Fix: app cmd leak on sessiond exit
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 24 Aug 2015 18:41:42 +0000 (14:41 -0400)
committerJérémie Galarneau <jeremie.galarneau@efficios.com>
Fri, 4 Sep 2015 22:43:42 +0000 (18:43 -0400)
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
src/bin/lttng-sessiond/main.c

index 5a7d153e568743c73365549bd9676311789b9c48..6310db7e601654f5d5f3bc0c1bae41cf866c532a 100644 (file)
@@ -2031,6 +2031,22 @@ error:
                free(wait_node);
        }
 
+       /* Empty command queue. */
+       for (;;) {
+               /* Dequeue command for registration */
+               node = cds_wfcq_dequeue_blocking(&ust_cmd_queue.head, &ust_cmd_queue.tail);
+               if (node == NULL) {
+                       break;
+               }
+               ust_cmd = caa_container_of(node, struct ust_command, node);
+               ret = close(ust_cmd->sock);
+               if (ret < 0) {
+                       PERROR("close ust sock exit dispatch %d", ust_cmd->sock);
+               }
+               lttng_fd_put(LTTNG_FD_APPS, 1);
+               free(ust_cmd);
+       }
+
 error_testpoint:
        DBG("Dispatch thread dying");
        if (err) {
@@ -5973,6 +5989,10 @@ exit_apps:
        }
 exit_reg_apps:
 
+       /*
+        * Join dispatch thread after joining reg_apps_thread to ensure
+        * we don't leak applications in the queue.
+        */
        ret = pthread_join(dispatch_thread, &status);
        if (ret) {
                errno = ret;
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