X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fconsumer.c;h=5cbd42f6301d327abefdb159541dc7f651983e9d;hb=f0dd0509af67a10c9feb73759cc1c8f278b8aa75;hp=25194460645d377ad5d0680417629f1f69d2f40b;hpb=3e4dc1178469513c2ee8de6b8e6c847277dd36dd;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/consumer.c b/src/bin/lttng-sessiond/consumer.c
index 251944606..5cbd42f63 100644
--- a/src/bin/lttng-sessiond/consumer.c
+++ b/src/bin/lttng-sessiond/consumer.c
@@ -731,6 +731,8 @@ error:
 
 /*
  * Send file descriptor to consumer via sock.
+ *
+ * The consumer socket lock must be held by the caller.
  */
 int consumer_send_fds(struct consumer_socket *sock, int *fds, size_t nb_fd)
 {
@@ -755,6 +757,8 @@ error:
 
 /*
  * Consumer send communication message structure to consumer.
+ *
+ * The consumer socket lock must be held by the caller.
  */
 int consumer_send_msg(struct consumer_socket *sock,
 		struct lttcomm_consumer_msg *msg)
@@ -778,6 +782,8 @@ error:
 
 /*
  * Consumer send channel communication message structure to consumer.
+ *
+ * The consumer socket lock must be held by the caller.
  */
 int consumer_send_channel(struct consumer_socket *sock,
 		struct lttcomm_consumer_msg *msg)
@@ -1442,7 +1448,9 @@ int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key,
 	}
 
 	health_code_update();
+	pthread_mutex_lock(socket->lock);
 	ret = consumer_send_msg(socket, &msg);
+	pthread_mutex_unlock(socket->lock);
 	if (ret < 0) {
 		goto error;
 	}