diff --git a/trunk/src/app/srs_app_hybrid.cpp b/trunk/src/app/srs_app_hybrid.cpp
index a43e08800..6a8d3100c 100644
--- a/trunk/src/app/srs_app_hybrid.cpp
+++ b/trunk/src/app/srs_app_hybrid.cpp
@@ -91,8 +91,8 @@ srs_error_t SrsServerAdapter::run()
         return srs_error_wrap(err, "ingest");
     }
 
-    if ((err = srs->cycle()) != srs_success) {
-        return srs_error_wrap(err, "main cycle");
+    if ((err = srs->start()) != srs_success) {
+        return srs_error_wrap(err, "start");
     }
 
     return err;
@@ -151,29 +151,17 @@ srs_error_t SrsHybridServer::run()
 {
     srs_error_t err = srs_success;
 
-    // TODO: FIXME: Identify master server directly.
-    // Run master server in this main thread.
-    SrsServerAdapter* master_server = NULL;
-
     vector<ISrsHybridServer*>::iterator it;
     for (it = servers.begin(); it != servers.end(); ++it) {
         ISrsHybridServer* server = *it;
 
-        if (!master_server) {
-            master_server = dynamic_cast<SrsServerAdapter*>(server);
-            if (master_server) {
-                continue;
-            }
-        }
-
         if ((err = server->run()) != srs_success) {
             return srs_error_wrap(err, "run server");
         }
     }
 
-    if (master_server) {
-        return master_server->run();
-    }
+    // Wait for all server to quit.
+    srs_thread_exit(NULL);
 
     return err;
 }
diff --git a/trunk/src/app/srs_app_server.cpp b/trunk/src/app/srs_app_server.cpp
index f2c2c314f..d3d520ba1 100644
--- a/trunk/src/app/srs_app_server.cpp
+++ b/trunk/src/app/srs_app_server.cpp
@@ -728,6 +728,7 @@ SrsServer::SrsServer()
     http_server = new SrsHttpServer(this);
     http_heartbeat = new SrsHttpHeartbeat();
     ingester = new SrsIngester();
+    trd_ = new SrsSTCoroutine("srs", this, _srs_context->get_id());
 }
 
 SrsServer::~SrsServer()
@@ -738,7 +739,9 @@ SrsServer::~SrsServer()
 void SrsServer::destroy()
 {
     srs_warn("start destroy server");
-    
+
+    srs_freep(trd_);
+
     dispose();
     
     srs_freep(http_api_mux);
@@ -1101,6 +1104,17 @@ srs_error_t SrsServer::ingest()
     return err;
 }
 
+srs_error_t SrsServer::start()
+{
+    srs_error_t err = srs_success;
+
+    if ((err = trd_->start()) != srs_success) {
+        return srs_error_wrap(err, "start");
+    }
+
+    return err;
+}
+
 srs_error_t SrsServer::cycle()
 {
     srs_error_t err = srs_success;
@@ -1249,6 +1263,10 @@ srs_error_t SrsServer::do_cycle()
         int dynamic_max = srs_max(max, heartbeat_max_resolution);
         
         for (int i = 0; i < dynamic_max; i++) {
+            if ((err = trd_->pull()) != srs_success) {
+                return srs_error_wrap(err, "pull");
+            }
+
             srs_usleep(SRS_SYS_CYCLE_INTERVAL);
             
             // asprocess check.
diff --git a/trunk/src/app/srs_app_server.hpp b/trunk/src/app/srs_app_server.hpp
index 60a69d517..ea83417fc 100644
--- a/trunk/src/app/srs_app_server.hpp
+++ b/trunk/src/app/srs_app_server.hpp
@@ -260,7 +260,8 @@ public:
 
 // TODO: FIXME: Rename to SrsLiveServer.
 // SRS RTMP server, initialize and listen, start connection service thread, destroy client.
-class SrsServer : virtual public ISrsReloadHandler, virtual public ISrsSourceHandler, virtual public ISrsResourceManager
+class SrsServer : virtual public ISrsReloadHandler, virtual public ISrsSourceHandler
+    , virtual public ISrsResourceManager, virtual public ISrsCoroutineHandler
 {
 private:
     // TODO: FIXME: Extract an HttpApiServer.
@@ -269,6 +270,7 @@ private:
     SrsHttpHeartbeat* http_heartbeat;
     SrsIngester* ingester;
     SrsResourceManager* conn_manager;
+    SrsCoroutine* trd_;
 private:
     // The pid file fd, lock the file write when server is running.
     // @remark the init.d script should cleanup the pid file, when stop service,
@@ -315,6 +317,9 @@ public:
     virtual srs_error_t register_signal();
     virtual srs_error_t http_handle();
     virtual srs_error_t ingest();
+    virtual srs_error_t start();
+// interface ISrsCoroutineHandler
+public:
     virtual srs_error_t cycle();
 // server utilities.
 public:
diff --git a/trunk/src/protocol/srs_service_st.cpp b/trunk/src/protocol/srs_service_st.cpp
index 0e2c4f586..99cf856af 100644
--- a/trunk/src/protocol/srs_service_st.cpp
+++ b/trunk/src/protocol/srs_service_st.cpp
@@ -151,6 +151,11 @@ srs_thread_t srs_thread_self()
     return (srs_thread_t)st_thread_self();
 }
 
+void srs_thread_exit(void* retval)
+{
+    st_thread_exit(retval);
+}
+
 srs_error_t srs_tcp_connect(string server, int port, srs_utime_t tm, srs_netfd_t* pstfd)
 {
     st_utime_t timeout = ST_UTIME_NO_TIMEOUT;
diff --git a/trunk/src/protocol/srs_service_st.hpp b/trunk/src/protocol/srs_service_st.hpp
index ed86737d6..263bb5104 100644
--- a/trunk/src/protocol/srs_service_st.hpp
+++ b/trunk/src/protocol/srs_service_st.hpp
@@ -57,6 +57,7 @@ extern srs_error_t srs_fd_keepalive(int fd);
 
 // Get current coroutine/thread.
 extern srs_thread_t srs_thread_self();
+extern void srs_thread_exit(void* retval);
 
 // For client, to open socket and connect to server.
 // @param tm The timeout in srs_utime_t.