UST periodical metadata flush

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

diff --git a/src/common/consumer.h b/src/common/consumer.h
index 82b9bc65f37f99a45f2db11b625f98597e7a5c6b..46387522ec50c8a9509077f88a06213ef8c7c22e 100644 (file)
--- a/src/common/consumer.h
+++ b/src/common/consumer.h
@@ -89,6 +89,9 @@ struct stream_list {
        unsigned int count;
 };
 
+/* Stub. */
+struct consumer_metadata_cache;
+
 struct lttng_consumer_channel {
        /* HT node used for consumer_data.channel_ht */
        struct lttng_ht_node_u64 node;
@@ -132,16 +135,17 @@ struct lttng_consumer_channel {
         * regular channel, this is always set to NULL.
         */
        struct lttng_consumer_stream *metadata_stream;
-       /*
-        * Metadata written so far. Helps keeping track of
-        * contiguousness and order.
-        */
-       uint64_t contig_metadata_written;
 
        /* for UST */
        int wait_fd;
        /* Node within channel thread ht */
        struct lttng_ht_node_u64 wait_fd_node;
+
+       /* Metadata cache is metadata channel */
+       struct consumer_metadata_cache *metadata_cache;
+       /* For metadata periodical flush */
+       int switch_timer_enabled;
+       timer_t switch_timer;
 };
 
 /*
@@ -322,8 +326,11 @@ struct lttng_consumer_local_data {
         *    < 0 (error)
         */
        int (*on_update_stream)(int sessiond_key, uint32_t state);
+       enum lttng_consumer_type type;
        /* socket to communicate errors with sessiond */
        int consumer_error_socket;
+       /* socket to ask metadata to sessiond */
+       int consumer_metadata_socket;
        /* socket to exchange commands with sessiond */
        char *consumer_command_sock_path;
        /* communication with splice */