add heatbeat url, add stream for api-server

@@ -41,6 +41,14 @@ max_connections     1000;
 # @remark: donot support reload.
 # default: on
 daemon              on;
+# heartbeat to api server
+# when startup, srs will heartbeat to this api.
+# @remark: must be a restful http api url, where SRS will POST with following data:
+#   {
+#       "device_id": "my-srs-device",
+#       "ip": "192.168.1.100"
+#   }
+heartbeat           http://127.0.0.1:8085/api/v1/servers;
 
 #############################################################################################
 # HTTP sections

@@ -428,8 +428,8 @@ class RESTServers(object):
         return None
         
     def __refresh_nodes(self):
-        has_dead_node = False
         while len(self.__nodes) > 0:
+            has_dead_node = False
             for node in self.__nodes:
                 if node.dead():
                     self.__nodes.remove(node)
@@ -639,6 +639,22 @@ class RESTServers(object):
                                     "stream6": "http://demo.chnvideo.com:8085/api/v1/servers?id=ingest&action=hls&device_id=chnvideo-meiyi-cubieboard-bk&stream=live/stream6",
                                     "stream7": "http://demo.chnvideo.com:8085/api/v1/servers?id=ingest&action=hls&device_id=chnvideo-meiyi-cubieboard-bk&stream=live/stream7"
                                 }
+                            },
+                            "meiyi-dev1": {
+                                "rtmp": {
+                                    "livesteam": "http://demo.chnvideo.com:8085/api/v1/servers?id=ingest&action=rtmp&device_id=chnvideo-meiyi-cubieboard-dev1&stream=live/livestream"
+                                },
+                                "hls": {
+                                    "livesteam": "http://demo.chnvideo.com:8085/api/v1/servers?id=ingest&action=hls&device_id=chnvideo-meiyi-cubieboard-dev1&stream=live/livestream"
+                                }
+                            },
+                            "meiyi-dev2": {
+                                "rtmp": {
+                                    "livesteam": "http://demo.chnvideo.com:8085/api/v1/servers?id=ingest&action=rtmp&device_id=chnvideo-meiyi-cubieboard-dev2&stream=live/livestream"
+                                },
+                                "hls": {
+                                    "livesteam": "http://demo.chnvideo.com:8085/api/v1/servers?id=ingest&action=hls&device_id=chnvideo-meiyi-cubieboard-dev2&stream=live/livestream"
+                                }
                             }
                         }
                     }
@@ -732,8 +748,8 @@ class RESTNodes(object):
         return None
         
     def __refresh_nodes(self):
-        has_dead_node = False
         while len(self.__nodes) > 0:
+            has_dead_node = False
             for node in self.__nodes:
                 if node.dead():
                     self.__nodes.remove(node)

@@ -509,7 +509,7 @@ int SrsConfig::reload()
     //
     // always support reload without additional code:
     //      chunk_size, ff_log_dir, max_connections,
-    //      bandcheck, http_hooks
+    //      bandcheck, http_hooks, heartbeat
 
     // merge config: listen
     if (!srs_directive_equals(root->get("listen"), old_root->get("listen"))) {
@@ -1422,6 +1422,17 @@ string SrsConfig::get_pid_file()
     return conf->arg0();
 }
 
+string SrsConfig::get_heartbeat_url()
+{
+    SrsConfDirective* conf = root->get("heartbeat");
+    
+    if (!conf) {
+        return "";
+    }
+    
+    return conf->arg0();
+}
+
 int SrsConfig::get_pithy_print_publish()
 {
     SrsConfDirective* pithy = root->get("pithy_print");

@@ -173,6 +173,7 @@ public:
     virtual int                 get_max_connections();
     virtual SrsConfDirective*   get_listen();
     virtual std::string         get_pid_file();
+    virtual std::string         get_heartbeat_url();
     virtual int                 get_pithy_print_publish();
     virtual int                 get_pithy_print_forwarder();
     virtual int                 get_pithy_print_encoder();