fix bug of edge, refine state to user state.

@@ -309,6 +309,7 @@ int SrsEdgeIngester::connect_server()
 SrsEdge::SrsEdge()
 {
     state = SrsEdgeStateInit;
+    user_state = SrsEdgeUserStateInit;
     ingester = new SrsEdgeIngester();
 }
 
@@ -333,9 +334,10 @@ int SrsEdge::on_client_play()
     int ret = ERROR_SUCCESS;
     
     // error state.
-    if (state == SrsEdgeStateAborting || state == SrsEdgeStateReloading) {
+    if (user_state != SrsEdgeUserStateInit) {
         ret = ERROR_RTMP_EDGE_PLAY_STATE;
-        srs_error("invalid state for client to play stream on edge. state=%d, ret=%d", state, ret);
+        srs_error("invalid state for client to play stream on edge. "
+            "state=%d, user_state=%d, ret=%d", state, user_state, ret);
         return ret;
     }
     
@@ -350,22 +352,32 @@ int SrsEdge::on_client_play()
 
 void SrsEdge::on_all_client_stop()
 {
-    if (state == SrsEdgeStateIngestConnected) {
+    // when all client disconnected,
+    // and edge is ingesting origin stream, abort it.
+    if (state == SrsEdgeStatePlay || state == SrsEdgeStateIngestConnected) {
         ingester->stop();
-    }
     
-    SrsEdgeState pstate = state;
-    state = SrsEdgeStateInit;
-    srs_trace("edge change from %d to state %d (init).", pstate, state);
+        SrsEdgeState pstate = state;
+        state = SrsEdgeStateInit;
+        srs_trace("edge change from %d to state %d (init).", pstate, state);
+        
+        return;
+    }
 }
 
 int SrsEdge::on_ingest_play()
 {
     int ret = ERROR_SUCCESS;
     
+    // when already connected(for instance, reconnect for error), ignore.
+    if (state == SrsEdgeStateIngestConnected) {
+        return ret;
+    }
+    
+    srs_assert(state == SrsEdgeStatePlay);
+    
     SrsEdgeState pstate = state;
     state = SrsEdgeStateIngestConnected;
-    
     srs_trace("edge change from %d to state %d (ingest connected).", pstate, state);
     
     return ret;

@@ -41,7 +41,7 @@ class SrsCommonMessage;
 class ISrsProtocolReaderWriter;
 
 /**
-* the state of edge
+* the state of edge, auto machine
 */
 enum SrsEdgeState
 {
@@ -52,8 +52,15 @@ enum SrsEdgeState
     SrsEdgeStateIngestConnected,
     // publish stream to edge, forward to origin
     SrsEdgeStateForwardConnected,
-    SrsEdgeStateAborting,
-    SrsEdgeStateReloading,
+};
+
+/**
+* the state of edge from user, manual machine
+*/
+enum SrsEdgeUserState
+{
+    SrsEdgeUserStateInit = 0,
+    SrsEdgeUserStateReloading = 100,
 };
 
 /**
@@ -96,6 +103,7 @@ class SrsEdge
 {
 private:
     SrsEdgeState state;
+    SrsEdgeUserState user_state;
     SrsEdgeIngester* ingester;
 public:
     SrsEdge();

@@ -89,6 +89,9 @@ int SrsThread::start()
         return ret;
     }
     
+    // we set to loop to true for thread to run.
+    loop = true;
+    
     // wait for cid to ready, for parent thread to get the cid.
     while (_cid < 0) {
         st_usleep(10 * SRS_TIME_MILLISECONDS);
@@ -130,7 +133,6 @@ void SrsThread::thread_cycle()
     srs_assert(handler);
     handler->on_thread_start();
     
-    loop = true;
     while (loop) {
         if ((ret = handler->on_before_cycle()) != ERROR_SUCCESS) {
             srs_warn("thread on before cycle failed, ignored and retry, ret=%d", ret);

@@ -109,6 +109,7 @@ public:
     * user stop the thread.
     * @remark ignore any error of cycle of handler.
     * @remark user can start multiple times, ignore if already started.
+    * @remark wait for the cid is set by thread pfn.
     */
     virtual int start();
     /**