X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fconsumer%2Fconsumer.h;h=a7d0ee1a706cc719f6877b168a6819f97f72b0ac;hb=5b8eb761b650749a164de120f014b0cb6c218cf2;hp=f5fbf326219efada17fe347b9fa3ffa6cfd46fe6;hpb=a1ae2ea59428174575b7328b1062a6248d636b72;p=lttng-tools.git

diff --git a/src/common/consumer/consumer.h b/src/common/consumer/consumer.h
index f5fbf3262..a7d0ee1a7 100644
--- a/src/common/consumer/consumer.h
+++ b/src/common/consumer/consumer.h
@@ -62,6 +62,7 @@ enum lttng_consumer_command {
 	LTTNG_CONSUMER_LOST_PACKETS,
 	LTTNG_CONSUMER_CLEAR_QUIESCENT_CHANNEL,
 	LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE,
+	LTTNG_CONSUMER_ROTATE_RENAME,
 	LTTNG_CONSUMER_MKDIR,
 };
 
@@ -414,6 +415,17 @@ struct lttng_consumer_stream {
 	pthread_cond_t metadata_rdv;
 	pthread_mutex_t metadata_rdv_lock;
 
+	/*
+	 * Read-only copies of channel values. We cannot safely access the
+	 * channel from a stream, so we need to have a local copy of these
+	 * fields in the stream object. These fields should be removed from
+	 * the stream objects when we introduce refcounting.
+	 */
+	struct {
+		char path[LTTNG_PATH_MAX];
+		uint64_t tracefile_size;
+	} channel_read_only_attributes;
+
 	/* Indicate if the stream still has some data to be read. */
 	unsigned int has_data:1;
 	/*
@@ -661,6 +673,14 @@ void lttng_consumer_cleanup(void);
  */
 int lttng_consumer_poll_socket(struct pollfd *kconsumer_sockpoll);
 
+/*
+ * Copy the fields from the channel that need to be accessed (read-only)
+ * directly from the stream.
+ */
+void consumer_stream_update_channel_attributes(
+		struct lttng_consumer_stream *stream,
+		struct lttng_consumer_channel *channel);
+
 struct lttng_consumer_stream *consumer_allocate_stream(uint64_t channel_key,
 		uint64_t stream_key,
 		enum lttng_consumer_stream_state state,
@@ -760,6 +780,8 @@ void consumer_del_stream_for_data(struct lttng_consumer_stream *stream);
 void consumer_add_metadata_stream(struct lttng_consumer_stream *stream);
 void consumer_del_stream_for_metadata(struct lttng_consumer_stream *stream);
 int consumer_create_index_file(struct lttng_consumer_stream *stream);
+int lttng_consumer_rotate_rename(const char *current_path, const char *new_path,
+		uid_t uid, gid_t gid, uint64_t relayd_id);
 int lttng_consumer_mkdir(const char *path, uid_t uid, gid_t gid,
 		uint64_t relayd_id);