fix #84: unpublish source when edge stop, clear gop cache

@@ -105,6 +105,9 @@ void SrsEdgeIngester::stop()
     srs_freep(client);
     srs_freep(io);
     kbps->set_io(NULL, NULL);
+    
+    // notice to unpublish.
+    _source->on_unpublish();
 }
 
 int SrsEdgeIngester::cycle()
@@ -285,8 +288,8 @@ int SrsEdgeIngester::connect_server()
     }
     
     // open socket.
-    srs_trace("connect edge stream=%s, tcUrl=%s to server=%s, port=%d",
-        _req->stream.c_str(), _req->tcUrl.c_str(), server.c_str(), port);
+    srs_trace("edge connected, can_publish=%d, url=%s/%s, server=%s:%d",
+        _source->can_publish(), _req->tcUrl.c_str(), _req->stream.c_str(), server.c_str(), port);
 
     // TODO: FIXME: extract utility method
     int sock = socket(AF_INET, SOCK_STREAM, 0);

@@ -271,7 +271,7 @@ int SrsRtmpConn::stream_service_cycle()
         srs_error("set chunk_size=%d failed. ret=%d", chunk_size, ret);
         return ret;
     }
-    srs_trace("set chunk_size=%d success", chunk_size);
+    srs_info("set chunk_size=%d success", chunk_size);
     
     // find a source to serve.
     SrsSource* source = NULL;
@@ -296,16 +296,16 @@ int SrsRtmpConn::stream_service_cycle()
     }
     
     bool enabled_cache = _srs_config->get_gop_cache(req->vhost);
-    srs_trace("source found, ip=%s, url=%s, enabled_cache=%d, edge=%d", 
-        ip.c_str(), req->get_stream_url().c_str(), enabled_cache, vhost_is_edge);
+    srs_trace("source url=%s, ip=%s, cache=%d, is_edge=%d, id=%d", 
+        req->get_stream_url().c_str(), ip.c_str(), enabled_cache, vhost_is_edge, source->source_id());
     source->set_cache(enabled_cache);
     
     switch (type) {
         case SrsRtmpConnPlay: {
             srs_verbose("start to play stream %s.", req->stream.c_str());
             
-            // notice edge to start for the first client.
             if (vhost_is_edge) {
+                // notice edge to start for the first client.
                 if ((ret = source->on_edge_start_play()) != ERROR_SUCCESS) {
                     srs_error("notice edge start play stream failed. ret=%d", ret);
                     return ret;
@@ -568,15 +568,18 @@ int SrsRtmpConn::fmle_publish(SrsSource* source)
     
     SrsPithyPrint pithy_print(SRS_STAGE_PUBLISH_USER);
     
-    // notify the hls to prepare when publish start.
-    if ((ret = source->on_publish()) != ERROR_SUCCESS) {
-        srs_error("fmle hls on_publish failed. ret=%d", ret);
-        return ret;
-    }
-    srs_verbose("fmle hls on_publish success.");
-    
     bool vhost_is_edge = _srs_config->get_vhost_is_edge(req->vhost);
     
+    // when edge, ignore the publish event, directly proxy it.
+    if (vhost_is_edge) {
+        // notify the hls to prepare when publish start.
+        if ((ret = source->on_publish()) != ERROR_SUCCESS) {
+            srs_error("fmle hls on_publish failed. ret=%d", ret);
+            return ret;
+        }
+        srs_verbose("fmle hls on_publish success.");
+    }
+    
     while (true) {
         // switch to other st-threads.
         st_usleep(0);
@@ -644,15 +647,18 @@ int SrsRtmpConn::flash_publish(SrsSource* source)
     
     SrsPithyPrint pithy_print(SRS_STAGE_PUBLISH_USER);
     
-    // notify the hls to prepare when publish start.
-    if ((ret = source->on_publish()) != ERROR_SUCCESS) {
-        srs_error("flash hls on_publish failed. ret=%d", ret);
-        return ret;
-    }
-    srs_verbose("flash hls on_publish success.");
-    
     bool vhost_is_edge = _srs_config->get_vhost_is_edge(req->vhost);
     
+    // when edge, ignore the publish event, directly proxy it.
+    if (vhost_is_edge) {
+        // notify the hls to prepare when publish start.
+        if ((ret = source->on_publish()) != ERROR_SUCCESS) {
+            srs_error("flash hls on_publish failed. ret=%d", ret);
+            return ret;
+        }
+        srs_verbose("flash hls on_publish success.");
+    }
+    
     while (true) {
         // switch to other st-threads.
         st_usleep(0);

@@ -465,6 +465,7 @@ SrsSource::SrsSource(SrsRequest* req)
     
     frame_rate = sample_rate = 0;
     _can_publish = true;
+    _source_id = -1;
     
     play_edge = new SrsPlayEdge();
     publish_edge = new SrsPublishEdge();
@@ -791,6 +792,24 @@ int SrsSource::on_dvr_request_sh()
     return ret;
 }
 
+int SrsSource::on_source_id_changed(int id)
+{
+    int ret = ERROR_SUCCESS;
+    
+    if (_source_id == id) {
+        return ret;
+    }
+    
+    _source_id = id;
+    
+    return ret;
+}
+
+int SrsSource::source_id()
+{
+    return _source_id;
+}
+
 bool SrsSource::can_publish()
 {
     return _can_publish;
@@ -1181,6 +1200,10 @@ int SrsSource::on_publish()
     
     _can_publish = false;
     
+    // whatever, the publish thread is the source or edge source,
+    // save its id to srouce id.
+    on_source_id_changed(_srs_context->get_id());
+    
     // create forwarders
     if ((ret = create_forwarders()) != ERROR_SUCCESS) {
         srs_error("create forwarders failed. ret=%d", ret);
@@ -1239,6 +1262,7 @@ void SrsSource::on_unpublish()
     srs_trace("clear cache/metadata/sequence-headers when unpublish.");
     
     _can_publish = true;
+    _source_id = -1;
 }
 
  int SrsSource::create_consumer(SrsConsumer*& consumer)

@@ -229,6 +229,12 @@ public:
     */
     static void destroy();
 private:
+    // source id,
+    // for publish, it's the publish client id.
+    // for edge, it's the edge ingest id.
+    // when source id changed, for example, the edge reconnect,
+    // invoke the on_source_id_changed() to let all clients know.
+    int _source_id;
     // deep copy of client request.
     SrsRequest* _req;
     // to delivery stream to clients.
@@ -298,6 +304,7 @@ public:
     virtual int on_reload_vhost_hls(std::string vhost);
     virtual int on_reload_vhost_dvr(std::string vhost);
     virtual int on_reload_vhost_transcode(std::string vhost);
+// for the tools callback
 public:
     // for the SrsForwarder to callback to request the sequence headers.
     virtual int on_forwarder_start(SrsForwarder* forwarder);
@@ -305,6 +312,11 @@ public:
     virtual int on_hls_start();
     // for the SrsDvr to callback to request the sequence headers.
     virtual int on_dvr_request_sh();
+    // source id changed.
+    virtual int on_source_id_changed(int id);
+    // get current source id.
+    virtual int source_id();
+// logic data methods
 public:
     virtual bool can_publish();
     virtual int on_meta_data(SrsMessage* msg, SrsOnMetaDataPacket* metadata);
@@ -318,6 +330,7 @@ public:
     */
     virtual int on_publish();
     virtual void on_unpublish();
+// consumer methods
 public:
     virtual int create_consumer(SrsConsumer*& consumer);
     virtual void on_consumer_destroy(SrsConsumer* consumer);

@@ -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 "118"
+#define VERSION_REVISION "119"
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"