X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fcommon%2Fconsumer.c;h=6cf85d96a75b0afa69994886d9a94d91a7faaa29;hb=7f12ef5d1b1de751b90c2e88fa331692a998ed70;hp=6e99a7f52d0d24ac1473db3f1c2bf12880a8df78;hpb=75d83e506938a3e673ad19bb11838ee88e977e72;p=lttng-tools.git

diff --git a/src/common/consumer.c b/src/common/consumer.c
index 6e99a7f52..6cf85d96a 100644
--- a/src/common/consumer.c
+++ b/src/common/consumer.c
@@ -551,6 +551,7 @@ static int add_stream(struct lttng_consumer_stream *stream,
 
 	pthread_mutex_lock(&consumer_data.lock);
 	pthread_mutex_lock(&stream->chan->lock);
+	pthread_mutex_lock(&stream->chan->timer_lock);
 	pthread_mutex_lock(&stream->lock);
 	rcu_read_lock();
 
@@ -588,6 +589,7 @@ static int add_stream(struct lttng_consumer_stream *stream,
 
 	rcu_read_unlock();
 	pthread_mutex_unlock(&stream->lock);
+	pthread_mutex_unlock(&stream->chan->timer_lock);
 	pthread_mutex_unlock(&stream->chan->lock);
 	pthread_mutex_unlock(&consumer_data.lock);
 
@@ -838,6 +840,7 @@ struct lttng_consumer_channel *consumer_allocate_channel(uint64_t key,
 	channel->tracefile_count = tracefile_count;
 	channel->monitor = monitor;
 	pthread_mutex_init(&channel->lock, NULL);
+	pthread_mutex_init(&channel->timer_lock, NULL);
 
 	/*
 	 * In monitor mode, the streams associated with the channel will be put in
@@ -884,6 +887,7 @@ int consumer_add_channel(struct lttng_consumer_channel *channel,
 
 	pthread_mutex_lock(&consumer_data.lock);
 	pthread_mutex_lock(&channel->lock);
+	pthread_mutex_lock(&channel->timer_lock);
 	rcu_read_lock();
 
 	lttng_ht_lookup(consumer_data.channel_ht, &channel->key, &iter);
@@ -900,6 +904,7 @@ int consumer_add_channel(struct lttng_consumer_channel *channel,
 
 end:
 	rcu_read_unlock();
+	pthread_mutex_unlock(&channel->timer_lock);
 	pthread_mutex_unlock(&channel->lock);
 	pthread_mutex_unlock(&consumer_data.lock);
 
@@ -1956,8 +1961,8 @@ void consumer_del_metadata_stream(struct lttng_consumer_stream *stream,
 end:
 	/*
 	 * Nullify the stream reference so it is not used after deletion. The
-	 * consumer data lock MUST be acquired before being able to check for a
-	 * NULL pointer value.
+	 * channel lock MUST be acquired before being able to check for
+	 * a NULL pointer value.
 	 */
 	stream->chan->metadata_stream = NULL;
 
@@ -1991,6 +1996,7 @@ static int add_metadata_stream(struct lttng_consumer_stream *stream,
 
 	pthread_mutex_lock(&consumer_data.lock);
 	pthread_mutex_lock(&stream->chan->lock);
+	pthread_mutex_lock(&stream->chan->timer_lock);
 	pthread_mutex_lock(&stream->lock);
 
 	/*
@@ -2037,6 +2043,7 @@ static int add_metadata_stream(struct lttng_consumer_stream *stream,
 
 	pthread_mutex_unlock(&stream->lock);
 	pthread_mutex_unlock(&stream->chan->lock);
+	pthread_mutex_unlock(&stream->chan->timer_lock);
 	pthread_mutex_unlock(&consumer_data.lock);
 	return ret;
 }