X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fconsumer-timer.h;h=04743abf83a6d9625774953a08db931911df503e;hb=e1b71bdc87cefd070ae082d88f6d4af5f2bcbd62;hp=84061587f04ddd4a06f6234860bd0147a3b62ac4;hpb=331744e34f56a5aec69b05d356d6901e67926acc;p=lttng-tools.git

diff --git a/src/common/consumer-timer.h b/src/common/consumer-timer.h
index 84061587f..04743abf8 100644
--- a/src/common/consumer-timer.h
+++ b/src/common/consumer-timer.h
@@ -32,12 +32,14 @@
 /*
  * Handle timer teardown race wrt memory free of private data by consumer
  * signals are handled by a single thread, which permits a synchronization
- * point between handling of each signal.
+ * point between handling of each signal. Internal lock ensures mutual
+ * exclusion.
  */
 struct timer_signal_data {
 	pthread_t tid;	/* thread id managing signals */
 	int setup_done;
 	int qs_done;
+	pthread_mutex_t lock;
 };
 
 void consumer_timer_switch_start(struct lttng_consumer_channel *channel,