rrdtool plugin: Wait for the ``queue thread'' to exit _after_ signaling it to exit..

diff --git a/src/rrdtool.c b/src/rrdtool.c
index 368858172a92dfee9fb52d56eebb3e86e5c2ab57..d274ba021b65146cd2cf7195421e045c52a1f5d5 100644 (file)
--- a/src/rrdtool.c
+++ b/src/rrdtool.c
@@ -1053,6 +1053,11 @@ static int rrd_shutdown (void)
        rrd_cache_flush (-1);
        pthread_mutex_unlock (&cache_lock);
 
+       pthread_mutex_lock (&queue_lock);
+       do_shutdown = 1;
+       pthread_cond_signal (&queue_cond);
+       pthread_mutex_unlock (&queue_lock);
+
        /* Wait for all the values to be written to disk before returning. */
        if (queue_thread != 0)
        {
@@ -1061,11 +1066,6 @@ static int rrd_shutdown (void)
                DEBUG ("rrdtool plugin: queue_thread exited.");
        }
 
-       pthread_mutex_lock (&queue_lock);
-       do_shutdown = 1;
-       pthread_cond_signal (&queue_cond);
-       pthread_mutex_unlock (&queue_lock);
-
        return (0);
 } /* int rrd_shutdown */