Commit | Line | Data |
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00e2e675 DG |
1 | /* |
2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License, version 2 only, as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
11 | * more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., 51 | |
15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
18 | #define _GNU_SOURCE | |
19 | #include <assert.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <sys/stat.h> | |
77c7c900 | 24 | #include <inttypes.h> |
00e2e675 DG |
25 | |
26 | #include <common/common.h> | |
27 | #include <common/defaults.h> | |
28 | #include <common/sessiond-comm/relayd.h> | |
29 | ||
30 | #include "relayd.h" | |
31 | ||
32 | /* | |
33 | * Send command. Fill up the header and append the data. | |
34 | */ | |
35 | static int send_command(struct lttcomm_sock *sock, | |
7c9534d6 | 36 | enum lttcomm_relayd_command cmd, void *data, size_t size, |
00e2e675 DG |
37 | int flags) |
38 | { | |
39 | int ret; | |
40 | struct lttcomm_relayd_hdr header; | |
41 | char *buf; | |
42 | uint64_t buf_size = sizeof(header); | |
43 | ||
44 | if (data) { | |
45 | buf_size += size; | |
46 | } | |
47 | ||
48 | buf = zmalloc(buf_size); | |
49 | if (buf == NULL) { | |
50 | PERROR("zmalloc relayd send command buf"); | |
51 | ret = -1; | |
52 | goto alloc_error; | |
53 | } | |
54 | ||
55 | header.cmd = htobe32(cmd); | |
56 | header.data_size = htobe64(size); | |
57 | ||
58 | /* Zeroed for now since not used. */ | |
59 | header.cmd_version = 0; | |
60 | header.circuit_id = 0; | |
61 | ||
62 | /* Prepare buffer to send. */ | |
63 | memcpy(buf, &header, sizeof(header)); | |
64 | if (data) { | |
65 | memcpy(buf + sizeof(header), data, size); | |
66 | } | |
67 | ||
68 | ret = sock->ops->sendmsg(sock, buf, buf_size, flags); | |
69 | if (ret < 0) { | |
8994307f | 70 | ret = -errno; |
00e2e675 DG |
71 | goto error; |
72 | } | |
73 | ||
633d0084 | 74 | DBG3("Relayd sending command %d of size %" PRIu64, cmd, buf_size); |
00e2e675 DG |
75 | |
76 | error: | |
77 | free(buf); | |
78 | alloc_error: | |
79 | return ret; | |
80 | } | |
81 | ||
82 | /* | |
83 | * Receive reply data on socket. This MUST be call after send_command or else | |
84 | * could result in unexpected behavior(s). | |
85 | */ | |
86 | static int recv_reply(struct lttcomm_sock *sock, void *data, size_t size) | |
87 | { | |
88 | int ret; | |
89 | ||
633d0084 | 90 | DBG3("Relayd waiting for reply of size %ld", size); |
00e2e675 DG |
91 | |
92 | ret = sock->ops->recvmsg(sock, data, size, 0); | |
20275fe8 DG |
93 | if (ret <= 0 || ret != size) { |
94 | if (ret == 0) { | |
95 | /* Orderly shutdown. */ | |
96 | DBG("Socket %d has performed an orderly shutdown", sock->fd); | |
97 | } else { | |
98 | DBG("Receiving reply failed on sock %d for size %lu with ret %d", | |
99 | sock->fd, size, ret); | |
100 | } | |
101 | /* Always return -1 here and the caller can use errno. */ | |
102 | ret = -1; | |
00e2e675 DG |
103 | goto error; |
104 | } | |
105 | ||
106 | error: | |
107 | return ret; | |
108 | } | |
109 | ||
c5b6f4f0 DG |
110 | /* |
111 | * Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and | |
112 | * set session_id of the relayd if we have a successful reply from the relayd. | |
113 | * | |
20275fe8 DG |
114 | * On success, return 0 else a negative value which is either an errno error or |
115 | * a lttng error code from the relayd. | |
c5b6f4f0 DG |
116 | */ |
117 | int relayd_create_session(struct lttcomm_sock *sock, uint64_t *session_id) | |
118 | { | |
119 | int ret; | |
120 | struct lttcomm_relayd_status_session reply; | |
121 | ||
122 | assert(sock); | |
123 | assert(session_id); | |
124 | ||
125 | DBG("Relayd create session"); | |
126 | ||
127 | /* Send command */ | |
128 | ret = send_command(sock, RELAYD_CREATE_SESSION, NULL, 0, 0); | |
129 | if (ret < 0) { | |
130 | goto error; | |
131 | } | |
132 | ||
20275fe8 | 133 | /* Receive response */ |
c5b6f4f0 DG |
134 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
135 | if (ret < 0) { | |
136 | goto error; | |
137 | } | |
138 | ||
139 | reply.session_id = be64toh(reply.session_id); | |
140 | reply.ret_code = be32toh(reply.ret_code); | |
141 | ||
142 | /* Return session id or negative ret code. */ | |
143 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
144 | ret = -1; |
145 | ERR("Relayd create session replied error %d", reply.ret_code); | |
c5b6f4f0 DG |
146 | goto error; |
147 | } else { | |
148 | ret = 0; | |
149 | *session_id = reply.session_id; | |
150 | } | |
151 | ||
152 | DBG("Relayd session created with id %" PRIu64, reply.session_id); | |
153 | ||
154 | error: | |
155 | return ret; | |
156 | } | |
157 | ||
00e2e675 DG |
158 | /* |
159 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
160 | * | |
161 | * On success return 0 else return ret_code negative value. | |
162 | */ | |
163 | int relayd_add_stream(struct lttcomm_sock *sock, const char *channel_name, | |
164 | const char *pathname, uint64_t *stream_id) | |
165 | { | |
166 | int ret; | |
167 | struct lttcomm_relayd_add_stream msg; | |
168 | struct lttcomm_relayd_status_stream reply; | |
169 | ||
170 | /* Code flow error. Safety net. */ | |
171 | assert(sock); | |
172 | assert(channel_name); | |
173 | assert(pathname); | |
174 | ||
175 | DBG("Relayd adding stream for channel name %s", channel_name); | |
176 | ||
177 | strncpy(msg.channel_name, channel_name, sizeof(msg.channel_name)); | |
178 | strncpy(msg.pathname, pathname, sizeof(msg.pathname)); | |
179 | ||
180 | /* Send command */ | |
181 | ret = send_command(sock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0); | |
182 | if (ret < 0) { | |
183 | goto error; | |
184 | } | |
185 | ||
633d0084 | 186 | /* Waiting for reply */ |
00e2e675 DG |
187 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
188 | if (ret < 0) { | |
189 | goto error; | |
190 | } | |
191 | ||
192 | /* Back to host bytes order. */ | |
193 | reply.handle = be64toh(reply.handle); | |
194 | reply.ret_code = be32toh(reply.ret_code); | |
195 | ||
196 | /* Return session id or negative ret code. */ | |
f73fabfd | 197 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
198 | ret = -1; |
199 | ERR("Relayd add stream replied error %d", reply.ret_code); | |
00e2e675 DG |
200 | } else { |
201 | /* Success */ | |
202 | ret = 0; | |
203 | *stream_id = reply.handle; | |
204 | } | |
205 | ||
77c7c900 MD |
206 | DBG("Relayd stream added successfully with handle %" PRIu64, |
207 | reply.handle); | |
00e2e675 DG |
208 | |
209 | error: | |
210 | return ret; | |
211 | } | |
212 | ||
213 | /* | |
214 | * Check version numbers on the relayd. | |
d4519fa3 JD |
215 | * If major versions are compatible, we assign minor_to_use to the |
216 | * minor version of the procotol we are going to use for this session. | |
00e2e675 DG |
217 | * |
218 | * Return 0 if compatible else negative value. | |
219 | */ | |
220 | int relayd_version_check(struct lttcomm_sock *sock, uint32_t major, | |
d4519fa3 | 221 | uint32_t minor, uint32_t *minor_to_use) |
00e2e675 DG |
222 | { |
223 | int ret; | |
092b6259 | 224 | struct lttcomm_relayd_version msg; |
00e2e675 DG |
225 | |
226 | /* Code flow error. Safety net. */ | |
227 | assert(sock); | |
228 | ||
229 | DBG("Relayd version check for major.minor %u.%u", major, minor); | |
230 | ||
092b6259 DG |
231 | /* Prepare network byte order before transmission. */ |
232 | msg.major = htobe32(major); | |
233 | msg.minor = htobe32(minor); | |
234 | ||
00e2e675 | 235 | /* Send command */ |
092b6259 | 236 | ret = send_command(sock, RELAYD_VERSION, (void *) &msg, sizeof(msg), 0); |
00e2e675 DG |
237 | if (ret < 0) { |
238 | goto error; | |
239 | } | |
240 | ||
20275fe8 | 241 | /* Receive response */ |
092b6259 | 242 | ret = recv_reply(sock, (void *) &msg, sizeof(msg)); |
00e2e675 DG |
243 | if (ret < 0) { |
244 | goto error; | |
245 | } | |
246 | ||
247 | /* Set back to host bytes order */ | |
092b6259 DG |
248 | msg.major = be32toh(msg.major); |
249 | msg.minor = be32toh(msg.minor); | |
250 | ||
251 | /* | |
252 | * Only validate the major version. If the other side is higher, | |
253 | * communication is not possible. Only major version equal can talk to each | |
254 | * other. If the minor version differs, the lowest version is used by both | |
255 | * sides. | |
092b6259 | 256 | */ |
d4519fa3 JD |
257 | if (msg.major != major) { |
258 | /* Not compatible */ | |
259 | ret = -1; | |
260 | DBG2("Relayd version is NOT compatible. Relayd version %u != %u (us)", | |
261 | msg.major, major); | |
092b6259 | 262 | goto error; |
00e2e675 DG |
263 | } |
264 | ||
092b6259 DG |
265 | /* |
266 | * After 2.1.0 release, for the 2.2 release, at this point will have to | |
267 | * check the minor version in order for the session daemon to know which | |
268 | * structure to use to communicate with the relayd. If the relayd's minor | |
269 | * version is higher, it will adapt to our version so we can continue to | |
270 | * use the latest relayd communication data structure. | |
271 | */ | |
d4519fa3 JD |
272 | if (minor <= msg.minor) { |
273 | *minor_to_use = minor; | |
274 | } else { | |
275 | *minor_to_use = msg.minor; | |
276 | } | |
092b6259 | 277 | |
d4519fa3 JD |
278 | /* Version number compatible */ |
279 | DBG2("Relayd version is compatible, using protocol version %u.%u", | |
280 | major, *minor_to_use); | |
281 | ret = 0; | |
00e2e675 DG |
282 | |
283 | error: | |
284 | return ret; | |
285 | } | |
286 | ||
00e2e675 DG |
287 | /* |
288 | * Add stream on the relayd and assign stream handle to the stream_id argument. | |
289 | * | |
290 | * On success return 0 else return ret_code negative value. | |
291 | */ | |
292 | int relayd_send_metadata(struct lttcomm_sock *sock, size_t len) | |
293 | { | |
294 | int ret; | |
295 | ||
296 | /* Code flow error. Safety net. */ | |
297 | assert(sock); | |
298 | ||
77c7c900 | 299 | DBG("Relayd sending metadata of size %zu", len); |
00e2e675 DG |
300 | |
301 | /* Send command */ | |
302 | ret = send_command(sock, RELAYD_SEND_METADATA, NULL, len, 0); | |
303 | if (ret < 0) { | |
304 | goto error; | |
305 | } | |
306 | ||
307 | DBG2("Relayd metadata added successfully"); | |
308 | ||
309 | /* | |
310 | * After that call, the metadata data MUST be sent to the relayd so the | |
311 | * receive size on the other end matches the len of the metadata packet | |
633d0084 | 312 | * header. This is why we don't wait for a reply here. |
00e2e675 DG |
313 | */ |
314 | ||
315 | error: | |
316 | return ret; | |
317 | } | |
318 | ||
319 | /* | |
320 | * Connect to relay daemon with an allocated lttcomm_sock. | |
321 | */ | |
322 | int relayd_connect(struct lttcomm_sock *sock) | |
323 | { | |
324 | /* Code flow error. Safety net. */ | |
325 | assert(sock); | |
326 | ||
327 | DBG3("Relayd connect ..."); | |
328 | ||
329 | return sock->ops->connect(sock); | |
330 | } | |
331 | ||
332 | /* | |
333 | * Close relayd socket with an allocated lttcomm_sock. | |
ffe60014 DG |
334 | * |
335 | * If no socket operations are found, simply return 0 meaning that everything | |
336 | * is fine. Without operations, the socket can not possibly be opened or used. | |
337 | * This is possible if the socket was allocated but not created. However, the | |
338 | * caller could simply use it to store a valid file descriptor for instance | |
339 | * passed over a Unix socket and call this to cleanup but still without a valid | |
340 | * ops pointer. | |
341 | * | |
342 | * Return the close returned value. On error, a negative value is usually | |
343 | * returned back from close(2). | |
00e2e675 DG |
344 | */ |
345 | int relayd_close(struct lttcomm_sock *sock) | |
346 | { | |
ffe60014 DG |
347 | int ret; |
348 | ||
00e2e675 DG |
349 | /* Code flow error. Safety net. */ |
350 | assert(sock); | |
351 | ||
ffe60014 DG |
352 | /* An invalid fd is fine, return success. */ |
353 | if (sock->fd < 0) { | |
354 | ret = 0; | |
355 | goto end; | |
356 | } | |
357 | ||
00e2e675 DG |
358 | DBG3("Relayd closing socket %d", sock->fd); |
359 | ||
ffe60014 DG |
360 | if (sock->ops) { |
361 | ret = sock->ops->close(sock); | |
362 | } else { | |
363 | /* Default call if no specific ops found. */ | |
364 | ret = close(sock->fd); | |
365 | if (ret < 0) { | |
366 | PERROR("relayd_close default close"); | |
367 | } | |
368 | } | |
369 | ||
370 | end: | |
371 | return ret; | |
00e2e675 DG |
372 | } |
373 | ||
374 | /* | |
375 | * Send data header structure to the relayd. | |
376 | */ | |
377 | int relayd_send_data_hdr(struct lttcomm_sock *sock, | |
378 | struct lttcomm_relayd_data_hdr *hdr, size_t size) | |
379 | { | |
380 | int ret; | |
381 | ||
382 | /* Code flow error. Safety net. */ | |
383 | assert(sock); | |
384 | assert(hdr); | |
385 | ||
633d0084 | 386 | DBG3("Relayd sending data header of size %ld", size); |
00e2e675 DG |
387 | |
388 | /* Again, safety net */ | |
389 | if (size == 0) { | |
390 | size = sizeof(struct lttcomm_relayd_data_hdr); | |
391 | } | |
392 | ||
393 | /* Only send data header. */ | |
394 | ret = sock->ops->sendmsg(sock, hdr, size, 0); | |
395 | if (ret < 0) { | |
8994307f | 396 | ret = -errno; |
00e2e675 DG |
397 | goto error; |
398 | } | |
399 | ||
400 | /* | |
401 | * The data MUST be sent right after that command for the receive on the | |
402 | * other end to match the size in the header. | |
403 | */ | |
404 | ||
405 | error: | |
406 | return ret; | |
407 | } | |
173af62f DG |
408 | |
409 | /* | |
410 | * Send close stream command to the relayd. | |
411 | */ | |
412 | int relayd_send_close_stream(struct lttcomm_sock *sock, uint64_t stream_id, | |
413 | uint64_t last_net_seq_num) | |
414 | { | |
415 | int ret; | |
416 | struct lttcomm_relayd_close_stream msg; | |
417 | struct lttcomm_relayd_generic_reply reply; | |
418 | ||
419 | /* Code flow error. Safety net. */ | |
420 | assert(sock); | |
421 | ||
77c7c900 | 422 | DBG("Relayd closing stream id %" PRIu64, stream_id); |
173af62f DG |
423 | |
424 | msg.stream_id = htobe64(stream_id); | |
425 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
426 | ||
427 | /* Send command */ | |
428 | ret = send_command(sock, RELAYD_CLOSE_STREAM, (void *) &msg, sizeof(msg), 0); | |
429 | if (ret < 0) { | |
430 | goto error; | |
431 | } | |
432 | ||
20275fe8 | 433 | /* Receive response */ |
173af62f DG |
434 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
435 | if (ret < 0) { | |
436 | goto error; | |
437 | } | |
438 | ||
439 | reply.ret_code = be32toh(reply.ret_code); | |
440 | ||
441 | /* Return session id or negative ret code. */ | |
f73fabfd | 442 | if (reply.ret_code != LTTNG_OK) { |
bb63afd9 DG |
443 | ret = -1; |
444 | ERR("Relayd close stream replied error %d", reply.ret_code); | |
173af62f DG |
445 | } else { |
446 | /* Success */ | |
447 | ret = 0; | |
448 | } | |
449 | ||
77c7c900 | 450 | DBG("Relayd close stream id %" PRIu64 " successfully", stream_id); |
173af62f DG |
451 | |
452 | error: | |
453 | return ret; | |
454 | } | |
c8f59ee5 DG |
455 | |
456 | /* | |
457 | * Check for data availability for a given stream id. | |
458 | * | |
6d805429 | 459 | * Return 0 if NOT pending, 1 if so and a negative value on error. |
c8f59ee5 | 460 | */ |
6d805429 | 461 | int relayd_data_pending(struct lttcomm_sock *sock, uint64_t stream_id, |
c8f59ee5 DG |
462 | uint64_t last_net_seq_num) |
463 | { | |
464 | int ret; | |
6d805429 | 465 | struct lttcomm_relayd_data_pending msg; |
c8f59ee5 DG |
466 | struct lttcomm_relayd_generic_reply reply; |
467 | ||
468 | /* Code flow error. Safety net. */ | |
469 | assert(sock); | |
470 | ||
6d805429 | 471 | DBG("Relayd data pending for stream id %" PRIu64, stream_id); |
c8f59ee5 DG |
472 | |
473 | msg.stream_id = htobe64(stream_id); | |
474 | msg.last_net_seq_num = htobe64(last_net_seq_num); | |
475 | ||
476 | /* Send command */ | |
6d805429 | 477 | ret = send_command(sock, RELAYD_DATA_PENDING, (void *) &msg, |
c8f59ee5 DG |
478 | sizeof(msg), 0); |
479 | if (ret < 0) { | |
480 | goto error; | |
481 | } | |
482 | ||
20275fe8 | 483 | /* Receive response */ |
c8f59ee5 DG |
484 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
485 | if (ret < 0) { | |
486 | goto error; | |
487 | } | |
488 | ||
489 | reply.ret_code = be32toh(reply.ret_code); | |
490 | ||
491 | /* Return session id or negative ret code. */ | |
492 | if (reply.ret_code >= LTTNG_OK) { | |
bb63afd9 | 493 | ERR("Relayd data pending replied error %d", reply.ret_code); |
c8f59ee5 DG |
494 | } |
495 | ||
496 | /* At this point, the ret code is either 1 or 0 */ | |
497 | ret = reply.ret_code; | |
498 | ||
6d805429 | 499 | DBG("Relayd data is %s pending for stream id %" PRIu64, |
9dd26bb9 | 500 | ret == 1 ? "" : "NOT", stream_id); |
c8f59ee5 DG |
501 | |
502 | error: | |
503 | return ret; | |
504 | } | |
505 | ||
506 | /* | |
507 | * Check on the relayd side for a quiescent state on the control socket. | |
508 | */ | |
ad7051c0 DG |
509 | int relayd_quiescent_control(struct lttcomm_sock *sock, |
510 | uint64_t metadata_stream_id) | |
c8f59ee5 DG |
511 | { |
512 | int ret; | |
ad7051c0 | 513 | struct lttcomm_relayd_quiescent_control msg; |
c8f59ee5 DG |
514 | struct lttcomm_relayd_generic_reply reply; |
515 | ||
516 | /* Code flow error. Safety net. */ | |
517 | assert(sock); | |
518 | ||
519 | DBG("Relayd checking quiescent control state"); | |
520 | ||
ad7051c0 DG |
521 | msg.stream_id = htobe64(metadata_stream_id); |
522 | ||
c8f59ee5 | 523 | /* Send command */ |
ad7051c0 | 524 | ret = send_command(sock, RELAYD_QUIESCENT_CONTROL, &msg, sizeof(msg), 0); |
c8f59ee5 DG |
525 | if (ret < 0) { |
526 | goto error; | |
527 | } | |
528 | ||
20275fe8 | 529 | /* Receive response */ |
c8f59ee5 DG |
530 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
531 | if (ret < 0) { | |
532 | goto error; | |
533 | } | |
534 | ||
535 | reply.ret_code = be32toh(reply.ret_code); | |
536 | ||
537 | /* Return session id or negative ret code. */ | |
538 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
539 | ret = -1; |
540 | ERR("Relayd quiescent control replied error %d", reply.ret_code); | |
c8f59ee5 DG |
541 | goto error; |
542 | } | |
543 | ||
544 | /* Control socket is quiescent */ | |
6d805429 | 545 | return 0; |
c8f59ee5 DG |
546 | |
547 | error: | |
548 | return ret; | |
549 | } | |
f7079f67 DG |
550 | |
551 | /* | |
552 | * Begin a data pending command for a specific session id. | |
553 | */ | |
554 | int relayd_begin_data_pending(struct lttcomm_sock *sock, uint64_t id) | |
555 | { | |
556 | int ret; | |
557 | struct lttcomm_relayd_begin_data_pending msg; | |
558 | struct lttcomm_relayd_generic_reply reply; | |
559 | ||
560 | /* Code flow error. Safety net. */ | |
561 | assert(sock); | |
562 | ||
563 | DBG("Relayd begin data pending"); | |
564 | ||
565 | msg.session_id = htobe64(id); | |
566 | ||
567 | /* Send command */ | |
568 | ret = send_command(sock, RELAYD_BEGIN_DATA_PENDING, &msg, sizeof(msg), 0); | |
569 | if (ret < 0) { | |
570 | goto error; | |
571 | } | |
572 | ||
20275fe8 | 573 | /* Receive response */ |
f7079f67 DG |
574 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
575 | if (ret < 0) { | |
576 | goto error; | |
577 | } | |
578 | ||
579 | reply.ret_code = be32toh(reply.ret_code); | |
580 | ||
581 | /* Return session id or negative ret code. */ | |
582 | if (reply.ret_code != LTTNG_OK) { | |
bb63afd9 DG |
583 | ret = -1; |
584 | ERR("Relayd begin data pending replied error %d", reply.ret_code); | |
f7079f67 DG |
585 | goto error; |
586 | } | |
587 | ||
588 | return 0; | |
589 | ||
590 | error: | |
591 | return ret; | |
592 | } | |
593 | ||
594 | /* | |
595 | * End a data pending command for a specific session id. | |
596 | * | |
597 | * Return 0 on success and set is_data_inflight to 0 if no data is being | |
598 | * streamed or 1 if it is the case. | |
599 | */ | |
600 | int relayd_end_data_pending(struct lttcomm_sock *sock, uint64_t id, | |
601 | unsigned int *is_data_inflight) | |
602 | { | |
603 | int ret; | |
604 | struct lttcomm_relayd_end_data_pending msg; | |
605 | struct lttcomm_relayd_generic_reply reply; | |
606 | ||
607 | /* Code flow error. Safety net. */ | |
608 | assert(sock); | |
609 | ||
610 | DBG("Relayd end data pending"); | |
611 | ||
612 | msg.session_id = htobe64(id); | |
613 | ||
614 | /* Send command */ | |
615 | ret = send_command(sock, RELAYD_END_DATA_PENDING, &msg, sizeof(msg), 0); | |
616 | if (ret < 0) { | |
617 | goto error; | |
618 | } | |
619 | ||
20275fe8 | 620 | /* Receive response */ |
f7079f67 DG |
621 | ret = recv_reply(sock, (void *) &reply, sizeof(reply)); |
622 | if (ret < 0) { | |
623 | goto error; | |
624 | } | |
625 | ||
626 | reply.ret_code = be32toh(reply.ret_code); | |
627 | if (reply.ret_code < 0) { | |
628 | ret = reply.ret_code; | |
629 | goto error; | |
630 | } | |
631 | ||
632 | *is_data_inflight = reply.ret_code; | |
633 | ||
634 | DBG("Relayd end data pending is data inflight: %d", reply.ret_code); | |
635 | ||
636 | return 0; | |
637 | ||
638 | error: | |
639 | return ret; | |
640 | } |