X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Flttng-relayd.h;h=0af8e0f1d963199b5a6bb82c28b244a33daa6b6c;hp=8039a7ec703d01f4672d32abcc9448ed49fb017a;hb=cef0f7d51b8025d3ba04e6496242c1cca1641aa6;hpb=cc7f9e363bf9230260b2ef27c84e24f75a7535c0

diff --git a/src/bin/lttng-relayd/lttng-relayd.h b/src/bin/lttng-relayd/lttng-relayd.h
index 8039a7ec7..0af8e0f1d 100644
--- a/src/bin/lttng-relayd/lttng-relayd.h
+++ b/src/bin/lttng-relayd/lttng-relayd.h
@@ -166,6 +166,11 @@ struct relay_viewer_stream {
 	struct lttng_ht_node_u64 stream_n;
 	struct rcu_head rcu_node;
 	struct ctf_trace *ctf_trace;
+	/*
+	 * This lock blocks only when the writer is about to start overwriting
+	 * a file currently read by the reader.
+	 */
+	pthread_mutex_t overwrite_lock;
 	/* Information telling us if the stream is a metadata stream. */
 	unsigned int metadata_flag:1;
 	/*