Commit | Line | Data |
---|---|---|
2691221a MD |
1 | /* |
2 | * lttng-ust-comm.c | |
3 | * | |
4 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> | |
5 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
6 | * | |
7 | * This library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; only | |
10 | * version 2.1 of the License. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with this library; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | #include <sys/types.h> | |
23 | #include <sys/socket.h> | |
2629549e | 24 | #include <sys/prctl.h> |
2691221a MD |
25 | #include <unistd.h> |
26 | #include <errno.h> | |
d9e99d10 | 27 | #include <pthread.h> |
11ff9c7d MD |
28 | #include <semaphore.h> |
29 | #include <time.h> | |
1ea11eab | 30 | #include <assert.h> |
95259bd0 | 31 | #include <urcu/uatomic.h> |
1ea11eab | 32 | |
edaa1431 MD |
33 | #include <lttng-ust-comm.h> |
34 | #include <ust/usterr-signal-safe.h> | |
35 | #include <ust/lttng-ust-abi.h> | |
36 | #include <ust/tracepoint.h> | |
37 | ||
38 | /* | |
39 | * Has lttng ust comm constructor been called ? | |
40 | */ | |
41 | static int initialized; | |
42 | ||
1ea11eab MD |
43 | /* |
44 | * communication thread mutex. Held when handling a command, also held | |
45 | * by fork() to deal with removal of threads, and by exit path. | |
46 | */ | |
47 | static pthread_mutex_t lttng_ust_comm_mutex = PTHREAD_MUTEX_INITIALIZER; | |
48 | ||
49 | /* Should the ust comm thread quit ? */ | |
50 | static int lttng_ust_comm_should_quit; | |
51 | ||
11ff9c7d MD |
52 | /* |
53 | * Wait for either of these before continuing to the main | |
54 | * program: | |
55 | * - the register_done message from sessiond daemon | |
56 | * (will let the sessiond daemon enable sessions before main | |
57 | * starts.) | |
58 | * - sessiond daemon is not reachable. | |
59 | * - timeout (ensuring applications are resilient to session | |
60 | * daemon problems). | |
61 | */ | |
62 | static sem_t constructor_wait; | |
950aab0c MD |
63 | /* |
64 | * Doing this for both the global and local sessiond. | |
65 | */ | |
95259bd0 | 66 | static int sem_count = { 2 }; |
11ff9c7d | 67 | |
1ea11eab MD |
68 | /* |
69 | * Info about socket and associated listener thread. | |
70 | */ | |
71 | struct sock_info { | |
11ff9c7d | 72 | const char *name; |
1ea11eab MD |
73 | char sock_path[PATH_MAX]; |
74 | int socket; | |
75 | pthread_t ust_listener; /* listener thread */ | |
46050b1a | 76 | int root_handle; |
8d20bf54 MD |
77 | int constructor_sem_posted; |
78 | int allowed; | |
1ea11eab | 79 | }; |
2691221a MD |
80 | |
81 | /* Socket from app (connect) to session daemon (listen) for communication */ | |
1ea11eab | 82 | struct sock_info global_apps = { |
11ff9c7d | 83 | .name = "global", |
1ea11eab MD |
84 | .sock_path = DEFAULT_GLOBAL_APPS_UNIX_SOCK, |
85 | .socket = -1, | |
46050b1a | 86 | .root_handle = -1, |
8d20bf54 | 87 | .allowed = 1, |
1ea11eab | 88 | }; |
2691221a MD |
89 | |
90 | /* TODO: allow global_apps_sock_path override */ | |
91 | ||
1ea11eab | 92 | struct sock_info local_apps = { |
11ff9c7d | 93 | .name = "local", |
1ea11eab | 94 | .socket = -1, |
46050b1a | 95 | .root_handle = -1, |
8d20bf54 | 96 | .allowed = 0, /* Check setuid bit first */ |
1ea11eab | 97 | }; |
2691221a | 98 | |
edaa1431 MD |
99 | extern void ltt_ring_buffer_client_overwrite_init(void); |
100 | extern void ltt_ring_buffer_client_discard_init(void); | |
101 | extern void ltt_ring_buffer_metadata_client_init(void); | |
102 | extern void ltt_ring_buffer_client_overwrite_exit(void); | |
103 | extern void ltt_ring_buffer_client_discard_exit(void); | |
104 | extern void ltt_ring_buffer_metadata_client_exit(void); | |
105 | ||
2691221a | 106 | static |
8d20bf54 | 107 | int setup_local_apps(void) |
2691221a MD |
108 | { |
109 | const char *home_dir; | |
2691221a | 110 | |
8d20bf54 MD |
111 | /* |
112 | * Disallow per-user tracing for setuid binaries. | |
113 | */ | |
114 | if (getuid() != geteuid()) { | |
115 | local_apps.allowed = 0; | |
116 | return; | |
117 | } else { | |
118 | local_apps.allowed = 1; | |
119 | } | |
2691221a MD |
120 | home_dir = (const char *) getenv("HOME"); |
121 | if (!home_dir) | |
122 | return -ENOENT; | |
1ea11eab | 123 | snprintf(local_apps.sock_path, PATH_MAX, |
2691221a | 124 | DEFAULT_HOME_APPS_UNIX_SOCK, home_dir); |
2691221a MD |
125 | return 0; |
126 | } | |
127 | ||
128 | static | |
129 | int register_app_to_sessiond(int socket) | |
130 | { | |
131 | ssize_t ret; | |
2629549e | 132 | int prctl_ret; |
2691221a | 133 | struct { |
e44418f3 MD |
134 | uint32_t major; |
135 | uint32_t minor; | |
2691221a | 136 | pid_t pid; |
5c33bde8 | 137 | pid_t ppid; |
2691221a | 138 | uid_t uid; |
83610856 | 139 | gid_t gid; |
2629549e | 140 | char name[16]; /* process name */ |
2691221a MD |
141 | } reg_msg; |
142 | ||
e44418f3 MD |
143 | reg_msg.major = LTTNG_UST_COMM_VERSION_MAJOR; |
144 | reg_msg.minor = LTTNG_UST_COMM_VERSION_MINOR; | |
2691221a | 145 | reg_msg.pid = getpid(); |
5c33bde8 | 146 | reg_msg.ppid = getppid(); |
2691221a | 147 | reg_msg.uid = getuid(); |
83610856 | 148 | reg_msg.gid = getgid(); |
2629549e MD |
149 | prctl_ret = prctl(PR_GET_NAME, (unsigned long) reg_msg.name, 0, 0, 0); |
150 | if (prctl_ret) { | |
151 | ERR("Error executing prctl"); | |
152 | return -errno; | |
153 | } | |
2691221a MD |
154 | |
155 | ret = lttcomm_send_unix_sock(socket, ®_msg, sizeof(reg_msg)); | |
156 | if (ret >= 0 && ret != sizeof(reg_msg)) | |
157 | return -EIO; | |
158 | return ret; | |
159 | } | |
160 | ||
d9e99d10 | 161 | static |
d3a492d1 | 162 | int send_reply(int sock, struct lttcomm_ust_reply *lur) |
d9e99d10 | 163 | { |
9eb62b9c | 164 | ssize_t len; |
d3a492d1 | 165 | |
a4be8962 | 166 | len = lttcomm_send_unix_sock(sock, lur, sizeof(*lur)); |
d3a492d1 | 167 | switch (len) { |
a4be8962 | 168 | case sizeof(*lur): |
d3a492d1 MD |
169 | DBG("message successfully sent"); |
170 | return 0; | |
171 | case -1: | |
172 | if (errno == ECONNRESET) { | |
173 | printf("remote end closed connection\n"); | |
174 | return 0; | |
175 | } | |
176 | return -1; | |
177 | default: | |
178 | printf("incorrect message size: %zd\n", len); | |
179 | return -1; | |
180 | } | |
181 | } | |
182 | ||
183 | static | |
edaa1431 | 184 | int handle_register_done(struct sock_info *sock_info) |
11ff9c7d MD |
185 | { |
186 | int ret; | |
187 | ||
edaa1431 MD |
188 | if (sock_info->constructor_sem_posted) |
189 | return 0; | |
190 | sock_info->constructor_sem_posted = 1; | |
95259bd0 MD |
191 | ret = uatomic_add_return(&sem_count, -1); |
192 | if (ret == 0) { | |
193 | ret = sem_post(&constructor_wait); | |
194 | assert(!ret); | |
195 | } | |
11ff9c7d MD |
196 | return 0; |
197 | } | |
198 | ||
199 | static | |
200 | int handle_message(struct sock_info *sock_info, | |
201 | int sock, struct lttcomm_ust_msg *lum) | |
d3a492d1 | 202 | { |
1ea11eab | 203 | int ret = 0; |
46050b1a MD |
204 | const struct objd_ops *ops; |
205 | struct lttcomm_ust_reply lur; | |
1ea11eab MD |
206 | |
207 | pthread_mutex_lock(<tng_ust_comm_mutex); | |
208 | ||
46050b1a MD |
209 | memset(&lur, 0, sizeof(lur)); |
210 | ||
1ea11eab | 211 | if (lttng_ust_comm_should_quit) { |
46050b1a | 212 | ret = -EPERM; |
1ea11eab MD |
213 | goto end; |
214 | } | |
9eb62b9c | 215 | |
46050b1a MD |
216 | ops = objd_ops(lum->handle); |
217 | if (!ops) { | |
218 | ret = -ENOENT; | |
219 | goto end; | |
1ea11eab | 220 | } |
46050b1a MD |
221 | |
222 | switch (lum->cmd) { | |
11ff9c7d MD |
223 | case LTTNG_UST_REGISTER_DONE: |
224 | if (lum->handle == LTTNG_UST_ROOT_HANDLE) | |
edaa1431 | 225 | ret = handle_register_done(sock_info); |
11ff9c7d MD |
226 | else |
227 | ret = -EINVAL; | |
228 | break; | |
46050b1a MD |
229 | case LTTNG_UST_RELEASE: |
230 | if (lum->handle == LTTNG_UST_ROOT_HANDLE) | |
231 | ret = -EPERM; | |
232 | else | |
233 | ret = objd_unref(lum->handle); | |
d9e99d10 MD |
234 | break; |
235 | default: | |
46050b1a MD |
236 | if (ops->cmd) |
237 | ret = ops->cmd(lum->handle, lum->cmd, | |
238 | (unsigned long) &lum->u); | |
239 | else | |
240 | ret = -ENOSYS; | |
241 | break; | |
d9e99d10 | 242 | } |
46050b1a | 243 | |
1ea11eab | 244 | end: |
46050b1a MD |
245 | lur.handle = lum->handle; |
246 | lur.cmd = lum->cmd; | |
247 | lur.ret_val = ret; | |
248 | if (ret >= 0) { | |
249 | lur.ret_code = LTTCOMM_OK; | |
250 | } else { | |
251 | lur.ret_code = LTTCOMM_SESSION_FAIL; | |
252 | } | |
253 | ret = send_reply(sock, &lur); | |
254 | ||
1ea11eab MD |
255 | pthread_mutex_unlock(<tng_ust_comm_mutex); |
256 | return ret; | |
d9e99d10 MD |
257 | } |
258 | ||
46050b1a MD |
259 | static |
260 | void cleanup_sock_info(struct sock_info *sock_info) | |
261 | { | |
262 | int ret; | |
263 | ||
264 | if (sock_info->socket != -1) { | |
265 | ret = close(sock_info->socket); | |
266 | if (ret) { | |
267 | ERR("Error closing local apps socket"); | |
268 | } | |
269 | sock_info->socket = -1; | |
270 | } | |
271 | if (sock_info->root_handle != -1) { | |
272 | ret = objd_unref(sock_info->root_handle); | |
273 | if (ret) { | |
274 | ERR("Error unref root handle"); | |
275 | } | |
276 | sock_info->root_handle = -1; | |
277 | } | |
278 | } | |
279 | ||
1ea11eab MD |
280 | /* |
281 | * This thread does not allocate any resource, except within | |
282 | * handle_message, within mutex protection. This mutex protects against | |
283 | * fork and exit. | |
284 | * The other moment it allocates resources is at socket connexion, which | |
285 | * is also protected by the mutex. | |
286 | */ | |
d9e99d10 MD |
287 | static |
288 | void *ust_listener_thread(void *arg) | |
289 | { | |
1ea11eab MD |
290 | struct sock_info *sock_info = arg; |
291 | int sock, ret; | |
d9e99d10 | 292 | |
9eb62b9c MD |
293 | /* Restart trying to connect to the session daemon */ |
294 | restart: | |
1ea11eab MD |
295 | pthread_mutex_lock(<tng_ust_comm_mutex); |
296 | ||
297 | if (lttng_ust_comm_should_quit) { | |
298 | pthread_mutex_unlock(<tng_ust_comm_mutex); | |
299 | goto quit; | |
300 | } | |
9eb62b9c | 301 | |
1ea11eab MD |
302 | if (sock_info->socket != -1) { |
303 | ret = close(sock_info->socket); | |
304 | if (ret) { | |
11ff9c7d | 305 | ERR("Error closing %s apps socket", sock_info->name); |
1ea11eab MD |
306 | } |
307 | sock_info->socket = -1; | |
308 | } | |
46050b1a | 309 | |
9eb62b9c MD |
310 | /* Check for sessiond availability with pipe TODO */ |
311 | ||
312 | /* Register */ | |
1ea11eab | 313 | ret = lttcomm_connect_unix_sock(sock_info->sock_path); |
9eb62b9c | 314 | if (ret < 0) { |
11ff9c7d MD |
315 | ERR("Error connecting to %s apps socket", sock_info->name); |
316 | /* | |
317 | * If we cannot find the sessiond daemon, don't delay | |
318 | * constructor execution. | |
319 | */ | |
edaa1431 | 320 | ret = handle_register_done(sock_info); |
11ff9c7d | 321 | assert(!ret); |
1ea11eab | 322 | pthread_mutex_unlock(<tng_ust_comm_mutex); |
4eef2998 | 323 | sleep(5); |
1ea11eab | 324 | goto restart; |
46050b1a MD |
325 | } |
326 | ||
327 | sock_info->socket = sock = ret; | |
328 | ||
329 | /* | |
330 | * Create only one root handle per listener thread for the whole | |
331 | * process lifetime. | |
332 | */ | |
333 | if (sock_info->root_handle == -1) { | |
334 | ret = lttng_abi_create_root_handle(); | |
335 | if (ret) { | |
336 | ERR("Error creating root handle"); | |
337 | pthread_mutex_unlock(<tng_ust_comm_mutex); | |
338 | goto quit; | |
339 | } | |
340 | sock_info->root_handle = ret; | |
9eb62b9c | 341 | } |
1ea11eab | 342 | |
9eb62b9c MD |
343 | ret = register_app_to_sessiond(sock); |
344 | if (ret < 0) { | |
11ff9c7d MD |
345 | ERR("Error registering to %s apps socket", sock_info->name); |
346 | /* | |
347 | * If we cannot register to the sessiond daemon, don't | |
348 | * delay constructor execution. | |
349 | */ | |
edaa1431 | 350 | ret = handle_register_done(sock_info); |
11ff9c7d | 351 | assert(!ret); |
46050b1a | 352 | pthread_mutex_unlock(<tng_ust_comm_mutex); |
9eb62b9c MD |
353 | sleep(5); |
354 | goto restart; | |
355 | } | |
46050b1a MD |
356 | pthread_mutex_unlock(<tng_ust_comm_mutex); |
357 | ||
d9e99d10 MD |
358 | for (;;) { |
359 | ssize_t len; | |
e7723462 | 360 | struct lttcomm_ust_msg lum; |
d9e99d10 | 361 | |
e7723462 | 362 | len = lttcomm_recv_unix_sock(sock, &lum, sizeof(lum)); |
d9e99d10 MD |
363 | switch (len) { |
364 | case 0: /* orderly shutdown */ | |
11ff9c7d | 365 | DBG("%s ltt-sessiond has performed an orderly shutdown\n", sock_info->name); |
d9e99d10 | 366 | goto end; |
e7723462 | 367 | case sizeof(lum): |
d9e99d10 | 368 | DBG("message received\n"); |
11ff9c7d | 369 | ret = handle_message(sock_info, sock, &lum); |
2a80c9d8 | 370 | if (ret < 0) { |
11ff9c7d | 371 | ERR("Error handling message for %s socket", sock_info->name); |
d9e99d10 MD |
372 | } |
373 | continue; | |
374 | case -1: | |
375 | if (errno == ECONNRESET) { | |
11ff9c7d | 376 | ERR("%s remote end closed connection\n", sock_info->name); |
d9e99d10 MD |
377 | goto end; |
378 | } | |
379 | goto end; | |
380 | default: | |
11ff9c7d | 381 | ERR("incorrect message size (%s socket): %zd\n", sock_info->name, len); |
d9e99d10 MD |
382 | continue; |
383 | } | |
384 | ||
385 | } | |
386 | end: | |
9eb62b9c | 387 | goto restart; /* try to reconnect */ |
1ea11eab | 388 | quit: |
d9e99d10 MD |
389 | return NULL; |
390 | } | |
391 | ||
cf12a773 MD |
392 | /* |
393 | * Return values: -1: don't wait. 0: wait forever. 1: timeout wait. | |
394 | */ | |
11ff9c7d MD |
395 | static |
396 | int get_timeout(struct timespec *constructor_timeout) | |
397 | { | |
cf12a773 MD |
398 | long constructor_delay_ms = LTTNG_UST_DEFAULT_CONSTRUCTOR_TIMEOUT_MS; |
399 | char *str_delay; | |
11ff9c7d MD |
400 | int ret; |
401 | ||
cf12a773 MD |
402 | str_delay = getenv("UST_REGISTER_TIMEOUT"); |
403 | if (str_delay) { | |
404 | constructor_delay_ms = strtol(str_delay, NULL, 10); | |
405 | } | |
406 | ||
407 | switch (constructor_delay_ms) { | |
408 | case -1:/* fall-through */ | |
409 | case 0: | |
410 | return constructor_delay_ms; | |
411 | default: | |
412 | break; | |
413 | } | |
414 | ||
415 | /* | |
416 | * If we are unable to find the current time, don't wait. | |
417 | */ | |
418 | ret = clock_gettime(CLOCK_REALTIME, constructor_timeout); | |
419 | if (ret) { | |
420 | return -1; | |
421 | } | |
95259bd0 MD |
422 | constructor_timeout->tv_sec += constructor_delay_ms / 1000UL; |
423 | constructor_timeout->tv_nsec += | |
424 | (constructor_delay_ms % 1000UL) * 1000000UL; | |
11ff9c7d MD |
425 | if (constructor_timeout->tv_nsec >= 1000000000UL) { |
426 | constructor_timeout->tv_sec++; | |
427 | constructor_timeout->tv_nsec -= 1000000000UL; | |
428 | } | |
cf12a773 | 429 | return 1; |
11ff9c7d | 430 | } |
d9e99d10 | 431 | |
2691221a MD |
432 | /* |
433 | * sessiond monitoring thread: monitor presence of global and per-user | |
434 | * sessiond by polling the application common named pipe. | |
435 | */ | |
436 | /* TODO */ | |
437 | ||
edaa1431 | 438 | void __attribute__((constructor)) lttng_ust_init(void) |
2691221a | 439 | { |
11ff9c7d | 440 | struct timespec constructor_timeout; |
cf12a773 | 441 | int timeout_mode; |
2691221a MD |
442 | int ret; |
443 | ||
edaa1431 MD |
444 | if (uatomic_xchg(&initialized, 1) == 1) |
445 | return; | |
446 | ||
447 | /* | |
448 | * We want precise control over the order in which we construct | |
449 | * our sub-libraries vs starting to receive commands from | |
450 | * sessiond (otherwise leading to errors when trying to create | |
451 | * sessiond before the init functions are completed). | |
452 | */ | |
2691221a | 453 | init_usterr(); |
edaa1431 MD |
454 | init_tracepoint(); |
455 | ltt_ring_buffer_metadata_client_init(); | |
456 | ltt_ring_buffer_client_overwrite_init(); | |
457 | ltt_ring_buffer_client_discard_init(); | |
2691221a | 458 | |
cf12a773 | 459 | timeout_mode = get_timeout(&constructor_timeout); |
11ff9c7d | 460 | |
95259bd0 | 461 | ret = sem_init(&constructor_wait, 0, 0); |
11ff9c7d MD |
462 | assert(!ret); |
463 | ||
8d20bf54 | 464 | ret = setup_local_apps(); |
2691221a | 465 | if (ret) { |
8d20bf54 | 466 | ERR("Error setting up to local apps"); |
2691221a | 467 | } |
1ea11eab MD |
468 | ret = pthread_create(&local_apps.ust_listener, NULL, |
469 | ust_listener_thread, &local_apps); | |
11ff9c7d | 470 | |
8d20bf54 MD |
471 | if (local_apps.allowed) { |
472 | ret = pthread_create(&global_apps.ust_listener, NULL, | |
473 | ust_listener_thread, &global_apps); | |
474 | } else { | |
475 | handle_register_done(&local_apps); | |
476 | } | |
477 | ||
cf12a773 MD |
478 | switch (timeout_mode) { |
479 | case 1: /* timeout wait */ | |
95259bd0 MD |
480 | do { |
481 | ret = sem_timedwait(&constructor_wait, | |
482 | &constructor_timeout); | |
483 | } while (ret < 0 && errno == EINTR); | |
cf12a773 MD |
484 | if (ret < 0 && errno == ETIMEDOUT) { |
485 | ERR("Timed out waiting for ltt-sessiond"); | |
486 | } else { | |
487 | assert(!ret); | |
488 | } | |
489 | break; | |
7b766b16 | 490 | case -1:/* wait forever */ |
95259bd0 MD |
491 | do { |
492 | ret = sem_wait(&constructor_wait); | |
493 | } while (ret < 0 && errno == EINTR); | |
11ff9c7d | 494 | assert(!ret); |
cf12a773 | 495 | break; |
7b766b16 | 496 | case 0: /* no timeout */ |
cf12a773 | 497 | break; |
11ff9c7d | 498 | } |
2691221a MD |
499 | } |
500 | ||
edaa1431 | 501 | void __attribute__((destructor)) lttng_ust_exit(void) |
2691221a MD |
502 | { |
503 | int ret; | |
504 | ||
9eb62b9c MD |
505 | /* |
506 | * Using pthread_cancel here because: | |
507 | * A) we don't want to hang application teardown. | |
508 | * B) the thread is not allocating any resource. | |
509 | */ | |
1ea11eab MD |
510 | |
511 | /* | |
512 | * Require the communication thread to quit. Synchronize with | |
513 | * mutexes to ensure it is not in a mutex critical section when | |
514 | * pthread_cancel is later called. | |
515 | */ | |
516 | pthread_mutex_lock(<tng_ust_comm_mutex); | |
517 | lttng_ust_comm_should_quit = 1; | |
518 | pthread_mutex_unlock(<tng_ust_comm_mutex); | |
519 | ||
1ea11eab | 520 | ret = pthread_cancel(global_apps.ust_listener); |
9eb62b9c MD |
521 | if (ret) { |
522 | ERR("Error cancelling global ust listener thread"); | |
2691221a | 523 | } |
46050b1a MD |
524 | |
525 | cleanup_sock_info(&global_apps); | |
1ea11eab | 526 | |
8d20bf54 MD |
527 | if (local_apps.allowed) { |
528 | ret = pthread_cancel(local_apps.ust_listener); | |
529 | if (ret) { | |
530 | ERR("Error cancelling local ust listener thread"); | |
531 | } | |
1ea11eab | 532 | |
8d20bf54 MD |
533 | cleanup_sock_info(&local_apps); |
534 | } | |
1ea11eab | 535 | |
b35d179d | 536 | lttng_ust_abi_exit(); |
1ea11eab | 537 | ltt_events_exit(); |
edaa1431 MD |
538 | ltt_ring_buffer_client_discard_exit(); |
539 | ltt_ring_buffer_client_overwrite_exit(); | |
540 | ltt_ring_buffer_metadata_client_exit(); | |
541 | exit_tracepoint(); | |
2691221a | 542 | } |