Server: Add callback for logrotate

trunk/src/app/srs_app_server.cpp

@@ -1104,6 +1104,11 @@ void SrsServer::on_signal(int signo)
 #ifndef SRS_GPERF_MC
     if (signo == SRS_SIGNAL_REOPEN_LOG) {
         _srs_log->reopen();
+
+        if (handler) {
+            handler->on_logrotate();
+        }
+
         srs_warn("reopen log file, signo=%d", signo);
         return;
     }

trunk/src/app/srs_app_server.hpp

@@ -236,6 +236,8 @@ public:
     virtual srs_error_t on_cycle() = 0;
     // Callback the handler when got client.
     virtual srs_error_t on_accept_client(int max, int cur) = 0;
+    // Callback for logrotate.
+    virtual void on_logrotate() = 0;
 };
 
 // SRS RTMP server, initialize and listen, start connection service thread, destroy client.