#ifndef _RELAYD_COMM
#define _RELAYD_COMM
-#define _GNU_SOURCE
-
#include <limits.h>
#include <stdint.h>
#include <lttng/lttng.h>
#include <common/defaults.h>
+#include <common/index/ctf-index.h>
+#include <common/macros.h>
+#include <common/compat/uuid.h>
+#include <common/optional.h>
+
+#define RELAYD_VERSION_COMM_MAJOR VERSION_MAJOR
+#define RELAYD_VERSION_COMM_MINOR VERSION_MINOR
-#define RELAYD_VERSION_COMM_MAJOR 2
-#define RELAYD_VERSION_COMM_MINOR 1
+#define RELAYD_COMM_LTTNG_HOST_NAME_MAX_2_4 64
+#define RELAYD_COMM_LTTNG_NAME_MAX_2_4 255
+#define RELAYD_COMM_LTTNG_PATH_MAX 4096
+#define RELAYD_COMM_DEFAULT_STREAM_NAME_LEN 264 /* 256 + 8 */
/*
* lttng-relayd communication header.
* Used to add a stream on the relay daemon.
*/
struct lttcomm_relayd_add_stream {
- char channel_name[DEFAULT_STREAM_NAME_LEN];
- char pathname[PATH_MAX];
+ char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN];
+ char pathname[RELAYD_COMM_LTTNG_PATH_MAX];
+} LTTNG_PACKED;
+
+/*
+ * Used to add a stream on the relay daemon.
+ * Protocol version 2.2
+ */
+struct lttcomm_relayd_add_stream_2_2 {
+ char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN];
+ char pathname[RELAYD_COMM_LTTNG_PATH_MAX];
+ uint64_t tracefile_size;
+ uint64_t tracefile_count;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_add_stream_2_11 {
+ uint32_t channel_name_len;
+ uint32_t pathname_len;
+ uint64_t tracefile_size;
+ uint64_t tracefile_count;
+ uint64_t trace_chunk_id;
+ char names[];
} LTTNG_PACKED;
/*
uint32_t ret_code;
} LTTNG_PACKED;
-/*
- * Used to update synchronization information.
- */
-struct lttcomm_relayd_update_sync_info {
- /* TODO: fill the structure. Feature not implemented yet */
-} LTTNG_PACKED;
-
/*
* Version command.
*/
uint64_t stream_id;
} LTTNG_PACKED;
+/*
+ * Index data.
+ */
+struct lttcomm_relayd_index {
+ uint64_t relay_stream_id;
+ uint64_t net_seq_num;
+ uint64_t packet_size;
+ uint64_t content_size;
+ uint64_t timestamp_begin;
+ uint64_t timestamp_end;
+ uint64_t events_discarded;
+ uint64_t stream_id;
+ /* 2.8+ */
+ uint64_t stream_instance_id;
+ uint64_t packet_seq_num;
+} LTTNG_PACKED;
+
+static inline size_t lttcomm_relayd_index_len(uint32_t major, uint32_t minor)
+{
+ if (major == 1) {
+ switch (minor) {
+ case 0:
+ return offsetof(struct lttcomm_relayd_index, stream_id)
+ + member_sizeof(struct lttcomm_relayd_index,
+ stream_id);
+ case 1:
+ return offsetof(struct lttcomm_relayd_index, packet_seq_num)
+ + member_sizeof(struct lttcomm_relayd_index,
+ packet_seq_num);
+ default:
+ abort();
+ }
+ }
+ abort();
+}
+
+/*
+ * Create session in 2.4 adds additionnal parameters for live reading.
+ */
+struct lttcomm_relayd_create_session_2_4 {
+ char session_name[RELAYD_COMM_LTTNG_NAME_MAX_2_4];
+ char hostname[RELAYD_COMM_LTTNG_HOST_NAME_MAX_2_4];
+ uint32_t live_timer;
+ uint32_t snapshot;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_create_session_2_11 {
+ uint32_t session_name_len;
+ uint32_t hostname_len;
+ uint32_t live_timer;
+ uint8_t snapshot;
+ /* Sessiond instance UUID */
+ lttng_uuid sessiond_uuid;
+ /* Sessiond session id */
+ uint64_t session_id;
+ /* Session creation time, in seconds since UNIX Epoch. */
+ uint64_t creation_time;
+ LTTNG_OPTIONAL_COMM(uint64_t) LTTNG_PACKED current_chunk_id;
+ /* Contains the session_name and hostname */
+ char names[];
+} LTTNG_PACKED;
+
+/*
+ * Used to ask the relay to reset the metadata trace file (regeneration).
+ * Send the new version of the metadata (starts at 0).
+ */
+struct lttcomm_relayd_reset_metadata {
+ uint64_t stream_id;
+ uint64_t version;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_stream_rotation_position {
+ uint64_t stream_id;
+ /*
+ * Sequence number of the first packet belonging to the new
+ * "destination" trace chunk to which the stream is rotating.
+ *
+ * Ignored for metadata streams.
+ */
+ uint64_t rotate_at_seq_num;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_rotate_streams {
+ uint32_t stream_count;
+ /*
+ * Streams can be rotated outside of a chunk but not be parented to
+ * a new chunk.
+ */
+ LTTNG_OPTIONAL_COMM(uint64_t) new_chunk_id;
+ /* `stream_count` positions follow. */
+ struct lttcomm_relayd_stream_rotation_position rotation_positions[];
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_create_trace_chunk {
+ uint64_t chunk_id;
+ /* Seconds since EPOCH. */
+ uint64_t creation_timestamp;
+ /* Includes trailing NULL. */
+ uint32_t override_name_length;
+ char override_name[];
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_close_trace_chunk {
+ uint64_t chunk_id;
+ /* Seconds since EPOCH. */
+ uint64_t close_timestamp;
+ /* enum lttng_trace_chunk_command_type */
+ LTTNG_OPTIONAL_COMM(uint32_t) LTTNG_PACKED close_command;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_trace_chunk_exists {
+ uint64_t chunk_id;
+} LTTNG_PACKED;
+
+struct lttcomm_relayd_trace_chunk_exists_reply {
+ struct lttcomm_relayd_generic_reply generic;
+ uint8_t trace_chunk_exists;
+} LTTNG_PACKED;
+
#endif /* _RELAYD_COMM */