fix #110, thread start segment fault, thread cycle stop destroy thread. 0.9.136

@@ -242,6 +242,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v1.0, 2014-06-25, fix [#110](https://github.com/winlinvip/simple-rtmp-server/issues/110), thread start segment fault, thread cycle stop destroy thread. 0.9.136
 * v1.0, 2014-06-25, fix [#109](https://github.com/winlinvip/simple-rtmp-server/issues/109), fix the system jump time, adjust system startup time. 0.9.135
 * <strong>v1.0, 2014-06-27, [1.0 mainline5(0.9.134)](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0.mainline5) released. 41573 lines.</strong>
 * v1.0, 2014-06-27, SRS online 30days with RTMP/HLS.

@@ -70,6 +70,7 @@ heartbeat {
     #   {
     #       "summaries": summaries object.
     #   }
+    # @remark: optional config.
     # default: off
     summaries       off;
 }

@@ -910,7 +910,7 @@ int SrsServer::accept_client(SrsListenerType type, st_netfd_t client_stfd)
     if ((ret = conn->start()) != ERROR_SUCCESS) {
         return ret;
     }
-    srs_verbose("conn started success   .");
+    srs_verbose("conn started success.");
 
     srs_verbose("accept client finished. conns=%d, ret=%d", (int)conns.size(), ret);
     

@@ -67,6 +67,12 @@ SrsThread::SrsThread(ISrsThreadHandler* thread_handler, int64_t interval_us, boo
     loop = false;
     _cid = -1;
     _joinable = joinable;
+    
+    // in start(), the thread cycle method maybe stop and remove the thread itself,
+    // and the thread start() is waiting for the _cid, and segment fault then.
+    // @see https://github.com/winlinvip/simple-rtmp-server/issues/110
+    // thread will set _cid, callback on_thread_start(), then wait for the can_run signal.
+    can_run = false;
 }
 
 SrsThread::~SrsThread()
@@ -102,6 +108,9 @@ int SrsThread::start()
         st_usleep(10 * SRS_TIME_MILLISECONDS);
     }
     
+    // now, cycle thread can run.
+    can_run = true;
+    
     return ret;
 }
 
@@ -143,6 +152,11 @@ void SrsThread::thread_cycle()
     srs_assert(handler);
     handler->on_thread_start();
     
+    // wait for cid to ready, for parent thread to get the cid.
+    while (!can_run && loop) {
+        st_usleep(10 * SRS_TIME_MILLISECONDS);
+    }
+    
     while (loop) {
         if ((ret = handler->on_before_cycle()) != ERROR_SUCCESS) {
             srs_warn("thread on before cycle failed, ignored and retry, ret=%d", ret);

@@ -88,6 +88,7 @@ private:
     st_thread_t tid;
     int _cid;
     bool loop;
+    bool can_run;
     bool _joinable;
 private:
     ISrsThreadHandler* handler;

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR "0"
 #define VERSION_MINOR "9"
-#define VERSION_REVISION "135"
+#define VERSION_REVISION "136"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"