0
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9 #include <ngx_event.h>
|
|
10 #include <ngx_channel.h>
|
|
11
|
|
12
|
|
13 static void ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n,
|
50
|
14 ngx_int_t type);
|
16
|
15 static void ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type);
|
0
|
16 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
|
|
17 static ngx_uint_t ngx_reap_childs(ngx_cycle_t *cycle);
|
122
|
18 static void ngx_master_process_exit(ngx_cycle_t *cycle);
|
0
|
19 static void ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data);
|
22
|
20 static void ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority);
|
122
|
21 static void ngx_worker_process_exit(ngx_cycle_t *cycle);
|
0
|
22 static void ngx_channel_handler(ngx_event_t *ev);
|
|
23 #if (NGX_THREADS)
|
|
24 static void ngx_wakeup_worker_threads(ngx_cycle_t *cycle);
|
112
|
25 static ngx_thread_value_t ngx_worker_thread_cycle(void *data);
|
0
|
26 #endif
|
50
|
27 #if 0
|
16
|
28 static void ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data);
|
50
|
29 #endif
|
0
|
30
|
|
31
|
|
32 ngx_uint_t ngx_process;
|
|
33 ngx_pid_t ngx_pid;
|
|
34 ngx_uint_t ngx_threaded;
|
|
35
|
|
36 sig_atomic_t ngx_reap;
|
|
37 sig_atomic_t ngx_sigio;
|
|
38 sig_atomic_t ngx_terminate;
|
|
39 sig_atomic_t ngx_quit;
|
26
|
40 sig_atomic_t ngx_debug_quit;
|
0
|
41 ngx_uint_t ngx_exiting;
|
|
42 sig_atomic_t ngx_reconfigure;
|
|
43 sig_atomic_t ngx_reopen;
|
|
44
|
|
45 sig_atomic_t ngx_change_binary;
|
|
46 ngx_pid_t ngx_new_binary;
|
|
47 ngx_uint_t ngx_inherited;
|
|
48 ngx_uint_t ngx_daemonized;
|
|
49
|
|
50 sig_atomic_t ngx_noaccept;
|
|
51 ngx_uint_t ngx_noaccepting;
|
|
52 ngx_uint_t ngx_restart;
|
|
53
|
|
54
|
|
55 #if (NGX_THREADS)
|
|
56 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
|
|
57 ngx_int_t ngx_threads_n;
|
|
58 #endif
|
|
59
|
|
60
|
126
|
61 u_long cpu_affinity;
|
|
62 static u_char master_process[] = "master process";
|
0
|
63
|
|
64
|
50
|
65 void
|
|
66 ngx_master_process_cycle(ngx_cycle_t *cycle)
|
0
|
67 {
|
|
68 char *title;
|
|
69 u_char *p;
|
|
70 size_t size;
|
|
71 ngx_int_t i;
|
80
|
72 ngx_uint_t n;
|
0
|
73 sigset_t set;
|
|
74 struct itimerval itv;
|
|
75 ngx_uint_t live;
|
|
76 ngx_msec_t delay;
|
80
|
77 ngx_listening_t *ls;
|
0
|
78 ngx_core_conf_t *ccf;
|
|
79
|
|
80 sigemptyset(&set);
|
|
81 sigaddset(&set, SIGCHLD);
|
|
82 sigaddset(&set, SIGALRM);
|
|
83 sigaddset(&set, SIGIO);
|
|
84 sigaddset(&set, SIGINT);
|
|
85 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
86 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
87 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
|
|
88 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
|
|
89 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
90 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
91
|
|
92 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
|
|
93 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
94 "sigprocmask() failed");
|
|
95 }
|
|
96
|
|
97 sigemptyset(&set);
|
|
98
|
|
99
|
|
100 size = sizeof(master_process);
|
|
101
|
2
|
102 for (i = 0; i < ngx_argc; i++) {
|
|
103 size += ngx_strlen(ngx_argv[i]) + 1;
|
0
|
104 }
|
|
105
|
|
106 title = ngx_palloc(cycle->pool, size);
|
|
107
|
|
108 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
|
2
|
109 for (i = 0; i < ngx_argc; i++) {
|
0
|
110 *p++ = ' ';
|
2
|
111 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
|
0
|
112 }
|
|
113
|
|
114 ngx_setproctitle(title);
|
|
115
|
|
116
|
|
117 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
118
|
|
119 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
120 NGX_PROCESS_RESPAWN);
|
16
|
121 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
|
0
|
122
|
|
123 ngx_new_binary = 0;
|
|
124 delay = 0;
|
|
125 live = 1;
|
|
126
|
|
127 for ( ;; ) {
|
|
128 if (delay) {
|
|
129 delay *= 2;
|
|
130
|
|
131 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
132 "temination cycle: %d", delay);
|
|
133
|
|
134 itv.it_interval.tv_sec = 0;
|
|
135 itv.it_interval.tv_usec = 0;
|
|
136 itv.it_value.tv_sec = delay / 1000;
|
|
137 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
|
|
138
|
|
139 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
140 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
141 "setitimer() failed");
|
|
142 }
|
|
143 }
|
|
144
|
|
145 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
|
|
146
|
|
147 sigsuspend(&set);
|
|
148
|
112
|
149 ngx_time_update(0, 0);
|
0
|
150
|
|
151 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
|
|
152
|
|
153 if (ngx_reap) {
|
|
154 ngx_reap = 0;
|
|
155 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap childs");
|
|
156
|
|
157 live = ngx_reap_childs(cycle);
|
|
158 }
|
|
159
|
|
160 if (!live && (ngx_terminate || ngx_quit)) {
|
122
|
161 ngx_master_process_exit(cycle);
|
0
|
162 }
|
|
163
|
|
164 if (ngx_terminate) {
|
|
165 if (delay == 0) {
|
|
166 delay = 50;
|
|
167 }
|
|
168
|
|
169 if (delay > 1000) {
|
|
170 ngx_signal_worker_processes(cycle, SIGKILL);
|
|
171 } else {
|
|
172 ngx_signal_worker_processes(cycle,
|
|
173 ngx_signal_value(NGX_TERMINATE_SIGNAL));
|
|
174 }
|
|
175
|
|
176 continue;
|
|
177 }
|
|
178
|
|
179 if (ngx_quit) {
|
|
180 ngx_signal_worker_processes(cycle,
|
|
181 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
80
|
182
|
|
183 ls = cycle->listening.elts;
|
|
184 for (n = 0; n < cycle->listening.nelts; n++) {
|
|
185 if (ngx_close_socket(ls[n].fd) == -1) {
|
|
186 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
|
187 ngx_close_socket_n " %V failed",
|
|
188 &ls[n].addr_text);
|
|
189 }
|
|
190 }
|
|
191 cycle->listening.nelts = 0;
|
|
192
|
0
|
193 continue;
|
|
194 }
|
|
195
|
|
196 if (ngx_reconfigure) {
|
|
197 ngx_reconfigure = 0;
|
|
198
|
|
199 if (ngx_new_binary) {
|
|
200 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
201 NGX_PROCESS_RESPAWN);
|
16
|
202 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
|
0
|
203 ngx_noaccepting = 0;
|
|
204
|
|
205 continue;
|
|
206 }
|
|
207
|
26
|
208 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
|
0
|
209
|
|
210 cycle = ngx_init_cycle(cycle);
|
|
211 if (cycle == NULL) {
|
|
212 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
213 continue;
|
|
214 }
|
|
215
|
|
216 ngx_cycle = cycle;
|
|
217 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
218 ngx_core_module);
|
|
219 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
220 NGX_PROCESS_JUST_RESPAWN);
|
16
|
221 ngx_start_garbage_collector(cycle, NGX_PROCESS_JUST_RESPAWN);
|
0
|
222 live = 1;
|
|
223 ngx_signal_worker_processes(cycle,
|
|
224 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
225 }
|
|
226
|
|
227 if (ngx_restart) {
|
|
228 ngx_restart = 0;
|
|
229 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
230 NGX_PROCESS_RESPAWN);
|
16
|
231 ngx_start_garbage_collector(cycle, NGX_PROCESS_RESPAWN);
|
0
|
232 live = 1;
|
|
233 }
|
|
234
|
|
235 if (ngx_reopen) {
|
|
236 ngx_reopen = 0;
|
26
|
237 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
0
|
238 ngx_reopen_files(cycle, ccf->user);
|
|
239 ngx_signal_worker_processes(cycle,
|
|
240 ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
241 }
|
|
242
|
|
243 if (ngx_change_binary) {
|
|
244 ngx_change_binary = 0;
|
26
|
245 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
|
2
|
246 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
|
0
|
247 }
|
|
248
|
|
249 if (ngx_noaccept) {
|
|
250 ngx_noaccept = 0;
|
|
251 ngx_noaccepting = 1;
|
|
252 ngx_signal_worker_processes(cycle,
|
|
253 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
254 }
|
|
255 }
|
|
256 }
|
|
257
|
|
258
|
50
|
259 void
|
|
260 ngx_single_process_cycle(ngx_cycle_t *cycle)
|
0
|
261 {
|
|
262 ngx_uint_t i;
|
|
263
|
|
264 ngx_init_temp_number();
|
|
265
|
|
266 for (i = 0; ngx_modules[i]; i++) {
|
|
267 if (ngx_modules[i]->init_process) {
|
|
268 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
269 /* fatal */
|
|
270 exit(2);
|
|
271 }
|
|
272 }
|
|
273 }
|
|
274
|
|
275 for ( ;; ) {
|
|
276 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
277
|
112
|
278 ngx_process_events_and_timers(cycle);
|
0
|
279
|
|
280 if (ngx_terminate || ngx_quit) {
|
120
|
281
|
|
282 for (i = 0; ngx_modules[i]; i++) {
|
|
283 if (ngx_modules[i]->exit_process) {
|
|
284 ngx_modules[i]->exit_process(cycle);
|
|
285 }
|
|
286 }
|
|
287
|
122
|
288 ngx_master_process_exit(cycle);
|
0
|
289 }
|
|
290
|
|
291 if (ngx_reconfigure) {
|
|
292 ngx_reconfigure = 0;
|
26
|
293 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
|
0
|
294
|
|
295 cycle = ngx_init_cycle(cycle);
|
|
296 if (cycle == NULL) {
|
|
297 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
298 continue;
|
|
299 }
|
|
300
|
|
301 ngx_cycle = cycle;
|
|
302 }
|
|
303
|
|
304 if (ngx_reopen) {
|
|
305 ngx_reopen = 0;
|
26
|
306 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
0
|
307 ngx_reopen_files(cycle, (ngx_uid_t) -1);
|
|
308 }
|
|
309 }
|
|
310 }
|
|
311
|
|
312
|
50
|
313 static void
|
|
314 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n, ngx_int_t type)
|
0
|
315 {
|
126
|
316 ngx_int_t i, s;
|
106
|
317 ngx_channel_t ch;
|
0
|
318
|
26
|
319 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
|
0
|
320
|
|
321 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
322
|
126
|
323 for (i = 0; i < n; i++) {
|
|
324
|
|
325 cpu_affinity = ngx_get_cpu_affinity(i);
|
|
326
|
0
|
327 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
|
|
328 "worker process", type);
|
|
329
|
|
330 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
331 ch.slot = ngx_process_slot;
|
|
332 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
333
|
126
|
334 for (s = 0; s < ngx_last_process; s++) {
|
0
|
335
|
126
|
336 if (s == ngx_process_slot
|
|
337 || ngx_processes[s].pid == -1
|
|
338 || ngx_processes[s].channel[0] == -1)
|
0
|
339 {
|
|
340 continue;
|
|
341 }
|
|
342
|
|
343 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
344 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
345 ch.slot, ch.pid, ch.fd,
|
126
|
346 s, ngx_processes[s].pid,
|
|
347 ngx_processes[s].channel[0]);
|
0
|
348
|
|
349 /* TODO: NGX_AGAIN */
|
|
350
|
126
|
351 ngx_write_channel(ngx_processes[s].channel[0],
|
0
|
352 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
353 }
|
|
354 }
|
|
355 }
|
|
356
|
|
357
|
50
|
358 static void
|
|
359 ngx_start_garbage_collector(ngx_cycle_t *cycle, ngx_int_t type)
|
16
|
360 {
|
50
|
361 #if 0
|
|
362 ngx_int_t i;
|
|
363 ngx_channel_t ch;
|
16
|
364
|
26
|
365 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start garbage collector");
|
16
|
366
|
|
367 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
368
|
|
369 ngx_spawn_process(cycle, ngx_garbage_collector_cycle, NULL,
|
|
370 "garbage collector", type);
|
|
371
|
|
372 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
373 ch.slot = ngx_process_slot;
|
|
374 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
375
|
|
376 for (i = 0; i < ngx_last_process; i++) {
|
|
377
|
|
378 if (i == ngx_process_slot
|
|
379 || ngx_processes[i].pid == -1
|
|
380 || ngx_processes[i].channel[0] == -1)
|
|
381 {
|
|
382 continue;
|
|
383 }
|
|
384
|
|
385 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
386 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
387 ch.slot, ch.pid, ch.fd,
|
|
388 i, ngx_processes[i].pid,
|
|
389 ngx_processes[i].channel[0]);
|
|
390
|
|
391 /* TODO: NGX_AGAIN */
|
|
392
|
|
393 ngx_write_channel(ngx_processes[i].channel[0],
|
|
394 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
395 }
|
50
|
396 #endif
|
16
|
397 }
|
|
398
|
|
399
|
50
|
400 static void
|
|
401 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
0
|
402 {
|
|
403 ngx_int_t i;
|
|
404 ngx_err_t err;
|
|
405 ngx_channel_t ch;
|
|
406
|
|
407 switch (signo) {
|
|
408
|
|
409 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
410 ch.command = NGX_CMD_QUIT;
|
|
411 break;
|
|
412
|
|
413 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
414 ch.command = NGX_CMD_TERMINATE;
|
|
415 break;
|
|
416
|
|
417 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
418 ch.command = NGX_CMD_REOPEN;
|
|
419 break;
|
|
420
|
|
421 default:
|
|
422 ch.command = 0;
|
|
423 }
|
|
424
|
|
425 ch.fd = -1;
|
|
426
|
|
427
|
|
428 for (i = 0; i < ngx_last_process; i++) {
|
|
429
|
|
430 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
431 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
0
|
432 i,
|
|
433 ngx_processes[i].pid,
|
|
434 ngx_processes[i].exiting,
|
|
435 ngx_processes[i].exited,
|
|
436 ngx_processes[i].detached,
|
|
437 ngx_processes[i].respawn,
|
|
438 ngx_processes[i].just_respawn);
|
|
439
|
|
440 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
441 continue;
|
|
442 }
|
|
443
|
|
444 if (ngx_processes[i].just_respawn) {
|
|
445 ngx_processes[i].just_respawn = 0;
|
|
446 continue;
|
|
447 }
|
|
448
|
|
449 if (ngx_processes[i].exiting
|
|
450 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
451 {
|
|
452 continue;
|
|
453 }
|
|
454
|
|
455 if (ch.command) {
|
|
456 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
457 &ch, sizeof(ngx_channel_t), cycle->log) == NGX_OK)
|
|
458 {
|
|
459 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
460 ngx_processes[i].exiting = 1;
|
|
461 }
|
|
462
|
|
463 continue;
|
|
464 }
|
|
465 }
|
|
466
|
|
467 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
468 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
0
|
469
|
|
470 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
471 err = ngx_errno;
|
|
472 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
10
|
473 "kill(%P, %d) failed",
|
0
|
474 ngx_processes[i].pid, signo);
|
|
475
|
|
476 if (err == NGX_ESRCH) {
|
|
477 ngx_processes[i].exited = 1;
|
|
478 ngx_processes[i].exiting = 0;
|
|
479 ngx_reap = 1;
|
|
480 }
|
|
481
|
|
482 continue;
|
|
483 }
|
|
484
|
|
485 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
486 ngx_processes[i].exiting = 1;
|
|
487 }
|
|
488 }
|
|
489 }
|
|
490
|
|
491
|
50
|
492 static ngx_uint_t
|
|
493 ngx_reap_childs(ngx_cycle_t *cycle)
|
0
|
494 {
|
92
|
495 ngx_int_t i, n;
|
|
496 ngx_uint_t live;
|
|
497 ngx_channel_t ch;
|
|
498 ngx_core_conf_t *ccf;
|
0
|
499
|
|
500 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
501 ch.fd = -1;
|
|
502
|
|
503 live = 0;
|
|
504 for (i = 0; i < ngx_last_process; i++) {
|
|
505
|
|
506 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
507 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
0
|
508 i,
|
|
509 ngx_processes[i].pid,
|
|
510 ngx_processes[i].exiting,
|
|
511 ngx_processes[i].exited,
|
|
512 ngx_processes[i].detached,
|
|
513 ngx_processes[i].respawn,
|
|
514 ngx_processes[i].just_respawn);
|
|
515
|
|
516 if (ngx_processes[i].pid == -1) {
|
|
517 continue;
|
|
518 }
|
|
519
|
|
520 if (ngx_processes[i].exited) {
|
|
521
|
|
522 if (!ngx_processes[i].detached) {
|
|
523 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
524
|
|
525 ngx_processes[i].channel[0] = -1;
|
|
526 ngx_processes[i].channel[1] = -1;
|
|
527
|
|
528 ch.pid = ngx_processes[i].pid;
|
|
529 ch.slot = i;
|
|
530
|
|
531 for (n = 0; n < ngx_last_process; n++) {
|
|
532 if (ngx_processes[n].exited
|
|
533 || ngx_processes[n].pid == -1
|
|
534 || ngx_processes[n].channel[0] == -1)
|
|
535 {
|
|
536 continue;
|
|
537 }
|
|
538
|
|
539 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
540 "pass close channel s:%i pid:%P to:%P",
|
|
541 ch.slot, ch.pid, ngx_processes[n].pid);
|
0
|
542
|
|
543 /* TODO: NGX_AGAIN */
|
|
544
|
|
545 ngx_write_channel(ngx_processes[n].channel[0],
|
|
546 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
547 }
|
|
548 }
|
|
549
|
|
550 if (ngx_processes[i].respawn
|
|
551 && !ngx_processes[i].exiting
|
|
552 && !ngx_terminate
|
|
553 && !ngx_quit)
|
|
554 {
|
|
555 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
556 ngx_processes[i].data,
|
|
557 ngx_processes[i].name, i)
|
92
|
558 == NGX_INVALID_PID)
|
0
|
559 {
|
|
560 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
561 "can not respawn %s", ngx_processes[i].name);
|
|
562 continue;
|
|
563 }
|
|
564
|
22
|
565
|
|
566 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
567 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
568 ch.slot = ngx_process_slot;
|
|
569 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
570
|
|
571 for (n = 0; n < ngx_last_process; n++) {
|
|
572
|
|
573 if (n == ngx_process_slot
|
|
574 || ngx_processes[n].pid == -1
|
|
575 || ngx_processes[n].channel[0] == -1)
|
|
576 {
|
|
577 continue;
|
|
578 }
|
|
579
|
|
580 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
581 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
582 ch.slot, ch.pid, ch.fd,
|
|
583 n, ngx_processes[n].pid,
|
|
584 ngx_processes[n].channel[0]);
|
|
585
|
|
586 /* TODO: NGX_AGAIN */
|
|
587
|
|
588 ngx_write_channel(ngx_processes[n].channel[0],
|
|
589 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
590 }
|
|
591
|
0
|
592 live = 1;
|
|
593
|
|
594 continue;
|
|
595 }
|
|
596
|
|
597 if (ngx_processes[i].pid == ngx_new_binary) {
|
92
|
598
|
|
599 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
600 ngx_core_module);
|
|
601
|
|
602 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
603 (char *) ccf->pid.data)
|
|
604 != NGX_OK)
|
|
605 {
|
|
606 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
607 ngx_rename_file_n " %s back to %s failed "
|
|
608 "after the new binary process \"%s\" exited",
|
|
609 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
610 }
|
|
611
|
0
|
612 ngx_new_binary = 0;
|
|
613 if (ngx_noaccepting) {
|
|
614 ngx_restart = 1;
|
|
615 ngx_noaccepting = 0;
|
|
616 }
|
|
617 }
|
|
618
|
|
619 if (i == ngx_last_process - 1) {
|
|
620 ngx_last_process--;
|
|
621
|
|
622 } else {
|
|
623 ngx_processes[i].pid = -1;
|
|
624 }
|
|
625
|
|
626 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
627 live = 1;
|
|
628 }
|
|
629 }
|
|
630
|
|
631 return live;
|
|
632 }
|
|
633
|
|
634
|
50
|
635 static void
|
122
|
636 ngx_master_process_exit(ngx_cycle_t *cycle)
|
0
|
637 {
|
120
|
638 ngx_uint_t i;
|
|
639
|
0
|
640 ngx_delete_pidfile(cycle);
|
|
641
|
26
|
642 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
0
|
643
|
120
|
644 for (i = 0; ngx_modules[i]; i++) {
|
|
645 if (ngx_modules[i]->exit_master) {
|
|
646 ngx_modules[i]->exit_master(cycle);
|
|
647 }
|
|
648 }
|
|
649
|
54
|
650 /*
|
|
651 * we do not destroy cycle->pool here because a signal handler
|
|
652 * that uses cycle->log can be called at this point
|
|
653 */
|
|
654
|
|
655 #if 0
|
0
|
656 ngx_destroy_pool(cycle->pool);
|
54
|
657 #endif
|
0
|
658
|
|
659 exit(0);
|
|
660 }
|
|
661
|
|
662
|
50
|
663 static void
|
|
664 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
0
|
665 {
|
50
|
666 #if (NGX_THREADS)
|
18
|
667 ngx_int_t n;
|
|
668 ngx_err_t err;
|
|
669 ngx_core_conf_t *ccf;
|
50
|
670 #endif
|
18
|
671
|
22
|
672 ngx_worker_process_init(cycle, 1);
|
0
|
673
|
|
674 ngx_setproctitle("worker process");
|
|
675
|
|
676 #if (NGX_THREADS)
|
|
677
|
18
|
678 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
679
|
0
|
680 if (ngx_threads_n) {
|
|
681 if (ngx_init_threads(ngx_threads_n,
|
|
682 ccf->thread_stack_size, cycle) == NGX_ERROR)
|
|
683 {
|
|
684 /* fatal */
|
|
685 exit(2);
|
|
686 }
|
|
687
|
|
688 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
689 if (err != 0) {
|
|
690 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
691 ngx_thread_key_create_n " failed");
|
|
692 /* fatal */
|
|
693 exit(2);
|
|
694 }
|
|
695
|
|
696 for (n = 0; n < ngx_threads_n; n++) {
|
|
697
|
50
|
698 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
699
|
|
700 if (ngx_threads[n].cv == NULL) {
|
0
|
701 /* fatal */
|
|
702 exit(2);
|
|
703 }
|
|
704
|
|
705 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
706 ngx_worker_thread_cycle,
|
|
707 (void *) &ngx_threads[n], cycle->log) != 0)
|
|
708 {
|
|
709 /* fatal */
|
|
710 exit(2);
|
|
711 }
|
|
712 }
|
|
713 }
|
|
714
|
|
715 #endif
|
|
716
|
|
717 for ( ;; ) {
|
|
718 if (ngx_exiting
|
108
|
719 && ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
0
|
720 {
|
26
|
721 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
0
|
722
|
122
|
723 ngx_worker_process_exit(cycle);
|
0
|
724 }
|
|
725
|
|
726 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
727
|
112
|
728 ngx_process_events_and_timers(cycle);
|
0
|
729
|
|
730 if (ngx_terminate) {
|
26
|
731 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
0
|
732
|
122
|
733 ngx_worker_process_exit(cycle);
|
0
|
734 }
|
|
735
|
|
736 if (ngx_quit) {
|
|
737 ngx_quit = 0;
|
26
|
738 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
0
|
739 "gracefully shutting down");
|
|
740 ngx_setproctitle("worker process is shutting down");
|
|
741
|
|
742 if (!ngx_exiting) {
|
|
743 ngx_close_listening_sockets(cycle);
|
|
744 ngx_exiting = 1;
|
|
745 }
|
|
746 }
|
|
747
|
|
748 if (ngx_reopen) {
|
|
749 ngx_reopen = 0;
|
26
|
750 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
0
|
751 ngx_reopen_files(cycle, -1);
|
|
752 }
|
|
753 }
|
|
754 }
|
|
755
|
|
756
|
50
|
757 static void
|
|
758 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
16
|
759 {
|
|
760 sigset_t set;
|
|
761 ngx_int_t n;
|
|
762 ngx_uint_t i;
|
92
|
763 struct rlimit rlmt;
|
16
|
764 ngx_core_conf_t *ccf;
|
|
765 ngx_listening_t *ls;
|
|
766
|
|
767 ngx_process = NGX_PROCESS_WORKER;
|
|
768
|
|
769 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
770
|
|
771 if (geteuid() == 0) {
|
22
|
772 if (priority && ccf->priority != 0) {
|
|
773 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
774 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
775 "setpriority(%d) failed", ccf->priority);
|
|
776 }
|
|
777 }
|
|
778
|
92
|
779 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
780 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
781 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
782
|
|
783 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
784 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
785 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
786 ccf->rlimit_nofile);
|
|
787 }
|
|
788 }
|
|
789
|
138
|
790 if (ccf->rlimit_core != NGX_CONF_UNSET) {
|
|
791 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
792 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
793
|
|
794 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
795 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
796 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
797 ccf->rlimit_core);
|
|
798 }
|
|
799 }
|
|
800
|
92
|
801 #ifdef RLIMIT_SIGPENDING
|
|
802 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
803 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
804 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
805
|
|
806 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
807 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
808 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
809 ccf->rlimit_sigpending);
|
|
810 }
|
|
811 }
|
|
812 #endif
|
|
813
|
16
|
814 if (setgid(ccf->group) == -1) {
|
|
815 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
816 "setgid(%d) failed", ccf->group);
|
|
817 /* fatal */
|
|
818 exit(2);
|
|
819 }
|
|
820
|
22
|
821 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
822 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
823 "initgroups(%s, %d) failed",
|
|
824 ccf->username, ccf->group);
|
|
825 }
|
|
826
|
16
|
827 if (setuid(ccf->user) == -1) {
|
|
828 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
829 "setuid(%d) failed", ccf->user);
|
|
830 /* fatal */
|
|
831 exit(2);
|
|
832 }
|
|
833 }
|
|
834
|
126
|
835 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
836
|
|
837 if (cpu_affinity) {
|
|
838 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
839 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
840
|
|
841 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
842 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
843 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
844 }
|
|
845 }
|
|
846
|
|
847 #endif
|
|
848
|
16
|
849 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
850
|
|
851 /* allow coredump after setuid() in Linux 2.4.x */
|
|
852
|
|
853 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
854 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
855 "prctl(PR_SET_DUMPABLE) failed");
|
|
856 }
|
|
857
|
|
858 #endif
|
|
859
|
70
|
860 if (ccf->working_directory.len) {
|
72
|
861 if (chdir((char *) ccf->working_directory.data) == -1) {
|
70
|
862 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
863 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
864 /* fatal */
|
|
865 exit(2);
|
|
866 }
|
|
867 }
|
|
868
|
16
|
869 sigemptyset(&set);
|
|
870
|
|
871 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
872 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
873 "sigprocmask() failed");
|
|
874 }
|
|
875
|
|
876 ngx_init_temp_number();
|
|
877
|
|
878 /*
|
|
879 * disable deleting previous events for the listening sockets because
|
|
880 * in the worker processes there are no events at all at this point
|
126
|
881 */
|
16
|
882 ls = cycle->listening.elts;
|
|
883 for (i = 0; i < cycle->listening.nelts; i++) {
|
92
|
884 ls[i].previous = NULL;
|
16
|
885 }
|
|
886
|
|
887 for (i = 0; ngx_modules[i]; i++) {
|
|
888 if (ngx_modules[i]->init_process) {
|
|
889 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
890 /* fatal */
|
|
891 exit(2);
|
|
892 }
|
|
893 }
|
|
894 }
|
|
895
|
|
896 for (n = 0; n < ngx_last_process; n++) {
|
|
897
|
|
898 if (ngx_processes[n].pid == -1) {
|
|
899 continue;
|
|
900 }
|
|
901
|
|
902 if (n == ngx_process_slot) {
|
|
903 continue;
|
|
904 }
|
|
905
|
|
906 if (ngx_processes[n].channel[1] == -1) {
|
|
907 continue;
|
|
908 }
|
|
909
|
|
910 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
911 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
912 "close() channel failed");
|
|
913 }
|
|
914 }
|
|
915
|
|
916 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
917 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
918 "close() channel failed");
|
|
919 }
|
|
920
|
|
921 #if 0
|
|
922 ngx_last_process = 0;
|
|
923 #endif
|
|
924
|
|
925 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
84
|
926 ngx_channel_handler) == NGX_ERROR)
|
16
|
927 {
|
|
928 /* fatal */
|
|
929 exit(2);
|
|
930 }
|
|
931 }
|
|
932
|
|
933
|
50
|
934 static void
|
122
|
935 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
936 {
|
|
937 ngx_uint_t i;
|
|
938 ngx_connection_t *c;
|
|
939
|
|
940 #if (NGX_THREADS)
|
|
941 ngx_terminate = 1;
|
|
942
|
|
943 ngx_wakeup_worker_threads(cycle);
|
|
944 #endif
|
|
945
|
|
946 for (i = 0; ngx_modules[i]; i++) {
|
|
947 if (ngx_modules[i]->exit_process) {
|
|
948 ngx_modules[i]->exit_process(cycle);
|
|
949 }
|
|
950 }
|
|
951
|
136
|
952 if (ngx_quit) {
|
|
953 c = cycle->connections;
|
|
954 for (i = 0; i < cycle->connection_n; i++) {
|
|
955 if (c[i].fd != -1
|
|
956 && c[i].read
|
|
957 && !c[i].read->accept
|
|
958 && !c[i].read->channel)
|
|
959 {
|
|
960 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
961 "open socket #%d left in %ui connection, "
|
|
962 "aborting",
|
|
963 c[i].fd, i);
|
|
964 ngx_debug_point();
|
|
965 }
|
122
|
966 }
|
|
967
|
136
|
968 if (ngx_debug_quit) {
|
|
969 ngx_debug_point();
|
|
970 }
|
122
|
971 }
|
|
972
|
|
973 /*
|
|
974 * we do not destroy cycle->pool here because a signal handler
|
|
975 * that uses cycle->log can be called at this point
|
|
976 */
|
|
977
|
|
978 #if 0
|
|
979 ngx_destroy_pool(cycle->pool);
|
|
980 #endif
|
|
981
|
|
982 exit(0);
|
|
983 }
|
|
984
|
|
985
|
|
986 static void
|
50
|
987 ngx_channel_handler(ngx_event_t *ev)
|
0
|
988 {
|
|
989 ngx_int_t n;
|
92
|
990 ngx_socket_t fd;
|
0
|
991 ngx_channel_t ch;
|
|
992 ngx_connection_t *c;
|
|
993
|
16
|
994 if (ev->timedout) {
|
|
995 ev->timedout = 0;
|
|
996 return;
|
|
997 }
|
|
998
|
0
|
999 c = ev->data;
|
|
1000
|
|
1001 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
1002
|
|
1003 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
1004
|
10
|
1005 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
0
|
1006
|
10
|
1007 if (n == NGX_ERROR) {
|
92
|
1008
|
|
1009 ngx_free_connection(c);
|
|
1010
|
|
1011 fd = c->fd;
|
|
1012 c->fd = (ngx_socket_t) -1;
|
|
1013
|
|
1014 if (close(fd) == -1) {
|
10
|
1015 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
1016 "close() channel failed");
|
|
1017 }
|
|
1018
|
|
1019 return;
|
|
1020 }
|
|
1021
|
|
1022 if (n == NGX_AGAIN) {
|
0
|
1023 return;
|
|
1024 }
|
|
1025
|
|
1026 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
1027 "channel command: %d", ch.command);
|
|
1028
|
|
1029 switch (ch.command) {
|
|
1030
|
|
1031 case NGX_CMD_QUIT:
|
|
1032 ngx_quit = 1;
|
|
1033 break;
|
|
1034
|
|
1035 case NGX_CMD_TERMINATE:
|
|
1036 ngx_terminate = 1;
|
|
1037 break;
|
|
1038
|
|
1039 case NGX_CMD_REOPEN:
|
|
1040 ngx_reopen = 1;
|
|
1041 break;
|
|
1042
|
|
1043 case NGX_CMD_OPEN_CHANNEL:
|
|
1044
|
|
1045 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
10
|
1046 "get channel s:%i pid:%P fd:%d", ch.slot, ch.pid, ch.fd);
|
0
|
1047
|
|
1048 ngx_processes[ch.slot].pid = ch.pid;
|
|
1049 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
1050 break;
|
|
1051
|
|
1052 case NGX_CMD_CLOSE_CHANNEL:
|
|
1053
|
|
1054 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
10
|
1055 "close channel s:%i pid:%P our:%P fd:%d",
|
0
|
1056 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
1057 ngx_processes[ch.slot].channel[0]);
|
|
1058
|
|
1059 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
16
|
1060 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
1061 "close() channel failed");
|
0
|
1062 }
|
|
1063
|
|
1064 ngx_processes[ch.slot].channel[0] = -1;
|
|
1065 break;
|
|
1066 }
|
|
1067 }
|
|
1068
|
|
1069
|
|
1070 #if (NGX_THREADS)
|
|
1071
|
50
|
1072 static void
|
|
1073 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
0
|
1074 {
|
|
1075 ngx_int_t i;
|
|
1076 ngx_uint_t live;
|
|
1077
|
|
1078 for ( ;; ) {
|
|
1079
|
|
1080 live = 0;
|
|
1081
|
|
1082 for (i = 0; i < ngx_threads_n; i++) {
|
|
1083 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
18
|
1084 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
1085 ngx_threads[i].state = NGX_THREAD_DONE;
|
0
|
1086
|
|
1087 } else {
|
|
1088 live = 1;
|
|
1089 }
|
|
1090 }
|
|
1091
|
|
1092 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
1093 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
1094 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
1095 }
|
|
1096 }
|
|
1097
|
|
1098 if (live == 0) {
|
|
1099 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
1100 "all worker threads are joined");
|
|
1101
|
|
1102 /* STUB */
|
|
1103 ngx_done_events(cycle);
|
|
1104 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
1105 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
1106
|
|
1107 return;
|
|
1108 }
|
|
1109
|
|
1110 ngx_sched_yield();
|
|
1111 }
|
|
1112 }
|
|
1113
|
|
1114
|
112
|
1115 static ngx_thread_value_t
|
50
|
1116 ngx_worker_thread_cycle(void *data)
|
0
|
1117 {
|
|
1118 ngx_thread_t *thr = data;
|
|
1119
|
|
1120 sigset_t set;
|
|
1121 ngx_err_t err;
|
|
1122 ngx_core_tls_t *tls;
|
|
1123 ngx_cycle_t *cycle;
|
|
1124
|
|
1125 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
1126
|
|
1127 sigemptyset(&set);
|
|
1128 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
1129 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
1130 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
1131
|
|
1132 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
1133 if (err) {
|
|
1134 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
1135 ngx_thread_sigmask_n " failed");
|
112
|
1136 return (ngx_thread_value_t) 1;
|
0
|
1137 }
|
|
1138
|
|
1139 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
1140 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
0
|
1141
|
|
1142 ngx_setthrtitle("worker thread");
|
|
1143
|
50
|
1144 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
1145 if (tls == NULL) {
|
112
|
1146 return (ngx_thread_value_t) 1;
|
0
|
1147 }
|
|
1148
|
|
1149 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
1150 if (err != 0) {
|
|
1151 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
1152 ngx_thread_set_tls_n " failed");
|
112
|
1153 return (ngx_thread_value_t) 1;
|
0
|
1154 }
|
|
1155
|
112
|
1156 ngx_mutex_lock(ngx_posted_events_mutex);
|
0
|
1157
|
|
1158 for ( ;; ) {
|
|
1159 thr->state = NGX_THREAD_FREE;
|
|
1160
|
|
1161 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
112
|
1162 return (ngx_thread_value_t) 1;
|
0
|
1163 }
|
|
1164
|
|
1165 if (ngx_terminate) {
|
|
1166 thr->state = NGX_THREAD_EXIT;
|
|
1167
|
|
1168 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
1169
|
|
1170 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
10
|
1171 "thread " NGX_TID_T_FMT " is done",
|
|
1172 ngx_thread_self());
|
0
|
1173
|
112
|
1174 return (ngx_thread_value_t) 0;
|
0
|
1175 }
|
|
1176
|
|
1177 thr->state = NGX_THREAD_BUSY;
|
|
1178
|
|
1179 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
112
|
1180 return (ngx_thread_value_t) 1;
|
0
|
1181 }
|
|
1182
|
|
1183 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
112
|
1184 return (ngx_thread_value_t) 1;
|
0
|
1185 }
|
|
1186
|
|
1187 if (ngx_process_changes) {
|
|
1188 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
112
|
1189 return (ngx_thread_value_t) 1;
|
0
|
1190 }
|
|
1191 }
|
|
1192 }
|
|
1193 }
|
|
1194
|
|
1195 #endif
|
16
|
1196
|
|
1197
|
50
|
1198 #if 0
|
|
1199
|
|
1200 static void
|
|
1201 ngx_garbage_collector_cycle(ngx_cycle_t *cycle, void *data)
|
16
|
1202 {
|
|
1203 ngx_uint_t i;
|
|
1204 ngx_gc_t ctx;
|
|
1205 ngx_path_t **path;
|
|
1206 ngx_event_t *ev;
|
|
1207
|
22
|
1208 ngx_worker_process_init(cycle, 0);
|
16
|
1209
|
92
|
1210 ev = &cycle->read_events0[ngx_channel];
|
16
|
1211
|
|
1212 ngx_accept_mutex = NULL;
|
|
1213
|
|
1214 ngx_setproctitle("garbage collector");
|
|
1215
|
|
1216 #if 0
|
|
1217 ngx_add_timer(ev, 60 * 1000);
|
|
1218 #endif
|
|
1219
|
|
1220 for ( ;; ) {
|
|
1221
|
|
1222 if (ngx_terminate || ngx_quit) {
|
26
|
1223 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
16
|
1224 exit(0);
|
|
1225 }
|
|
1226
|
|
1227 if (ngx_reopen) {
|
|
1228 ngx_reopen = 0;
|
26
|
1229 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
16
|
1230 ngx_reopen_files(cycle, -1);
|
|
1231 }
|
|
1232
|
|
1233 path = cycle->pathes.elts;
|
|
1234 for (i = 0; i < cycle->pathes.nelts; i++) {
|
|
1235 ctx.path = path[i];
|
|
1236 ctx.log = cycle->log;
|
28
|
1237 ctx.handler = path[i]->cleaner;
|
16
|
1238
|
|
1239 ngx_collect_garbage(&ctx, &path[i]->name, 0);
|
|
1240 }
|
|
1241
|
|
1242 ngx_add_timer(ev, 60 * 60 * 1000);
|
|
1243
|
112
|
1244 ngx_process_events_and_timers(cycle);
|
16
|
1245 }
|
|
1246 }
|
50
|
1247
|
|
1248 #endif
|