the join maybe failed, should use a variable to ensure thread terminated. 1.0.28.

@@ -388,6 +388,7 @@ Supported operating systems and hardware:
 
 ## History
 
+* v1.0, 2015-02-17, the join maybe failed, should use a variable to ensure thread terminated. 1.0.28.
 * <strong>v1.0, 2015-02-12, [1.0r2 release(1.0.27)](https://github.com/winlinvip/simple-rtmp-server/releases/tag/1.0r2) released. 59507 lines.</strong>
 * v1.0, 2015-02-11, dev code HuKaiqun for 1.0.27.
 * v1.0, 2015-02-10, for [#310](https://github.com/winlinvip/simple-rtmp-server/issues/310), the aac profile must be object plus one. 1.0.26

@@ -120,7 +120,9 @@ void SrsThread::stop()
         st_thread_interrupt(tid);
         
         // wait the thread to exit.
-        st_thread_join(tid, NULL);
+        int ret = st_thread_join(tid, NULL);
+        // TODO: FIXME: the join maybe failed, should use a variable to ensure thread terminated.
+        srs_assert(ret == 0);
         
         tid = NULL;
     }

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       1
 #define VERSION_MINOR       0
-#define VERSION_REVISION    27
+#define VERSION_REVISION    28
 
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"