2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 * Julien Desfossez <julien.desfossez@polymtl.ca>
4 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 * This header is meant for liblttng and libust internal use ONLY. These
22 * declarations should NOT be considered stable API.
25 #ifndef _LTTNG_SESSIOND_COMM_H
26 #define _LTTNG_SESSIOND_COMM_H
29 #include <lttng/lttng.h>
30 #include <lttng/snapshot-internal.h>
31 #include <lttng/save-internal.h>
32 #include <lttng/channel-internal.h>
33 #include <lttng/trigger/trigger-internal.h>
34 #include <lttng/rotate-internal.h>
35 #include <common/compat/socket.h>
36 #include <common/uri.h>
37 #include <common/defaults.h>
38 #include <common/compat/uuid.h>
39 #include <common/macros.h>
41 #include <arpa/inet.h>
42 #include <netinet/in.h>
47 #include <common/unix.h>
49 /* Queue size of listen(2) */
50 #define LTTNG_SESSIOND_COMM_MAX_LISTEN 64
52 /* Maximum number of FDs that can be sent over a Unix socket */
53 #define LTTCOMM_MAX_SEND_FDS 4
56 * Get the error code index from 0 since LTTCOMM_OK start at 1000
58 #define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_CONSUMERD_COMMAND_SOCK_READY)
60 enum lttcomm_sessiond_command
{
62 LTTNG_ADD_CONTEXT
= 0,
63 /* LTTNG_CALIBRATE used to be here */
64 LTTNG_DISABLE_CHANNEL
= 2,
65 LTTNG_DISABLE_EVENT
= 3,
66 LTTNG_LIST_SYSCALLS
= 4,
67 LTTNG_ENABLE_CHANNEL
= 5,
68 LTTNG_ENABLE_EVENT
= 6,
70 /* Session daemon command */
72 LTTNG_DESTROY_SESSION
= 9,
73 LTTNG_LIST_CHANNELS
= 10,
74 LTTNG_LIST_DOMAINS
= 11,
75 LTTNG_LIST_EVENTS
= 12,
76 LTTNG_LIST_SESSIONS
= 13,
77 LTTNG_LIST_TRACEPOINTS
= 14,
78 LTTNG_REGISTER_CONSUMER
= 15,
79 LTTNG_START_TRACE
= 16,
80 LTTNG_STOP_TRACE
= 17,
81 LTTNG_LIST_TRACEPOINT_FIELDS
= 18,
84 LTTNG_DISABLE_CONSUMER
= 19,
85 LTTNG_ENABLE_CONSUMER
= 20,
86 LTTNG_SET_CONSUMER_URI
= 21,
89 LTTNG_DATA_PENDING
= 24,
90 LTTNG_SNAPSHOT_ADD_OUTPUT
= 25,
91 LTTNG_SNAPSHOT_DEL_OUTPUT
= 26,
92 LTTNG_SNAPSHOT_LIST_OUTPUT
= 27,
93 LTTNG_SNAPSHOT_RECORD
= 28,
96 LTTNG_SAVE_SESSION
= 31,
98 LTTNG_UNTRACK_PID
= 33,
99 LTTNG_LIST_TRACKER_PIDS
= 34,
100 LTTNG_SET_SESSION_SHM_PATH
= 40,
101 LTTNG_REGENERATE_METADATA
= 41,
102 LTTNG_REGENERATE_STATEDUMP
= 42,
103 LTTNG_REGISTER_TRIGGER
= 43,
104 LTTNG_UNREGISTER_TRIGGER
= 44,
105 LTTNG_ROTATE_SESSION
= 45,
106 LTTNG_ROTATION_GET_INFO
= 46,
107 LTTNG_ROTATION_SET_SCHEDULE
= 47,
108 LTTNG_SESSION_LIST_ROTATION_SCHEDULES
= 48,
109 LTTNG_CREATE_SESSION_EXT
= 49
112 enum lttcomm_relayd_command
{
113 RELAYD_ADD_STREAM
= 1,
114 RELAYD_CREATE_SESSION
= 2,
115 RELAYD_START_DATA
= 3,
116 RELAYD_UPDATE_SYNC_INFO
= 4,
118 RELAYD_SEND_METADATA
= 6,
119 RELAYD_CLOSE_STREAM
= 7,
120 RELAYD_DATA_PENDING
= 8,
121 RELAYD_QUIESCENT_CONTROL
= 9,
122 RELAYD_BEGIN_DATA_PENDING
= 10,
123 RELAYD_END_DATA_PENDING
= 11,
124 RELAYD_ADD_INDEX
= 12,
125 RELAYD_SEND_INDEX
= 13,
126 RELAYD_CLOSE_INDEX
= 14,
127 /* Live-reading commands (2.4+). */
128 RELAYD_LIST_SESSIONS
= 15,
129 /* All streams of the channel have been sent to the relayd (2.4+). */
130 RELAYD_STREAMS_SENT
= 16,
131 /* Ask the relay to reset the metadata trace file (2.8+) */
132 RELAYD_RESET_METADATA
= 17,
133 /* Ask the relay to rotate a stream file (2.11+) */
134 RELAYD_ROTATE_STREAM
= 18,
135 /* Rename a chunk after the rotation is completed (2.11+) */
136 RELAYD_ROTATE_RENAME
= 19,
137 /* Check if a chunk has data pending (2.11+) */
138 RELAYD_ROTATE_PENDING
= 20,
139 /* Create a folder on the relayd FS (2.11+) */
144 * lttcomm error code.
146 enum lttcomm_return_code
{
147 LTTCOMM_CONSUMERD_SUCCESS
= 0, /* Everything went fine. */
148 LTTCOMM_CONSUMERD_COMMAND_SOCK_READY
= 1, /* Command socket ready */
149 LTTCOMM_CONSUMERD_SUCCESS_RECV_FD
, /* Success on receiving fds */
150 LTTCOMM_CONSUMERD_ERROR_RECV_FD
, /* Error on receiving fds */
151 LTTCOMM_CONSUMERD_ERROR_RECV_CMD
, /* Error on receiving command */
152 LTTCOMM_CONSUMERD_POLL_ERROR
, /* Error in polling thread */
153 LTTCOMM_CONSUMERD_POLL_NVAL
, /* Poll on closed fd */
154 LTTCOMM_CONSUMERD_POLL_HUP
, /* All fds have hungup */
155 LTTCOMM_CONSUMERD_EXIT_SUCCESS
, /* Consumerd exiting normally */
156 LTTCOMM_CONSUMERD_EXIT_FAILURE
, /* Consumerd exiting on error */
157 LTTCOMM_CONSUMERD_OUTFD_ERROR
, /* Error opening the tracefile */
158 LTTCOMM_CONSUMERD_SPLICE_EBADF
, /* EBADF from splice(2) */
159 LTTCOMM_CONSUMERD_SPLICE_EINVAL
, /* EINVAL from splice(2) */
160 LTTCOMM_CONSUMERD_SPLICE_ENOMEM
, /* ENOMEM from splice(2) */
161 LTTCOMM_CONSUMERD_SPLICE_ESPIPE
, /* ESPIPE from splice(2) */
162 LTTCOMM_CONSUMERD_ENOMEM
, /* Consumer is out of memory */
163 LTTCOMM_CONSUMERD_ERROR_METADATA
, /* Error with metadata. */
164 LTTCOMM_CONSUMERD_FATAL
, /* Fatal error. */
165 LTTCOMM_CONSUMERD_RELAYD_FAIL
, /* Error on remote relayd */
166 LTTCOMM_CONSUMERD_CHANNEL_FAIL
, /* Channel creation failed. */
167 LTTCOMM_CONSUMERD_CHAN_NOT_FOUND
, /* Channel not found. */
168 LTTCOMM_CONSUMERD_ALREADY_SET
, /* Resource already set. */
169 LTTCOMM_CONSUMERD_ROTATION_FAIL
, /* Rotation has failed. */
170 LTTCOMM_CONSUMERD_ROTATE_RENAME_FAILED
, /* Rotation rename has failed. */
171 LTTCOMM_CONSUMERD_ROTATION_PENDING_LOCAL_FAILED
, /* Rotation pending relay failed. */
172 LTTCOMM_CONSUMERD_ROTATION_PENDING_RELAY_FAILED
, /* Rotation pending relay failed. */
173 LTTCOMM_CONSUMERD_MKDIR_FAILED
, /* mkdir has failed. */
174 LTTCOMM_CONSUMERD_SNAPSHOT_FAILED
, /* snapshot has failed. */
176 /* MUST be last element */
177 LTTCOMM_NR
, /* Last element */
180 /* lttng socket protocol. */
181 enum lttcomm_sock_proto
{
187 * Index in the net_families array below. Please keep in sync!
189 enum lttcomm_sock_domain
{
194 enum lttcomm_metadata_command
{
195 LTTCOMM_METADATA_REQUEST
= 1,
199 * Commands sent from the consumerd to the sessiond to request if new metadata
200 * is available. This message is used to find the per UID _or_ per PID registry
201 * for the channel key. For per UID lookup, the triplet
202 * bits_per_long/uid/session_id is used. On lookup failure, we search for the
203 * per PID registry indexed by session id ignoring the other values.
205 struct lttcomm_metadata_request_msg
{
206 uint64_t session_id
; /* Tracing session id */
207 uint64_t session_id_per_pid
; /* Tracing session id for per-pid */
208 uint32_t bits_per_long
; /* Consumer ABI */
210 uint64_t key
; /* Metadata channel key. */
213 struct lttcomm_sockaddr
{
214 enum lttcomm_sock_domain type
;
216 struct sockaddr_in sin
;
217 struct sockaddr_in6 sin6
;
221 struct lttcomm_sock
{
223 enum lttcomm_sock_proto proto
;
224 struct lttcomm_sockaddr sockaddr
;
225 const struct lttcomm_proto_ops
*ops
;
229 * Relayd sock. Adds the protocol version to use for the communications with
232 struct lttcomm_relayd_sock
{
233 struct lttcomm_sock sock
;
238 struct lttcomm_net_family
{
240 int (*create
) (struct lttcomm_sock
*sock
, int type
, int proto
);
243 struct lttcomm_proto_ops
{
244 int (*bind
) (struct lttcomm_sock
*sock
);
245 int (*close
) (struct lttcomm_sock
*sock
);
246 int (*connect
) (struct lttcomm_sock
*sock
);
247 struct lttcomm_sock
*(*accept
) (struct lttcomm_sock
*sock
);
248 int (*listen
) (struct lttcomm_sock
*sock
, int backlog
);
249 ssize_t (*recvmsg
) (struct lttcomm_sock
*sock
, void *buf
, size_t len
,
251 ssize_t (*sendmsg
) (struct lttcomm_sock
*sock
, const void *buf
,
252 size_t len
, int flags
);
256 * Data structure received from lttng client to session daemon.
258 struct lttcomm_session_msg
{
259 uint32_t cmd_type
; /* enum lttcomm_sessiond_command */
260 struct lttng_session session
;
261 struct lttng_domain domain
;
265 char channel_name
[LTTNG_SYMBOL_NAME_LEN
];
266 struct lttng_event event LTTNG_PACKED
;
267 /* Length of following filter expression. */
268 uint32_t expression_len
;
269 /* Length of following bytecode for filter. */
270 uint32_t bytecode_len
;
271 /* Exclusion count (fixed-size strings). */
272 uint32_t exclusion_count
;
273 /* Userspace probe location size. */
274 uint32_t userspace_probe_location_len
;
276 * After this structure, the following variable-length
277 * items are transmitted:
278 * - char exclusion_names[LTTNG_SYMBOL_NAME_LEN][exclusion_count]
279 * - char filter_expression[expression_len]
280 * - unsigned char filter_bytecode[bytecode_len]
282 } LTTNG_PACKED enable
;
284 char channel_name
[LTTNG_SYMBOL_NAME_LEN
];
285 struct lttng_event event LTTNG_PACKED
;
286 /* Length of following filter expression. */
287 uint32_t expression_len
;
288 /* Length of following bytecode for filter. */
289 uint32_t bytecode_len
;
291 * After this structure, the following variable-length
292 * items are transmitted:
293 * - unsigned char filter_expression[expression_len]
294 * - unsigned char filter_bytecode[bytecode_len]
296 } LTTNG_PACKED disable
;
299 struct lttng_channel chan LTTNG_PACKED
;
300 /* struct lttng_channel_extended is already packed. */
301 struct lttng_channel_extended extended
;
302 } LTTNG_PACKED channel
;
305 char channel_name
[LTTNG_SYMBOL_NAME_LEN
];
306 struct lttng_event_context ctx LTTNG_PACKED
;
307 uint32_t provider_name_len
;
308 uint32_t context_name_len
;
309 } LTTNG_PACKED context
;
310 /* Use by register_consumer */
316 char channel_name
[LTTNG_SYMBOL_NAME_LEN
];
318 struct lttng_calibrate calibrate
;
319 /* Used by the set_consumer_url and used by create_session also call */
321 /* Number of lttng_uri following */
325 struct lttng_snapshot_output output LTTNG_PACKED
;
326 } LTTNG_PACKED snapshot_output
;
329 struct lttng_snapshot_output output LTTNG_PACKED
;
330 } LTTNG_PACKED snapshot_record
;
333 unsigned int timer_interval
; /* usec */
334 } LTTNG_PACKED session_live
;
336 struct lttng_save_session_attr attr
; /* struct already packed */
337 } LTTNG_PACKED save_session
;
339 char shm_path
[PATH_MAX
];
340 } LTTNG_PACKED set_shm_path
;
343 } LTTNG_PACKED pid_tracker
;
346 } LTTNG_PACKED trigger
;
348 uint64_t rotation_id
;
349 } LTTNG_PACKED get_rotation_info
;
351 /* enum lttng_rotation_schedule_type */
354 * If set == 1, set schedule to value, if set == 0,
355 * clear this schedule type.
359 } LTTNG_PACKED rotation_set_schedule
;
362 * Includes the null-terminator.
363 * Must be an absolute path.
365 * Size bounded by LTTNG_PATH_MAX.
367 uint16_t home_dir_size
;
368 uint64_t session_descriptor_size
;
369 /* An lttng_session_descriptor follows. */
370 } LTTNG_PACKED create_session
;
374 #define LTTNG_FILTER_MAX_LEN 65536
375 #define LTTNG_SESSION_DESCRIPTOR_MAX_LEN 65536
378 * Filter bytecode data. The reloc table is located at the end of the
379 * bytecode. It is made of tuples: (uint16_t, var. len. string). It
380 * starts at reloc_table_offset.
382 #define LTTNG_FILTER_PADDING 32
383 struct lttng_filter_bytecode
{
384 uint32_t len
; /* len of data */
385 uint32_t reloc_table_offset
;
387 char padding
[LTTNG_FILTER_PADDING
];
392 * Event exclusion data. At the end of the structure, there will actually
393 * by zero or more names, where the actual number of names is given by
394 * the 'count' item of the structure.
396 #define LTTNG_EVENT_EXCLUSION_PADDING 32
397 struct lttng_event_exclusion
{
399 char padding
[LTTNG_EVENT_EXCLUSION_PADDING
];
400 char names
[0][LTTNG_SYMBOL_NAME_LEN
];
403 #define LTTNG_EVENT_EXCLUSION_NAME_AT(_exclusion, _i) \
404 (&(_exclusion)->names[_i][0])
407 * Event command header.
409 struct lttcomm_event_command_header
{
410 /* Number of events */
415 * Event extended info header. This is the structure preceding each
416 * extended info data.
418 struct lttcomm_event_extended_header
{
420 * Size of filter string immediately following this header.
421 * This size includes the terminal null character.
426 * Number of exclusion names, immediately following the filter
427 * string. Each exclusion name has a fixed length of
428 * LTTNG_SYMBOL_NAME_LEN bytes, including the terminal null
431 uint32_t nb_exclusions
;
434 * Size of the event's userspace probe location (if applicable).
436 uint32_t userspace_probe_location_len
;
440 * Data structure for the response from sessiond to the lttng client.
442 struct lttcomm_lttng_msg
{
443 uint32_t cmd_type
; /* enum lttcomm_sessiond_command */
444 uint32_t ret_code
; /* enum lttcomm_return_code */
445 uint32_t pid
; /* pid_t */
446 uint32_t cmd_header_size
;
450 struct lttcomm_lttng_output_id
{
455 * lttcomm_consumer_msg is the message sent from sessiond to consumerd
456 * to either add a channel, add a stream, update a stream, or stop
459 struct lttcomm_consumer_msg
{
460 uint32_t cmd_type
; /* enum lttng_consumer_command */
463 uint64_t channel_key
;
465 char pathname
[PATH_MAX
];
469 /* nb_init_streams is the number of streams open initially. */
470 uint32_t nb_init_streams
;
471 char name
[LTTNG_SYMBOL_NAME_LEN
];
472 /* Use splice or mmap to consume this fd */
473 enum lttng_event_output output
;
474 int type
; /* Per cpu or metadata. */
475 uint64_t tracefile_size
; /* bytes */
476 uint32_t tracefile_count
; /* number of tracefiles */
477 /* If the channel's streams have to be monitored or not. */
479 /* timer to check the streams usage in live mode (usec). */
480 unsigned int live_timer_interval
;
481 /* timer to sample a channel's positions (usec). */
482 unsigned int monitor_timer_interval
;
483 } LTTNG_PACKED channel
; /* Only used by Kernel. */
486 uint64_t channel_key
;
487 int32_t cpu
; /* On which CPU this stream is assigned. */
488 /* Tells the consumer if the stream should be or not monitored. */
491 * The archive id that was "current" at the time this
492 * stream was created. This is used to determine
493 * whether a rotation request was sent before or after
494 * the creation of a stream.
496 uint64_t trace_archive_id
;
497 } LTTNG_PACKED stream
; /* Only used by Kernel. */
500 enum lttng_stream_type type
;
501 /* Open socket to the relayd */
502 struct lttcomm_relayd_sock sock
;
503 /* Tracing session id associated to the relayd. */
505 /* Relayd session id, only used with control socket. */
506 uint64_t relayd_session_id
;
507 } LTTNG_PACKED relayd_sock
;
509 uint64_t net_seq_idx
;
510 } LTTNG_PACKED destroy_relayd
;
513 } LTTNG_PACKED data_pending
;
515 uint64_t subbuf_size
; /* bytes */
516 uint64_t num_subbuf
; /* power of 2 */
517 int32_t overwrite
; /* 1: overwrite, 0: discard */
518 uint32_t switch_timer_interval
; /* usec */
519 uint32_t read_timer_interval
; /* usec */
520 unsigned int live_timer_interval
; /* usec */
521 uint32_t monitor_timer_interval
; /* usec */
522 int32_t output
; /* splice, mmap */
523 int32_t type
; /* metadata or per_cpu */
524 uint64_t session_id
; /* Tracing session id */
525 char pathname
[PATH_MAX
]; /* Channel file path. */
526 char name
[LTTNG_SYMBOL_NAME_LEN
]; /* Channel name. */
527 uint32_t uid
; /* User ID of the session */
528 uint32_t gid
; /* Group ID ot the session */
529 uint64_t relayd_id
; /* Relayd id if apply. */
530 uint64_t key
; /* Unique channel key. */
531 unsigned char uuid
[UUID_LEN
]; /* uuid for ust tracer. */
532 uint32_t chan_id
; /* Channel ID on the tracer side. */
533 uint64_t tracefile_size
; /* bytes */
534 uint32_t tracefile_count
; /* number of tracefiles */
535 uint64_t session_id_per_pid
; /* Per-pid session ID. */
536 /* Tells the consumer if the stream should be or not monitored. */
539 * For UST per UID buffers, this is the application UID of the
540 * channel. This can be different from the user UID requesting the
541 * channel creation and used for the rights on the stream file
542 * because the application can be in the tracing for instance.
544 uint32_t ust_app_uid
;
545 int64_t blocking_timeout
;
547 * The archive id that was "current" at the time this
548 * channel was created. This is used to determine
549 * whether a rotation request was sent before or after
550 * the creation of a channel.
552 uint64_t trace_archive_id
;
553 char root_shm_path
[PATH_MAX
];
554 char shm_path
[PATH_MAX
];
555 } LTTNG_PACKED ask_channel
;
558 } LTTNG_PACKED get_channel
;
561 } LTTNG_PACKED destroy_channel
;
563 uint64_t key
; /* Metadata channel key. */
564 uint64_t target_offset
; /* Offset in the consumer */
565 uint64_t len
; /* Length of metadata to be received. */
566 uint64_t version
; /* Version of the metadata. */
567 } LTTNG_PACKED push_metadata
;
569 uint64_t key
; /* Metadata channel key. */
570 } LTTNG_PACKED close_metadata
;
572 uint64_t key
; /* Metadata channel key. */
573 } LTTNG_PACKED setup_metadata
;
575 uint64_t key
; /* Channel key. */
576 } LTTNG_PACKED flush_channel
;
578 uint64_t key
; /* Channel key. */
579 } LTTNG_PACKED clear_quiescent_channel
;
581 char pathname
[PATH_MAX
];
582 /* Indicate if the snapshot goes on the relayd or locally. */
584 uint32_t metadata
; /* This a metadata snapshot. */
585 uint64_t relayd_id
; /* Relayd id if apply. */
587 uint64_t nb_packets_per_stream
;
589 * The session's current trace archive id is propagated
590 * since a snapshot triggers the creation of an
591 * ephemeral metadata stream.
593 uint64_t trace_archive_id
;
594 } LTTNG_PACKED snapshot_channel
;
596 uint64_t channel_key
;
597 uint64_t net_seq_idx
;
598 } LTTNG_PACKED sent_streams
;
601 uint64_t channel_key
;
602 } LTTNG_PACKED discarded_events
;
605 uint64_t channel_key
;
606 } LTTNG_PACKED lost_packets
;
609 } LTTNG_PACKED regenerate_metadata
;
611 char pathname
[PATH_MAX
];
612 uint32_t metadata
; /* This is a metadata channel. */
613 uint64_t relayd_id
; /* Relayd id if apply. */
615 uint64_t new_chunk_id
;
616 } LTTNG_PACKED rotate_channel
;
618 char old_path
[LTTNG_PATH_MAX
];
619 char new_path
[LTTNG_PATH_MAX
];
620 uint64_t relayd_id
; /* Relayd id if apply. */
624 } LTTNG_PACKED rotate_rename
;
628 } LTTNG_PACKED check_rotation_pending_local
;
633 } LTTNG_PACKED check_rotation_pending_relay
;
635 char path
[LTTNG_PATH_MAX
];
636 uint64_t relayd_id
; /* Relayd id if apply. */
640 } LTTNG_PACKED mkdir
;
645 * Channel monitoring message returned to the session daemon on every
646 * monitor timer expiration.
648 struct lttcomm_consumer_channel_monitor_msg
{
649 /* Key of the sampled channel. */
652 * Lowest and highest usage (bytes) at the moment the sample was taken.
654 uint64_t lowest
, highest
;
656 * Sum of all the consumed positions for a channel.
658 uint64_t total_consumed
;
662 * Status message returned to the sessiond after a received command.
664 struct lttcomm_consumer_status_msg
{
665 enum lttcomm_return_code ret_code
;
668 struct lttcomm_consumer_status_channel
{
669 enum lttcomm_return_code ret_code
;
671 unsigned int stream_count
;
674 #ifdef HAVE_LIBLTTNG_UST_CTL
676 #include <lttng/ust-abi.h>
679 * Data structure for the commands sent from sessiond to UST.
681 struct lttcomm_ust_msg
{
685 struct lttng_ust_channel channel
;
686 struct lttng_ust_stream stream
;
687 struct lttng_ust_event event
;
688 struct lttng_ust_context context
;
689 struct lttng_ust_tracer_version version
;
694 * Data structure for the response from UST to the session daemon.
695 * cmd_type is sent back in the reply for validation.
697 struct lttcomm_ust_reply
{
700 uint32_t ret_code
; /* enum lttcomm_return_code */
701 uint32_t ret_val
; /* return value */
704 uint64_t memory_map_size
;
705 } LTTNG_PACKED channel
;
707 uint64_t memory_map_size
;
708 } LTTNG_PACKED stream
;
709 struct lttng_ust_tracer_version version
;
713 #endif /* HAVE_LIBLTTNG_UST_CTL */
715 LTTNG_HIDDEN
const char *lttcomm_get_readable_code(enum lttcomm_return_code code
);
717 LTTNG_HIDDEN
int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr
*sockaddr
,
718 const char *ip
, unsigned int port
);
719 LTTNG_HIDDEN
int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr
*sockaddr
,
720 const char *ip
, unsigned int port
);
722 LTTNG_HIDDEN
struct lttcomm_sock
*lttcomm_alloc_sock(enum lttcomm_sock_proto proto
);
723 LTTNG_HIDDEN
int lttcomm_create_sock(struct lttcomm_sock
*sock
);
724 LTTNG_HIDDEN
struct lttcomm_sock
*lttcomm_alloc_sock_from_uri(struct lttng_uri
*uri
);
725 LTTNG_HIDDEN
void lttcomm_destroy_sock(struct lttcomm_sock
*sock
);
726 LTTNG_HIDDEN
struct lttcomm_sock
*lttcomm_alloc_copy_sock(struct lttcomm_sock
*src
);
727 LTTNG_HIDDEN
void lttcomm_copy_sock(struct lttcomm_sock
*dst
,
728 struct lttcomm_sock
*src
);
730 /* Relayd socket object. */
731 LTTNG_HIDDEN
struct lttcomm_relayd_sock
*lttcomm_alloc_relayd_sock(
732 struct lttng_uri
*uri
, uint32_t major
, uint32_t minor
);
734 LTTNG_HIDDEN
int lttcomm_setsockopt_rcv_timeout(int sock
, unsigned int msec
);
735 LTTNG_HIDDEN
int lttcomm_setsockopt_snd_timeout(int sock
, unsigned int msec
);
737 LTTNG_HIDDEN
int lttcomm_sock_get_port(const struct lttcomm_sock
*sock
,
740 * Set a port to an lttcomm_sock. This will have no effect is the socket is
743 LTTNG_HIDDEN
int lttcomm_sock_set_port(struct lttcomm_sock
*sock
, uint16_t port
);
745 LTTNG_HIDDEN
void lttcomm_init(void);
746 /* Get network timeout, in milliseconds */
747 LTTNG_HIDDEN
unsigned long lttcomm_get_network_timeout(void);
749 #endif /* _LTTNG_SESSIOND_COMM_H */