X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fsessiond-comm%2Frelayd.h;h=25d09980e751a22f0933103d6420834981092eab;hp=358123273fb20a757f3da8dbca6ba999921eb532;hb=f86f6389a47137d2f5e8fc707916b6650fd1de00;hpb=234cd6367843a2106a4cb10f8fb99443208516df diff --git a/src/common/sessiond-comm/relayd.h b/src/common/sessiond-comm/relayd.h index 358123273..25d09980e 100644 --- a/src/common/sessiond-comm/relayd.h +++ b/src/common/sessiond-comm/relayd.h @@ -29,6 +29,11 @@ #define RELAYD_VERSION_COMM_MAJOR VERSION_MAJOR #define RELAYD_VERSION_COMM_MINOR VERSION_MINOR +#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. */ @@ -64,8 +69,8 @@ struct lttcomm_relayd_status_session { * Used to add a stream on the relay daemon. */ struct lttcomm_relayd_add_stream { - char channel_name[DEFAULT_STREAM_NAME_LEN]; - char pathname[LTTNG_PATH_MAX]; + char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN]; + char pathname[RELAYD_COMM_LTTNG_PATH_MAX]; } LTTNG_PACKED; /* @@ -73,8 +78,8 @@ struct lttcomm_relayd_add_stream { * Protocol version 2.2 */ struct lttcomm_relayd_add_stream_2_2 { - char channel_name[DEFAULT_STREAM_NAME_LEN]; - char pathname[LTTNG_PATH_MAX]; + 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; @@ -94,13 +99,6 @@ struct lttcomm_relayd_generic_reply { 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. */ @@ -159,18 +157,90 @@ struct lttcomm_relayd_index { 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[LTTNG_NAME_MAX]; - char hostname[LTTNG_HOST_NAME_MAX]; + 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; + /* 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_rotate_stream { + uint64_t stream_id; + /* Ignored for metadata streams. */ + uint64_t rotate_at_seq_num; + uint64_t new_chunk_id; + /* Includes trailing NULL. */ + uint32_t pathname_length; + /* Must be the last member of this structure. */ + char new_pathname[]; +} LTTNG_PACKED; + +struct lttcomm_relayd_rotate_rename { + uint32_t old_path_length; + uint32_t new_path_length; + /* Concatenation of the old and new paths, separated by \0. */ + char paths[]; +} LTTNG_PACKED; + +struct lttcomm_relayd_rotate_pending { + uint64_t chunk_id; +} LTTNG_PACKED; + +struct lttcomm_relayd_rotate_pending_reply { + struct lttcomm_relayd_generic_reply generic; + /* Valid values are [0, 1]. */ + uint8_t is_pending; +} LTTNG_PACKED; + +struct lttcomm_relayd_mkdir { + /* Includes trailing NULL */ + uint32_t length; + char path[]; +} LTTNG_PACKED; + #endif /* _RELAYD_COMM */