relayd: implement file and session rotation on top of trace chunks

[lttng-tools.git] / src / bin / lttng-relayd / index.h

diff --git a/src/bin/lttng-relayd/index.h b/src/bin/lttng-relayd/index.h
index e882ed97d2552b71225fee0517698fcdf0143475..8466e91a468b501cc7bc14ac2a2aaeac0f1e87a2 100644 (file)
--- a/src/bin/lttng-relayd/index.h
+++ b/src/bin/lttng-relayd/index.h
@@ -29,24 +29,27 @@
 #include "stream-fd.h"
 
 struct relay_stream;
+struct relay_connection;
+struct lttcomm_relayd_index;
 
 struct relay_index {
        /*
         * index lock nests inside stream lock.
         */
-       pthread_mutex_t reflock;        /* Protects refcounting. */
        struct urcu_ref ref;            /* Reference from getters. */
        struct relay_stream *stream;    /* Back ref to stream */
 
        pthread_mutex_t lock;
        /*
-        * FD on which to write the index data. May differ from
-        * stream->index_fd due to tracefile rotation.
+        * index file on which to write the index data. May differ from
+        * stream->index_file due to tracefile rotation.
         */
-       struct stream_fd *index_fd;
+       struct lttng_index_file *index_file;
 
        /* Index packet data. This is the data that is written on disk. */
        struct ctf_packet_index index_data;
+       /* Data + padding size of this packet, filled by the data thread. */
+       uint64_t total_size;
 
        bool has_index_data;
        bool flushed;
@@ -64,12 +67,19 @@ struct relay_index {
 struct relay_index *relay_index_get_by_id_or_create(struct relay_stream *stream,
                uint64_t net_seq_num);
 void relay_index_put(struct relay_index *index);
-int relay_index_set_fd(struct relay_index *index, struct stream_fd *index_fd,
-                uint64_t data_offset);
+int relay_index_set_file(struct relay_index *index,
+               struct lttng_index_file *index_file,
+               uint64_t data_offset);
 int relay_index_set_data(struct relay_index *index,
                 const struct ctf_packet_index *data);
 int relay_index_try_flush(struct relay_index *index);
 
 void relay_index_close_all(struct relay_stream *stream);
+void relay_index_close_partial_fd(struct relay_stream *stream);
+uint64_t relay_index_find_last(struct relay_stream *stream);
+int relay_index_switch_all_files(struct relay_stream *stream);
+int relay_index_set_control_data(struct relay_index *index,
+               const struct lttcomm_relayd_index *data,
+               unsigned int minor_version);
 
 #endif /* _RELAY_INDEX_H */