for bug#194, open pipe for each connection.

@@ -81,7 +81,7 @@ int SrsPipe::active()
     int ret = ERROR_SUCCESS;
     int ret = ERROR_SUCCESS;
     
     
     int v = 0;
     int v = 0;
-    if (st_write(read_stfd, &v, sizeof(int), ST_UTIME_NO_TIMEOUT) != sizeof(int)) {
+    if (st_write(write_stfd, &v, sizeof(int), ST_UTIME_NO_TIMEOUT) != sizeof(int)) {
         ret = ERROR_SYSTEM_WRITE_PIPE;
         ret = ERROR_SYSTEM_WRITE_PIPE;
         srs_error("write pipe failed. ret=%d", ret);
         srs_error("write pipe failed. ret=%d", ret);
         return ret;
         return ret;

@@ -516,7 +516,12 @@ int SrsRtmpConn::playing(SrsSource* source)
     SrsAutoFree(SrsConsumer, consumer);
     SrsAutoFree(SrsConsumer, consumer);
     srs_verbose("consumer created success.");
     srs_verbose("consumer created success.");
     
     
+    // TODO: FIXME: remove it.
     rtmp->set_recv_timeout(SRS_CONSTS_RTMP_PULSE_TIMEOUT_US);
     rtmp->set_recv_timeout(SRS_CONSTS_RTMP_PULSE_TIMEOUT_US);
+    // disable the timeout.
+    // TODO: FIXME: maybe can use larger timeout?
+    rtmp->set_recv_timeout(ST_UTIME_NO_TIMEOUT);
+    rtmp->set_send_timeout(ST_UTIME_NO_TIMEOUT);
     
     
     SrsPithyPrint pithy_print(SRS_CONSTS_STAGE_PLAY_USER);
     SrsPithyPrint pithy_print(SRS_CONSTS_STAGE_PLAY_USER);
     
     
@@ -525,12 +530,30 @@ int SrsRtmpConn::playing(SrsSource* source)
     bool user_specified_duration_to_stop = (req->duration > 0);
     bool user_specified_duration_to_stop = (req->duration > 0);
     int64_t starttime = -1;
     int64_t starttime = -1;
     
     
+    pollfd pds[2];
+    // poll the client incoming fd.
+    pds[0].fd = st_netfd_fileno(stfd);
+    pds[0].events = POLLIN;
+    // poll the consumer queue pipe.
+    pds[1].fd = st_netfd_fileno(consumer->pipe_fd());
+    pds[1].events = POLLIN;
+    
     while (true) {
     while (true) {
         // collect elapse for pithy print.
         // collect elapse for pithy print.
         pithy_print.elapse();
         pithy_print.elapse();
         
         
+        pds[0].revents = 0;
+        pds[1].revents = 0;
+
+        // wait for packet incoming or data outgoing.
+        if (st_poll(pds, 2, ST_UTIME_NO_TIMEOUT) <= 0) {
+            srs_error("st_poll failed.");
+            break;
+        }
+
+        // packet incoming, read from RTMP.
         // read from client.
         // read from client.
-        if (true) {
+        if (pds[0].revents & POLLIN) {
             SrsMessage* msg = NULL;
             SrsMessage* msg = NULL;
             ret = rtmp->recv_message(&msg);
             ret = rtmp->recv_message(&msg);
             srs_verbose("play loop recv message. ret=%d", ret);
             srs_verbose("play loop recv message. ret=%d", ret);
@@ -553,6 +576,8 @@ int SrsRtmpConn::playing(SrsSource* source)
             }
             }
         }
         }
         
         
+        // data outgoing, sendout packets.
+        if (pds[1].revents & POLLIN) {
             // get messages from consumer.
             // get messages from consumer.
             int count = 0;
             int count = 0;
             if ((ret = consumer->dump_packets(msgs.size, msgs.msgs, count)) != ERROR_SUCCESS) {
             if ((ret = consumer->dump_packets(msgs.size, msgs.msgs, count)) != ERROR_SUCCESS) {
@@ -598,6 +623,7 @@ int SrsRtmpConn::playing(SrsSource* source)
                     return ret;
                     return ret;
                 }
                 }
             }
             }
+        }
         
         
         // if duration specified, and exceed it, stop play live.
         // if duration specified, and exceed it, stop play live.
         // @see: https://github.com/winlinvip/simple-rtmp-server/issues/45
         // @see: https://github.com/winlinvip/simple-rtmp-server/issues/45