Add client notification API
[lttng-tools.git] / src / common / sessiond-comm / sessiond-comm.h
1 /*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 * Julien Desfossez <julien.desfossez@polymtl.ca>
4 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 *
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.
9 *
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
13 * more details.
14 *
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.
18 */
19
20 /*
21 * This header is meant for liblttng and libust internal use ONLY. These
22 * declarations should NOT be considered stable API.
23 */
24
25 #ifndef _LTTNG_SESSIOND_COMM_H
26 #define _LTTNG_SESSIOND_COMM_H
27
28 #include <limits.h>
29 #include <lttng/lttng.h>
30 #include <lttng/snapshot-internal.h>
31 #include <lttng/save-internal.h>
32 #include <common/compat/socket.h>
33 #include <common/uri.h>
34 #include <common/defaults.h>
35 #include <common/compat/uuid.h>
36
37 #include <arpa/inet.h>
38 #include <netinet/in.h>
39 #include <sys/un.h>
40
41 #include "inet.h"
42 #include "inet6.h"
43 #include <common/unix.h>
44
45 /* Queue size of listen(2) */
46 #define LTTNG_SESSIOND_COMM_MAX_LISTEN 64
47
48 /* Maximum number of FDs that can be sent over a Unix socket */
49 #define LTTCOMM_MAX_SEND_FDS 4
50
51 /*
52 * Get the error code index from 0 since LTTCOMM_OK start at 1000
53 */
54 #define LTTCOMM_ERR_INDEX(code) (code - LTTCOMM_CONSUMERD_COMMAND_SOCK_READY)
55
56 enum lttcomm_sessiond_command {
57 /* Tracer command */
58 LTTNG_ADD_CONTEXT = 0,
59 /* LTTNG_CALIBRATE used to be here */
60 LTTNG_DISABLE_CHANNEL = 2,
61 LTTNG_DISABLE_EVENT = 3,
62 LTTNG_LIST_SYSCALLS = 4,
63 LTTNG_ENABLE_CHANNEL = 5,
64 LTTNG_ENABLE_EVENT = 6,
65 /* 7 */
66 /* Session daemon command */
67 LTTNG_CREATE_SESSION = 8,
68 LTTNG_DESTROY_SESSION = 9,
69 LTTNG_LIST_CHANNELS = 10,
70 LTTNG_LIST_DOMAINS = 11,
71 LTTNG_LIST_EVENTS = 12,
72 LTTNG_LIST_SESSIONS = 13,
73 LTTNG_LIST_TRACEPOINTS = 14,
74 LTTNG_REGISTER_CONSUMER = 15,
75 LTTNG_START_TRACE = 16,
76 LTTNG_STOP_TRACE = 17,
77 LTTNG_LIST_TRACEPOINT_FIELDS = 18,
78
79 /* Consumer */
80 LTTNG_DISABLE_CONSUMER = 19,
81 LTTNG_ENABLE_CONSUMER = 20,
82 LTTNG_SET_CONSUMER_URI = 21,
83 /* 22 */
84 /* 23 */
85 LTTNG_DATA_PENDING = 24,
86 LTTNG_SNAPSHOT_ADD_OUTPUT = 25,
87 LTTNG_SNAPSHOT_DEL_OUTPUT = 26,
88 LTTNG_SNAPSHOT_LIST_OUTPUT = 27,
89 LTTNG_SNAPSHOT_RECORD = 28,
90 LTTNG_CREATE_SESSION_SNAPSHOT = 29,
91 LTTNG_CREATE_SESSION_LIVE = 30,
92 LTTNG_SAVE_SESSION = 31,
93 LTTNG_TRACK_PID = 32,
94 LTTNG_UNTRACK_PID = 33,
95 LTTNG_LIST_TRACKER_PIDS = 34,
96 LTTNG_SET_SESSION_SHM_PATH = 40,
97 LTTNG_REGENERATE_METADATA = 41,
98 LTTNG_REGENERATE_STATEDUMP = 42,
99 };
100
101 enum lttcomm_relayd_command {
102 RELAYD_ADD_STREAM = 1,
103 RELAYD_CREATE_SESSION = 2,
104 RELAYD_START_DATA = 3,
105 RELAYD_UPDATE_SYNC_INFO = 4,
106 RELAYD_VERSION = 5,
107 RELAYD_SEND_METADATA = 6,
108 RELAYD_CLOSE_STREAM = 7,
109 RELAYD_DATA_PENDING = 8,
110 RELAYD_QUIESCENT_CONTROL = 9,
111 RELAYD_BEGIN_DATA_PENDING = 10,
112 RELAYD_END_DATA_PENDING = 11,
113 RELAYD_ADD_INDEX = 12,
114 RELAYD_SEND_INDEX = 13,
115 RELAYD_CLOSE_INDEX = 14,
116 /* Live-reading commands (2.4+). */
117 RELAYD_LIST_SESSIONS = 15,
118 /* All streams of the channel have been sent to the relayd (2.4+). */
119 RELAYD_STREAMS_SENT = 16,
120 /* Ask the relay to reset the metadata trace file (2.8+) */
121 RELAYD_RESET_METADATA = 17,
122 };
123
124 /*
125 * lttcomm error code.
126 */
127 enum lttcomm_return_code {
128 LTTCOMM_CONSUMERD_SUCCESS = 0, /* Everything went fine. */
129 LTTCOMM_CONSUMERD_COMMAND_SOCK_READY = 1, /* Command socket ready */
130 LTTCOMM_CONSUMERD_SUCCESS_RECV_FD, /* Success on receiving fds */
131 LTTCOMM_CONSUMERD_ERROR_RECV_FD, /* Error on receiving fds */
132 LTTCOMM_CONSUMERD_ERROR_RECV_CMD, /* Error on receiving command */
133 LTTCOMM_CONSUMERD_POLL_ERROR, /* Error in polling thread */
134 LTTCOMM_CONSUMERD_POLL_NVAL, /* Poll on closed fd */
135 LTTCOMM_CONSUMERD_POLL_HUP, /* All fds have hungup */
136 LTTCOMM_CONSUMERD_EXIT_SUCCESS, /* Consumerd exiting normally */
137 LTTCOMM_CONSUMERD_EXIT_FAILURE, /* Consumerd exiting on error */
138 LTTCOMM_CONSUMERD_OUTFD_ERROR, /* Error opening the tracefile */
139 LTTCOMM_CONSUMERD_SPLICE_EBADF, /* EBADF from splice(2) */
140 LTTCOMM_CONSUMERD_SPLICE_EINVAL, /* EINVAL from splice(2) */
141 LTTCOMM_CONSUMERD_SPLICE_ENOMEM, /* ENOMEM from splice(2) */
142 LTTCOMM_CONSUMERD_SPLICE_ESPIPE, /* ESPIPE from splice(2) */
143 LTTCOMM_CONSUMERD_ENOMEM, /* Consumer is out of memory */
144 LTTCOMM_CONSUMERD_ERROR_METADATA, /* Error with metadata. */
145 LTTCOMM_CONSUMERD_FATAL, /* Fatal error. */
146 LTTCOMM_CONSUMERD_RELAYD_FAIL, /* Error on remote relayd */
147 LTTCOMM_CONSUMERD_CHANNEL_FAIL, /* Channel creation failed. */
148 LTTCOMM_CONSUMERD_CHAN_NOT_FOUND, /* Channel not found. */
149
150 /* MUST be last element */
151 LTTCOMM_NR, /* Last element */
152 };
153
154 /* lttng socket protocol. */
155 enum lttcomm_sock_proto {
156 LTTCOMM_SOCK_UDP,
157 LTTCOMM_SOCK_TCP,
158 };
159
160 /*
161 * Index in the net_families array below. Please keep in sync!
162 */
163 enum lttcomm_sock_domain {
164 LTTCOMM_INET = 0,
165 LTTCOMM_INET6 = 1,
166 };
167
168 enum lttcomm_metadata_command {
169 LTTCOMM_METADATA_REQUEST = 1,
170 };
171
172 /*
173 * Commands sent from the consumerd to the sessiond to request if new metadata
174 * is available. This message is used to find the per UID _or_ per PID registry
175 * for the channel key. For per UID lookup, the triplet
176 * bits_per_long/uid/session_id is used. On lookup failure, we search for the
177 * per PID registry indexed by session id ignoring the other values.
178 */
179 struct lttcomm_metadata_request_msg {
180 uint64_t session_id; /* Tracing session id */
181 uint64_t session_id_per_pid; /* Tracing session id for per-pid */
182 uint32_t bits_per_long; /* Consumer ABI */
183 uint32_t uid;
184 uint64_t key; /* Metadata channel key. */
185 } LTTNG_PACKED;
186
187 struct lttcomm_sockaddr {
188 enum lttcomm_sock_domain type;
189 union {
190 struct sockaddr_in sin;
191 struct sockaddr_in6 sin6;
192 } addr;
193 } LTTNG_PACKED;
194
195 struct lttcomm_sock {
196 int32_t fd;
197 enum lttcomm_sock_proto proto;
198 struct lttcomm_sockaddr sockaddr;
199 const struct lttcomm_proto_ops *ops;
200 } LTTNG_PACKED;
201
202 /*
203 * Relayd sock. Adds the protocol version to use for the communications with
204 * the relayd.
205 */
206 struct lttcomm_relayd_sock {
207 struct lttcomm_sock sock;
208 uint32_t major;
209 uint32_t minor;
210 } LTTNG_PACKED;
211
212 struct lttcomm_net_family {
213 int family;
214 int (*create) (struct lttcomm_sock *sock, int type, int proto);
215 };
216
217 struct lttcomm_proto_ops {
218 int (*bind) (struct lttcomm_sock *sock);
219 int (*close) (struct lttcomm_sock *sock);
220 int (*connect) (struct lttcomm_sock *sock);
221 struct lttcomm_sock *(*accept) (struct lttcomm_sock *sock);
222 int (*listen) (struct lttcomm_sock *sock, int backlog);
223 ssize_t (*recvmsg) (struct lttcomm_sock *sock, void *buf, size_t len,
224 int flags);
225 ssize_t (*sendmsg) (struct lttcomm_sock *sock, const void *buf,
226 size_t len, int flags);
227 };
228
229 /*
230 * Data structure received from lttng client to session daemon.
231 */
232 struct lttcomm_session_msg {
233 uint32_t cmd_type; /* enum lttcomm_sessiond_command */
234 struct lttng_session session;
235 struct lttng_domain domain;
236 union {
237 /* Event data */
238 struct {
239 char channel_name[LTTNG_SYMBOL_NAME_LEN];
240 struct lttng_event event LTTNG_PACKED;
241 /* Length of following filter expression. */
242 uint32_t expression_len;
243 /* Length of following bytecode for filter. */
244 uint32_t bytecode_len;
245 /* exclusion data */
246 uint32_t exclusion_count;
247 /*
248 * After this structure, the following variable-length
249 * items are transmitted:
250 * - char exclusion_names[LTTNG_SYMBOL_NAME_LEN][exclusion_count]
251 * - unsigned char filter_expression[expression_len]
252 * - unsigned char filter_bytecode[bytecode_len]
253 */
254 } LTTNG_PACKED enable;
255 struct {
256 char channel_name[LTTNG_SYMBOL_NAME_LEN];
257 struct lttng_event event LTTNG_PACKED;
258 /* Length of following filter expression. */
259 uint32_t expression_len;
260 /* Length of following bytecode for filter. */
261 uint32_t bytecode_len;
262 /*
263 * After this structure, the following variable-length
264 * items are transmitted:
265 * - unsigned char filter_expression[expression_len]
266 * - unsigned char filter_bytecode[bytecode_len]
267 */
268 } LTTNG_PACKED disable;
269 /* Create channel */
270 struct {
271 struct lttng_channel chan LTTNG_PACKED;
272 } LTTNG_PACKED channel;
273 /* Context */
274 struct {
275 char channel_name[LTTNG_SYMBOL_NAME_LEN];
276 struct lttng_event_context ctx LTTNG_PACKED;
277 uint32_t provider_name_len;
278 uint32_t context_name_len;
279 } LTTNG_PACKED context;
280 /* Use by register_consumer */
281 struct {
282 char path[PATH_MAX];
283 } LTTNG_PACKED reg;
284 /* List */
285 struct {
286 char channel_name[LTTNG_SYMBOL_NAME_LEN];
287 } LTTNG_PACKED list;
288 struct lttng_calibrate calibrate;
289 /* Used by the set_consumer_url and used by create_session also call */
290 struct {
291 /* Number of lttng_uri following */
292 uint32_t size;
293 } LTTNG_PACKED uri;
294 struct {
295 struct lttng_snapshot_output output LTTNG_PACKED;
296 } LTTNG_PACKED snapshot_output;
297 struct {
298 uint32_t wait;
299 struct lttng_snapshot_output output LTTNG_PACKED;
300 } LTTNG_PACKED snapshot_record;
301 struct {
302 uint32_t nb_uri;
303 unsigned int timer_interval; /* usec */
304 } LTTNG_PACKED session_live;
305 struct {
306 struct lttng_save_session_attr attr; /* struct already packed */
307 } LTTNG_PACKED save_session;
308 struct {
309 char shm_path[PATH_MAX];
310 } LTTNG_PACKED set_shm_path;
311 struct {
312 uint32_t pid;
313 } LTTNG_PACKED pid_tracker;
314 } u;
315 } LTTNG_PACKED;
316
317 #define LTTNG_FILTER_MAX_LEN 65536
318
319 /*
320 * Filter bytecode data. The reloc table is located at the end of the
321 * bytecode. It is made of tuples: (uint16_t, var. len. string). It
322 * starts at reloc_table_offset.
323 */
324 #define LTTNG_FILTER_PADDING 32
325 struct lttng_filter_bytecode {
326 uint32_t len; /* len of data */
327 uint32_t reloc_table_offset;
328 uint64_t seqnum;
329 char padding[LTTNG_FILTER_PADDING];
330 char data[0];
331 } LTTNG_PACKED;
332
333 /*
334 * Event exclusion data. At the end of the structure, there will actually
335 * by zero or more names, where the actual number of names is given by
336 * the 'count' item of the structure.
337 */
338 #define LTTNG_EVENT_EXCLUSION_PADDING 32
339 struct lttng_event_exclusion {
340 uint32_t count;
341 char padding[LTTNG_EVENT_EXCLUSION_PADDING];
342 char names[0][LTTNG_SYMBOL_NAME_LEN];
343 } LTTNG_PACKED;
344
345 #define LTTNG_EVENT_EXCLUSION_NAME_AT(_exclusion, _i) \
346 (&(_exclusion)->names[_i][0])
347
348 /*
349 * Event command header.
350 */
351 struct lttcomm_event_command_header {
352 /* Number of events */
353 uint32_t nb_events;
354 } LTTNG_PACKED;
355
356 /*
357 * Event extended info header. This is the structure preceding each
358 * extended info data.
359 */
360 struct lttcomm_event_extended_header {
361 /*
362 * Size of filter string immediately following this header.
363 * This size includes the terminal null character.
364 */
365 uint32_t filter_len;
366
367 /*
368 * Number of exclusion names, immediately following the filter
369 * string. Each exclusion name has a fixed length of
370 * LTTNG_SYMBOL_NAME_LEN bytes, including the terminal null
371 * character.
372 */
373 uint32_t nb_exclusions;
374 } LTTNG_PACKED;
375
376 /*
377 * Channel extended info.
378 */
379 struct lttcomm_channel_extended {
380 uint64_t discarded_events;
381 uint64_t lost_packets;
382 } LTTNG_PACKED;
383
384 /*
385 * Data structure for the response from sessiond to the lttng client.
386 */
387 struct lttcomm_lttng_msg {
388 uint32_t cmd_type; /* enum lttcomm_sessiond_command */
389 uint32_t ret_code; /* enum lttcomm_return_code */
390 uint32_t pid; /* pid_t */
391 uint32_t cmd_header_size;
392 uint32_t data_size;
393 } LTTNG_PACKED;
394
395 struct lttcomm_lttng_output_id {
396 uint32_t id;
397 } LTTNG_PACKED;
398
399 /*
400 * lttcomm_consumer_msg is the message sent from sessiond to consumerd
401 * to either add a channel, add a stream, update a stream, or stop
402 * operation.
403 */
404 struct lttcomm_consumer_msg {
405 uint32_t cmd_type; /* enum consumerd_command */
406 union {
407 struct {
408 uint64_t channel_key;
409 uint64_t session_id;
410 char pathname[PATH_MAX];
411 uint32_t uid;
412 uint32_t gid;
413 uint64_t relayd_id;
414 /* nb_init_streams is the number of streams open initially. */
415 uint32_t nb_init_streams;
416 char name[LTTNG_SYMBOL_NAME_LEN];
417 /* Use splice or mmap to consume this fd */
418 enum lttng_event_output output;
419 int type; /* Per cpu or metadata. */
420 uint64_t tracefile_size; /* bytes */
421 uint32_t tracefile_count; /* number of tracefiles */
422 /* If the channel's streams have to be monitored or not. */
423 uint32_t monitor;
424 /* timer to check the streams usage in live mode (usec). */
425 unsigned int live_timer_interval;
426 } LTTNG_PACKED channel; /* Only used by Kernel. */
427 struct {
428 uint64_t stream_key;
429 uint64_t channel_key;
430 int32_t cpu; /* On which CPU this stream is assigned. */
431 /* Tells the consumer if the stream should be or not monitored. */
432 uint32_t no_monitor;
433 } LTTNG_PACKED stream; /* Only used by Kernel. */
434 struct {
435 uint64_t net_index;
436 enum lttng_stream_type type;
437 /* Open socket to the relayd */
438 struct lttcomm_relayd_sock sock;
439 /* Tracing session id associated to the relayd. */
440 uint64_t session_id;
441 /* Relayd session id, only used with control socket. */
442 uint64_t relayd_session_id;
443 } LTTNG_PACKED relayd_sock;
444 struct {
445 uint64_t net_seq_idx;
446 } LTTNG_PACKED destroy_relayd;
447 struct {
448 uint64_t session_id;
449 } LTTNG_PACKED data_pending;
450 struct {
451 uint64_t subbuf_size; /* bytes */
452 uint64_t num_subbuf; /* power of 2 */
453 int32_t overwrite; /* 1: overwrite, 0: discard */
454 uint32_t switch_timer_interval; /* usec */
455 uint32_t read_timer_interval; /* usec */
456 unsigned int live_timer_interval; /* usec */
457 int32_t output; /* splice, mmap */
458 int32_t type; /* metadata or per_cpu */
459 uint64_t session_id; /* Tracing session id */
460 char pathname[PATH_MAX]; /* Channel file path. */
461 char name[LTTNG_SYMBOL_NAME_LEN]; /* Channel name. */
462 uint32_t uid; /* User ID of the session */
463 uint32_t gid; /* Group ID ot the session */
464 uint64_t relayd_id; /* Relayd id if apply. */
465 uint64_t key; /* Unique channel key. */
466 unsigned char uuid[UUID_LEN]; /* uuid for ust tracer. */
467 uint32_t chan_id; /* Channel ID on the tracer side. */
468 uint64_t tracefile_size; /* bytes */
469 uint32_t tracefile_count; /* number of tracefiles */
470 uint64_t session_id_per_pid; /* Per-pid session ID. */
471 /* Tells the consumer if the stream should be or not monitored. */
472 uint32_t monitor;
473 /*
474 * For UST per UID buffers, this is the application UID of the
475 * channel. This can be different from the user UID requesting the
476 * channel creation and used for the rights on the stream file
477 * because the application can be in the tracing for instance.
478 */
479 uint32_t ust_app_uid;
480 char root_shm_path[PATH_MAX];
481 char shm_path[PATH_MAX];
482 } LTTNG_PACKED ask_channel;
483 struct {
484 uint64_t key;
485 } LTTNG_PACKED get_channel;
486 struct {
487 uint64_t key;
488 } LTTNG_PACKED destroy_channel;
489 struct {
490 uint64_t key; /* Metadata channel key. */
491 uint64_t target_offset; /* Offset in the consumer */
492 uint64_t len; /* Length of metadata to be received. */
493 uint64_t version; /* Version of the metadata. */
494 } LTTNG_PACKED push_metadata;
495 struct {
496 uint64_t key; /* Metadata channel key. */
497 } LTTNG_PACKED close_metadata;
498 struct {
499 uint64_t key; /* Metadata channel key. */
500 } LTTNG_PACKED setup_metadata;
501 struct {
502 uint64_t key; /* Channel key. */
503 } LTTNG_PACKED flush_channel;
504 struct {
505 uint64_t key; /* Channel key. */
506 } LTTNG_PACKED clear_quiescent_channel;
507 struct {
508 char pathname[PATH_MAX];
509 /* Indicate if the snapshot goes on the relayd or locally. */
510 uint32_t use_relayd;
511 uint32_t metadata; /* This a metadata snapshot. */
512 uint64_t relayd_id; /* Relayd id if apply. */
513 uint64_t key;
514 uint64_t nb_packets_per_stream;
515 } LTTNG_PACKED snapshot_channel;
516 struct {
517 uint64_t channel_key;
518 uint64_t net_seq_idx;
519 } LTTNG_PACKED sent_streams;
520 struct {
521 uint64_t session_id;
522 uint64_t channel_key;
523 } LTTNG_PACKED discarded_events;
524 struct {
525 uint64_t session_id;
526 uint64_t channel_key;
527 } LTTNG_PACKED lost_packets;
528 struct {
529 uint64_t session_id;
530 } LTTNG_PACKED regenerate_metadata;
531 } u;
532 } LTTNG_PACKED;
533
534 /*
535 * Status message returned to the sessiond after a received command.
536 */
537 struct lttcomm_consumer_status_msg {
538 enum lttcomm_return_code ret_code;
539 } LTTNG_PACKED;
540
541 struct lttcomm_consumer_status_channel {
542 enum lttcomm_return_code ret_code;
543 uint64_t key;
544 unsigned int stream_count;
545 } LTTNG_PACKED;
546
547 #ifdef HAVE_LIBLTTNG_UST_CTL
548
549 #include <lttng/ust-abi.h>
550
551 /*
552 * Data structure for the commands sent from sessiond to UST.
553 */
554 struct lttcomm_ust_msg {
555 uint32_t handle;
556 uint32_t cmd;
557 union {
558 struct lttng_ust_channel channel;
559 struct lttng_ust_stream stream;
560 struct lttng_ust_event event;
561 struct lttng_ust_context context;
562 struct lttng_ust_tracer_version version;
563 } u;
564 } LTTNG_PACKED;
565
566 /*
567 * Data structure for the response from UST to the session daemon.
568 * cmd_type is sent back in the reply for validation.
569 */
570 struct lttcomm_ust_reply {
571 uint32_t handle;
572 uint32_t cmd;
573 uint32_t ret_code; /* enum lttcomm_return_code */
574 uint32_t ret_val; /* return value */
575 union {
576 struct {
577 uint64_t memory_map_size;
578 } LTTNG_PACKED channel;
579 struct {
580 uint64_t memory_map_size;
581 } LTTNG_PACKED stream;
582 struct lttng_ust_tracer_version version;
583 } u;
584 } LTTNG_PACKED;
585
586 #endif /* HAVE_LIBLTTNG_UST_CTL */
587
588 extern const char *lttcomm_get_readable_code(enum lttcomm_return_code code);
589
590 extern int lttcomm_init_inet_sockaddr(struct lttcomm_sockaddr *sockaddr,
591 const char *ip, unsigned int port);
592 extern int lttcomm_init_inet6_sockaddr(struct lttcomm_sockaddr *sockaddr,
593 const char *ip, unsigned int port);
594
595 extern struct lttcomm_sock *lttcomm_alloc_sock(enum lttcomm_sock_proto proto);
596 extern int lttcomm_create_sock(struct lttcomm_sock *sock);
597 extern struct lttcomm_sock *lttcomm_alloc_sock_from_uri(struct lttng_uri *uri);
598 extern void lttcomm_destroy_sock(struct lttcomm_sock *sock);
599 extern struct lttcomm_sock *lttcomm_alloc_copy_sock(struct lttcomm_sock *src);
600 extern void lttcomm_copy_sock(struct lttcomm_sock *dst,
601 struct lttcomm_sock *src);
602
603 /* Relayd socket object. */
604 extern struct lttcomm_relayd_sock *lttcomm_alloc_relayd_sock(
605 struct lttng_uri *uri, uint32_t major, uint32_t minor);
606
607 extern int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec);
608 extern int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec);
609
610 extern void lttcomm_init(void);
611 /* Get network timeout, in milliseconds */
612 extern unsigned long lttcomm_get_network_timeout(void);
613
614 #endif /* _LTTNG_SESSIOND_COMM_H */
This page took 0.046903 seconds and 4 git commands to generate.