fix #180: crash for multiple edge publishing the same stream. 0.9.220.

@@ -208,6 +208,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v1.0, 2014-09-30, fix [#180](https://github.com/winlinvip/simple-rtmp-server/issues/180), crash for multiple edge publishing the same stream. 0.9.220.
 * v1.0, 2014-09-26, fix hls bug, refine config and log, according to clion of jetbrains. 0.9.216. 
 * v1.0, 2014-09-25, fix [#177](https://github.com/winlinvip/simple-rtmp-server/issues/177), dvr segment add config dvr_wait_keyframe. 0.9.213.
 * v1.0, 2014-08-28, fix [#167](https://github.com/winlinvip/simple-rtmp-server/issues/167), add openssl includes to utest. 0.9.209.

@@ -814,13 +814,25 @@ int SrsPublishEdge::on_client_publish()
         return ret;
     }
     
-    if ((ret = forwarder->start()) != ERROR_SUCCESS) {
-        return ret;
+    // @see https://github.com/winlinvip/simple-rtmp-server/issues/180
+    // to avoid multiple publish the same stream on the same edge,
+    // directly enter the publish stage.
+    if (true) {
+        SrsEdgeState pstate = state;
+        state = SrsEdgeStatePublish;
+        srs_trace("edge change from %d to state %d (push).", pstate, state);
     }
     
-    SrsEdgeState pstate = state;
-    state = SrsEdgeStatePublish;
-    srs_trace("edge change from %d to state %d (push).", pstate, state);
+    // start to forward stream to origin.
+    ret = forwarder->start();
+    
+    // @see https://github.com/winlinvip/simple-rtmp-server/issues/180
+    // when failed, revert to init
+    if (ret != ERROR_SUCCESS) {
+        SrsEdgeState pstate = state;
+        state = SrsEdgeStateInit;
+        srs_trace("edge revert from %d to state %d (push). ret=%d", pstate, state, ret);
+    }
     
     return ret;
 }

@@ -57,7 +57,7 @@ enum SrsEdgeState
     // for play edge
     SrsEdgeStatePlay = 100,
     // play stream from origin, ingest stream
-    SrsEdgeStateIngestConnected,
+    SrsEdgeStateIngestConnected = 101,
     
     // for publish edge
     SrsEdgeStatePublish = 200,

@@ -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 "219"
+#define VERSION_REVISION "220"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"

@@ -138,6 +138,11 @@ void show_macro_features()
 int main(int argc, char** argv) 
 {
     int ret = ERROR_SUCCESS;
+    
+// TODO: FIXME: remove following.
+char* ptr = new char[1024];
+delete ptr;
+ptr[0] = 0;
 
     // TODO: support both little and big endian.
     srs_assert(srs_is_little_endian());