Add a consumer daemon INIT command

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

diff --git a/src/common/consumer/consumer.h b/src/common/consumer/consumer.h
index b940036f6f074ed60cbfeac3daa6f29c1a85095e..83196444b9519ab2ad3d699a6e0edf64898781c5 100644 (file)
--- a/src/common/consumer/consumer.h
+++ b/src/common/consumer/consumer.h
@@ -34,6 +34,7 @@
 #include <common/sessiond-comm/sessiond-comm.h>
 #include <common/pipe.h>
 #include <common/index/ctf-index.h>
+#include <common/trace-chunk-registry.h>
 
 /* Commands for consumer */
 enum lttng_consumer_command {
@@ -68,6 +69,7 @@ enum lttng_consumer_command {
        LTTNG_CONSUMER_CHECK_ROTATION_PENDING_LOCAL,
        LTTNG_CONSUMER_CHECK_ROTATION_PENDING_RELAY,
        LTTNG_CONSUMER_MKDIR,
+       LTTNG_CONSUMER_INIT,
 };
 
 /* State of each fd in consumer */
@@ -112,6 +114,8 @@ struct consumer_metadata_cache;
 struct lttng_consumer_channel {
        /* HT node used for consumer_data.channel_ht */
        struct lttng_ht_node_u64 node;
+       /* HT node used for consumer_data.channels_by_session_id_ht */
+       struct lttng_ht_node_u64 channels_by_session_id_ht_node;
        /* Indexed key. Incremented value in the consumer. */
        uint64_t key;
        /* Number of streams referencing this channel */
@@ -597,6 +601,7 @@ struct lttng_consumer_local_data {
         * to the session daemon (write-only).
         */
        int channel_monitor_pipe;
+       LTTNG_OPTIONAL(lttng_uuid) sessiond_uuid;
 };
 
 /*
@@ -621,6 +626,8 @@ struct lttng_consumer_global_data {
 
        /* Channel hash table protected by consumer_data.lock. */
        struct lttng_ht *channel_ht;
+       /* Channel hash table indexed by session id. */
+       struct lttng_ht *channels_by_session_id_ht;
        /*
         * Flag specifying if the local array of FDs needs update in the
         * poll function. Protected by consumer_data.lock.
@@ -647,6 +654,11 @@ struct lttng_consumer_global_data {
         * This HT uses the "node_channel_id" of the consumer stream.
         */
        struct lttng_ht *stream_per_chan_id_ht;
+
+       /*
+        * Trace chunk registry indexed by (session_id, chunk_id).
+        */
+       struct lttng_trace_chunk_registry *chunk_registry;
 };
 
 /*
@@ -853,5 +865,8 @@ void lttng_consumer_reset_stream_rotate_state(struct lttng_consumer_stream *stre
 int lttng_consumer_mkdir(const char *path, uid_t uid, gid_t gid,
                uint64_t relayd_id);
 void lttng_consumer_cleanup_relayd(struct consumer_relayd_sock_pair *relayd);
+enum lttcomm_return_code lttng_consumer_init_command(
+               struct lttng_consumer_local_data *ctx,
+               const lttng_uuid sessiond_uuid);
 
 #endif /* LIB_CONSUMER_H */