Commit | Line | Data |
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c39c72ee PMF |
1 | /* Copyright (C) 2009 Pierre-Marc Fournier |
2 | * | |
3 | * This library is free software; you can redistribute it and/or | |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
7 | * | |
8 | * This library is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
11 | * Lesser General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU Lesser General Public | |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
17 | ||
872037bb | 18 | #define _GNU_SOURCE |
68c1021b PMF |
19 | #include <stdio.h> |
20 | #include <stdint.h> | |
21 | #include <signal.h> | |
22 | #include <sys/types.h> | |
23 | #include <sys/socket.h> | |
24 | #include <sys/un.h> | |
98963de4 | 25 | #include <sched.h> |
a584bc4e | 26 | #include <fcntl.h> |
3a7b90de | 27 | #include <poll.h> |
ef290fca | 28 | #include <regex.h> |
fbd8191b | 29 | |
b7ea1a1c | 30 | #include <urcu-bp.h> |
26cc7017 | 31 | |
93d0f2ea | 32 | #include <ust/marker.h> |
c93858f1 | 33 | #include "tracer.h" |
6af64c43 | 34 | #include "usterr.h" |
d0b5f2b9 | 35 | #include "ustcomm.h" |
b5b073e2 | 36 | #include "buffers.h" /* FIXME: remove */ |
9160b4e4 | 37 | #include "marker-control.h" |
fbd8191b | 38 | |
b02e31e5 | 39 | //#define USE_CLONE |
3847c3ba | 40 | |
68c1021b PMF |
41 | #define USTSIGNAL SIGIO |
42 | ||
98963de4 PMF |
43 | #define MAX_MSG_SIZE (100) |
44 | #define MSG_NOTIF 1 | |
45 | #define MSG_REGISTER_NOTIF 2 | |
46 | ||
a584bc4e PMF |
47 | char consumer_stack[10000]; |
48 | ||
ed1317e7 PMF |
49 | /* This should only be accessed by the constructor, before the creation |
50 | * of the listener, and then only by the listener. | |
51 | */ | |
52 | s64 pidunique = -1LL; | |
53 | ||
3a7b90de PMF |
54 | struct list_head blocked_consumers = LIST_HEAD_INIT(blocked_consumers); |
55 | ||
d0b5f2b9 PMF |
56 | static struct ustcomm_app ustcomm_app; |
57 | ||
68c1021b PMF |
58 | struct tracecmd { /* no padding */ |
59 | uint32_t size; | |
60 | uint16_t command; | |
61 | }; | |
62 | ||
f293009f PMF |
63 | /* volatile because shared between the listener and the main thread */ |
64 | volatile sig_atomic_t buffers_to_export = 0; | |
65 | ||
98963de4 PMF |
66 | struct trctl_msg { |
67 | /* size: the size of all the fields except size itself */ | |
68 | uint32_t size; | |
69 | uint16_t type; | |
70 | /* Only the necessary part of the payload is transferred. It | |
71 | * may even be none of it. | |
72 | */ | |
73 | char payload[94]; | |
74 | }; | |
68c1021b | 75 | |
a584bc4e PMF |
76 | struct consumer_channel { |
77 | int fd; | |
78 | struct ltt_channel_struct *chan; | |
79 | }; | |
80 | ||
3a7b90de PMF |
81 | struct blocked_consumer { |
82 | int fd_consumer; | |
83 | int fd_producer; | |
84 | int tmp_poll_idx; | |
85 | ||
86 | /* args to ustcomm_send_reply */ | |
87 | struct ustcomm_server server; | |
88 | struct ustcomm_source src; | |
89 | ||
b5b073e2 PMF |
90 | /* args to ust_buffers_do_get_subbuf */ |
91 | struct ust_buffer *buf; | |
3a7b90de PMF |
92 | |
93 | struct list_head list; | |
94 | }; | |
95 | ||
ed1317e7 PMF |
96 | static long long make_pidunique(void) |
97 | { | |
98 | s64 retval; | |
99 | struct timeval tv; | |
100 | ||
101 | gettimeofday(&tv, NULL); | |
102 | ||
103 | retval = tv.tv_sec; | |
104 | retval <<= 32; | |
105 | retval |= tv.tv_usec; | |
106 | ||
107 | return retval; | |
108 | } | |
109 | ||
52c51a47 | 110 | static void print_markers(FILE *fp) |
fbd8191b PMF |
111 | { |
112 | struct marker_iter iter; | |
113 | ||
d0b5f2b9 | 114 | lock_markers(); |
fbd8191b PMF |
115 | marker_iter_reset(&iter); |
116 | marker_iter_start(&iter); | |
117 | ||
118 | while(iter.marker) { | |
3ea1e2fc | 119 | fprintf(fp, "marker: %s/%s %d \"%s\" %p\n", iter.marker->channel, iter.marker->name, (int)imv_read(iter.marker->state), iter.marker->format, iter.marker->location); |
fbd8191b PMF |
120 | marker_iter_next(&iter); |
121 | } | |
d0b5f2b9 | 122 | unlock_markers(); |
fbd8191b PMF |
123 | } |
124 | ||
4440ebcb | 125 | static int init_socket(void); |
68c1021b | 126 | |
26cc7017 PMF |
127 | /* This needs to be called whenever a new thread is created. It notifies |
128 | * liburcu of the new thread. | |
129 | */ | |
130 | ||
131 | void ust_register_thread(void) | |
68c1021b | 132 | { |
26cc7017 | 133 | rcu_register_thread(); |
68c1021b PMF |
134 | } |
135 | ||
98963de4 PMF |
136 | int fd_notif = -1; |
137 | void notif_cb(void) | |
138 | { | |
139 | int result; | |
140 | struct trctl_msg msg; | |
141 | ||
142 | /* FIXME: fd_notif should probably be protected by a spinlock */ | |
143 | ||
144 | if(fd_notif == -1) | |
145 | return; | |
146 | ||
147 | msg.type = MSG_NOTIF; | |
148 | msg.size = sizeof(msg.type); | |
149 | ||
150 | /* FIXME: don't block here */ | |
151 | result = write(fd_notif, &msg, msg.size+sizeof(msg.size)); | |
152 | if(result == -1) { | |
153 | PERROR("write"); | |
154 | return; | |
155 | } | |
156 | } | |
157 | ||
ad45e833 PMF |
158 | /* Ask the daemon to collect a trace called trace_name and being |
159 | * produced by this pid. | |
160 | * | |
161 | * The trace must be at least allocated. (It can also be started.) | |
162 | * This is because _ltt_trace_find is used. | |
163 | */ | |
164 | ||
165 | static void inform_consumer_daemon(const char *trace_name) | |
d0b5f2b9 | 166 | { |
ad45e833 PMF |
167 | int i; |
168 | struct ltt_trace_struct *trace; | |
169 | pid_t pid = getpid(); | |
170 | int result; | |
171 | ||
172 | ltt_lock_traces(); | |
173 | ||
174 | trace = _ltt_trace_find(trace_name); | |
175 | if(trace == NULL) { | |
176 | WARN("inform_consumer_daemon: could not find trace \"%s\"; it is probably already destroyed", trace_name); | |
177 | goto finish; | |
178 | } | |
179 | ||
180 | for(i=0; i < trace->nr_channels; i++) { | |
181 | result = ustcomm_request_consumer(pid, trace->channels[i].channel_name); | |
182 | if(result == -1) { | |
183 | WARN("Failed to request collection for channel %s. Is the daemon available?", trace->channels[i].channel_name); | |
184 | /* continue even if fail */ | |
185 | } | |
f293009f | 186 | buffers_to_export++; |
ad45e833 PMF |
187 | } |
188 | ||
189 | finish: | |
190 | ltt_unlock_traces(); | |
d0b5f2b9 | 191 | } |
fbd8191b | 192 | |
3a7b90de PMF |
193 | void process_blocked_consumers(void) |
194 | { | |
195 | int n_fds = 0; | |
196 | struct pollfd *fds; | |
197 | struct blocked_consumer *bc; | |
198 | int idx = 0; | |
199 | char inbuf; | |
200 | int result; | |
201 | ||
202 | list_for_each_entry(bc, &blocked_consumers, list) { | |
203 | n_fds++; | |
204 | } | |
205 | ||
206 | fds = (struct pollfd *) malloc(n_fds * sizeof(struct pollfd)); | |
207 | if(fds == NULL) { | |
208 | ERR("malloc returned NULL"); | |
209 | return; | |
210 | } | |
211 | ||
212 | list_for_each_entry(bc, &blocked_consumers, list) { | |
213 | fds[idx].fd = bc->fd_producer; | |
214 | fds[idx].events = POLLIN; | |
215 | bc->tmp_poll_idx = idx; | |
216 | idx++; | |
217 | } | |
218 | ||
69ba0156 PMF |
219 | while((result = poll(fds, n_fds, 0)) == -1 && errno == EINTR) |
220 | /* nothing */; | |
3a7b90de PMF |
221 | if(result == -1) { |
222 | PERROR("poll"); | |
872037bb | 223 | return; |
3a7b90de PMF |
224 | } |
225 | ||
226 | list_for_each_entry(bc, &blocked_consumers, list) { | |
227 | if(fds[bc->tmp_poll_idx].revents) { | |
228 | long consumed_old = 0; | |
229 | char *reply; | |
230 | ||
231 | result = read(bc->fd_producer, &inbuf, 1); | |
232 | if(result == -1) { | |
233 | PERROR("read"); | |
234 | continue; | |
235 | } | |
236 | if(result == 0) { | |
237 | DBG("PRODUCER END"); | |
238 | ||
239 | close(bc->fd_producer); | |
240 | ||
769d0157 | 241 | list_del(&bc->list); |
3a7b90de PMF |
242 | |
243 | result = ustcomm_send_reply(&bc->server, "END", &bc->src); | |
244 | if(result < 0) { | |
245 | ERR("ustcomm_send_reply failed"); | |
246 | continue; | |
247 | } | |
248 | ||
249 | continue; | |
250 | } | |
251 | ||
b5b073e2 | 252 | result = ust_buffers_do_get_subbuf(bc->buf, &consumed_old); |
3a7b90de PMF |
253 | if(result == -EAGAIN) { |
254 | WARN("missed buffer?"); | |
255 | continue; | |
256 | } | |
257 | else if(result < 0) { | |
b5b073e2 | 258 | DBG("ust_buffers_do_get_subbuf: error: %s", strerror(-result)); |
3a7b90de PMF |
259 | } |
260 | asprintf(&reply, "%s %ld", "OK", consumed_old); | |
261 | result = ustcomm_send_reply(&bc->server, reply, &bc->src); | |
262 | if(result < 0) { | |
263 | ERR("ustcomm_send_reply failed"); | |
264 | free(reply); | |
265 | continue; | |
266 | } | |
267 | free(reply); | |
268 | ||
769d0157 | 269 | list_del(&bc->list); |
3a7b90de PMF |
270 | } |
271 | } | |
272 | ||
273 | } | |
274 | ||
872037bb | 275 | void *listener_main(void *p) |
98963de4 PMF |
276 | { |
277 | int result; | |
278 | ||
26cc7017 PMF |
279 | ust_register_thread(); |
280 | ||
b0540e11 PMF |
281 | DBG("LISTENER"); |
282 | ||
98963de4 | 283 | for(;;) { |
aafb1650 PMF |
284 | char trace_name[] = "auto"; |
285 | char trace_type[] = "ustrelay"; | |
d0b5f2b9 PMF |
286 | char *recvbuf; |
287 | int len; | |
b02e31e5 | 288 | struct ustcomm_source src; |
98963de4 | 289 | |
3a7b90de PMF |
290 | process_blocked_consumers(); |
291 | ||
292 | result = ustcomm_app_recv_message(&ustcomm_app, &recvbuf, &src, 5); | |
293 | if(result < 0) { | |
d0b5f2b9 PMF |
294 | WARN("error in ustcomm_app_recv_message"); |
295 | continue; | |
296 | } | |
3a7b90de PMF |
297 | else if(result == 0) { |
298 | /* no message */ | |
299 | continue; | |
300 | } | |
98963de4 | 301 | |
08230db7 | 302 | DBG("received a message! it's: %s", recvbuf); |
d0b5f2b9 | 303 | len = strlen(recvbuf); |
98963de4 | 304 | |
d0b5f2b9 | 305 | if(!strcmp(recvbuf, "print_markers")) { |
52c51a47 PMF |
306 | print_markers(stderr); |
307 | } | |
308 | else if(!strcmp(recvbuf, "list_markers")) { | |
309 | char *ptr; | |
310 | size_t size; | |
311 | FILE *fp; | |
312 | ||
313 | fp = open_memstream(&ptr, &size); | |
314 | print_markers(fp); | |
315 | fclose(fp); | |
316 | ||
317 | result = ustcomm_send_reply(&ustcomm_app.server, ptr, &src); | |
318 | ||
319 | free(ptr); | |
320 | } | |
321 | else if(!strcmp(recvbuf, "start")) { | |
322 | /* start is an operation that setups the trace, allocates it and starts it */ | |
323 | result = ltt_trace_setup(trace_name); | |
324 | if(result < 0) { | |
325 | ERR("ltt_trace_setup failed"); | |
872037bb | 326 | return (void *)1; |
52c51a47 PMF |
327 | } |
328 | ||
329 | result = ltt_trace_set_type(trace_name, trace_type); | |
330 | if(result < 0) { | |
331 | ERR("ltt_trace_set_type failed"); | |
872037bb | 332 | return (void *)1; |
52c51a47 PMF |
333 | } |
334 | ||
335 | result = ltt_trace_alloc(trace_name); | |
336 | if(result < 0) { | |
337 | ERR("ltt_trace_alloc failed"); | |
872037bb | 338 | return (void *)1; |
52c51a47 PMF |
339 | } |
340 | ||
ad45e833 | 341 | inform_consumer_daemon(trace_name); |
52c51a47 PMF |
342 | |
343 | result = ltt_trace_start(trace_name); | |
344 | if(result < 0) { | |
345 | ERR("ltt_trace_start failed"); | |
346 | continue; | |
347 | } | |
d0b5f2b9 PMF |
348 | } |
349 | else if(!strcmp(recvbuf, "trace_setup")) { | |
350 | DBG("trace setup"); | |
fbd8191b | 351 | |
d0b5f2b9 PMF |
352 | result = ltt_trace_setup(trace_name); |
353 | if(result < 0) { | |
354 | ERR("ltt_trace_setup failed"); | |
872037bb | 355 | return (void *)1; |
fbd8191b | 356 | } |
d0b5f2b9 PMF |
357 | |
358 | result = ltt_trace_set_type(trace_name, trace_type); | |
359 | if(result < 0) { | |
360 | ERR("ltt_trace_set_type failed"); | |
872037bb | 361 | return (void *)1; |
fbd8191b | 362 | } |
d0b5f2b9 PMF |
363 | } |
364 | else if(!strcmp(recvbuf, "trace_alloc")) { | |
365 | DBG("trace alloc"); | |
366 | ||
367 | result = ltt_trace_alloc(trace_name); | |
368 | if(result < 0) { | |
369 | ERR("ltt_trace_alloc failed"); | |
872037bb | 370 | return (void *)1; |
fbd8191b | 371 | } |
d0b5f2b9 | 372 | } |
62ec620f PMF |
373 | else if(!strcmp(recvbuf, "trace_create")) { |
374 | DBG("trace create"); | |
375 | ||
376 | result = ltt_trace_setup(trace_name); | |
377 | if(result < 0) { | |
378 | ERR("ltt_trace_setup failed"); | |
379 | return (void *)1; | |
380 | } | |
381 | ||
382 | result = ltt_trace_set_type(trace_name, trace_type); | |
383 | if(result < 0) { | |
384 | ERR("ltt_trace_set_type failed"); | |
385 | return (void *)1; | |
386 | } | |
387 | ||
388 | result = ltt_trace_alloc(trace_name); | |
389 | if(result < 0) { | |
390 | ERR("ltt_trace_alloc failed"); | |
391 | return (void *)1; | |
392 | } | |
393 | ||
394 | inform_consumer_daemon(trace_name); | |
395 | } | |
d0b5f2b9 PMF |
396 | else if(!strcmp(recvbuf, "trace_start")) { |
397 | DBG("trace start"); | |
398 | ||
399 | result = ltt_trace_start(trace_name); | |
400 | if(result < 0) { | |
401 | ERR("ltt_trace_start failed"); | |
402 | continue; | |
fbd8191b | 403 | } |
d0b5f2b9 PMF |
404 | } |
405 | else if(!strcmp(recvbuf, "trace_stop")) { | |
406 | DBG("trace stop"); | |
407 | ||
408 | result = ltt_trace_stop(trace_name); | |
409 | if(result < 0) { | |
410 | ERR("ltt_trace_stop failed"); | |
872037bb | 411 | return (void *)1; |
aafb1650 | 412 | } |
d0b5f2b9 PMF |
413 | } |
414 | else if(!strcmp(recvbuf, "trace_destroy")) { | |
aafb1650 | 415 | |
d0b5f2b9 | 416 | DBG("trace destroy"); |
aafb1650 | 417 | |
d0b5f2b9 PMF |
418 | result = ltt_trace_destroy(trace_name); |
419 | if(result < 0) { | |
420 | ERR("ltt_trace_destroy failed"); | |
872037bb | 421 | return (void *)1; |
fbd8191b | 422 | } |
98963de4 | 423 | } |
b02e31e5 | 424 | else if(nth_token_is(recvbuf, "get_shmid", 0) == 1) { |
3847c3ba PMF |
425 | struct ltt_trace_struct *trace; |
426 | char trace_name[] = "auto"; | |
427 | int i; | |
811e4b93 | 428 | char *channel_name; |
3847c3ba PMF |
429 | |
430 | DBG("get_shmid"); | |
431 | ||
811e4b93 PMF |
432 | channel_name = nth_token(recvbuf, 1); |
433 | if(channel_name == NULL) { | |
434 | ERR("get_shmid: cannot parse channel"); | |
435 | goto next_cmd; | |
436 | } | |
437 | ||
3847c3ba PMF |
438 | ltt_lock_traces(); |
439 | trace = _ltt_trace_find(trace_name); | |
440 | ltt_unlock_traces(); | |
441 | ||
442 | if(trace == NULL) { | |
63fe14e5 | 443 | ERR("cannot find trace!"); |
872037bb | 444 | return (void *)1; |
3847c3ba PMF |
445 | } |
446 | ||
447 | for(i=0; i<trace->nr_channels; i++) { | |
b5b073e2 PMF |
448 | struct ust_channel *channel = &trace->channels[i]; |
449 | struct ust_buffer *buf = channel->buf; | |
3847c3ba | 450 | |
811e4b93 PMF |
451 | if(!strcmp(trace->channels[i].channel_name, channel_name)) { |
452 | char *reply; | |
453 | ||
b5b073e2 PMF |
454 | DBG("the shmid for the requested channel is %d", buf->shmid); |
455 | DBG("the shmid for its buffer structure is %d", channel->buf_shmid); | |
456 | asprintf(&reply, "%d %d", buf->shmid, channel->buf_shmid); | |
811e4b93 PMF |
457 | |
458 | result = ustcomm_send_reply(&ustcomm_app.server, reply, &src); | |
459 | if(result) { | |
460 | ERR("listener: get_shmid: ustcomm_send_reply failed"); | |
461 | goto next_cmd; | |
462 | } | |
463 | ||
464 | free(reply); | |
465 | ||
466 | break; | |
467 | } | |
468 | } | |
f293009f PMF |
469 | |
470 | buffers_to_export--; | |
811e4b93 PMF |
471 | } |
472 | else if(nth_token_is(recvbuf, "get_n_subbufs", 0) == 1) { | |
473 | struct ltt_trace_struct *trace; | |
474 | char trace_name[] = "auto"; | |
475 | int i; | |
476 | char *channel_name; | |
477 | ||
478 | DBG("get_n_subbufs"); | |
479 | ||
480 | channel_name = nth_token(recvbuf, 1); | |
481 | if(channel_name == NULL) { | |
482 | ERR("get_n_subbufs: cannot parse channel"); | |
483 | goto next_cmd; | |
484 | } | |
485 | ||
486 | ltt_lock_traces(); | |
487 | trace = _ltt_trace_find(trace_name); | |
488 | ltt_unlock_traces(); | |
489 | ||
490 | if(trace == NULL) { | |
63fe14e5 | 491 | ERR("cannot find trace!"); |
872037bb | 492 | return (void *)1; |
811e4b93 PMF |
493 | } |
494 | ||
495 | for(i=0; i<trace->nr_channels; i++) { | |
b5b073e2 | 496 | struct ust_channel *channel = &trace->channels[i]; |
811e4b93 PMF |
497 | |
498 | if(!strcmp(trace->channels[i].channel_name, channel_name)) { | |
499 | char *reply; | |
500 | ||
b5b073e2 PMF |
501 | DBG("the n_subbufs for the requested channel is %d", channel->subbuf_cnt); |
502 | asprintf(&reply, "%d", channel->subbuf_cnt); | |
811e4b93 PMF |
503 | |
504 | result = ustcomm_send_reply(&ustcomm_app.server, reply, &src); | |
505 | if(result) { | |
506 | ERR("listener: get_n_subbufs: ustcomm_send_reply failed"); | |
507 | goto next_cmd; | |
508 | } | |
509 | ||
510 | free(reply); | |
511 | ||
512 | break; | |
513 | } | |
514 | } | |
515 | } | |
516 | else if(nth_token_is(recvbuf, "get_subbuf_size", 0) == 1) { | |
517 | struct ltt_trace_struct *trace; | |
518 | char trace_name[] = "auto"; | |
519 | int i; | |
520 | char *channel_name; | |
521 | ||
522 | DBG("get_subbuf_size"); | |
523 | ||
524 | channel_name = nth_token(recvbuf, 1); | |
525 | if(channel_name == NULL) { | |
526 | ERR("get_subbuf_size: cannot parse channel"); | |
527 | goto next_cmd; | |
528 | } | |
529 | ||
530 | ltt_lock_traces(); | |
531 | trace = _ltt_trace_find(trace_name); | |
532 | ltt_unlock_traces(); | |
533 | ||
534 | if(trace == NULL) { | |
63fe14e5 | 535 | ERR("cannot find trace!"); |
872037bb | 536 | return (void *)1; |
811e4b93 PMF |
537 | } |
538 | ||
539 | for(i=0; i<trace->nr_channels; i++) { | |
b5b073e2 | 540 | struct ust_channel *channel = &trace->channels[i]; |
811e4b93 PMF |
541 | |
542 | if(!strcmp(trace->channels[i].channel_name, channel_name)) { | |
543 | char *reply; | |
544 | ||
b5b073e2 PMF |
545 | DBG("the subbuf_size for the requested channel is %zd", channel->subbuf_size); |
546 | asprintf(&reply, "%zd", channel->subbuf_size); | |
811e4b93 PMF |
547 | |
548 | result = ustcomm_send_reply(&ustcomm_app.server, reply, &src); | |
549 | if(result) { | |
550 | ERR("listener: get_subbuf_size: ustcomm_send_reply failed"); | |
551 | goto next_cmd; | |
552 | } | |
553 | ||
554 | free(reply); | |
3847c3ba | 555 | |
811e4b93 PMF |
556 | break; |
557 | } | |
3847c3ba PMF |
558 | } |
559 | } | |
b02e31e5 PMF |
560 | else if(nth_token_is(recvbuf, "load_probe_lib", 0) == 1) { |
561 | char *libfile; | |
562 | ||
563 | libfile = nth_token(recvbuf, 1); | |
564 | ||
565 | DBG("load_probe_lib loading %s", libfile); | |
566 | } | |
688760ef PMF |
567 | else if(nth_token_is(recvbuf, "get_subbuffer", 0) == 1) { |
568 | struct ltt_trace_struct *trace; | |
569 | char trace_name[] = "auto"; | |
570 | int i; | |
571 | char *channel_name; | |
572 | ||
573 | DBG("get_subbuf"); | |
574 | ||
575 | channel_name = nth_token(recvbuf, 1); | |
576 | if(channel_name == NULL) { | |
577 | ERR("get_subbuf: cannot parse channel"); | |
578 | goto next_cmd; | |
579 | } | |
580 | ||
581 | ltt_lock_traces(); | |
582 | trace = _ltt_trace_find(trace_name); | |
583 | ltt_unlock_traces(); | |
584 | ||
585 | if(trace == NULL) { | |
63fe14e5 | 586 | ERR("cannot find trace!"); |
872037bb | 587 | return (void *)1; |
688760ef PMF |
588 | } |
589 | ||
590 | for(i=0; i<trace->nr_channels; i++) { | |
b5b073e2 | 591 | struct ust_channel *channel = &trace->channels[i]; |
688760ef PMF |
592 | |
593 | if(!strcmp(trace->channels[i].channel_name, channel_name)) { | |
b5b073e2 | 594 | struct ust_buffer *buf = channel->buf; |
3a7b90de | 595 | struct blocked_consumer *bc; |
688760ef | 596 | |
3a7b90de PMF |
597 | bc = (struct blocked_consumer *) malloc(sizeof(struct blocked_consumer)); |
598 | if(bc == NULL) { | |
599 | ERR("malloc returned NULL"); | |
688760ef PMF |
600 | goto next_cmd; |
601 | } | |
3a7b90de | 602 | bc->fd_consumer = src.fd; |
b5b073e2 PMF |
603 | bc->fd_producer = buf->data_ready_fd_read; |
604 | bc->buf = buf; | |
3a7b90de PMF |
605 | bc->src = src; |
606 | bc->server = ustcomm_app.server; | |
688760ef | 607 | |
3a7b90de | 608 | list_add(&bc->list, &blocked_consumers); |
688760ef PMF |
609 | |
610 | break; | |
611 | } | |
612 | } | |
613 | } | |
614 | else if(nth_token_is(recvbuf, "put_subbuffer", 0) == 1) { | |
615 | struct ltt_trace_struct *trace; | |
616 | char trace_name[] = "auto"; | |
617 | int i; | |
618 | char *channel_name; | |
619 | long consumed_old; | |
620 | char *consumed_old_str; | |
621 | char *endptr; | |
622 | ||
623 | DBG("put_subbuf"); | |
624 | ||
625 | channel_name = strdup_malloc(nth_token(recvbuf, 1)); | |
626 | if(channel_name == NULL) { | |
627 | ERR("put_subbuf_size: cannot parse channel"); | |
628 | goto next_cmd; | |
629 | } | |
630 | ||
631 | consumed_old_str = strdup_malloc(nth_token(recvbuf, 2)); | |
632 | if(consumed_old_str == NULL) { | |
633 | ERR("put_subbuf: cannot parse consumed_old"); | |
634 | goto next_cmd; | |
635 | } | |
636 | consumed_old = strtol(consumed_old_str, &endptr, 10); | |
637 | if(*endptr != '\0') { | |
638 | ERR("put_subbuf: invalid value for consumed_old"); | |
639 | goto next_cmd; | |
640 | } | |
641 | ||
642 | ltt_lock_traces(); | |
643 | trace = _ltt_trace_find(trace_name); | |
644 | ltt_unlock_traces(); | |
645 | ||
646 | if(trace == NULL) { | |
63fe14e5 | 647 | ERR("cannot find trace!"); |
872037bb | 648 | return (void *)1; |
688760ef PMF |
649 | } |
650 | ||
651 | for(i=0; i<trace->nr_channels; i++) { | |
b5b073e2 | 652 | struct ust_channel *channel = &trace->channels[i]; |
688760ef PMF |
653 | |
654 | if(!strcmp(trace->channels[i].channel_name, channel_name)) { | |
b5b073e2 | 655 | struct ust_buffer *buf = channel->buf; |
688760ef PMF |
656 | char *reply; |
657 | long consumed_old=0; | |
658 | ||
b5b073e2 | 659 | result = ust_buffers_do_put_subbuf(buf, consumed_old); |
688760ef | 660 | if(result < 0) { |
b5b073e2 | 661 | WARN("ust_buffers_do_put_subbuf: error (subbuf=%s)", channel_name); |
872037bb | 662 | asprintf(&reply, "%s", "ERROR"); |
688760ef PMF |
663 | } |
664 | else { | |
b5b073e2 | 665 | DBG("ust_buffers_do_put_subbuf: success (subbuf=%s)", channel_name); |
872037bb | 666 | asprintf(&reply, "%s", "OK"); |
688760ef | 667 | } |
688760ef PMF |
668 | |
669 | result = ustcomm_send_reply(&ustcomm_app.server, reply, &src); | |
670 | if(result) { | |
671 | ERR("listener: put_subbuf: ustcomm_send_reply failed"); | |
672 | goto next_cmd; | |
673 | } | |
674 | ||
675 | free(reply); | |
676 | ||
677 | break; | |
678 | } | |
679 | } | |
680 | ||
681 | free(channel_name); | |
682 | free(consumed_old_str); | |
683 | } | |
52c51a47 PMF |
684 | else if(nth_token_is(recvbuf, "enable_marker", 0) == 1) { |
685 | char *channel_slash_name = nth_token(recvbuf, 1); | |
686 | char channel_name[256]=""; | |
687 | char marker_name[256]=""; | |
52c51a47 PMF |
688 | |
689 | result = sscanf(channel_slash_name, "%255[^/]/%255s", channel_name, marker_name); | |
690 | ||
691 | if(channel_name == NULL || marker_name == NULL) { | |
692 | WARN("invalid marker name"); | |
693 | goto next_cmd; | |
694 | } | |
695 | printf("%s %s\n", channel_name, marker_name); | |
696 | ||
697 | result = ltt_marker_connect(channel_name, marker_name, "default"); | |
698 | if(result < 0) { | |
699 | WARN("could not enable marker; channel=%s, name=%s", channel_name, marker_name); | |
700 | } | |
701 | } | |
702 | else if(nth_token_is(recvbuf, "disable_marker", 0) == 1) { | |
703 | char *channel_slash_name = nth_token(recvbuf, 1); | |
704 | char *marker_name; | |
705 | char *channel_name; | |
52c51a47 PMF |
706 | |
707 | result = sscanf(channel_slash_name, "%a[^/]/%as", &channel_name, &marker_name); | |
708 | ||
709 | if(marker_name == NULL) { | |
710 | } | |
711 | printf("%s %s\n", channel_name, marker_name); | |
712 | ||
713 | result = ltt_marker_disconnect(channel_name, marker_name, "default"); | |
714 | if(result < 0) { | |
715 | WARN("could not disable marker; channel=%s, name=%s", channel_name, marker_name); | |
716 | } | |
717 | } | |
ed1317e7 PMF |
718 | else if(nth_token_is(recvbuf, "get_pidunique", 0) == 1) { |
719 | char *reply; | |
720 | ||
721 | asprintf(&reply, "%lld", pidunique); | |
722 | ||
723 | result = ustcomm_send_reply(&ustcomm_app.server, reply, &src); | |
724 | if(result) { | |
725 | ERR("listener: get_pidunique: ustcomm_send_reply failed"); | |
726 | goto next_cmd; | |
727 | } | |
728 | ||
729 | free(reply); | |
730 | } | |
3a7b90de PMF |
731 | // else if(nth_token_is(recvbuf, "get_notifications", 0) == 1) { |
732 | // struct ltt_trace_struct *trace; | |
733 | // char trace_name[] = "auto"; | |
734 | // int i; | |
735 | // char *channel_name; | |
736 | // | |
737 | // DBG("get_notifications"); | |
738 | // | |
739 | // channel_name = strdup_malloc(nth_token(recvbuf, 1)); | |
740 | // if(channel_name == NULL) { | |
741 | // ERR("put_subbuf_size: cannot parse channel"); | |
742 | // goto next_cmd; | |
743 | // } | |
744 | // | |
745 | // ltt_lock_traces(); | |
746 | // trace = _ltt_trace_find(trace_name); | |
747 | // ltt_unlock_traces(); | |
748 | // | |
749 | // if(trace == NULL) { | |
63fe14e5 | 750 | // ERR("cannot find trace!"); |
872037bb | 751 | // return (void *)1; |
3a7b90de PMF |
752 | // } |
753 | // | |
754 | // for(i=0; i<trace->nr_channels; i++) { | |
755 | // struct rchan *rchan = trace->channels[i].trans_channel_data; | |
756 | // int fd; | |
757 | // | |
758 | // if(!strcmp(trace->channels[i].channel_name, channel_name)) { | |
759 | // struct rchan_buf *rbuf = rchan->buf; | |
760 | // struct ltt_channel_buf_struct *lttbuf = trace->channels[i].buf; | |
761 | // | |
762 | // result = fd = ustcomm_app_detach_client(&ustcomm_app, &src); | |
763 | // if(result == -1) { | |
764 | // ERR("ustcomm_app_detach_client failed"); | |
765 | // goto next_cmd; | |
766 | // } | |
767 | // | |
768 | // lttbuf->wake_consumer_arg = (void *) fd; | |
769 | // | |
770 | // smp_wmb(); | |
771 | // | |
772 | // lttbuf->call_wake_consumer = 1; | |
773 | // | |
774 | // break; | |
775 | // } | |
776 | // } | |
777 | // | |
778 | // free(channel_name); | |
779 | // } | |
688760ef PMF |
780 | else { |
781 | ERR("unable to parse message: %s", recvbuf); | |
782 | } | |
d0b5f2b9 | 783 | |
811e4b93 | 784 | next_cmd: |
d0b5f2b9 | 785 | free(recvbuf); |
98963de4 PMF |
786 | } |
787 | } | |
788 | ||
7958de40 | 789 | volatile sig_atomic_t have_listener = 0; |
4440ebcb | 790 | |
98963de4 PMF |
791 | void create_listener(void) |
792 | { | |
9160b4e4 | 793 | #ifdef USE_CLONE |
98963de4 | 794 | static char listener_stack[16384]; |
c5fdc888 | 795 | int result; |
4440ebcb PMF |
796 | #else |
797 | pthread_t thread; | |
9160b4e4 | 798 | #endif |
98963de4 | 799 | |
c5fdc888 PMF |
800 | if(have_listener) { |
801 | WARN("not creating listener because we already had one"); | |
4440ebcb | 802 | return; |
c5fdc888 | 803 | } |
4440ebcb | 804 | |
3847c3ba | 805 | #ifdef USE_CLONE |
c5fdc888 | 806 | result = clone((int (*)(void *)) listener_main, listener_stack+sizeof(listener_stack)-1, CLONE_FS | CLONE_FILES | CLONE_VM | CLONE_SIGHAND | CLONE_THREAD, NULL); |
98963de4 PMF |
807 | if(result == -1) { |
808 | perror("clone"); | |
4440ebcb | 809 | return; |
98963de4 | 810 | } |
3847c3ba | 811 | #else |
b0540e11 | 812 | |
3847c3ba PMF |
813 | pthread_create(&thread, NULL, listener_main, NULL); |
814 | #endif | |
4440ebcb PMF |
815 | |
816 | have_listener = 1; | |
98963de4 PMF |
817 | } |
818 | ||
98963de4 | 819 | static int init_socket(void) |
68c1021b | 820 | { |
d0b5f2b9 | 821 | return ustcomm_init_app(getpid(), &ustcomm_app); |
68c1021b PMF |
822 | } |
823 | ||
5de74e51 PMF |
824 | #define AUTOPROBE_DISABLED 0 |
825 | #define AUTOPROBE_ENABLE_ALL 1 | |
826 | #define AUTOPROBE_ENABLE_REGEX 2 | |
827 | static int autoprobe_method = AUTOPROBE_DISABLED; | |
828 | static regex_t autoprobe_regex; | |
ef290fca | 829 | |
20b37a31 | 830 | static void auto_probe_connect(struct marker *m) |
68c1021b PMF |
831 | { |
832 | int result; | |
833 | ||
5de74e51 PMF |
834 | char* concat_name = NULL; |
835 | const char *probe_name = "default"; | |
ef290fca | 836 | |
5de74e51 | 837 | if(autoprobe_method == AUTOPROBE_DISABLED) { |
ef290fca PMF |
838 | return; |
839 | } | |
5de74e51 PMF |
840 | else if(autoprobe_method == AUTOPROBE_ENABLE_REGEX) { |
841 | result = asprintf(&concat_name, "%s/%s", m->channel, m->name); | |
842 | if(result == -1) { | |
843 | ERR("auto_probe_connect: asprintf failed (marker %s/%s)", | |
844 | m->channel, m->name); | |
845 | return; | |
846 | } | |
847 | if (regexec(&autoprobe_regex, concat_name, 0, NULL, 0)) { | |
848 | free(concat_name); | |
849 | return; | |
850 | } | |
851 | free(concat_name); | |
ef290fca PMF |
852 | } |
853 | ||
5de74e51 | 854 | result = ltt_marker_connect(m->channel, m->name, probe_name); |
acbf228b PMF |
855 | if(result && result != -EEXIST) |
856 | ERR("ltt_marker_connect (marker = %s/%s, errno = %d)", m->channel, m->name, -result); | |
20b37a31 | 857 | |
3ea1e2fc | 858 | DBG("auto connected marker %s (addr: %p) %s to probe default", m->channel, m, m->name); |
ef290fca | 859 | |
20b37a31 PMF |
860 | } |
861 | ||
c1083aa8 | 862 | static void __attribute__((constructor)) init() |
20b37a31 PMF |
863 | { |
864 | int result; | |
5de74e51 | 865 | char* autoprobe_val = NULL; |
20b37a31 | 866 | |
ed1317e7 PMF |
867 | /* Assign the pidunique, to be able to differentiate the processes with same |
868 | * pid, (before and after an exec). | |
869 | */ | |
870 | pidunique = make_pidunique(); | |
871 | ||
4440ebcb PMF |
872 | /* Initialize RCU in case the constructor order is not good. */ |
873 | urcu_init(); | |
874 | ||
875 | /* It is important to do this before events start to be generated. */ | |
876 | ust_register_thread(); | |
877 | ||
5de74e51 | 878 | DBG("Tracectl constructor"); |
20b37a31 | 879 | |
3847c3ba PMF |
880 | /* Must create socket before signal handler to prevent races. |
881 | */ | |
882 | result = init_socket(); | |
883 | if(result == -1) { | |
884 | ERR("init_socket error"); | |
885 | return; | |
886 | } | |
2944a629 PMF |
887 | |
888 | create_listener(); | |
68c1021b | 889 | |
5de74e51 PMF |
890 | autoprobe_val = getenv("UST_AUTOPROBE"); |
891 | if(autoprobe_val) { | |
4440ebcb PMF |
892 | struct marker_iter iter; |
893 | ||
08230db7 | 894 | DBG("Autoprobe enabled."); |
4440ebcb PMF |
895 | |
896 | /* Ensure markers are initialized */ | |
897 | //init_markers(); | |
898 | ||
899 | /* Ensure marker control is initialized, for the probe */ | |
900 | init_marker_control(); | |
901 | ||
902 | /* first, set the callback that will connect the | |
903 | * probe on new markers | |
904 | */ | |
5de74e51 PMF |
905 | if(autoprobe_val[0] == '/') { |
906 | result = regcomp(&autoprobe_regex, autoprobe_val+1, 0); | |
907 | if (result) { | |
908 | char regexerr[150]; | |
909 | ||
910 | regerror(result, &autoprobe_regex, regexerr, sizeof(regexerr)); | |
911 | ERR("cannot parse regex %s (%s), will ignore UST_AUTOPROBE", autoprobe_val, regexerr); | |
912 | /* don't crash the application just for this */ | |
913 | } | |
914 | else { | |
915 | autoprobe_method = AUTOPROBE_ENABLE_REGEX; | |
916 | } | |
ef290fca | 917 | } |
5de74e51 PMF |
918 | else { |
919 | /* just enable all instrumentation */ | |
920 | autoprobe_method = AUTOPROBE_ENABLE_ALL; | |
921 | } | |
922 | ||
923 | marker_set_new_marker_cb(auto_probe_connect); | |
924 | ||
4440ebcb PMF |
925 | /* Now, connect the probes that were already registered. */ |
926 | marker_iter_reset(&iter); | |
927 | marker_iter_start(&iter); | |
928 | ||
08230db7 | 929 | DBG("now iterating on markers already registered"); |
4440ebcb | 930 | while(iter.marker) { |
08230db7 | 931 | DBG("now iterating on marker %s", iter.marker->name); |
4440ebcb PMF |
932 | auto_probe_connect(iter.marker); |
933 | marker_iter_next(&iter); | |
934 | } | |
935 | } | |
936 | ||
4db647c5 PMF |
937 | if(getenv("UST_TRACE")) { |
938 | char trace_name[] = "auto"; | |
939 | char trace_type[] = "ustrelay"; | |
940 | ||
941 | DBG("starting early tracing"); | |
942 | ||
943 | /* Ensure marker control is initialized */ | |
944 | init_marker_control(); | |
945 | ||
946 | /* Ensure relay is initialized */ | |
947 | init_ustrelay_transport(); | |
948 | ||
949 | /* Ensure markers are initialized */ | |
950 | init_markers(); | |
951 | ||
027ffc9d PMF |
952 | /* FIXME: When starting early tracing (here), depending on the |
953 | * order of constructors, it is very well possible some marker | |
954 | * sections are not yet registered. Because of this, some | |
955 | * channels may not be registered. Yet, we are about to ask the | |
956 | * daemon to collect the channels. Channels which are not yet | |
957 | * registered will not be collected. | |
958 | * | |
959 | * Currently, in LTTng, there is no way to add a channel after | |
960 | * trace start. The reason for this is that it induces complex | |
961 | * concurrency issues on the trace structures, which can only | |
962 | * be resolved using RCU. This has not been done yet. As a | |
963 | * workaround, we are forcing the registration of the "ust" | |
964 | * channel here. This is the only channel (apart from metadata) | |
965 | * that can be reliably used in early tracing. | |
966 | * | |
967 | * Non-early tracing does not have this problem and can use | |
968 | * arbitrary channel names. | |
969 | */ | |
20b37a31 | 970 | ltt_channels_register("ust"); |
4db647c5 PMF |
971 | |
972 | result = ltt_trace_setup(trace_name); | |
973 | if(result < 0) { | |
974 | ERR("ltt_trace_setup failed"); | |
975 | return; | |
976 | } | |
977 | ||
978 | result = ltt_trace_set_type(trace_name, trace_type); | |
979 | if(result < 0) { | |
980 | ERR("ltt_trace_set_type failed"); | |
981 | return; | |
982 | } | |
983 | ||
984 | result = ltt_trace_alloc(trace_name); | |
985 | if(result < 0) { | |
986 | ERR("ltt_trace_alloc failed"); | |
987 | return; | |
988 | } | |
989 | ||
990 | result = ltt_trace_start(trace_name); | |
991 | if(result < 0) { | |
992 | ERR("ltt_trace_start failed"); | |
993 | return; | |
994 | } | |
60e57148 PMF |
995 | |
996 | /* Do this after the trace is started in order to avoid creating confusion | |
997 | * if the trace fails to start. */ | |
998 | inform_consumer_daemon(trace_name); | |
4db647c5 PMF |
999 | } |
1000 | ||
68c1021b PMF |
1001 | |
1002 | return; | |
1003 | ||
1004 | /* should decrementally destroy stuff if error */ | |
1005 | ||
1006 | } | |
1007 | ||
1008 | /* This is only called if we terminate normally, not with an unhandled signal, | |
6d45c11a PMF |
1009 | * so we cannot rely on it. However, for now, LTTV requires that the header of |
1010 | * the last sub-buffer contain a valid end time for the trace. This is done | |
1011 | * automatically only when the trace is properly stopped. | |
1012 | * | |
1013 | * If the traced program crashed, it is always possible to manually add the | |
1014 | * right value in the header, or to open the trace in text mode. | |
1015 | * | |
1016 | * FIXME: Fix LTTV so it doesn't need this. | |
1017 | */ | |
68c1021b | 1018 | |
6d45c11a | 1019 | static void destroy_traces(void) |
68c1021b | 1020 | { |
6d45c11a | 1021 | int result; |
a584bc4e PMF |
1022 | |
1023 | /* if trace running, finish it */ | |
1024 | ||
6d45c11a | 1025 | DBG("destructor stopping traces"); |
a584bc4e | 1026 | |
6d45c11a PMF |
1027 | result = ltt_trace_stop("auto"); |
1028 | if(result == -1) { | |
1029 | ERR("ltt_trace_stop error"); | |
1030 | } | |
1031 | ||
1032 | result = ltt_trace_destroy("auto"); | |
1033 | if(result == -1) { | |
1034 | ERR("ltt_trace_destroy error"); | |
1035 | } | |
68c1021b | 1036 | } |
1e2944cb | 1037 | |
97d9b88b PMF |
1038 | static int trace_recording(void) |
1039 | { | |
1040 | int retval = 0; | |
1041 | struct ltt_trace_struct *trace; | |
1042 | ||
1043 | ltt_lock_traces(); | |
1044 | ||
1045 | list_for_each_entry(trace, <t_traces.head, list) { | |
1046 | if(trace->active) { | |
1047 | retval = 1; | |
1048 | break; | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | ltt_unlock_traces(); | |
1053 | ||
1054 | return retval; | |
1055 | } | |
1056 | ||
f293009f | 1057 | #if 0 |
97d9b88b PMF |
1058 | static int have_consumer(void) |
1059 | { | |
1060 | return !list_empty(&blocked_consumers); | |
1061 | } | |
f293009f | 1062 | #endif |
97d9b88b | 1063 | |
f293009f | 1064 | int restarting_usleep(useconds_t usecs) |
97d9b88b PMF |
1065 | { |
1066 | struct timespec tv; | |
1067 | int result; | |
1068 | ||
f293009f PMF |
1069 | tv.tv_sec = 0; |
1070 | tv.tv_nsec = usecs * 1000; | |
97d9b88b PMF |
1071 | |
1072 | do { | |
1073 | result = nanosleep(&tv, &tv); | |
1074 | } while(result == -1 && errno == EINTR); | |
1075 | ||
1076 | return result; | |
1077 | } | |
1078 | ||
f293009f PMF |
1079 | /* This destructor keeps the process alive for a few seconds in order |
1080 | * to leave time to ustd to connect to its buffers. This is necessary | |
1081 | * for programs whose execution is very short. It is also useful in all | |
1082 | * programs when tracing is started close to the end of the program | |
1083 | * execution. | |
1084 | * | |
1085 | * FIXME: For now, this only works for the first trace created in a | |
1086 | * process. | |
1087 | */ | |
1088 | ||
97d9b88b PMF |
1089 | static void __attribute__((destructor)) keepalive() |
1090 | { | |
f293009f | 1091 | if(trace_recording() && buffers_to_export) { |
c472cce0 | 1092 | int total = 0; |
f293009f PMF |
1093 | DBG("Keeping process alive for consumer daemon..."); |
1094 | while(buffers_to_export) { | |
1095 | const int interv = 200000; | |
c472cce0 | 1096 | restarting_usleep(interv); |
f293009f PMF |
1097 | total += interv; |
1098 | ||
1099 | if(total >= 3000000) { | |
c472cce0 | 1100 | WARN("non-consumed buffers remaining after wait limit; not waiting anymore"); |
f293009f PMF |
1101 | break; |
1102 | } | |
1103 | } | |
1104 | DBG("Finally dying..."); | |
1105 | } | |
6d45c11a PMF |
1106 | |
1107 | destroy_traces(); | |
1108 | ||
1109 | ustcomm_fini_app(&ustcomm_app); | |
97d9b88b | 1110 | } |
97d9b88b | 1111 | |
775c8a3f | 1112 | void ust_potential_exec(void) |
c396a841 PMF |
1113 | { |
1114 | trace_mark(ust, potential_exec, MARK_NOARGS); | |
1115 | ||
775c8a3f PMF |
1116 | DBG("test"); |
1117 | ||
c396a841 PMF |
1118 | keepalive(); |
1119 | } | |
1120 | ||
1e2944cb PMF |
1121 | /* Notify ust that there was a fork. This needs to be called inside |
1122 | * the new process, anytime a process whose memory is not shared with | |
1123 | * the parent is created. If this function is not called, the events | |
1124 | * of the new process will not be collected. | |
1125 | */ | |
1126 | ||
775c8a3f | 1127 | void ust_fork(void) |
1e2944cb | 1128 | { |
99b72dc0 PMF |
1129 | struct blocked_consumer *bc; |
1130 | struct blocked_consumer *deletable_bc = NULL; | |
1131 | int result; | |
1132 | ||
1e2944cb PMF |
1133 | DBG("ust: forking"); |
1134 | ltt_trace_stop("auto"); | |
1135 | ltt_trace_destroy("auto"); | |
99b72dc0 PMF |
1136 | /* Delete all active connections */ |
1137 | ustcomm_close_all_connections(&ustcomm_app.server); | |
1138 | ||
1139 | /* Delete all blocked consumers */ | |
1140 | list_for_each_entry(bc, &blocked_consumers, list) { | |
d9ce395d PMF |
1141 | close(bc->fd_producer); |
1142 | close(bc->fd_consumer); | |
99b72dc0 PMF |
1143 | free(deletable_bc); |
1144 | deletable_bc = bc; | |
1145 | list_del(&bc->list); | |
1146 | } | |
1147 | ||
1e2944cb PMF |
1148 | have_listener = 0; |
1149 | create_listener(); | |
99b72dc0 PMF |
1150 | init_socket(); |
1151 | ltt_trace_setup("auto"); | |
1152 | result = ltt_trace_set_type("auto", "ustrelay"); | |
1153 | if(result < 0) { | |
1154 | ERR("ltt_trace_set_type failed"); | |
036db133 | 1155 | return; |
99b72dc0 PMF |
1156 | } |
1157 | ||
1158 | ltt_trace_alloc("auto"); | |
1159 | ltt_trace_start("auto"); | |
ad45e833 | 1160 | inform_consumer_daemon("auto"); |
1e2944cb PMF |
1161 | } |
1162 |