refine the thread, set to disposed when terminate normally

@@ -66,6 +66,7 @@ namespace internal {
         really_terminated = true;
         really_terminated = true;
         _cid = -1;
         _cid = -1;
         _joinable = joinable;
         _joinable = joinable;
+        disposed = false;
         
         
         // in start(), the thread cycle method maybe stop and remove the thread itself,
         // in start(), the thread cycle method maybe stop and remove the thread itself,
         // and the thread start() is waiting for the _cid, and segment fault then.
         // and the thread start() is waiting for the _cid, and segment fault then.
@@ -115,8 +116,32 @@ namespace internal {
     
     
     void SrsThread::stop()
     void SrsThread::stop()
     {
     {
-        if (tid) {
+        if (!tid) {
+            return;
+        }
+        
+        loop = false;
+        
+        dispose();
+        
+        tid = NULL;
+    }
+    
+    bool SrsThread::can_loop()
+    {
+        return loop;
+    }
+    
+    void SrsThread::stop_loop()
+    {
         loop = false;
         loop = false;
+    }
+    
+    void SrsThread::dispose()
+    {
+        if (disposed) {
+            return;
+        }
         
         
         // the interrupt will cause the socket to read/write error,
         // the interrupt will cause the socket to read/write error,
         // which will terminate the cycle thread.
         // which will terminate the cycle thread.
@@ -145,18 +170,7 @@ namespace internal {
             srs_warn("core: wait thread to actually terminated");
             srs_warn("core: wait thread to actually terminated");
         }
         }
         
         
-            tid = NULL;
-        }
-    }
-    
-    bool SrsThread::can_loop()
-    {
-        return loop;
-    }
-    
-    void SrsThread::stop_loop()
-    {
-        loop = false;
+        disposed = true;
     }
     }
     
     
     void SrsThread::thread_cycle()
     void SrsThread::thread_cycle()
@@ -218,8 +232,8 @@ namespace internal {
         handler->on_thread_stop();
         handler->on_thread_stop();
         srs_info("thread %s cycle finished", _name);
         srs_info("thread %s cycle finished", _name);
         
         
-        // when thread terminated normally, set the tid to NULL.
-        tid = NULL;
+        // when thread terminated normally, also disposed.
+        disposed = true;
     }
     }
     
     
     void* SrsThread::thread_fun(void* arg)
     void* SrsThread::thread_fun(void* arg)

@@ -100,6 +100,7 @@ namespace internal {
         bool really_terminated;
         bool really_terminated;
         bool _joinable;
         bool _joinable;
         const char* _name;
         const char* _name;
+        bool disposed;
     private:
     private:
         ISrsThreadHandler* handler;
         ISrsThreadHandler* handler;
         int64_t cycle_interval_us;
         int64_t cycle_interval_us;
@@ -154,6 +155,7 @@ namespace internal {
          */
          */
         virtual void stop_loop();
         virtual void stop_loop();
     private:
     private:
+        virtual void dispose();
         virtual void thread_cycle();
         virtual void thread_cycle();
         static void* thread_fun(void* arg);
         static void* thread_fun(void* arg);
     };
     };

@@ -905,7 +905,7 @@ namespace _srs_internal
         }
         }
         
         
         // client c1 time and version
         // client c1 time and version
-        time = ::time(NULL);
+        time = (int32_t)::time(NULL);
         version = 0x80000702; // client c1 version
         version = 0x80000702; // client c1 version
 
 
         // generate signature by schema
         // generate signature by schema