Implement snapshot commands in lttng-sessiond

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

diff --git a/src/common/consumer.h b/src/common/consumer.h
index 3726fd1e6a2b19b3ca35623243524fd8e608fda9..d0986ef1e3203a420f2054b75da65ab94cdfcd77 100644 (file)
--- a/src/common/consumer.h
+++ b/src/common/consumer.h
@@ -54,6 +54,8 @@ enum lttng_consumer_command {
        LTTNG_CONSUMER_CLOSE_METADATA,
        LTTNG_CONSUMER_SETUP_METADATA,
        LTTNG_CONSUMER_FLUSH_CHANNEL,
+       LTTNG_CONSUMER_SNAPSHOT_CHANNEL,
+       LTTNG_CONSUMER_SNAPSHOT_METADATA,
 };
 
 /* State of each fd in consumer */
@@ -85,6 +87,8 @@ enum consumer_channel_type {
        CONSUMER_CHANNEL_TYPE_DATA      = 1,
 };
 
+extern struct lttng_consumer_global_data consumer_data;
+
 struct stream_list {
        struct cds_list_head head;
        unsigned int count;
@@ -222,6 +226,7 @@ struct lttng_consumer_stream {
         * Lock to use the stream FDs since they are used between threads.
         *
         * This is nested INSIDE the consumer_data lock.
+        * This is nested INSIDE the metadata cache lock.
         * This is nested OUTSIDE consumer_relayd_sock_pair lock.
         */
        pthread_mutex_t lock;
@@ -457,7 +462,7 @@ struct lttng_consumer_stream *consumer_allocate_stream(uint64_t channel_key,
                const char *channel_name,
                uid_t uid,
                gid_t gid,
-               int relayd_id,
+               uint64_t relayd_id,
                uint64_t session_id,
                int cpu,
                int *alloc_ret,
@@ -468,7 +473,7 @@ struct lttng_consumer_channel *consumer_allocate_channel(uint64_t key,
                const char *name,
                uid_t uid,
                gid_t gid,
-               int relayd_id,
+               uint64_t relayd_id,
                enum lttng_event_output output,
                uint64_t tracefile_size,
                uint64_t tracefile_count);
@@ -530,5 +535,6 @@ int consumer_send_status_channel(int sock,
                struct lttng_consumer_channel *channel);
 void notify_thread_del_channel(struct lttng_consumer_local_data *ctx,
                uint64_t key);
+void consumer_destroy_relayd(struct consumer_relayd_sock_pair *relayd);
 
 #endif /* LIB_CONSUMER_H */