_request *wsgi_req, struct uwsgi_off
 	return 0;
 }
 
+/*
+
+	pipe offload engine:
+		fd -> the file descriptor to read from
+		len -> amount of data to transfer
+
+*/
+
+static int u_offload_pipe_prepare(struct wsgi_request *wsgi_req, struct uwsgi_offload_request *uor) {
+
+        if (uor->fd < 0 || !uor->len) {
+                return -1;
+        }
+        return 0;
+}
+
 /*
 
         memory offload engine:
@@ -66,7 +82,7 @@ static int uwsgi_offload_enqueue(struct wsgi_request *wsgi_req, struct uwsgi_off
 
 */
 
-int u_offload_memory_prepare(struct wsgi_request *wsgi_req, struct uwsgi_offload_request *uor) {
+static int u_offload_memory_prepare(struct wsgi_request *wsgi_req, struct uwsgi_offload_request *uor) {
 
         if (!uor->buf || !uor->len) {
                 return -1;
@@ -83,7 +99,7 @@ int u_offload_memory_prepare(struct wsgi_request *wsgi_req, struct uwsgi_offload
 
 */
 
-int u_offload_transfer_prepare(struct wsgi_request *wsgi_req, struct uwsgi_offload_request *uor) {
+static int u_offload_transfer_prepare(struct wsgi_request *wsgi_req, struct uwsgi_offload_request *uor) {
 
 	if (!uor->name) {
 		return -1;
@@ -307,7 +323,7 @@ static int u_offload_sendfile_do(struct uwsgi_thread *ut, struct uwsgi_offload_r
 		if (event_queue_add_fd_write(ut->queue, uor->fd2)) return -1;
 		return 0;
 	}
-#if defined(__linux__) || defined(__sun__)
+#if defined(__linux__) || defined(__sun__) || defined(__GNU_kFreeBSD__)
 	ssize_t len = sendfile(uor->fd2, uor->fd, &uor->pos, 128 * 1024);
 	if (len > 0) {
         	uor->written += len;
@@ -329,7 +345,7 @@ static int u_offload_sendfile_do(struct uwsgi_thread *ut, struct uwsgi_offload_r
 		uwsgi_offload_retry
                 uwsgi_error("u_offload_sendfile_do()");
 	}
-#elif defined(__APPLE__)
+#elif defined(__APPLE__) && !defined(NO_SENDFILE)
 	off_t len = 0;
         int ret = sendfile(uor->fd, uor->fd2, uor->pos, &len, NULL, 0);
         // transfer finished
@@ -343,6 +359,71 @@ static int u_offload_sendfile_do(struct uwsgi_thread *ut, struct uwsgi_offload_r
 
 }
 
+/*
+
+	pipe offloading
+	status:
+		0 -> waiting for data on fd
+		1 -> waiting for write to s
+*/
+
+static int u_offload_pipe_do(struct uwsgi_thread *ut, struct uwsgi_offload_request *uor, int fd) {
+	
+	ssize_t rlen;
+
+	// setup
+	if (fd == -1) {
+		event_queue_add_fd_read(ut->queue, uor->fd);
+		return 0;
+	}
+
+	switch(uor->status) {
+		// read event from fd
+		case 0:
+			if (!uor->buf) {
+				uor->buf = uwsgi_malloc(4096);
+			}
+			rlen = read(uor->fd, uor->buf, 4096);
+			if (rlen > 0) {
+				uor->to_write = rlen;
+				uor->pos = 0;
+				if (event_queue_del_fd(ut->queue, uor->fd, event_queue_read())) return -1;
+				if (event_queue_add_fd_write(ut->queue, uor->s)) return -1;
+				uor->status = 1;
+				return 0;
+			}
+			if (rlen < 0) {
+				uwsgi_offload_retry
+				uwsgi_error("u_offload_pipe_do() -> read()");
+			}
+			return -1;
+		// write event on s
+		case 1:
+			rlen = write(uor->s, uor->buf + uor->pos, uor->to_write);
+			if (rlen > 0) {
+				uor->to_write -= rlen;
+				uor->pos += rlen;
+				if (uor->to_write == 0) {
+					if (event_queue_del_fd(ut->queue, uor->s, event_queue_write())) return -1;
+					if (event_queue_add_fd_read(ut->queue, uor->fd)) return -1;
+					uor->status = 0;
+				}
+				return 0;
+			}
+			else if (rlen < 0) {
+				uwsgi_offload_retry
+				uwsgi_error("u_offload_pipe_do() -> write()");
+			}
+			return -1;
+		default:
+			break;
+	}
+
+	return -1;
+}
+
+
+
 /*
 the offload task starts soon after the call to connect()
 
@@ -541,6 +622,7 @@ void uwsgi_offload_engines_register_all() {
 	uwsgi.offload_engine_sendfile = uwsgi_offload_register_engine("sendfile", u_offload_sendfile_prepare, u_offload_sendfile_do);
 	uwsgi.offload_engine_transfer = uwsgi_offload_register_engine("transfer", u_offload_transfer_prepare, u_offload_transfer_do);
 	uwsgi.offload_engine_memory = uwsgi_offload_register_engine("memory", u_offload_memory_prepare, u_offload_memory_do);
+	uwsgi.offload_engine_pipe = uwsgi_offload_register_engine("pipe", u_offload_pipe_prepare, u_offload_pipe_do);
 }
 
 int uwsgi_offload_request_sendfile_do(struct wsgi_request *wsgi_req, int fd, size_t len) {
@@ -566,3 +648,11 @@ int uwsgi_offload_request_memory_do(struct wsgi_request *wsgi_req, char *buf, si
         uor.len = len;
         return uwsgi_offload_run(wsgi_req, &uor, NULL);
 }
+
+int uwsgi_offload_request_pipe_do(struct wsgi_request *wsgi_req, int fd, size_t len) {
+        struct uwsgi_offload_request uor;
+        uwsgi_offload_setup(uwsgi.offload_engine_pipe, &uor, wsgi_req, 1);
+        uor.fd = fd;
+        uor.len = len;
+        return uwsgi_offload_run(wsgi_req, &uor, NULL);
+}

core/plugins.c

@@ -14,7 +14,9 @@ static void uwsgi_plugin_parse_section(char *filename) {
 			if (equal) {
 				*equal = 0;
 				if (!strcmp(p, "requires")) {
-					uwsgi_load_plugin(-1, equal + 1, NULL);
+					if (!plugin_already_loaded(equal+1)) {	
+						uwsgi_load_plugin(-1, equal + 1, NULL);
+					}
 				}
 			}
 			p = strtok_r(NULL, "\n", &ctx);
@@ -24,7 +26,7 @@ static void uwsgi_plugin_parse_section(char *filename) {
 }
 #endif
 
-int plugin_already_loaded(const char *plugin) {
+struct uwsgi_plugin *uwsgi_plugin_get(const char *plugin) {
 	int i;
 
 	for (i = 0; i < 256; i++) {
@@ -33,7 +35,7 @@ int plugin_already_loaded(const char *plugin) {
 #ifdef UWSGI_DEBUG
 				uwsgi_log("%s plugin already available\n", plugin);
 #endif
-				return 1;
+				return uwsgi.p[i];
 			}
 		}
 		if (uwsgi.p[i]->alias) {
@@ -41,7 +43,7 @@ int plugin_already_loaded(const char *plugin) {
 #ifdef UWSGI_DEBUG
 				uwsgi_log("%s plugin already available\n", plugin);
 #endif
-				return 1;
+				return uwsgi.p[i];
 			}
 		}
 	}
@@ -53,7 +55,7 @@ int plugin_already_loaded(const char *plugin) {
 #ifdef UWSGI_DEBUG
 				uwsgi_log("%s plugin already available\n", plugin);
 #endif
-				return 1;
+				return uwsgi.p[i];
 			}
 		}
 		if (uwsgi.gp[i]->alias) {
@@ -61,14 +63,21 @@ int plugin_already_loaded(const char *plugin) {
 #ifdef UWSGI_DEBUG
 				uwsgi_log("%s plugin already available\n", plugin);
 #endif
-				return 1;
+				return uwsgi.p[i];
 			}
 		}
 	}
 
+	return NULL;
+}
+
+int plugin_already_loaded(const char *plugin) {
+	struct uwsgi_plugin *up = uwsgi_plugin_get(plugin);
+	if (up) return 1;
 	return 0;
 }
 
+
 void *uwsgi_load_plugin(int modifier, char *plugin, char *has_option) {
 
 	void *plugin_handle = NULL;
@@ -91,6 +100,12 @@ void *uwsgi_load_plugin(int modifier, char *plugin, char *has_option) {
 		colon[0] = ':';
 	}
 
+	char *init_func = strchr(plugin_name, '|');
+	if (init_func) {
+		init_func[0] = 0;
+		init_func++;	
+	}
+
 	if (!uwsgi_endswith(plugin_name, "_plugin.so")) {
 		plugin_name = uwsgi_concat2(plugin_name, "_plugin.so");
 		need_free = 1;
@@ -150,6 +165,12 @@ success:
 			uwsgi_log("!!! UNABLE to load uWSGI plugin: %s !!!\n", dlerror());
 	}
 	else {
+		if (init_func) {
+			void (*plugin_init_func)() = dlsym(plugin_handle, init_func);
+			if (plugin_init_func) {
+				plugin_init_func();
+			}
+		}
 		char *plugin_entry_symbol = uwsgi_concat2n(plugin_symbol_name_start, strlen(plugin_symbol_name_start) - 3, "", 0);
 		up = dlsym(plugin_handle, plugin_entry_symbol);
 		if (!up) {

core/queue.c

@@ -57,7 +57,7 @@ void uwsgi_init_queue() {
 		uwsgi.queue_header->pos = 0;
 		uwsgi.queue_header->pull_pos = 0;
 	}
-	if (!uwsgi.queue) {
+	if (uwsgi.queue == MAP_FAILED) {
 		uwsgi_error("mmap()");
 		exit(1);
 	}

core/reader.c

@@ -389,6 +389,8 @@ wait:
 				remains -= len;
                         	*rlen += len;
                         	continue;
+			}else if (errno == EAGAIN || errno == EWOULDBLOCK || errno == EINPROGRESS) {
+				goto wait;
 			}
 			*rlen = -1;
 			if (len == 0) {
@@ -478,9 +480,9 @@ int uwsgi_postbuffer_do_in_disk(struct wsgi_request *wsgi_req) {
         int upload_progress_fd = -1;
         char *upload_progress_filename = NULL;
 
-        wsgi_req->post_file = tmpfile();
+        wsgi_req->post_file = uwsgi_tmpfile();
         if (!wsgi_req->post_file) {
-                uwsgi_error("uwsgi_postbuffer_do_in_disk()/tmpfile()");
+                uwsgi_error("uwsgi_postbuffer_do_in_disk()/uwsgi_tmpfile()");
                 return -1;
         }
 

core/routing.c

@@ -180,6 +180,10 @@ int uwsgi_apply_routes_do(struct uwsgi_route *routes, struct wsgi_request *wsgi_
 		r_goto = &wsgi_req->error_route_goto;
 		r_pc = &wsgi_req->error_route_pc;
 	}
+	else if (routes == uwsgi.response_routes) {
+                r_goto = &wsgi_req->response_route_goto;
+                r_pc = &wsgi_req->response_route_pc;
+        }
 	else if (routes == uwsgi.final_routes) {
 		r_goto = &wsgi_req->final_route_goto;
 		r_pc = &wsgi_req->final_route_pc;
@@ -306,6 +310,20 @@ int uwsgi_apply_error_routes(struct wsgi_request *wsgi_req) {
 	return uwsgi_apply_routes_do(uwsgi.error_routes, wsgi_req, NULL, 0);
 }
 
+int uwsgi_apply_response_routes(struct wsgi_request *wsgi_req) {
+
+        if (!uwsgi.response_routes) return 0;
+        if (wsgi_req->response_routes_applied) return 0;
+
+        // do not forget to check it !!!
+        if (wsgi_req->is_response_routing) return 0;
+
+        wsgi_req->is_response_routing = 1;
+
+        int ret = uwsgi_apply_routes_do(uwsgi.response_routes, wsgi_req, NULL, 0);
+	wsgi_req->response_routes_applied = 1;
+	return ret;
+}
 
 static void *uwsgi_route_get_condition_func(char *name) {
 	struct uwsgi_route_condition *urc = uwsgi.route_conditions;
@@ -337,6 +355,9 @@ void uwsgi_opt_add_route(char *opt, char *value, void *foobar) {
 	else if (!uwsgi_starts_with(opt, strlen(opt), "error", 5)) {
                 ur = uwsgi.error_routes;
         }
+	else if (!uwsgi_starts_with(opt, strlen(opt), "response", 8)) {
+                ur = uwsgi.response_routes;
+        }
 	uint64_t pos = 0;
 	while(ur) {
 		old_ur = ur;
@@ -354,6 +375,9 @@ void uwsgi_opt_add_route(char *opt, char *value, void *foobar) {
 		else if (!uwsgi_starts_with(opt, strlen(opt), "error", 5)) {
                         uwsgi.error_routes = ur;
                 }
+		else if (!uwsgi_starts_with(opt, strlen(opt), "response", 8)) {
+                        uwsgi.response_routes = ur;
+                }
 		else {
 			uwsgi.routes = ur;
 		}
@@ -564,7 +588,7 @@ static int uwsgi_router_harakiri_func(struct wsgi_request *wsgi_req, struct uwsg
 	if (route->custom > 0) {	
 		set_user_harakiri(route->custom);
 	}
-	return UWSGI_ROUTE_CONTINUE;
+	return UWSGI_ROUTE_NEXT;
 }
 
 static int uwsgi_router_harakiri(struct uwsgi_route *ur, char *arg) {
@@ -616,7 +640,6 @@ static int uwsgi_router_fixcl(struct uwsgi_route *ur, char *arg) {
         return 0;
 }
 
-
 // log route
 static int uwsgi_router_log_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
 
@@ -701,6 +724,11 @@ static int uwsgi_router_goto_func(struct wsgi_request *wsgi_req, struct uwsgi_ro
 		r_goto = &wsgi_req->final_route_goto;
 		r_pc = &wsgi_req->final_route_pc;
 	}
+	else if (wsgi_req->is_response_routing) {
+                routes = uwsgi.response_routes;
+                r_goto = &wsgi_req->response_route_goto;
+                r_pc = &wsgi_req->response_route_pc;
+        }
 	while(routes) {
 		if (!routes->label) goto next;
 		if (!uwsgi_strncmp(routes->label, routes->label_len, ub->buf, ub->pos)) {
@@ -806,6 +834,31 @@ static int uwsgi_router_remheader(struct uwsgi_route *ur, char *arg) {
         return 0;
 }
 
+// clearheaders route
+static int uwsgi_router_clearheaders_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+
+        char **subject = (char **) (((char *)(wsgi_req))+ur->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+ur->subject_len);
+
+        struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, ur, *subject, *subject_len, ur->data, ur->data_len);
+        if (!ub) return UWSGI_ROUTE_BREAK;
+
+	if (uwsgi_response_prepare_headers(wsgi_req, ub->buf, ub->pos)) {
+        	uwsgi_buffer_destroy(ub);
+        	return UWSGI_ROUTE_BREAK;
+	}
+	
+        uwsgi_buffer_destroy(ub);
+        return UWSGI_ROUTE_NEXT;
+}
+
+
+static int uwsgi_router_clearheaders(struct uwsgi_route *ur, char *arg) {
+        ur->func = uwsgi_router_clearheaders_func;
+        ur->data = arg;
+        ur->data_len = strlen(arg);
+        return 0;
+}
 
 
 // signal route
@@ -889,6 +942,126 @@ static int uwsgi_router_setscriptname(struct uwsgi_route *ur, char *arg) {
         return 0;
 }
 
+// setmethod route
+static int uwsgi_router_setmethod_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+        char **subject = (char **) (((char *)(wsgi_req))+ur->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+ur->subject_len);
+
+        struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, ur, *subject, *subject_len, ur->data, ur->data_len);
+        if (!ub) return UWSGI_ROUTE_BREAK;
+        char *ptr = uwsgi_req_append(wsgi_req, "REQUEST_METHOD", 14, ub->buf, ub->pos);
+        if (!ptr) {
+                uwsgi_buffer_destroy(ub);
+                return UWSGI_ROUTE_BREAK;
+        }
+        wsgi_req->method = ptr;
+        wsgi_req->method_len = ub->pos;
+        uwsgi_buffer_destroy(ub);
+        return UWSGI_ROUTE_NEXT;
+}
+static int uwsgi_router_setmethod(struct uwsgi_route *ur, char *arg) {
+        ur->func = uwsgi_router_setmethod_func;
+        ur->data = arg;
+        ur->data_len = strlen(arg);
+        return 0;
+}
+
+// seturi route
+static int uwsgi_router_seturi_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+        char **subject = (char **) (((char *)(wsgi_req))+ur->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+ur->subject_len);
+
+        struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, ur, *subject, *subject_len, ur->data, ur->data_len);
+        if (!ub) return UWSGI_ROUTE_BREAK;
+        char *ptr = uwsgi_req_append(wsgi_req, "REQUEST_URI", 11, ub->buf, ub->pos);
+        if (!ptr) {
+                uwsgi_buffer_destroy(ub);
+                return UWSGI_ROUTE_BREAK;
+        }
+        wsgi_req->uri = ptr;
+        wsgi_req->uri_len = ub->pos;
+        uwsgi_buffer_destroy(ub);
+        return UWSGI_ROUTE_NEXT;
+}
+static int uwsgi_router_seturi(struct uwsgi_route *ur, char *arg) {
+        ur->func = uwsgi_router_seturi_func;
+        ur->data = arg;
+        ur->data_len = strlen(arg);
+        return 0;
+}
+// setdocroot route
+static int uwsgi_router_setdocroot_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+        char **subject = (char **) (((char *)(wsgi_req))+ur->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+ur->subject_len);
+
+        struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, ur, *subject, *subject_len, ur->data, ur->data_len);
+        if (!ub) return UWSGI_ROUTE_BREAK;
+        char *ptr = uwsgi_req_append(wsgi_req, "DOCUMENT_ROOT", 13, ub->buf, ub->pos);
+        if (!ptr) {
+                uwsgi_buffer_destroy(ub);
+                return UWSGI_ROUTE_BREAK;
+        }
+        wsgi_req->document_root = ptr;
+        wsgi_req->document_root_len = ub->pos;
+        uwsgi_buffer_destroy(ub);
+        return UWSGI_ROUTE_NEXT;
+}
+static int uwsgi_router_setdocroot(struct uwsgi_route *ur, char *arg) {
+        ur->func = uwsgi_router_setdocroot_func;
+        ur->data = arg;
+        ur->data_len = strlen(arg);
+        return 0;
+}
+
+
+// setpathinfo route
+static int uwsgi_router_setpathinfo_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+        char **subject = (char **) (((char *)(wsgi_req))+ur->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+ur->subject_len);
+
+        struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, ur, *subject, *subject_len, ur->data, ur->data_len);
+        if (!ub) return UWSGI_ROUTE_BREAK;
+        char *ptr = uwsgi_req_append(wsgi_req, "PATH_INFO", 9, ub->buf, ub->pos);
+        if (!ptr) {
+                uwsgi_buffer_destroy(ub);
+                return UWSGI_ROUTE_BREAK;
+        }
+        wsgi_req->path_info = ptr;
+        wsgi_req->path_info_len = ub->pos;
+        uwsgi_buffer_destroy(ub);
+        return UWSGI_ROUTE_NEXT;
+}
+static int uwsgi_router_setpathinfo(struct uwsgi_route *ur, char *arg) {
+        ur->func = uwsgi_router_setpathinfo_func;
+        ur->data = arg;
+        ur->data_len = strlen(arg);
+        return 0;
+}
+
+// setscheme route
+static int uwsgi_router_setscheme_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
+        char **subject = (char **) (((char *)(wsgi_req))+ur->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+ur->subject_len);
+
+        struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, ur, *subject, *subject_len, ur->data, ur->data_len);
+        if (!ub) return UWSGI_ROUTE_BREAK;
+        char *ptr = uwsgi_req_append(wsgi_req, "UWSGI_SCHEME", 12, ub->buf, ub->pos);
+        if (!ptr) {
+                uwsgi_buffer_destroy(ub);
+                return UWSGI_ROUTE_BREAK;
+        }
+        wsgi_req->scheme = ptr;
+        wsgi_req->scheme_len = ub->pos;
+        uwsgi_buffer_destroy(ub);
+        return UWSGI_ROUTE_NEXT;
+}
+static int uwsgi_router_setscheme(struct uwsgi_route *ur, char *arg) {
+        ur->func = uwsgi_router_setscheme_func;
+        ur->data = arg;
+        ur->data_len = strlen(arg);
+        return 0;
+}
+
 
 // setuser route
 static int uwsgi_router_setuser_func(struct wsgi_request *wsgi_req, struct uwsgi_route *ur) {
@@ -1025,10 +1198,21 @@ static int uwsgi_router_alarm(struct uwsgi_route *ur, char *arg) {
 
 // send route
 static int uwsgi_router_send_func(struct wsgi_request *wsgi_req, struct uwsgi_route *route) {
-	uwsgi_response_write_body_do(wsgi_req, route->data, route->data_len);
+	char **subject = (char **) (((char *)(wsgi_req))+route->subject);
+        uint16_t *subject_len = (uint16_t *)  (((char *)(wsgi_req))+route->subject_len);
+
+	struct uwsgi_buffer *ub = uwsgi_routing_translate(wsgi_req, route, *subject, *subject_len, route->data, route->data_len);
+        if (!ub) {
+                return UWSGI_ROUTE_BREAK;
+        }
 	if (route->custom) {
-		uwsgi_response_write_body_do(wsgi_req, "\r\n", 2);
+		if (uwsgi_buffer_append(ub, "\r\n", 2)) {
+			uwsgi_buffer_destroy(ub);
+			return UWSGI_ROUTE_BREAK;
+		}
 	}
+	uwsgi_response_write_body_do(wsgi_req, ub->buf, ub->pos);
+	uwsgi_buffer_destroy(ub);
         return UWSGI_ROUTE_NEXT;
 }
 static int uwsgi_router_send(struct uwsgi_route *ur, char *arg) {
@@ -1389,6 +1573,11 @@ static char *uwsgi_route_var_uwsgi(struct wsgi_request *wsgi_req, char *key, uin
                 *vallen = strlen(ret);
         }
 
+	else if (!uwsgi_strncmp(key, keylen, "lq", 2)) {
+                ret = uwsgi_num2str(uwsgi.shared->load);
+                *vallen = strlen(ret);
+        }
+
 	return ret;
 }
 
@@ -1505,6 +1694,8 @@ void uwsgi_register_embedded_routers() {
         uwsgi_register_router("addheader", uwsgi_router_addheader);
         uwsgi_register_router("delheader", uwsgi_router_remheader);
         uwsgi_register_router("remheader", uwsgi_router_remheader);
+        uwsgi_register_router("clearheaders", uwsgi_router_clearheaders);
+        uwsgi_register_router("resetheaders", uwsgi_router_clearheaders);
         uwsgi_register_router("signal", uwsgi_router_signal);
         uwsgi_register_router("send", uwsgi_router_send);
         uwsgi_register_router("send-crnl", uwsgi_router_send_crnl);
@@ -1514,6 +1705,11 @@ void uwsgi_register_embedded_routers() {
         uwsgi_register_router("sethome", uwsgi_router_sethome);
         uwsgi_register_router("setfile", uwsgi_router_setfile);
         uwsgi_register_router("setscriptname", uwsgi_router_setscriptname);
+        uwsgi_register_router("setmethod", uwsgi_router_setmethod);
+        uwsgi_register_router("seturi", uwsgi_router_seturi);
+        uwsgi_register_router("setpathinfo", uwsgi_router_setpathinfo);
+        uwsgi_register_router("setdocroot", uwsgi_router_setdocroot);
+        uwsgi_register_router("setscheme", uwsgi_router_setscheme);
         uwsgi_register_router("setprocname", uwsgi_router_setprocname);
         uwsgi_register_router("alarm", uwsgi_router_alarm);
 
@@ -1620,6 +1816,7 @@ struct uwsgi_route_condition *uwsgi_register_route_condition(char *name, int (*f
 }
 
 void uwsgi_routing_dump() {
+	struct uwsgi_string_list *usl = NULL;
 	struct uwsgi_route *routes = uwsgi.routes;
 	if (!routes) goto next;
 	uwsgi_log("*** dumping internal routing table ***\n");
@@ -1654,8 +1851,25 @@ next:
         }
         uwsgi_log("*** end of the internal error routing table ***\n");
 next2:
+	routes = uwsgi.response_routes;
+        if (!routes) goto next3;
+        uwsgi_log("*** dumping internal response routing table ***\n");
+        while(routes) {
+                if (routes->label) {
+                        uwsgi_log("[rule: %llu] label: %s\n", (unsigned long long ) routes->pos, routes->label);
+                }
+                else if (!routes->subject_str && !routes->if_func) {
+                        uwsgi_log("[rule: %llu] action: %s\n", (unsigned long long ) routes->pos, routes->action);
+                }
+                else {
+                        uwsgi_log("[rule: %llu] subject: %s %s: %s%s action: %s\n", (unsigned long long ) routes->pos, routes->subject_str, routes->if_func ? "func" : "regexp", routes->if_negate ? "!" : "", routes->regexp, routes->action);
+                }
+                routes = routes->next;
+        }
+        uwsgi_log("*** end of the internal response routing table ***\n");
+next3:
 	routes = uwsgi.final_routes;
-	if (!routes) return;
+	if (!routes) goto next4;
         uwsgi_log("*** dumping internal final routing table ***\n");
         while(routes) {
                 if (routes->label) {
@@ -1670,5 +1884,20 @@ next2:
                 routes = routes->next;
         }
         uwsgi_log("*** end of the internal final routing table ***\n");
+
+next4:
+	uwsgi_foreach(usl, uwsgi.collect_headers) {
+		char *space = strchr(usl->value, ' ');
+		if (!space) {
+			uwsgi_log("invalid collect header syntax, must be <header> <var>\n");
+			exit(1);
+		}
+		*space = 0;
+		usl->custom = strlen(usl->value);
+		*space = ' ';
+		usl->custom_ptr = space+1;
+		usl->custom2 = strlen(space+1);
+		uwsgi_log("collecting header %.*s to var %s\n", usl->custom, usl->value, usl->custom_ptr);
+	}
 }
 #endif

core/sendfile.c

@@ -4,26 +4,30 @@ extern struct uwsgi_server uwsgi;
 
 // sendfile() abstraction
 ssize_t uwsgi_sendfile_do(int sockfd, int filefd, size_t pos, size_t len) {
+	// for platform not supporting sendfile we need to rely on boring read/write
+	// generally that platforms have very low memory, so use a 8k buffer
+	char buf[8192];
+
+	if (uwsgi.disable_sendfile) goto no_sendfile;
 
 #if defined(__FreeBSD__) || defined(__DragonFly__)
 	off_t sf_len = len;
         int sf_ret = sendfile(filefd, sockfd, pos, len, NULL,  &sf_len, 0);
         if (sf_ret == 0 || (sf_ret == -1 && errno == EAGAIN)) return sf_len;
         return -1;
-#elif defined(__APPLE__)
+#elif defined(__APPLE__) && !defined(NO_SENDFILE)
 	off_t sf_len = len;
 	int sf_ret = sendfile(filefd, sockfd, pos, &sf_len, NULL, 0);
 	if (sf_ret == 0 || (sf_ret == -1 && errno == EAGAIN)) return sf_len;
 	return -1;
-#elif defined(__linux__) || defined(__sun__)
+#elif defined(__linux__) || defined(__sun__) || defined(__GNU_kFreeBSD__)
 	off_t off = pos;
 	return sendfile(sockfd, filefd, &off, len);
-#else
-	// for platform not supporting sendfile we need to rely on boring read/write
-	// generally that platforms have very low memory, so use a 8k buffer
-	char buf[8192];
+#endif
+
+no_sendfile:
 	if (pos > 0) {
-		if (lseek(filefd, pos, SEEK_SET)) {
+		if (lseek(filefd, pos, SEEK_SET) < 0) {
 			uwsgi_error("uwsgi_sendfile_do()/seek()");
 			return -1;
 		}
@@ -34,6 +38,42 @@ ssize_t uwsgi_sendfile_do(int sockfd, int filefd, size_t pos, size_t len) {
 		return -1;
 	}
 	return write(sockfd, buf, rlen);
-#endif
 
 }
+
+
+/*
+	simple non blocking sendfile implementation
+	(generally used as fallback)
+*/
+
+int uwsgi_simple_sendfile(struct wsgi_request *wsgi_req, int fd, size_t pos, size_t len) {
+
+	wsgi_req->write_pos = 0;
+
+	for(;;) {
+                int ret = wsgi_req->socket->proto_sendfile(wsgi_req, fd, pos, len);
+                if (ret < 0) {
+                        if (!uwsgi.ignore_write_errors) {
+                                uwsgi_error("uwsgi_simple_sendfile()");
+                        }
+                        wsgi_req->write_errors++;
+                        return -1;
+                }
+                if (ret == UWSGI_OK) {
+                        break;
+                }
+                ret = uwsgi_wait_write_req(wsgi_req);
+                if (ret < 0) {
+                        wsgi_req->write_errors++;
+                        return -1;
+                }
+                if (ret == 0) {
+                        uwsgi_log("uwsgi_simple_sendfile() TIMEOUT !!!\n");
+                        wsgi_req->write_errors++;
+                        return -1;
+                }
+        }
+
+	return 0;
+}

core/signal.c

@@ -301,8 +301,10 @@ int uwsgi_signal_send(int fd, uint8_t sig) {
 		else {
 			uwsgi_error("uwsgi_signal_send()");
 		}
+		uwsgi.shared->unrouted_signals++;
 		return -1;
 	}
+	uwsgi.shared->routed_signals++;
 	return 0;
 
 }

core/snmp.c

@@ -23,6 +23,7 @@ static uint64_t get_uwsgi_custom_snmp_value(uint64_t, uint8_t *);
 static uint8_t snmp_int_to_snmp(uint64_t, uint8_t, uint8_t *);
 
 static ssize_t build_snmp_response(uint8_t, uint8_t, uint8_t *, int, uint8_t *, uint8_t *, uint8_t *);
+static ssize_t build_snmp_metric_response(int64_t, uint8_t, uint8_t *, int, uint8_t *, uint8_t *, uint8_t *);
 
 void manage_snmp(int fd, uint8_t * buffer, int size, struct sockaddr_in *client_addr) {
 
@@ -71,7 +72,7 @@ void manage_snmp(int fd, uint8_t * buffer, int size, struct sockaddr_in *client_
 	uwsgi_debug("SNMP version: %d\n", version);
 #endif
 
-	// check for community string (this must be set from the python vm using uwsgi.snmp_community or with --snmp-community arg)
+	// check for community string (this must be set from the api using uwsgi.snmp_community or with --snmp-community arg)
 	if (*ptr != SNMP_STRING)
 		return;
 	ptr++;
@@ -196,7 +197,7 @@ void manage_snmp(int fd, uint8_t * buffer, int size, struct sockaddr_in *client_
 	ptr++;
 
 	oidlen = *ptr;
-	if (oidlen != 11)
+	if (oidlen < 11)
 		return;
 	ptr++;
 
@@ -208,21 +209,33 @@ void manage_snmp(int fd, uint8_t * buffer, int size, struct sockaddr_in *client_
 
 	oid_part[0] = *ptr;
 
-	if (oid_part[0] != 1 && oid_part[0] != 2)
-		return;
-	ptr++;
+	// old style SNMP metrics
+	if (oid_part[0] == 1 || oid_part[0] == 2) {
+		ptr++;
 
-	oid_part[1] = *ptr;
-	if (oid_part[1] < 1 || oid_part[1] > 100)
-		return;
-	ptr++;
+		oid_part[1] = *ptr;
+		if (oid_part[1] < 1 || oid_part[1] > 100)
+			return;
+		ptr++;
 
-	// check for null
-	if (memcmp((char *) ptr, "\x05\x00", 2))
-		return;
-	ptr += 2;
+		// check for null
+		if (memcmp((char *) ptr, "\x05\x00", 2))
+			return;
+		ptr += 2;
+		size = build_snmp_response(oid_part[0], oid_part[1], buffer, size, seq1, seq2, seq3);
+	}
+	// metrics subsystem
+	else {
+		size_t metric_asn_len = oidlen - 9;
+		char *metric_asn = (char *) ptr;
+		struct uwsgi_metric *um = uwsgi_metric_find_by_asn(metric_asn, metric_asn_len);
+		if (!um) return;
+		uwsgi_rlock(uwsgi.metrics_lock);
+		int64_t value = *um->value;
+		uwsgi_rwunlock(uwsgi.metrics_lock);
+		size = build_snmp_metric_response(value, um->type, buffer, size, seq1, seq2, seq3);
+	}
 
-	size = build_snmp_response(oid_part[0], oid_part[1], buffer, size, seq1, seq2, seq3);
 
 	if (size > 0) {
 		if (sendto(fd, buffer, size, 0, (struct sockaddr *) client_addr, sizeof(struct sockaddr_in)) < 0) {
@@ -292,6 +305,7 @@ static uint8_t snmp_int_to_snmp(uint64_t snmp_val, uint8_t oid_type, uint8_t * b
 	uint8_t tlen;
 	int i, j;
 	uint8_t *ptr = (uint8_t *) & snmp_val;
+	int32_t val32 = (int32_t) snmp_val;
 
 	// check for counter, counter64 or gauge
 
@@ -303,6 +317,7 @@ static uint8_t snmp_int_to_snmp(uint64_t snmp_val, uint8_t oid_type, uint8_t * b
 	}
 	else {
 		tlen = 4;
+		ptr = (uint8_t *) &val32;
 	}
 
 	buffer[0] = tlen;
@@ -352,6 +367,32 @@ static ssize_t build_snmp_response(uint8_t oid1, uint8_t oid2, uint8_t * buffer,
 
 }
 
+static ssize_t build_snmp_metric_response(int64_t value, uint8_t type, uint8_t * buffer, int size, uint8_t * seq1, uint8_t * seq2, uint8_t * seq3) {
+        uint8_t oid_sz;
+
+	if (type == UWSGI_METRIC_GAUGE) {
+        	buffer[size - 2] = SNMP_GAUGE;
+        	oid_sz = snmp_int_to_snmp(value, SNMP_GAUGE, buffer + (size - 1));
+	}
+	else {
+		buffer[size - 2] = SNMP_COUNTER64;
+        	oid_sz = snmp_int_to_snmp(value, SNMP_COUNTER64, buffer + (size - 1));
+	}
+
+        if (oid_sz < 1)
+                return -1;
+
+        oid_sz--;
+
+        buffer[1] += oid_sz;
+        *seq1 += oid_sz;
+        *seq2 += oid_sz;
+        *seq3 += oid_sz;
+
+        return size + oid_sz;
+
+}
+
 void uwsgi_opt_snmp(char *opt, char *value, void *foobar) {
 	uwsgi.snmp = 1;
 	if (value) {

core/socket.c

@@ -74,7 +74,7 @@ int bind_to_unix_dgram(char *socket_name) {
 	}
 
 	if (unlink(socket_name) != 0 && errno != ENOENT) {
-		uwsgi_error("unlink()");
+		uwsgi_error("error removing unix socket, unlink()");
 	}
 
 	uws_addr = uwsgi_calloc(sizeof(struct sockaddr_un));
@@ -187,6 +187,14 @@ int bind_to_unix(char *socket_name, int listen_queue, int chmod_socket, int abst
 		return -1;
 	}
 
+#ifdef __linux__
+        long somaxconn = uwsgi_num_from_file("/proc/sys/net/core/somaxconn", 1);
+        if (somaxconn > 0 && uwsgi.listen_queue > somaxconn) {
+                uwsgi_log("Listen queue size is greater than the system max net.core.somaxconn (%li).\n", somaxconn);
+                uwsgi_nuclear_blast();
+                return -1;
+        }
+#endif
 
 	if (listen(serverfd, listen_queue) != 0) {
 		uwsgi_error("listen()");
@@ -1358,7 +1366,7 @@ void uwsgi_add_sockets_to_queue(int queue, int async_id) {
 
 	struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
 	while (uwsgi_sock) {
-		if (uwsgi_sock->fd_threads && async_id > -1) {
+		if (uwsgi_sock->fd_threads && async_id > -1 && uwsgi_sock->fd_threads[async_id] > -1) {
 			event_queue_add_fd_read(queue, uwsgi_sock->fd_threads[async_id]);
 		}
 		else if (uwsgi_sock->fd > -1) {
@@ -1645,8 +1653,8 @@ void uwsgi_map_sockets() {
 			}
 			if ((int) uwsgi_str_num(usl->value, colon - usl->value) == uwsgi_get_socket_num(uwsgi_sock)) {
 				enabled = 0;
-				char *p = strtok(colon + 1, ",");
-				while (p != NULL) {
+				char *p, *ctx = NULL;
+				uwsgi_foreach_token(colon + 1, ",", p, ctx) {
 					int w = atoi(p);
 					if (w < 1 || w > uwsgi.numproc) {
 						uwsgi_log("invalid worker num: %d\n", w);
@@ -1657,7 +1665,6 @@ void uwsgi_map_sockets() {
 						uwsgi_log("mapped socket %d (%s) to worker %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi.mywid);
 						break;
 					}
-					p = strtok(NULL, ",");
 				}
 			}
 
@@ -1666,18 +1673,7 @@ void uwsgi_map_sockets() {
 
 		if (!enabled) {
 			close(uwsgi_sock->fd);
-			int fd = open("/dev/null", O_RDONLY);
-			if (fd < 0) {
-				uwsgi_error_open("/dev/null");
-				exit(1);
-			}
-			if (fd != uwsgi_sock->fd) {
-				if (dup2(fd, uwsgi_sock->fd) < 0) {
-					uwsgi_error("dup2()");
-					exit(1);
-				}
-				close(fd);
-			}
+			uwsgi_remap_fd(uwsgi_sock->fd, "/dev/null");
 			uwsgi_sock->disabled = 1;
 		}
 
@@ -1707,6 +1703,10 @@ void uwsgi_bind_sockets() {
 	while (uwsgi_sock) {
 		if (!uwsgi_sock->bound && !uwsgi_socket_is_already_bound(uwsgi_sock->name)) {
 			char *tcp_port = strrchr(uwsgi_sock->name, ':');
+			int current_defer_accept = uwsgi.no_defer_accept;
+                        if (uwsgi_sock->no_defer) {
+                                uwsgi.no_defer_accept = 1;
+                        }
 			if (tcp_port == NULL) {
 				uwsgi_sock->fd = bind_to_unix(uwsgi_sock->name, uwsgi.listen_queue, uwsgi.chmod_socket, uwsgi.abstract_socket);
 				uwsgi_sock->family = AF_UNIX;
@@ -1714,6 +1714,10 @@ void uwsgi_bind_sockets() {
 					uwsgi_chown(uwsgi_sock->name, uwsgi.chown_socket);
 				}
 				uwsgi_log("uwsgi socket %d bound to UNIX address %s fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi_sock->fd);
+				struct stat st;
+				if (uwsgi_sock->name[0] != '@' && !stat(uwsgi_sock->name, &st)) {
+					uwsgi_sock->inode = st.st_ino;
+				}
 			}
 			else {
 #ifdef AF_INET6
@@ -1736,6 +1740,7 @@ void uwsgi_bind_sockets() {
 				uwsgi_log("unable to create server socket on: %s\n", uwsgi_sock->name);
 				exit(1);
 			}
+			uwsgi.no_defer_accept = current_defer_accept;
 		}
 		uwsgi_sock->bound = 1;
 		uwsgi_sock = uwsgi_sock->next;
@@ -1781,7 +1786,8 @@ void uwsgi_bind_sockets() {
 			int fd = open("/dev/null", O_RDONLY);
 			if (fd < 0) {
 				uwsgi_error_open("/dev/null");
-				exit(1);
+				uwsgi_log("WARNING: unable to remap stdin, /dev/null not available\n");
+				goto stdin_done;
 			}
 			if (fd != 0) {
 				if (dup2(fd, 0) < 0) {
@@ -1799,6 +1805,8 @@ void uwsgi_bind_sockets() {
 
 	}
 
+stdin_done:
+
 	// check for auto_port socket
 	uwsgi_sock = uwsgi.sockets;
 	while (uwsgi_sock) {
@@ -1863,7 +1871,20 @@ setup_proto:
 			if (uwsgi.offload_threads > 0)
 				uwsgi_sock->can_offload = 1;
 		}
-
+		else if (requested_protocol && !strcmp("raw", requested_protocol)) {
+			uwsgi_sock->proto = uwsgi_proto_raw_parser;
+                        uwsgi_sock->proto_accept = uwsgi_proto_base_accept;
+                        uwsgi_sock->proto_prepare_headers = uwsgi_proto_base_prepare_headers;
+                        uwsgi_sock->proto_add_header = uwsgi_proto_base_add_header;
+                        uwsgi_sock->proto_fix_headers = uwsgi_proto_base_fix_headers;
+                        uwsgi_sock->proto_read_body = uwsgi_proto_base_read_body;
+                        uwsgi_sock->proto_write = uwsgi_proto_base_write;
+                        uwsgi_sock->proto_write_headers = uwsgi_proto_base_write;
+                        uwsgi_sock->proto_sendfile = uwsgi_proto_base_sendfile;
+                        uwsgi_sock->proto_close = uwsgi_proto_base_close;
+                        if (uwsgi.offload_threads > 0)
+                                uwsgi_sock->can_offload = 1;
+		}
 		else if (requested_protocol && (!strcmp("fastcgi", requested_protocol) || !strcmp("fcgi", requested_protocol))) {
 			uwsgi_sock->proto = uwsgi_proto_fastcgi_parser;
 			uwsgi_sock->proto_accept = uwsgi_proto_base_accept;
@@ -1889,7 +1910,7 @@ setup_proto:
                         uwsgi_sock->proto_close = uwsgi_proto_fastcgi_close;
                 }
 
-		else if (requested_protocol && (!strcmp("scgi", requested_protocol) || !strcmp("scgi", requested_protocol))) {
+		else if (requested_protocol && !strcmp("scgi", requested_protocol)) {
                         uwsgi_sock->proto = uwsgi_proto_scgi_parser;
                         uwsgi_sock->proto_accept = uwsgi_proto_base_accept;
                         uwsgi_sock->proto_prepare_headers = uwsgi_proto_base_cgi_prepare_headers;
@@ -1902,7 +1923,7 @@ setup_proto:
                         uwsgi_sock->proto_close = uwsgi_proto_base_close;
                 }
 
-		else if (requested_protocol && (!strcmp("scgi-nph", requested_protocol) || !strcmp("scgi-nph", requested_protocol))) {
+		else if (requested_protocol && !strcmp("scgi-nph", requested_protocol)) {
                         uwsgi_sock->proto = uwsgi_proto_scgi_parser;
                         uwsgi_sock->proto_accept = uwsgi_proto_base_accept;
                         uwsgi_sock->proto_prepare_headers = uwsgi_proto_base_prepare_headers;
@@ -1921,6 +1942,22 @@ setup_proto:
 			uwsgi.zeromq = 1;
 		}
 #endif
+		else if (requested_protocol && !strcmp("puwsgi", requested_protocol)) {
+                        uwsgi_sock->proto = uwsgi_proto_puwsgi_parser;
+                        uwsgi_sock->proto_accept = uwsgi_proto_puwsgi_accept;
+                        uwsgi_sock->proto_prepare_headers = uwsgi_proto_base_prepare_headers;
+                        uwsgi_sock->proto_add_header = uwsgi_proto_base_add_header;
+                        uwsgi_sock->proto_fix_headers = uwsgi_proto_base_fix_headers;
+                        uwsgi_sock->proto_read_body = uwsgi_proto_noop_read_body;
+                        uwsgi_sock->proto_write = uwsgi_proto_base_write;
+                        uwsgi_sock->proto_write_headers = uwsgi_proto_base_write;
+                        uwsgi_sock->proto_sendfile = uwsgi_proto_base_sendfile;
+                        uwsgi_sock->proto_close = uwsgi_proto_puwsgi_close;
+			uwsgi_sock->fd_threads = uwsgi_malloc(sizeof(int) * uwsgi.cores);
+			memset(uwsgi_sock->fd_threads, -1, sizeof(int) * uwsgi.cores);
+			uwsgi_sock->retry = uwsgi_calloc(sizeof(int) * uwsgi.cores);
+			uwsgi.is_et = 1;
+                }
 		else {
 			uwsgi_sock->proto = uwsgi_proto_uwsgi_parser;
 			uwsgi_sock->proto_accept = uwsgi_proto_base_accept;
@@ -1951,3 +1988,22 @@ void uwsgi_tcp_nodelay(int fd) {
 #endif
 }
 
+int uwsgi_accept(int server_fd) {
+	struct sockaddr_un client_src;
+        memset(&client_src, 0, sizeof(struct sockaddr_un));
+        socklen_t client_src_len = 0;
+#if defined(__linux__) && defined(SOCK_NONBLOCK) && !defined(OBSOLETE_LINUX_KERNEL)
+        return accept4(server_fd, (struct sockaddr *) &client_src, &client_src_len, SOCK_NONBLOCK);
+#elif defined(__linux__)
+        int client_fd = accept(server_fd, (struct sockaddr *) &client_src, &client_src_len);
+        if (client_fd >= 0) {
+                uwsgi_socket_nb(client_fd);
+        }
+        return client_fd;
+#else
+ 	return accept(server_fd, (struct sockaddr *) &client_src, &client_src_len);
+#endif
+
+
+}
+

core/spooler.c

@@ -227,20 +227,33 @@ int spool_request(struct uwsgi_spooler *uspool, char *filename, int rn, int core
 #endif
 
 	if (write(fd, &uh, 4) != 4) {
+		uwsgi_log("[spooler] unable to write header for %s\n", filename);
 		goto clear;
 	}
 
 	if (write(fd, buffer, size) != size) {
+		uwsgi_log("[spooler] unable to write args for %s\n", filename);
 		goto clear;
 	}
 
 	if (body && body_len > 0) {
 		if ((size_t) write(fd, body, body_len) != body_len) {
+			uwsgi_log("[spooler] unable to write body for %s\n", filename);
 			goto clear;
 		}
 	}
 
 	if (at > 0) {
+#ifdef __UCLIBC__
+		struct timespec ts[2]; 
+		ts[0].tv_sec = at; 
+		ts[0].tv_nsec = 0;
+		ts[1].tv_sec = at;
+		ts[1].tv_nsec = 0; 
+		if (futimens(fd, ts)) {
+			uwsgi_error("futimens()");	
+		}
+#else
 		struct timeval tv[2];
 		tv[0].tv_sec = at;
 		tv[0].tv_usec = 0;
@@ -253,6 +266,7 @@ int spool_request(struct uwsgi_spooler *uspool, char *filename, int rn, int core
 #endif
 			uwsgi_error("futimes()");
 		}
+#endif
 	}
 
 	// here the file will be unlocked too
@@ -380,7 +394,7 @@ void spooler(struct uwsgi_spooler *uspool) {
 static void spooler_scandir(struct uwsgi_spooler *uspool, char *dir) {
 
 	struct dirent **tasklist;
-	int n;
+	int n, i;
 
 	if (!dir)
 		dir = uspool->dir;
@@ -391,9 +405,9 @@ static void spooler_scandir(struct uwsgi_spooler *uspool, char *dir) {
 		return;
 	}
 
-	while (n--) {
-		spooler_manage_task(uspool, dir, tasklist[n]->d_name);
-		free(tasklist[n]);
+	for (i = 0; i < n; i++) {
+		spooler_manage_task(uspool, dir, tasklist[i]->d_name);
+		free(tasklist[i]);
 	}
 
 	free(tasklist);

core/ssl.c

@@ -71,7 +71,11 @@ SSL_SESSION *uwsgi_ssl_session_get_cb(SSL *ssl, unsigned char *key, int keylen,
                 }
                 return NULL;
         }
+#if (OPENSSL_VERSION_NUMBER >= 0x0090800fL)
         SSL_SESSION *sess = d2i_SSL_SESSION(NULL, (const unsigned char **)&value, valsize);
+#else
+        SSL_SESSION *sess = d2i_SSL_SESSION(NULL, (unsigned char **)&value, valsize);
+#endif
         uwsgi_rwunlock(uwsgi.ssl_sessions_cache->lock);
         return sess;
 }

core/stats.c

@@ -440,6 +440,11 @@ void uwsgi_stats_pusher_loop(struct uwsgi_thread *ut) {
 	void *events = event_queue_alloc(1);
 	for (;;) {
 		int nevents = event_queue_wait_multi(ut->queue, 1, events, 1);
+		if (nevents < 0) {
+			if (errno == EINTR) continue;
+			uwsgi_log_verbose("ending the stats pusher thread...\n");
+			return;
+		}
 		if (nevents > 0) {
 			int interesting_fd = event_queue_interesting_fd(events, 0);
 			char buf[4096];
@@ -457,7 +462,8 @@ void uwsgi_stats_pusher_loop(struct uwsgi_thread *ut) {
 		struct uwsgi_stats *us = NULL;
 		while (uspi) {
 			int delta = uspi->freq ? uspi->freq : uwsgi.stats_pusher_default_freq;
-			if ((uspi->last_run + delta) <= now) {
+			if (((uspi->last_run + delta) <= now) || (uspi->needs_retry && (uspi->next_retry <= now))) {
+				if (uspi->needs_retry) uspi->retries++;
 				if (uspi->raw) {
 					uspi->pusher->func(uspi, now, NULL, 0);
 				}
@@ -470,6 +476,17 @@ void uwsgi_stats_pusher_loop(struct uwsgi_thread *ut) {
 					uspi->pusher->func(uspi, now, us->base, us->pos);
 				}
 				uspi->last_run = now;
+				if (uspi->needs_retry && uspi->max_retries > 0 && uspi->retries < uspi->max_retries) {
+					uwsgi_log("[uwsgi-stats-pusher] %s failed (%d), retry in %ds\n", uspi->pusher->name, uspi->retries, uspi->retry_delay);
+					uspi->next_retry = now + uspi->retry_delay;
+				} else if (uspi->needs_retry && uspi->retries >= uspi->max_retries) {
+					uwsgi_log("[uwsgi-stats-pusher] %s failed and maximum number of retries was reached (%d)\n", uspi->pusher->name, uspi->retries);
+					uspi->needs_retry = 0;
+					uspi->retries = 0;
+				} else if (uspi->retries) {
+					uwsgi_log("[uwsgi-stats-pusher] retry succeeded for %s\n", uspi->pusher->name);
+					uspi->retries = 0;
+				}
 			}
 next:
 			uspi = uspi->next;
@@ -531,50 +548,6 @@ struct uwsgi_stats_pusher *uwsgi_register_stats_pusher(char *name, void (*func)
 	return pusher;
 }
 
-struct uwsgi_stats_pusher_file_conf {
-	char *path;
-	char *freq;
-	char *separator;
-};
-
-void uwsgi_stats_pusher_file(struct uwsgi_stats_pusher_instance *uspi, time_t now, char *json, size_t json_len) {
-	struct uwsgi_stats_pusher_file_conf *uspic = (struct uwsgi_stats_pusher_file_conf *) uspi->data;
-	if (!uspi->configured) {
-		uspic = uwsgi_calloc(sizeof(struct uwsgi_stats_pusher_file_conf));
-		if (uspi->arg) {
-			if (uwsgi_kvlist_parse(uspi->arg, strlen(uspi->arg), ',', '=', "path", &uspic->path, "separator", &uspic->separator, "freq", &uspic->freq, NULL)) {
-				free(uspi);
-				return;
-			}
-		}
-		if (!uspic->path)
-			uspic->path = "uwsgi.stats";
-		if (!uspic->separator)
-			uspic->separator = "\n\n";
-		if (uspic->freq)
-			uspi->freq = atoi(uspic->freq);
-		uspi->configured = 1;
-		uspi->data = uspic;
-	}
-
-	int fd = open(uspic->path, O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP);
-	if (fd < 0) {
-		uwsgi_error_open(uspic->path);
-		return;
-	}
-	ssize_t rlen = write(fd, json, json_len);
-	if (rlen != (ssize_t) json_len) {
-		uwsgi_error("uwsgi_stats_pusher_file() -> write()\n");
-	}
-
-	rlen = write(fd, uspic->separator, strlen(uspic->separator));
-	if (rlen != (ssize_t) strlen(uspic->separator)) {
-		uwsgi_error("uwsgi_stats_pusher_file() -> write()\n");
-	}
-
-	close(fd);
-}
-
 static void stats_dump_var(char *k, uint16_t kl, char *v, uint16_t vl, void *data) {
 	struct uwsgi_stats *us = (struct uwsgi_stats *) data;
 	if (us->dirty) return;

core/strings.c

@@ -1,5 +1,46 @@
 #include <uwsgi.h>
 
+char *uwsgi_str_split_nget(char *str, size_t len, char what, size_t pos, size_t *rlen) {
+	size_t i;
+	size_t current = 0;
+	char *choosen = str;
+	size_t choosen_len = 0;
+	*rlen = 0;
+	for(i=0;i<len;i++) {
+		if (!choosen) choosen = str + i;
+		if (str[i] == what) {
+			if (current == pos) {
+				if (choosen_len == 0) return NULL;
+				*rlen = choosen_len;
+				return choosen;
+			}
+			current++;
+			choosen = NULL;
+			choosen_len = 0;
+		}
+		else {
+			choosen_len ++;
+		}
+	}
+
+	if (current == pos) {
+		if (choosen_len == 0) return NULL;
+		*rlen = choosen_len;
+		return choosen;
+	}
+
+	return NULL;
+}
+
+size_t uwsgi_str_occurence(char *str, size_t len, char what) {
+	size_t count = 0;
+	size_t i;
+	for(i=0;i<len;i++) {
+		if (str[i] == what) count++;
+	}
+	return count;
+}
+
 // check if a string_list contains an item
 struct uwsgi_string_list *uwsgi_string_list_has_item(struct uwsgi_string_list *list, char *key, size_t keylen) {
         struct uwsgi_string_list *usl = list;
@@ -338,3 +379,107 @@ char *uwsgi_cheap_string(char *buf, int len) {
         return buf - 1;
 }
 
+/*
+	status 0: append mode
+	status 1: single quote found
+	status 2: double quote found
+	status 3: backslash found (on 0)
+	status 4: backslash found (on 1)
+	status 5: backslash found (on 2)
+	
+*/
+char ** uwsgi_split_quoted(char *what, size_t what_len, char *sep, size_t *rlen) {
+	size_t i;
+	int status = 0;
+	char *base = uwsgi_concat2n(what, what_len, "", 0);
+	char *item = NULL;
+	char *ptr = NULL;
+	*rlen = 0;
+	char **ret = (char **) uwsgi_malloc(sizeof(char *) * (what_len+1));
+
+	for(i=0;i<what_len;i++) {
+		if (!item) {
+			item = uwsgi_malloc((what_len - i)+1);
+			ptr = item;
+		}
+
+		if (status == 0) {
+			if (base[i] == '\\') {
+				status = 3;
+			}	
+			else if (base[i] == '"') {
+				status = 2;
+			}
+			else if (base[i] == '\'') {
+				status = 1;
+			}
+			else if (strchr(sep, base[i])) {
+				*ptr++= 0;
+				ret[(*rlen)] = item; (*rlen)++;
+				item = NULL;
+			}
+			else {
+				*ptr++= base[i];
+			}
+			continue;
+		}
+
+		// backslash
+		if (status == 3) {
+			*ptr++= base[i];
+			status = 0;
+			continue;
+		}
+
+		// single quote
+		if (status == 1) {
+			if (base[i] == '\\') {
+				status = 4;
+			}
+			else if (base[i] == '\'') {
+				status = 0;
+			}
+			else {
+				*ptr++= base[i];
+			}
+			continue;
+		}
+
+		// double quote
+		if (status == 2) {
+			if (base[i] == '\\') {
+                                status = 5;
+                        }
+                        else if (base[i] == '"') {
+                        	status = 0;
+                        }
+                        else {
+                                *ptr++= base[i];
+                        }
+			continue;
+		}
+
+		// backslash single quote
+                if (status == 4) {
+                        *ptr++= base[i];
+                        status = 1;
+			continue;
+                }
+
+		// backslash double quote
+                if (status == 5) {
+                        *ptr++= base[i];
+                        status = 2;
+			continue;
+                }
+	}
+
+	if (item) {
+		*ptr++= 0;
+		ret[(*rlen)] = item; (*rlen)++;
+	}
+
+	free(base);
+
+	return ret;
+}

core/transformations.c

@@ -82,6 +82,8 @@ int uwsgi_apply_final_transformations(struct wsgi_request *wsgi_req) {
 				found_nostream = 1;
 			}
 			else {
+				// stop the chain if no chunk is available
+				if (!ut->chunk) return 0;
 				t_buf = ut->chunk->buf;
                 		t_len = ut->chunk->pos;
 				goto next;
@@ -132,6 +134,12 @@ void uwsgi_free_transformations(struct wsgi_request *wsgi_req) {
 		if (current_ut->chunk) {
 			uwsgi_buffer_destroy(current_ut->chunk);
 		}
+		if (current_ut->ub) {
+			uwsgi_buffer_destroy(current_ut->ub);
+		}
+		if (current_ut->fd > -1) {
+			close(current_ut->fd);
+		}
 		ut = ut->next;
 		free(current_ut);
 	}
@@ -144,12 +152,9 @@ struct uwsgi_transformation *uwsgi_add_transformation(struct wsgi_request *wsgi_
 		ut = ut->next;
 	}
 
-	ut = uwsgi_malloc(sizeof(struct uwsgi_transformation));
+	ut = uwsgi_calloc(sizeof(struct uwsgi_transformation));
 	ut->func = func;
-	ut->is_final = 0;
-	ut->next = NULL;
-	ut->chunk = NULL;
-	ut->can_stream = 0;
+	ut->fd = -1;
 	ut->data = data;
 
 	if (old_ut) {

core/websockets.c

@@ -59,7 +59,7 @@ static int uwsgi_websockets_check_pingpong(struct wsgi_request *wsgi_req) {
 		}
 		return 0;
 	}
-	// pong received, send anther ping
+	// pong received, send another ping
         if (now - wsgi_req->websocket_last_ping >= uwsgi.websockets_ping_freq) {
                 return uwsgi_websockets_ping(wsgi_req);
 	}

core/writer.c

@@ -120,6 +120,19 @@ error:
 
 //each protocol has its header generator
 static int uwsgi_response_add_header_do(struct wsgi_request *wsgi_req, char *key, uint16_t key_len, char *value, uint16_t value_len) {
+
+
+	// collect the header ?
+	struct uwsgi_string_list *usl = NULL;
+
+	uwsgi_foreach(usl, uwsgi.collect_headers) {
+		if (!uwsgi_strnicmp(key, key_len, usl->value, usl->custom)) {
+			if (!uwsgi_req_append(wsgi_req, usl->custom_ptr, usl->custom2, value, value_len)) {
+				wsgi_req->write_errors++ ; return -1;
+			}
+		}
+	}
+
         if (!wsgi_req->headers) {
                 wsgi_req->headers = uwsgi_buffer_new(uwsgi.page_size);
                 wsgi_req->headers->limit = UMAX16;
@@ -171,6 +184,16 @@ int uwsgi_response_write_headers_do(struct wsgi_request *wsgi_req) {
 		return UWSGI_OK;
 	}
 
+#ifdef UWSGI_ROUTING
+        // apply response routes
+        if (uwsgi_apply_response_routes(wsgi_req) == UWSGI_ROUTE_BREAK) {
+                // from now on ignore write body requests...
+                wsgi_req->ignore_body = 1;
+                return -1;
+        }
+        wsgi_req->is_response_routing = 0;
+#endif
+
 	struct uwsgi_string_list *ah = uwsgi.additional_headers;
 	while(ah) {
 		if (uwsgi_response_add_header(wsgi_req, NULL, 0, ah->value, ah->len)) return -1;
@@ -221,6 +244,19 @@ int uwsgi_response_write_body_do(struct wsgi_request *wsgi_req, char *buf, size_
 	if (wsgi_req->write_errors) return -1;
 	if (wsgi_req->ignore_body) return UWSGI_OK;
 
+#ifdef UWSGI_ROUTING
+	// special case here, we could need to set transformations before
+	if (!wsgi_req->headers_sent) {
+        	// apply response routes
+        	if (uwsgi_apply_response_routes(wsgi_req) == UWSGI_ROUTE_BREAK) {
+                	// from now on ignore write body requests...
+                	wsgi_req->ignore_body = 1;
+                	return -1;
+        	}
+        	wsgi_req->is_response_routing = 0;
+	}
+#endif
+
 	// if the transformation chain returns 1, we are in buffering mode
 	if (wsgi_req->transformed_chunk_len == 0 && wsgi_req->transformations) {
 		int t_ret = uwsgi_apply_transformations(wsgi_req, buf, len);
@@ -408,3 +444,35 @@ int uwsgi_simple_wait_write_hook(int fd, int timeout) {
 
         return ret;
 }
+
+/*
+	simplified write to client
+	(generally used as fallback)
+*/
+int uwsgi_simple_write(struct wsgi_request *wsgi_req, char *buf, size_t len) {
+
+	wsgi_req->write_pos = 0;
+
+	for(;;) {
+                int ret = wsgi_req->socket->proto_write(wsgi_req, buf, len);
+                if (ret < 0) {
+                        if (!uwsgi.ignore_write_errors) {
+                                uwsgi_error("uwsgi_simple_write()");
+                        }
+                        wsgi_req->write_errors++;
+                        return -1;
+                }
+                if (ret == UWSGI_OK) {
+                        break;
+                }
+                ret = uwsgi_wait_write_req(wsgi_req);
+                if (ret < 0) { wsgi_req->write_errors++; return -1;}
+                if (ret == 0) {
+                        uwsgi_log("uwsgi_simple_write() TIMEOUT !!!\n");
+                        wsgi_req->write_errors++;
+                        return -1;
+                }
+        }
+        return 0;
+}
+

core/xmlconf.c

@@ -151,6 +151,8 @@ void uwsgi_xml_config(char *filename, struct wsgi_request *wsgi_req, char *magic
 	}
 	/* We can safely free resources */
 
+	if (colon) colon[0] = ':';
+
 	xmlFreeDoc(doc);
 	xmlCleanupParser();
 
@@ -267,6 +269,7 @@ void uwsgi_xml_config(char *filename, struct wsgi_request *wsgi_req, char *magic
 
 	} while (!done);
 
+	if (colon) colon[0] = ':';
 
 	// we can safely free, as we have a copy of datas
 	XML_ParserFree(parser);

core/yaml.c

@@ -280,6 +280,7 @@ next:
 	}
 #endif
 
+	if (colon) colon[0] = ':';
 
 }
 

core/zeus.c

@@ -0,0 +1,66 @@
+/*
+
+	*** WORK IN PROGRESS ***
+
+	Zeus mode
+
+	A Zeus instance can load all of the available imperial monitor plugins, but instead of spawning
+	vassals it delegates actions to Emperors connected to it.
+
+	The Zeus instance try to distribute vassals evenly between Emperors.
+
+	Emperors register to one (ore more, maybe...) Zeus instance, passing various informations (like the maximum number
+	of vassals it can manage)
+
+	to spawn a Zeus:
+
+
+	# unencrypted mode
+	uwsgi --zeus "192.168.173.17:4040 /etc/uwsgi/vassals"
+	# crypted mode
+	uwsgi --zeus "192.168.173.17:4040,foobar.crt,foobar.key /etc/uwsgi/vassals"
+	# crypted + authentication mode
+	uwsgi --zeus "192.168.173.17:4040,foobar.crt,foobar.key,clients.pem /etc/uwsgi/vassals"
+
+
+	to connect an Emperor to Zeus
+
+	# unencrypted mode
+	uwsgi --emperor zeus:192.168.173.17:4040
+	# crypted mode
+	uwsgi --emperor zeus-ssl:192.168.173.17:4040
+	# crypted + authentication mode
+	uwsgi --emperor zeus-ssl:192.168.173.17:4040,myself.key
+
+
+	Protocol
+
+	(each message is a basic uwsgi packet: modifier1 pktsize modifier2 payload)
+	
+	modifier2 identifies the type of the message
+
+	0 -> I_AM_ALIVE {node: 'node001', max_vassals: '100', running_vassals: '17'} [ emperor -> zeus ]
+
+	1 -> NEW_VASSAL {name: 'foobar.ini'} [ zeus -> the choosen emperor ]
+
+	2 -> ACCEPTED_VASSAL {name: 'foobar.ini'} [ emperor -> zeus ]
+
+        3 -> CONFIG_CHUNK {name: 'foobar.ini', body: '[uwsgi].....'} [ zeus -> the choosen emperor ]
+
+	4 -> CONFIG_END {name: 'foobar.ini'} [ zeus -> the choosen emperor ]
+
+	5 -> VASSAL_SPAWNED {name: 'foobar.ini'} [the choosen emperor -> zeus]
+
+	6 -> VASSAL_REJECTED {name: 'foobar.ini'} [the choosen emperor -> zeus]
+
+	7 -> VASSAL_RELOAD {name: 'foobar.ini'} [ zeus -> the choosen emperor ]
+
+	8 -> VASSAL_UPDATE {name: 'foobar.ini'} [ zeus -> the choosen emperor ]
+
+	9 -> VASSAL_DESTROY {name: 'foobar.ini'} [ zeus -> the choosen emperor ]
+
+	10 -> VASSAL_RELOADED {name: 'foobar.ini'} [the choosen emperor -> zeus]
+
+	11 -> VASSAL_DESTROYED {name: 'foobar.ini'} [the choosen emperor -> zeus]
+
+*/

core/zlib.c

@@ -2,6 +2,8 @@
 
 char gzheader[10] = { 0x1f, 0x8b, Z_DEFLATED, 0, 0, 0, 0, 0, 0, 3 };
 
+extern struct uwsgi_server uwsgi;
+
 char *uwsgi_gzip_chunk(z_stream *z, uint32_t *crc32, char *buf, size_t len, size_t *dlen) {
 	uwsgi_crc32(crc32, buf, len);
 	return uwsgi_deflate(z, buf, len, dlen);
@@ -38,6 +40,45 @@ end:
 	return ub;
 }
 
+struct uwsgi_buffer *uwsgi_zlib_decompress(char *buf, size_t len) {
+        z_stream z;
+
+	z.zalloc = Z_NULL;
+        z.zfree = Z_NULL;
+        z.opaque = Z_NULL;
+        if (inflateInit(&z) != Z_OK) {
+		return NULL;
+        }
+
+        struct uwsgi_buffer *ub = uwsgi_buffer_new(uwsgi.page_size);
+	unsigned char out[8192];
+
+	z.next_in = (unsigned char *)buf;
+	z.avail_in = len;
+	z.next_out = out;
+
+	do {
+		z.avail_out = 8192;
+		z.next_out = out;
+		int ret = inflate(&z, Z_NO_FLUSH);
+		if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT || ret == Z_DATA_ERROR || ret == Z_MEM_ERROR) {
+			uwsgi_buffer_destroy(ub);
+			ub = NULL;
+			goto end;			
+		}
+		if (uwsgi_buffer_append(ub, (char *)out, 8192 - z.avail_out)) {
+			uwsgi_buffer_destroy(ub);
+			ub = NULL;
+			goto end;			
+		}
+	}
+	while (z.avail_out == 0);
+end:
+        inflateEnd(&z);
+        return ub;
+}
+
+
 int uwsgi_deflate_init(z_stream *z, char *dict, size_t dict_len) {
         z->zalloc = Z_NULL;
         z->zfree = Z_NULL;
@@ -54,6 +95,21 @@ int uwsgi_deflate_init(z_stream *z, char *dict, size_t dict_len) {
 	return 0;
 }
 
+int uwsgi_inflate_init(z_stream *z, char *dict, size_t dict_len) {
+        z->zalloc = Z_NULL;
+        z->zfree = Z_NULL;
+        z->opaque = Z_NULL;
+        if (inflateInit2(z, 16+MAX_WBITS) != Z_OK) {
+                return -1;
+        }
+        if (dict && dict_len) {
+                if (inflateSetDictionary(z, (Bytef *) dict, dict_len) != Z_OK) {
+                        return -1;
+                }
+        }
+        return 0;
+}
+
 int uwsgi_gzip_prepare(z_stream *z, char *dict, size_t dict_len, uint32_t *crc32) {
 	uwsgi_crc32(crc32, NULL, 0);
 	if (uwsgi_deflate_init(z, NULL, 0)) return -1;
@@ -67,12 +123,13 @@ int uwsgi_gzip_fix(z_stream *z, uint32_t crc32, struct uwsgi_buffer *ub, size_t
         if (!gzipped0) goto end;
 	if (uwsgi_buffer_append(ub, gzipped0, dlen0)) goto end;
 	free(gzipped0);
-	if (uwsgi_buffer_u32le(ub, crc32)) goto end;
-        if (uwsgi_buffer_u32le(ub, len)) goto end;
+	if (uwsgi_buffer_u32le(ub, crc32)) goto end2;
+        if (uwsgi_buffer_u32le(ub, len)) goto end2;
 	deflateEnd(z);
 	return 0;
 end:
 	if (gzipped0) free(gzipped0);
+end2:
 	deflateEnd(z);
 	return -1;
 }

examples/xmlindex-html.xsl

@@ -0,0 +1,146 @@
+<?xml version="1.0"?>
+<xsl:stylesheet
+  version="1.0"
+  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+  xmlns:html="http://www.w3.org/TR/html4/"
+  xmlns="http://www.w3.org/TR/html4/"
+  exclude-result-prefixes="html">
+  <xsl:output method="html" doctype-public="-//W3C//DTD HTML 4.01 Strict//EN"
+    indent="yes" doctype-system="http://www.w3.org/TR/html4/strict.dtd"
+    encoding="UTF-8" />
+
+  <xsl:template name="format-date">
+    <xsl:param name="date" />
+
+    <xsl:value-of select="substring-before($date, 'T')" />
+    <xsl:text> </xsl:text>
+    <xsl:value-of select="substring-after($date, 'T')" />
+  </xsl:template>
+
+  <xsl:template match="index">
+    <html>
+    <head>
+    <xsl:choose>
+      <xsl:when test="$stylesheet">
+      <link rel="stylesheet" type="text/css" media="all" href="{$stylesheet}" />
+      </xsl:when>
+      <xsl:otherwise>
+      <style type="text/css">
+      html {
+        color: #000000;
+        background-color: #fefefe;
+        font-family: sans-serif;
+      }
+      h1 {
+        font-size: 1.5em;
+        font-weight: bold;
+        margin: .67em 0;
+      }
+      th {
+        text-align: left;
+      }
+      td {
+        font-family: mono;
+      }
+      td, th {
+        padding: 0 1em;
+      }
+      td.size {
+        text-align: right;
+      }
+      :link, :visited {
+        text-decoration: none;
+      }
+      :link {
+        color: #000099;
+      }
+      :visited {
+        color: #6600cc;
+      }
+      :link:hover,
+      :visited:hover {
+        text-decoration: underline;
+      }
+      :link:focus,
+      :visited:focus {
+        text-decoration: underline;
+      }
+      :link:active,
+      :visited:active {
+        text-decoration: underline;
+      }
+      </style>
+      </xsl:otherwise>
+    </xsl:choose>
+    <title>Index of <xsl:value-of select="@path" /></title>
+    </head>
+    <body>
+    <h1>Index of <xsl:value-of select="@path" /></h1>
+    <table>
+    <tr>
+    <th class="name">Name</th>
+    <th class="mtime">Last Modified</th>
+    <th class="size">Size</th>
+    </tr>
+    <tr>
+    <td class="name" colspan="3"><a href=".." title="Parent">Parent directory</a></td>
+    </tr>
+    <xsl:apply-templates select="directory" />
+    <xsl:apply-templates select="file" />
+    </table>
+    </body>
+    </html>
+  </xsl:template>
+
+  <xsl:template match="directory">
+    <tr class="directory">
+    <td class="name">
+    <xsl:element name="a">
+      <xsl:attribute name="href">
+        <xsl:value-of select="." />
+        <xsl:text>/</xsl:text>
+      </xsl:attribute>
+      <xsl:attribute name="title">
+        <xsl:value-of select="." />
+        <xsl:text>/</xsl:text>
+      </xsl:attribute>
+      <xsl:value-of select="." />
+      <xsl:text>/</xsl:text>
+    </xsl:element>
+    </td>
+    <td class="mtime">
+    <xsl:call-template name="format-date">
+      <xsl:with-param name="date" select="@mtime" />
+    </xsl:call-template>
+    </td>
+    <td class="size">
+    <xsl:value-of select="@size" />
+    </td>
+    </tr>
+  </xsl:template>
+
+  <xsl:template match="file">
+    <tr class="file">
+    <td class="name">
+    <xsl:element name="a">
+      <xsl:attribute name="href">
+        <xsl:value-of select="." />
+      </xsl:attribute>
+      <xsl:attribute name="title">
+        <xsl:value-of select="." />
+      </xsl:attribute>
+      <xsl:value-of select="." />
+    </xsl:element>
+    </td>
+    <td class="mtime">
+    <xsl:call-template name="format-date">
+      <xsl:with-param name="date" select="@mtime" />
+    </xsl:call-template>
+    </td>
+    <td class="size">
+    <xsl:value-of select="@size" />
+    </td>
+    </tr>
+  </xsl:template>
+</xsl:stylesheet>
+

examples/xmlindex.ini

@@ -0,0 +1,17 @@
+[uwsgi]
+plugin = 0:notfound, router_xmldir, xslt
+http-socket = :8080
+
+docroot = .
+check-static = %(docroot)
+
+route-if = isdir:%(docroot)/${PATH_INFO} goto:index
+route-run = last:
+
+route-label = index
+; uncomment to link CSS stylesheet /css/default.css
+;route-run = toxslt:stylesheet=examples/xmlindex-html.xsl,params=stylesheet=/css/default.css,content_type=text/html
+; use embedded CSS
+route-run = toxslt:stylesheet=examples/xmlindex-html.xsl,params=stylesheet=,content_type=text/html
+route-run = xmldir:%(docroot)/${PATH_INFO}
+

ext/uwsgi/extconf.rb

@@ -7,7 +7,14 @@ Net::HTTP.start("uwsgi.it") do |http|
   end
 end
 
-system("bash install.sh rack #{Dir.pwd}/uwsgi.ruby")
+major,minor = RUBY_VERSION.split('.')
+if major.to_i >= 2 or (major.to_i == 1 and minor.to_i >= 9)
+  # a trick for installations with messy PATH
+  ENV['UWSGICONFIG_RUBYPATH'] = File.join(RbConfig::CONFIG['bindir'], RbConfig::CONFIG['ruby_install_name']).sub(/.*\s.*/m, '"\&"')
+  system("bash install.sh ruby2 #{Dir.pwd}/uwsgi.ruby")
+else
+  system("bash install.sh rack #{Dir.pwd}/uwsgi.ruby")
+end
 
 open("Makefile", "w") do |file|
   file.write("all:\n")

hello_world.py

@@ -1,54 +0,0 @@
-import uwsgi
-if uwsgi.loop == 'gevent':
-    import gevent
-
-from threading import Thread
-import time
-from uwsgidecorators import postfork
-
-def foobar():
-    while True:
-        time.sleep(3)
-        print "threee second elapsed in worker %d" % uwsgi.worker_id()
-
-@postfork
-def spawn_thread():
-    t = Thread(target=foobar)
-    t.daemon = True
-    t.start()
-
-@postfork
-def spawn_thread2():
-    t = Thread(target=foobar)
-    t.daemon = True
-    t.start()
-
-def gl_func():
-    while True:
-        gevent.sleep(2)
-        print "i am a greenltet running in worker %d" % uwsgi.worker_id()
-
-@postfork
-def spawn_greenlet():
-    gevent.spawn(gl_func)
-
-print uwsgi.version
-print uwsgi.workers()
-try:
-    uwsgi.cache_set('foo', "Hello World from cache")
-except:
-    pass
-def application(env, start_response):
-    print env['wsgi.input'].read()
-    if uwsgi.loop == 'gevent':
-        gevent.sleep()
-    start_response('200 OK', [('Content-Type', 'text/html')])
-    yield "foobar<br/>"
-    if uwsgi.loop == 'gevent':
-        gevent.sleep(3)
-    yield str(env['wsgi.input'].fileno())
-    yield "<h1>Hello World</h1>"
-    try:
-        yield uwsgi.cache_get('foo')
-    except:
-        pass

hello_world_rrdtool.py

@@ -1,31 +0,0 @@
-import uwsgi
-import time
-import rrdtool
-
-# rrdtool create test.rrd --start 1270879004 -s 10 DS:requests:COUNTER:300:U:U RRA:AVERAGE:0.5:3:105120
-
-s_freq = 10
-
-# this task will be executed every s_freq seconds
-def rrdtool_updater(sig, sec):
-	rrdtool.update('test.rrd', str(int(time.time()))+':'+str(uwsgi.total_requests()))
-
-	
-uwsgi.register_timer(0, s_freq, uwsgi.KIND_WORKER, rrdtool_updater)
-	
-
-
-def hello_world(env, start_response):
-	start_response('200 Ok', [('Content-type', 'text/plain')])
-	return 'Hello world !'
-
-
-def graph(env, start_response):
-	start_response('200 Ok', [('Content-type', 'image/png')])
-	now = int(time.time())
-	graph_range = (3600*24)
-	rrdtool.graph('uwsgi_graph.png', '--start', str(now - graph_range), '--end', str(now), 'DEF:urequests=test.rrd:requests:AVERAGE', 'LINE2:urequests#00FF00')
-	# send file to client
-	uwsgi.sendfile('uwsgi_graph.png')
-
-uwsgi.applications = {'/': hello_world, '/graph':graph}

lib/linux_ns.c

@@ -66,11 +66,17 @@ void linux_namespace_start(void *argv) {
 			uwsgi_error("clone()");
 			exit(1);
 		}
-
+#if defined(MS_REC) && defined(MS_PRIVATE)
+		if (mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL)) {
+			uwsgi_error("mount()");
+			exit(1);
+		}
+#endif
 		// run the post-jail scripts
 		if (setenv("UWSGI_JAIL_PID", uwsgi_num2str((int) pid), 1)) {
 			uwsgi_error("setenv()");
 		}
+		uwsgi_hooks_run(uwsgi.hook_post_jail, "post-jail", 1);
         	struct uwsgi_string_list *usl = uwsgi.exec_post_jail;
         	while(usl) {
                 	uwsgi_log("running \"%s\" (post-jail)...\n", usl->value);
@@ -82,6 +88,13 @@ void linux_namespace_start(void *argv) {
                 	usl = usl->next;
         	}
 
+		uwsgi_foreach(usl, uwsgi.call_post_jail) {
+                        if (uwsgi_call_symbol(usl->value)) {
+                                uwsgi_log("unable to call function \"%s\"\n", usl->value);
+				exit(1);
+                        }
+                }
+
 		uwsgi_log("waiting for jailed master (pid: %d) death...\n", (int) pid);
 		pid = waitpid(pid, &waitpid_status, 0);
 		if (pid < 0) {
@@ -167,6 +180,7 @@ void linux_namespace_jail() {
 	uwsgi_log("remounting /proc\n");
 	if (mount("proc", "/proc", "proc", 0, NULL)) {
 		uwsgi_error("mount()");
+		exit(1);
 	}
 
 	struct uwsgi_string_list *usl = uwsgi.ns_keep_mount;

logo_uWSGI.svg

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 16.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" id="Livello_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+   width="768px" height="272.667px" viewBox="0 0 768 272.667" enable-background="new 0 0 768 272.667" xml:space="preserve">
+<g>
+	<path fill="#AEC84D" d="M170.667,41.334"/>
+	<path fill="#AEC84D" d="M46.167,106.667v92.5c0,0-0.667,52.667,48.5,51.5c7.667-0.333,36,1,43-21c0-0.5,0,17,0,17h34l0.062-140h-34
+		l-0.062,86.5c0,0,1,31-28,29.5s-28.5-27-28.5-27l-0.167-89H46.167z"/>
+	<polygon fill="#141215" points="227,250.334 241,250.334 286.667,137.334 332.333,250.001 346.333,250.001 403,41.334 
+		368.667,32.667 334.333,161.667 293.667,60.001 279.333,60.001 240,160.667 204.667,32.667 170.667,41.334 	"/>
+	<path fill="#141215" d="M402,203c0,0,8.667,26.001,23,35.334s38.666,12.999,50.333,12.666s71.001-1.333,71.667-56.333
+		c5-28-19.333-48.334-26-52.334s-28.334-18-45.667-23s-34.334-16-35.667-24.666s0.001-34,37.334-34.334
+		c26,2.668,27,13.668,31,19.668l7,14.332l28.666-13.332c0,0-11.334-27-14-29.334s-13.333-19-55.333-18.666
+		c-42,0.332-66.666,17.666-68.333,47.666s4.666,44,35.333,62.666c19,10.334,39.001,12.667,59.667,28.334
+		c14.333,11.667,11.334,25.001,11,30.667s-7.334,21.666-36.334,20.333S441,209.668,439,206.334s-9-17-9-17L402,203z"/>
+	<rect x="710.667" y="36.334" fill="#141215" width="35.333" height="211.333"/>
+	<path fill="#141215" d="M636.333,135.001v27.666h27.333v56c0,0-8.334,5.001-26.667,4.334s-47.332,1.666-49.666-81.667
+		s37.334-80.667,42-80.667s28,0.334,40,33.334C669.667,94.334,698,80.667,698,80.667s-12.334-50.333-67-47.666
+		c-54.666,2.666-75.666,30.999-78.666,102c-3,71,21.999,117.334,81.666,115s64-7.334,64-7.334l-0.083-107.583L636.333,135.001z"/>
+	<g>
+		<circle fill="#AEC84D" cx="521.333" cy="71.001" r="11.667"/>
+		<circle fill="#252326" cx="521.333" cy="71.001" r="3.5"/>
+	</g>
+	<g>
+		<path fill="none" d="M81.147,185.163L81,106.667H46.167v90.88C56.139,192.016,68.027,187.752,81.147,185.163z"/>
+		<path fill="none" d="M171.729,106.667h-34l-0.057,78.023c12.606,2.254,24.141,6.043,34.017,11.019L171.729,106.667z"/>
+		<path opacity="0.1" fill="#FFFFFF" d="M46.167,199.167c0,0-0.667,52.667,48.5,51.5c7.667-0.333,36,1,43-21c0-0.5,0,17,0,17h34
+			l0.023-50.958c-9.876-4.976-21.411-8.765-34.017-11.019l-0.006,8.477c0,0,1,31-28,29.5s-28.5-27-28.5-27l-0.02-10.504
+			c-13.12,2.589-25.008,6.853-34.98,12.384V199.167z"/>
+	</g>
+	<g>
+		<path fill="none" d="M342.89,129.517l-8.557,32.15l-13.896-34.738c-22.89-2.918-44.071-6.524-63.071-10.708L240,160.667
+			l-14.526-52.621c-16.399-4.896-30.286-10.312-41.175-16.132L227,250.334h14l45.667-113l45.667,112.667h14l31.898-117.459
+			C366.127,131.707,354.33,130.695,342.89,129.517z"/>
+		<path opacity="0.1" fill="#FFFFFF" d="M403,41.334l-34.333-8.667l-25.776,96.85c11.44,1.178,23.237,2.19,35.341,3.025L403,41.334z
+			"/>
+		<path opacity="0.1" fill="#FFFFFF" d="M204.667,32.667l-34,8.667l13.633,50.58c10.889,5.82,24.775,11.236,41.175,16.132
+			L204.667,32.667z"/>
+		<path opacity="0.1" fill="#FFFFFF" d="M293.667,60.001h-14.333l-21.967,56.22c19,4.185,40.182,7.79,63.071,10.708L293.667,60.001z
+			"/>
+	</g>
+	<path opacity="0.1" fill="#FFFFFF" d="M474.333,33.001c-42,0.332-66.666,17.666-68.333,47.666
+		c-1.409,25.351,2.897,39.276,22.77,54.247c10.646,0.275,21.452,0.419,32.396,0.419c15.9,0,31.514-0.299,46.756-0.872
+		c-9.466-5.486-21.856-12.032-32.589-15.128c-17.333-5-34.334-16-35.667-24.666s0.001-34,37.334-34.334
+		c26,2.668,27,13.668,31,19.668l7,14.332l28.666-13.332c0,0-11.334-27-14-29.334S516.333,32.667,474.333,33.001z"/>
+	<path opacity="0.1" fill="#FFFFFF" d="M631,33.001c-53.87,2.627-75.047,30.182-78.522,98.93c11.947-0.916,23.576-2.007,34.838-3.26
+		c1.845-70.377,37.603-68.004,42.019-68.004c4.666,0,28,0.334,40,33.334C669.667,94.334,698,80.667,698,80.667
+		S685.666,30.334,631,33.001z"/>
+	<path opacity="0.1" fill="#FFFFFF" d="M710.667,103.59c14.42-5.033,26.342-10.521,35.333-16.36V36.334h-35.333V103.59z"/>
+</g>
+</svg>

plugins/airbrake/airbrake_plugin.c

@@ -229,6 +229,7 @@ static void uwsgi_airbrake_loop(struct uwsgi_thread *ut) {
 	curl_easy_setopt(curl, CURLOPT_POST, 1L);
 	struct curl_slist *expect = NULL; expect = curl_slist_append(expect, "Expect:");
 	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, expect);
+	curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
 
 	struct uwsgi_airbrake_config *uacc = (struct uwsgi_airbrake_config *) ut->data;
 	char *opts = uwsgi_str(uacc->arg);