Fix: free metadata cache after grace period in consumer

[lttng-tools.git] / src / common / consumer.c

diff --git a/src/common/consumer.c b/src/common/consumer.c
index 0af994fc421c5b00c4ca11615cee2c9220aa5466..f2ccf9536b147b72574638046135da3e425b771a 100644 (file)
--- a/src/common/consumer.c
+++ b/src/common/consumer.c
@@ -286,6 +286,17 @@ static void free_channel_rcu(struct rcu_head *head)
        struct lttng_consumer_channel *channel =
                caa_container_of(node, struct lttng_consumer_channel, node);
 
+       switch (consumer_data.type) {
+       case LTTNG_CONSUMER_KERNEL:
+               break;
+       case LTTNG_CONSUMER32_UST:
+       case LTTNG_CONSUMER64_UST:
+               lttng_ustconsumer_free_channel(channel);
+               break;
+       default:
+               ERR("Unknown consumer_data type");
+               abort();
+       }
        free(channel);
 }
 
@@ -563,6 +574,7 @@ struct lttng_consumer_stream *consumer_allocate_stream(uint64_t channel_key,
        stream->endpoint_status = CONSUMER_ENDPOINT_ACTIVE;
        stream->index_fd = -1;
        pthread_mutex_init(&stream->lock, NULL);
+       pthread_mutex_init(&stream->metadata_timer_lock, NULL);
 
        /* If channel is the metadata, flag this stream as metadata. */
        if (type == CONSUMER_CHANNEL_TYPE_METADATA) {
@@ -936,7 +948,9 @@ struct lttng_consumer_channel *consumer_allocate_channel(uint64_t key,
                uint64_t tracefile_count,
                uint64_t session_id_per_pid,
                unsigned int monitor,
-               unsigned int live_timer_interval)
+               unsigned int live_timer_interval,
+               const char *root_shm_path,
+               const char *shm_path)
 {
        struct lttng_consumer_channel *channel;
 
@@ -993,6 +1007,15 @@ struct lttng_consumer_channel *consumer_allocate_channel(uint64_t key,
        strncpy(channel->name, name, sizeof(channel->name));
        channel->name[sizeof(channel->name) - 1] = '\0';
 
+       if (root_shm_path) {
+               strncpy(channel->root_shm_path, root_shm_path, sizeof(channel->root_shm_path));
+               channel->root_shm_path[sizeof(channel->root_shm_path) - 1] = '\0';
+       }
+       if (shm_path) {
+               strncpy(channel->shm_path, shm_path, sizeof(channel->shm_path));
+               channel->shm_path[sizeof(channel->shm_path) - 1] = '\0';
+       }
+
        lttng_ht_node_init_u64(&channel->node, channel->key);
 
        channel->wait_fd = -1;