|
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);
|
|
468
|
15 static void ngx_start_cache_manager_process(ngx_cycle_t *cycle, ngx_int_t type);
|
|
0
|
16 static void ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo);
|
|
340
|
17 static ngx_uint_t ngx_reap_children(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
|
|
468
|
27 static void ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data);
|
|
|
28 static void ngx_cache_manager_process_handler(ngx_event_t *ev);
|
|
0
|
29
|
|
|
30
|
|
|
31 ngx_uint_t ngx_process;
|
|
|
32 ngx_pid_t ngx_pid;
|
|
|
33 ngx_uint_t ngx_threaded;
|
|
|
34
|
|
|
35 sig_atomic_t ngx_reap;
|
|
|
36 sig_atomic_t ngx_sigio;
|
|
|
37 sig_atomic_t ngx_terminate;
|
|
|
38 sig_atomic_t ngx_quit;
|
|
26
|
39 sig_atomic_t ngx_debug_quit;
|
|
0
|
40 ngx_uint_t ngx_exiting;
|
|
|
41 sig_atomic_t ngx_reconfigure;
|
|
|
42 sig_atomic_t ngx_reopen;
|
|
|
43
|
|
|
44 sig_atomic_t ngx_change_binary;
|
|
|
45 ngx_pid_t ngx_new_binary;
|
|
|
46 ngx_uint_t ngx_inherited;
|
|
|
47 ngx_uint_t ngx_daemonized;
|
|
|
48
|
|
|
49 sig_atomic_t ngx_noaccept;
|
|
|
50 ngx_uint_t ngx_noaccepting;
|
|
|
51 ngx_uint_t ngx_restart;
|
|
|
52
|
|
|
53
|
|
|
54 #if (NGX_THREADS)
|
|
|
55 volatile ngx_thread_t ngx_threads[NGX_MAX_THREADS];
|
|
|
56 ngx_int_t ngx_threads_n;
|
|
|
57 #endif
|
|
|
58
|
|
|
59
|
|
126
|
60 u_long cpu_affinity;
|
|
|
61 static u_char master_process[] = "master process";
|
|
0
|
62
|
|
|
63
|
|
332
|
64 static ngx_cycle_t ngx_exit_cycle;
|
|
|
65 static ngx_log_t ngx_exit_log;
|
|
|
66 static ngx_open_file_t ngx_exit_log_file;
|
|
|
67
|
|
|
68
|
|
50
|
69 void
|
|
|
70 ngx_master_process_cycle(ngx_cycle_t *cycle)
|
|
0
|
71 {
|
|
|
72 char *title;
|
|
|
73 u_char *p;
|
|
|
74 size_t size;
|
|
|
75 ngx_int_t i;
|
|
80
|
76 ngx_uint_t n;
|
|
0
|
77 sigset_t set;
|
|
|
78 struct itimerval itv;
|
|
|
79 ngx_uint_t live;
|
|
|
80 ngx_msec_t delay;
|
|
80
|
81 ngx_listening_t *ls;
|
|
0
|
82 ngx_core_conf_t *ccf;
|
|
|
83
|
|
|
84 sigemptyset(&set);
|
|
|
85 sigaddset(&set, SIGCHLD);
|
|
|
86 sigaddset(&set, SIGALRM);
|
|
|
87 sigaddset(&set, SIGIO);
|
|
|
88 sigaddset(&set, SIGINT);
|
|
|
89 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
90 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
91 sigaddset(&set, ngx_signal_value(NGX_NOACCEPT_SIGNAL));
|
|
|
92 sigaddset(&set, ngx_signal_value(NGX_TERMINATE_SIGNAL));
|
|
|
93 sigaddset(&set, ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
|
94 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
95
|
|
|
96 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) {
|
|
|
97 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
98 "sigprocmask() failed");
|
|
|
99 }
|
|
|
100
|
|
|
101 sigemptyset(&set);
|
|
|
102
|
|
|
103
|
|
|
104 size = sizeof(master_process);
|
|
|
105
|
|
2
|
106 for (i = 0; i < ngx_argc; i++) {
|
|
|
107 size += ngx_strlen(ngx_argv[i]) + 1;
|
|
0
|
108 }
|
|
|
109
|
|
382
|
110 title = ngx_pnalloc(cycle->pool, size);
|
|
0
|
111
|
|
|
112 p = ngx_cpymem(title, master_process, sizeof(master_process) - 1);
|
|
2
|
113 for (i = 0; i < ngx_argc; i++) {
|
|
0
|
114 *p++ = ' ';
|
|
2
|
115 p = ngx_cpystrn(p, (u_char *) ngx_argv[i], size);
|
|
0
|
116 }
|
|
|
117
|
|
|
118 ngx_setproctitle(title);
|
|
|
119
|
|
|
120
|
|
|
121 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
122
|
|
|
123 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
|
124 NGX_PROCESS_RESPAWN);
|
|
468
|
125 ngx_start_cache_manager_process(cycle, NGX_PROCESS_RESPAWN);
|
|
0
|
126
|
|
|
127 ngx_new_binary = 0;
|
|
|
128 delay = 0;
|
|
|
129 live = 1;
|
|
|
130
|
|
|
131 for ( ;; ) {
|
|
|
132 if (delay) {
|
|
|
133 delay *= 2;
|
|
|
134
|
|
|
135 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
136 "temination cycle: %d", delay);
|
|
|
137
|
|
|
138 itv.it_interval.tv_sec = 0;
|
|
|
139 itv.it_interval.tv_usec = 0;
|
|
|
140 itv.it_value.tv_sec = delay / 1000;
|
|
|
141 itv.it_value.tv_usec = (delay % 1000 ) * 1000;
|
|
|
142
|
|
|
143 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
144 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
145 "setitimer() failed");
|
|
|
146 }
|
|
|
147 }
|
|
|
148
|
|
|
149 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "sigsuspend");
|
|
|
150
|
|
|
151 sigsuspend(&set);
|
|
|
152
|
|
112
|
153 ngx_time_update(0, 0);
|
|
0
|
154
|
|
|
155 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "wake up");
|
|
|
156
|
|
|
157 if (ngx_reap) {
|
|
|
158 ngx_reap = 0;
|
|
340
|
159 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "reap children");
|
|
0
|
160
|
|
340
|
161 live = ngx_reap_children(cycle);
|
|
0
|
162 }
|
|
|
163
|
|
|
164 if (!live && (ngx_terminate || ngx_quit)) {
|
|
122
|
165 ngx_master_process_exit(cycle);
|
|
0
|
166 }
|
|
|
167
|
|
|
168 if (ngx_terminate) {
|
|
|
169 if (delay == 0) {
|
|
|
170 delay = 50;
|
|
|
171 }
|
|
|
172
|
|
|
173 if (delay > 1000) {
|
|
|
174 ngx_signal_worker_processes(cycle, SIGKILL);
|
|
|
175 } else {
|
|
|
176 ngx_signal_worker_processes(cycle,
|
|
|
177 ngx_signal_value(NGX_TERMINATE_SIGNAL));
|
|
|
178 }
|
|
|
179
|
|
|
180 continue;
|
|
|
181 }
|
|
|
182
|
|
|
183 if (ngx_quit) {
|
|
|
184 ngx_signal_worker_processes(cycle,
|
|
|
185 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
80
|
186
|
|
|
187 ls = cycle->listening.elts;
|
|
|
188 for (n = 0; n < cycle->listening.nelts; n++) {
|
|
|
189 if (ngx_close_socket(ls[n].fd) == -1) {
|
|
|
190 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno,
|
|
|
191 ngx_close_socket_n " %V failed",
|
|
|
192 &ls[n].addr_text);
|
|
|
193 }
|
|
|
194 }
|
|
|
195 cycle->listening.nelts = 0;
|
|
|
196
|
|
0
|
197 continue;
|
|
|
198 }
|
|
|
199
|
|
|
200 if (ngx_reconfigure) {
|
|
|
201 ngx_reconfigure = 0;
|
|
|
202
|
|
|
203 if (ngx_new_binary) {
|
|
|
204 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
|
205 NGX_PROCESS_RESPAWN);
|
|
468
|
206 ngx_start_cache_manager_process(cycle, NGX_PROCESS_RESPAWN);
|
|
0
|
207 ngx_noaccepting = 0;
|
|
|
208
|
|
|
209 continue;
|
|
|
210 }
|
|
|
211
|
|
26
|
212 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
|
|
0
|
213
|
|
|
214 cycle = ngx_init_cycle(cycle);
|
|
|
215 if (cycle == NULL) {
|
|
|
216 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
217 continue;
|
|
|
218 }
|
|
|
219
|
|
|
220 ngx_cycle = cycle;
|
|
|
221 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
222 ngx_core_module);
|
|
|
223 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
|
224 NGX_PROCESS_JUST_RESPAWN);
|
|
468
|
225 ngx_start_cache_manager_process(cycle, NGX_PROCESS_JUST_RESPAWN);
|
|
0
|
226 live = 1;
|
|
|
227 ngx_signal_worker_processes(cycle,
|
|
|
228 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
|
229 }
|
|
|
230
|
|
|
231 if (ngx_restart) {
|
|
|
232 ngx_restart = 0;
|
|
|
233 ngx_start_worker_processes(cycle, ccf->worker_processes,
|
|
|
234 NGX_PROCESS_RESPAWN);
|
|
468
|
235 ngx_start_cache_manager_process(cycle, NGX_PROCESS_RESPAWN);
|
|
0
|
236 live = 1;
|
|
|
237 }
|
|
|
238
|
|
|
239 if (ngx_reopen) {
|
|
|
240 ngx_reopen = 0;
|
|
26
|
241 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
242 ngx_reopen_files(cycle, ccf->user);
|
|
|
243 ngx_signal_worker_processes(cycle,
|
|
|
244 ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
245 }
|
|
|
246
|
|
|
247 if (ngx_change_binary) {
|
|
|
248 ngx_change_binary = 0;
|
|
26
|
249 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "changing binary");
|
|
2
|
250 ngx_new_binary = ngx_exec_new_binary(cycle, ngx_argv);
|
|
0
|
251 }
|
|
|
252
|
|
|
253 if (ngx_noaccept) {
|
|
|
254 ngx_noaccept = 0;
|
|
|
255 ngx_noaccepting = 1;
|
|
|
256 ngx_signal_worker_processes(cycle,
|
|
|
257 ngx_signal_value(NGX_SHUTDOWN_SIGNAL));
|
|
|
258 }
|
|
|
259 }
|
|
|
260 }
|
|
|
261
|
|
|
262
|
|
50
|
263 void
|
|
|
264 ngx_single_process_cycle(ngx_cycle_t *cycle)
|
|
0
|
265 {
|
|
|
266 ngx_uint_t i;
|
|
|
267
|
|
|
268 ngx_init_temp_number();
|
|
|
269
|
|
|
270 for (i = 0; ngx_modules[i]; i++) {
|
|
|
271 if (ngx_modules[i]->init_process) {
|
|
|
272 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
273 /* fatal */
|
|
|
274 exit(2);
|
|
|
275 }
|
|
|
276 }
|
|
|
277 }
|
|
|
278
|
|
|
279 for ( ;; ) {
|
|
|
280 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
281
|
|
112
|
282 ngx_process_events_and_timers(cycle);
|
|
0
|
283
|
|
|
284 if (ngx_terminate || ngx_quit) {
|
|
120
|
285
|
|
|
286 for (i = 0; ngx_modules[i]; i++) {
|
|
|
287 if (ngx_modules[i]->exit_process) {
|
|
|
288 ngx_modules[i]->exit_process(cycle);
|
|
|
289 }
|
|
|
290 }
|
|
|
291
|
|
122
|
292 ngx_master_process_exit(cycle);
|
|
0
|
293 }
|
|
|
294
|
|
|
295 if (ngx_reconfigure) {
|
|
|
296 ngx_reconfigure = 0;
|
|
26
|
297 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
|
|
0
|
298
|
|
|
299 cycle = ngx_init_cycle(cycle);
|
|
|
300 if (cycle == NULL) {
|
|
|
301 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
302 continue;
|
|
|
303 }
|
|
|
304
|
|
|
305 ngx_cycle = cycle;
|
|
|
306 }
|
|
|
307
|
|
|
308 if (ngx_reopen) {
|
|
|
309 ngx_reopen = 0;
|
|
26
|
310 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
311 ngx_reopen_files(cycle, (ngx_uid_t) -1);
|
|
|
312 }
|
|
|
313 }
|
|
|
314 }
|
|
|
315
|
|
|
316
|
|
50
|
317 static void
|
|
|
318 ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t n, ngx_int_t type)
|
|
0
|
319 {
|
|
126
|
320 ngx_int_t i, s;
|
|
106
|
321 ngx_channel_t ch;
|
|
0
|
322
|
|
26
|
323 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes");
|
|
0
|
324
|
|
|
325 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
326
|
|
126
|
327 for (i = 0; i < n; i++) {
|
|
|
328
|
|
|
329 cpu_affinity = ngx_get_cpu_affinity(i);
|
|
|
330
|
|
0
|
331 ngx_spawn_process(cycle, ngx_worker_process_cycle, NULL,
|
|
|
332 "worker process", type);
|
|
|
333
|
|
|
334 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
335 ch.slot = ngx_process_slot;
|
|
|
336 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
337
|
|
126
|
338 for (s = 0; s < ngx_last_process; s++) {
|
|
0
|
339
|
|
126
|
340 if (s == ngx_process_slot
|
|
|
341 || ngx_processes[s].pid == -1
|
|
|
342 || ngx_processes[s].channel[0] == -1)
|
|
0
|
343 {
|
|
|
344 continue;
|
|
|
345 }
|
|
|
346
|
|
|
347 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
348 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
349 ch.slot, ch.pid, ch.fd,
|
|
126
|
350 s, ngx_processes[s].pid,
|
|
|
351 ngx_processes[s].channel[0]);
|
|
0
|
352
|
|
|
353 /* TODO: NGX_AGAIN */
|
|
|
354
|
|
126
|
355 ngx_write_channel(ngx_processes[s].channel[0],
|
|
0
|
356 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
357 }
|
|
|
358 }
|
|
|
359 }
|
|
|
360
|
|
|
361
|
|
50
|
362 static void
|
|
468
|
363 ngx_start_cache_manager_process(ngx_cycle_t *cycle, ngx_int_t type)
|
|
16
|
364 {
|
|
464
|
365 ngx_int_t i;
|
|
|
366 ngx_uint_t n;
|
|
|
367 ngx_path_t **path;
|
|
|
368 ngx_channel_t ch;
|
|
16
|
369
|
|
464
|
370 path = ngx_cycle->pathes.elts;
|
|
|
371 for (n = 0; n < ngx_cycle->pathes.nelts; n++) {
|
|
468
|
372 if (path[n]->manager) {
|
|
464
|
373 goto start;
|
|
|
374 }
|
|
|
375 }
|
|
|
376
|
|
|
377 return;
|
|
|
378
|
|
|
379 start:
|
|
16
|
380
|
|
|
381 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
382
|
|
468
|
383 ngx_spawn_process(cycle, ngx_cache_manager_process_cycle, NULL,
|
|
|
384 "cache manager process", type);
|
|
16
|
385
|
|
|
386 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
387 ch.slot = ngx_process_slot;
|
|
|
388 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
389
|
|
|
390 for (i = 0; i < ngx_last_process; i++) {
|
|
|
391
|
|
|
392 if (i == ngx_process_slot
|
|
|
393 || ngx_processes[i].pid == -1
|
|
|
394 || ngx_processes[i].channel[0] == -1)
|
|
|
395 {
|
|
|
396 continue;
|
|
|
397 }
|
|
|
398
|
|
|
399 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
400 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
401 ch.slot, ch.pid, ch.fd,
|
|
|
402 i, ngx_processes[i].pid,
|
|
|
403 ngx_processes[i].channel[0]);
|
|
|
404
|
|
|
405 /* TODO: NGX_AGAIN */
|
|
|
406
|
|
|
407 ngx_write_channel(ngx_processes[i].channel[0],
|
|
|
408 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
409 }
|
|
|
410 }
|
|
|
411
|
|
|
412
|
|
50
|
413 static void
|
|
|
414 ngx_signal_worker_processes(ngx_cycle_t *cycle, int signo)
|
|
0
|
415 {
|
|
|
416 ngx_int_t i;
|
|
|
417 ngx_err_t err;
|
|
|
418 ngx_channel_t ch;
|
|
|
419
|
|
342
|
420 #if (NGX_BROKEN_SCM_RIGHTS)
|
|
|
421
|
|
|
422 ch.command = 0;
|
|
|
423
|
|
|
424 #else
|
|
|
425
|
|
0
|
426 switch (signo) {
|
|
|
427
|
|
|
428 case ngx_signal_value(NGX_SHUTDOWN_SIGNAL):
|
|
|
429 ch.command = NGX_CMD_QUIT;
|
|
|
430 break;
|
|
|
431
|
|
|
432 case ngx_signal_value(NGX_TERMINATE_SIGNAL):
|
|
|
433 ch.command = NGX_CMD_TERMINATE;
|
|
|
434 break;
|
|
|
435
|
|
|
436 case ngx_signal_value(NGX_REOPEN_SIGNAL):
|
|
|
437 ch.command = NGX_CMD_REOPEN;
|
|
|
438 break;
|
|
|
439
|
|
|
440 default:
|
|
|
441 ch.command = 0;
|
|
|
442 }
|
|
|
443
|
|
342
|
444 #endif
|
|
|
445
|
|
0
|
446 ch.fd = -1;
|
|
|
447
|
|
|
448
|
|
|
449 for (i = 0; i < ngx_last_process; i++) {
|
|
|
450
|
|
|
451 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
452 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
453 i,
|
|
|
454 ngx_processes[i].pid,
|
|
|
455 ngx_processes[i].exiting,
|
|
|
456 ngx_processes[i].exited,
|
|
|
457 ngx_processes[i].detached,
|
|
|
458 ngx_processes[i].respawn,
|
|
|
459 ngx_processes[i].just_respawn);
|
|
|
460
|
|
|
461 if (ngx_processes[i].detached || ngx_processes[i].pid == -1) {
|
|
|
462 continue;
|
|
|
463 }
|
|
|
464
|
|
|
465 if (ngx_processes[i].just_respawn) {
|
|
|
466 ngx_processes[i].just_respawn = 0;
|
|
|
467 continue;
|
|
|
468 }
|
|
|
469
|
|
|
470 if (ngx_processes[i].exiting
|
|
|
471 && signo == ngx_signal_value(NGX_SHUTDOWN_SIGNAL))
|
|
|
472 {
|
|
|
473 continue;
|
|
|
474 }
|
|
|
475
|
|
|
476 if (ch.command) {
|
|
|
477 if (ngx_write_channel(ngx_processes[i].channel[0],
|
|
290
|
478 &ch, sizeof(ngx_channel_t), cycle->log)
|
|
|
479 == NGX_OK)
|
|
0
|
480 {
|
|
|
481 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
482 ngx_processes[i].exiting = 1;
|
|
|
483 }
|
|
|
484
|
|
|
485 continue;
|
|
|
486 }
|
|
|
487 }
|
|
|
488
|
|
|
489 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
490 "kill (%P, %d)" , ngx_processes[i].pid, signo);
|
|
0
|
491
|
|
|
492 if (kill(ngx_processes[i].pid, signo) == -1) {
|
|
|
493 err = ngx_errno;
|
|
|
494 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
10
|
495 "kill(%P, %d) failed",
|
|
0
|
496 ngx_processes[i].pid, signo);
|
|
|
497
|
|
|
498 if (err == NGX_ESRCH) {
|
|
|
499 ngx_processes[i].exited = 1;
|
|
|
500 ngx_processes[i].exiting = 0;
|
|
|
501 ngx_reap = 1;
|
|
|
502 }
|
|
|
503
|
|
|
504 continue;
|
|
|
505 }
|
|
|
506
|
|
|
507 if (signo != ngx_signal_value(NGX_REOPEN_SIGNAL)) {
|
|
|
508 ngx_processes[i].exiting = 1;
|
|
|
509 }
|
|
|
510 }
|
|
|
511 }
|
|
|
512
|
|
|
513
|
|
50
|
514 static ngx_uint_t
|
|
340
|
515 ngx_reap_children(ngx_cycle_t *cycle)
|
|
0
|
516 {
|
|
92
|
517 ngx_int_t i, n;
|
|
|
518 ngx_uint_t live;
|
|
|
519 ngx_channel_t ch;
|
|
|
520 ngx_core_conf_t *ccf;
|
|
0
|
521
|
|
|
522 ch.command = NGX_CMD_CLOSE_CHANNEL;
|
|
|
523 ch.fd = -1;
|
|
|
524
|
|
|
525 live = 0;
|
|
|
526 for (i = 0; i < ngx_last_process; i++) {
|
|
|
527
|
|
|
528 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
529 "child: %d %P e:%d t:%d d:%d r:%d j:%d",
|
|
0
|
530 i,
|
|
|
531 ngx_processes[i].pid,
|
|
|
532 ngx_processes[i].exiting,
|
|
|
533 ngx_processes[i].exited,
|
|
|
534 ngx_processes[i].detached,
|
|
|
535 ngx_processes[i].respawn,
|
|
|
536 ngx_processes[i].just_respawn);
|
|
|
537
|
|
|
538 if (ngx_processes[i].pid == -1) {
|
|
|
539 continue;
|
|
|
540 }
|
|
|
541
|
|
|
542 if (ngx_processes[i].exited) {
|
|
|
543
|
|
|
544 if (!ngx_processes[i].detached) {
|
|
|
545 ngx_close_channel(ngx_processes[i].channel, cycle->log);
|
|
|
546
|
|
|
547 ngx_processes[i].channel[0] = -1;
|
|
|
548 ngx_processes[i].channel[1] = -1;
|
|
|
549
|
|
|
550 ch.pid = ngx_processes[i].pid;
|
|
|
551 ch.slot = i;
|
|
|
552
|
|
|
553 for (n = 0; n < ngx_last_process; n++) {
|
|
|
554 if (ngx_processes[n].exited
|
|
|
555 || ngx_processes[n].pid == -1
|
|
|
556 || ngx_processes[n].channel[0] == -1)
|
|
|
557 {
|
|
|
558 continue;
|
|
|
559 }
|
|
|
560
|
|
|
561 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
562 "pass close channel s:%i pid:%P to:%P",
|
|
|
563 ch.slot, ch.pid, ngx_processes[n].pid);
|
|
0
|
564
|
|
|
565 /* TODO: NGX_AGAIN */
|
|
|
566
|
|
|
567 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
568 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
569 }
|
|
|
570 }
|
|
|
571
|
|
|
572 if (ngx_processes[i].respawn
|
|
|
573 && !ngx_processes[i].exiting
|
|
|
574 && !ngx_terminate
|
|
|
575 && !ngx_quit)
|
|
|
576 {
|
|
|
577 if (ngx_spawn_process(cycle, ngx_processes[i].proc,
|
|
|
578 ngx_processes[i].data,
|
|
|
579 ngx_processes[i].name, i)
|
|
92
|
580 == NGX_INVALID_PID)
|
|
0
|
581 {
|
|
|
582 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
583 "can not respawn %s", ngx_processes[i].name);
|
|
|
584 continue;
|
|
|
585 }
|
|
|
586
|
|
22
|
587
|
|
|
588 ch.command = NGX_CMD_OPEN_CHANNEL;
|
|
|
589 ch.pid = ngx_processes[ngx_process_slot].pid;
|
|
|
590 ch.slot = ngx_process_slot;
|
|
|
591 ch.fd = ngx_processes[ngx_process_slot].channel[0];
|
|
|
592
|
|
|
593 for (n = 0; n < ngx_last_process; n++) {
|
|
|
594
|
|
|
595 if (n == ngx_process_slot
|
|
|
596 || ngx_processes[n].pid == -1
|
|
|
597 || ngx_processes[n].channel[0] == -1)
|
|
|
598 {
|
|
|
599 continue;
|
|
|
600 }
|
|
|
601
|
|
|
602 ngx_log_debug6(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
603 "pass channel s:%d pid:%P fd:%d to s:%i pid:%P fd:%d",
|
|
|
604 ch.slot, ch.pid, ch.fd,
|
|
|
605 n, ngx_processes[n].pid,
|
|
|
606 ngx_processes[n].channel[0]);
|
|
|
607
|
|
|
608 /* TODO: NGX_AGAIN */
|
|
|
609
|
|
|
610 ngx_write_channel(ngx_processes[n].channel[0],
|
|
|
611 &ch, sizeof(ngx_channel_t), cycle->log);
|
|
|
612 }
|
|
|
613
|
|
0
|
614 live = 1;
|
|
|
615
|
|
|
616 continue;
|
|
|
617 }
|
|
|
618
|
|
|
619 if (ngx_processes[i].pid == ngx_new_binary) {
|
|
92
|
620
|
|
|
621 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
|
|
|
622 ngx_core_module);
|
|
|
623
|
|
|
624 if (ngx_rename_file((char *) ccf->oldpid.data,
|
|
|
625 (char *) ccf->pid.data)
|
|
|
626 != NGX_OK)
|
|
|
627 {
|
|
|
628 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
629 ngx_rename_file_n " %s back to %s failed "
|
|
|
630 "after the new binary process \"%s\" exited",
|
|
|
631 ccf->oldpid.data, ccf->pid.data, ngx_argv[0]);
|
|
|
632 }
|
|
|
633
|
|
0
|
634 ngx_new_binary = 0;
|
|
|
635 if (ngx_noaccepting) {
|
|
|
636 ngx_restart = 1;
|
|
|
637 ngx_noaccepting = 0;
|
|
|
638 }
|
|
|
639 }
|
|
|
640
|
|
|
641 if (i == ngx_last_process - 1) {
|
|
|
642 ngx_last_process--;
|
|
|
643
|
|
|
644 } else {
|
|
|
645 ngx_processes[i].pid = -1;
|
|
|
646 }
|
|
|
647
|
|
|
648 } else if (ngx_processes[i].exiting || !ngx_processes[i].detached) {
|
|
|
649 live = 1;
|
|
|
650 }
|
|
|
651 }
|
|
|
652
|
|
|
653 return live;
|
|
|
654 }
|
|
|
655
|
|
|
656
|
|
50
|
657 static void
|
|
122
|
658 ngx_master_process_exit(ngx_cycle_t *cycle)
|
|
0
|
659 {
|
|
120
|
660 ngx_uint_t i;
|
|
|
661
|
|
0
|
662 ngx_delete_pidfile(cycle);
|
|
|
663
|
|
26
|
664 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit");
|
|
0
|
665
|
|
120
|
666 for (i = 0; ngx_modules[i]; i++) {
|
|
|
667 if (ngx_modules[i]->exit_master) {
|
|
|
668 ngx_modules[i]->exit_master(cycle);
|
|
|
669 }
|
|
|
670 }
|
|
|
671
|
|
54
|
672 /*
|
|
332
|
673 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
674 * log, and log file structures enough to allow a signal handler to log.
|
|
|
675 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
676 * ngx_cycle->pool is already destroyed.
|
|
54
|
677 */
|
|
|
678
|
|
332
|
679 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
680
|
|
|
681 ngx_exit_log = *ngx_cycle->log;
|
|
|
682 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
683
|
|
|
684 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
685 ngx_cycle = &ngx_exit_cycle;
|
|
|
686
|
|
0
|
687 ngx_destroy_pool(cycle->pool);
|
|
|
688
|
|
|
689 exit(0);
|
|
|
690 }
|
|
|
691
|
|
|
692
|
|
50
|
693 static void
|
|
|
694 ngx_worker_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
0
|
695 {
|
|
290
|
696 ngx_uint_t i;
|
|
|
697 ngx_connection_t *c;
|
|
18
|
698
|
|
22
|
699 ngx_worker_process_init(cycle, 1);
|
|
0
|
700
|
|
|
701 ngx_setproctitle("worker process");
|
|
|
702
|
|
|
703 #if (NGX_THREADS)
|
|
356
|
704 {
|
|
|
705 ngx_int_t n;
|
|
|
706 ngx_err_t err;
|
|
|
707 ngx_core_conf_t *ccf;
|
|
0
|
708
|
|
18
|
709 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
710
|
|
0
|
711 if (ngx_threads_n) {
|
|
290
|
712 if (ngx_init_threads(ngx_threads_n, ccf->thread_stack_size, cycle)
|
|
|
713 == NGX_ERROR)
|
|
0
|
714 {
|
|
|
715 /* fatal */
|
|
|
716 exit(2);
|
|
|
717 }
|
|
|
718
|
|
|
719 err = ngx_thread_key_create(&ngx_core_tls_key);
|
|
|
720 if (err != 0) {
|
|
|
721 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
722 ngx_thread_key_create_n " failed");
|
|
|
723 /* fatal */
|
|
|
724 exit(2);
|
|
|
725 }
|
|
|
726
|
|
|
727 for (n = 0; n < ngx_threads_n; n++) {
|
|
|
728
|
|
50
|
729 ngx_threads[n].cv = ngx_cond_init(cycle->log);
|
|
|
730
|
|
|
731 if (ngx_threads[n].cv == NULL) {
|
|
0
|
732 /* fatal */
|
|
|
733 exit(2);
|
|
|
734 }
|
|
|
735
|
|
|
736 if (ngx_create_thread((ngx_tid_t *) &ngx_threads[n].tid,
|
|
|
737 ngx_worker_thread_cycle,
|
|
290
|
738 (void *) &ngx_threads[n], cycle->log)
|
|
|
739 != 0)
|
|
0
|
740 {
|
|
|
741 /* fatal */
|
|
|
742 exit(2);
|
|
|
743 }
|
|
|
744 }
|
|
|
745 }
|
|
356
|
746 }
|
|
0
|
747 #endif
|
|
|
748
|
|
|
749 for ( ;; ) {
|
|
290
|
750
|
|
|
751 if (ngx_exiting) {
|
|
|
752
|
|
|
753 c = cycle->connections;
|
|
|
754
|
|
|
755 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
756
|
|
|
757 /* THREAD: lock */
|
|
0
|
758
|
|
290
|
759 if (c[i].fd != -1 && c[i].idle) {
|
|
|
760 c[i].close = 1;
|
|
|
761 c[i].read->handler(c[i].read);
|
|
|
762 }
|
|
|
763 }
|
|
|
764
|
|
|
765 if (ngx_event_timer_rbtree.root == ngx_event_timer_rbtree.sentinel)
|
|
|
766 {
|
|
|
767 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
|
768
|
|
|
769 ngx_worker_process_exit(cycle);
|
|
|
770 }
|
|
0
|
771 }
|
|
|
772
|
|
|
773 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "worker cycle");
|
|
|
774
|
|
112
|
775 ngx_process_events_and_timers(cycle);
|
|
0
|
776
|
|
|
777 if (ngx_terminate) {
|
|
26
|
778 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
0
|
779
|
|
122
|
780 ngx_worker_process_exit(cycle);
|
|
0
|
781 }
|
|
|
782
|
|
|
783 if (ngx_quit) {
|
|
|
784 ngx_quit = 0;
|
|
26
|
785 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
0
|
786 "gracefully shutting down");
|
|
|
787 ngx_setproctitle("worker process is shutting down");
|
|
|
788
|
|
|
789 if (!ngx_exiting) {
|
|
|
790 ngx_close_listening_sockets(cycle);
|
|
|
791 ngx_exiting = 1;
|
|
|
792 }
|
|
|
793 }
|
|
|
794
|
|
|
795 if (ngx_reopen) {
|
|
|
796 ngx_reopen = 0;
|
|
26
|
797 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
0
|
798 ngx_reopen_files(cycle, -1);
|
|
|
799 }
|
|
|
800 }
|
|
|
801 }
|
|
|
802
|
|
|
803
|
|
50
|
804 static void
|
|
|
805 ngx_worker_process_init(ngx_cycle_t *cycle, ngx_uint_t priority)
|
|
16
|
806 {
|
|
278
|
807 sigset_t set;
|
|
|
808 ngx_int_t n;
|
|
|
809 ngx_uint_t i;
|
|
|
810 struct rlimit rlmt;
|
|
|
811 ngx_core_conf_t *ccf;
|
|
|
812 ngx_listening_t *ls;
|
|
16
|
813
|
|
|
814 ngx_process = NGX_PROCESS_WORKER;
|
|
|
815
|
|
278
|
816 if (ngx_set_environment(cycle, NULL) == NULL) {
|
|
|
817 /* fatal */
|
|
|
818 exit(2);
|
|
|
819 }
|
|
|
820
|
|
16
|
821 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
822
|
|
328
|
823 if (priority && ccf->priority != 0) {
|
|
|
824 if (setpriority(PRIO_PROCESS, 0, ccf->priority) == -1) {
|
|
|
825 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
826 "setpriority(%d) failed", ccf->priority);
|
|
22
|
827 }
|
|
328
|
828 }
|
|
22
|
829
|
|
328
|
830 if (ccf->rlimit_nofile != NGX_CONF_UNSET) {
|
|
|
831 rlmt.rlim_cur = (rlim_t) ccf->rlimit_nofile;
|
|
|
832 rlmt.rlim_max = (rlim_t) ccf->rlimit_nofile;
|
|
92
|
833
|
|
328
|
834 if (setrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
835 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
836 "setrlimit(RLIMIT_NOFILE, %i) failed",
|
|
|
837 ccf->rlimit_nofile);
|
|
92
|
838 }
|
|
328
|
839 }
|
|
92
|
840
|
|
328
|
841 if (ccf->rlimit_core != NGX_CONF_UNSET_SIZE) {
|
|
|
842 rlmt.rlim_cur = (rlim_t) ccf->rlimit_core;
|
|
|
843 rlmt.rlim_max = (rlim_t) ccf->rlimit_core;
|
|
138
|
844
|
|
328
|
845 if (setrlimit(RLIMIT_CORE, &rlmt) == -1) {
|
|
|
846 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
847 "setrlimit(RLIMIT_CORE, %i) failed",
|
|
|
848 ccf->rlimit_core);
|
|
138
|
849 }
|
|
328
|
850 }
|
|
138
|
851
|
|
92
|
852 #ifdef RLIMIT_SIGPENDING
|
|
328
|
853 if (ccf->rlimit_sigpending != NGX_CONF_UNSET) {
|
|
|
854 rlmt.rlim_cur = (rlim_t) ccf->rlimit_sigpending;
|
|
|
855 rlmt.rlim_max = (rlim_t) ccf->rlimit_sigpending;
|
|
92
|
856
|
|
328
|
857 if (setrlimit(RLIMIT_SIGPENDING, &rlmt) == -1) {
|
|
|
858 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
859 "setrlimit(RLIMIT_SIGPENDING, %i) failed",
|
|
|
860 ccf->rlimit_sigpending);
|
|
92
|
861 }
|
|
328
|
862 }
|
|
92
|
863 #endif
|
|
|
864
|
|
328
|
865 if (geteuid() == 0) {
|
|
16
|
866 if (setgid(ccf->group) == -1) {
|
|
|
867 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
868 "setgid(%d) failed", ccf->group);
|
|
|
869 /* fatal */
|
|
|
870 exit(2);
|
|
|
871 }
|
|
|
872
|
|
22
|
873 if (initgroups(ccf->username, ccf->group) == -1) {
|
|
|
874 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
875 "initgroups(%s, %d) failed",
|
|
|
876 ccf->username, ccf->group);
|
|
|
877 }
|
|
|
878
|
|
16
|
879 if (setuid(ccf->user) == -1) {
|
|
|
880 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
881 "setuid(%d) failed", ccf->user);
|
|
|
882 /* fatal */
|
|
|
883 exit(2);
|
|
|
884 }
|
|
|
885 }
|
|
|
886
|
|
126
|
887 #if (NGX_HAVE_SCHED_SETAFFINITY)
|
|
|
888
|
|
|
889 if (cpu_affinity) {
|
|
|
890 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
891 "sched_setaffinity(0x%08Xl)", cpu_affinity);
|
|
|
892
|
|
|
893 if (sched_setaffinity(0, 32, (cpu_set_t *) &cpu_affinity) == -1) {
|
|
|
894 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
895 "sched_setaffinity(0x%08Xl) failed", cpu_affinity);
|
|
|
896 }
|
|
|
897 }
|
|
|
898
|
|
|
899 #endif
|
|
|
900
|
|
16
|
901 #if (NGX_HAVE_PR_SET_DUMPABLE)
|
|
|
902
|
|
|
903 /* allow coredump after setuid() in Linux 2.4.x */
|
|
|
904
|
|
|
905 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
|
|
|
906 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
907 "prctl(PR_SET_DUMPABLE) failed");
|
|
|
908 }
|
|
|
909
|
|
|
910 #endif
|
|
|
911
|
|
70
|
912 if (ccf->working_directory.len) {
|
|
72
|
913 if (chdir((char *) ccf->working_directory.data) == -1) {
|
|
70
|
914 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
915 "chdir(\"%s\") failed", ccf->working_directory.data);
|
|
|
916 /* fatal */
|
|
|
917 exit(2);
|
|
|
918 }
|
|
|
919 }
|
|
|
920
|
|
16
|
921 sigemptyset(&set);
|
|
|
922
|
|
|
923 if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) {
|
|
|
924 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
925 "sigprocmask() failed");
|
|
|
926 }
|
|
|
927
|
|
|
928 ngx_init_temp_number();
|
|
|
929
|
|
|
930 /*
|
|
|
931 * disable deleting previous events for the listening sockets because
|
|
|
932 * in the worker processes there are no events at all at this point
|
|
126
|
933 */
|
|
16
|
934 ls = cycle->listening.elts;
|
|
|
935 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
92
|
936 ls[i].previous = NULL;
|
|
16
|
937 }
|
|
|
938
|
|
|
939 for (i = 0; ngx_modules[i]; i++) {
|
|
|
940 if (ngx_modules[i]->init_process) {
|
|
|
941 if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
|
|
|
942 /* fatal */
|
|
|
943 exit(2);
|
|
|
944 }
|
|
|
945 }
|
|
|
946 }
|
|
|
947
|
|
|
948 for (n = 0; n < ngx_last_process; n++) {
|
|
|
949
|
|
|
950 if (ngx_processes[n].pid == -1) {
|
|
|
951 continue;
|
|
|
952 }
|
|
|
953
|
|
|
954 if (n == ngx_process_slot) {
|
|
|
955 continue;
|
|
|
956 }
|
|
|
957
|
|
|
958 if (ngx_processes[n].channel[1] == -1) {
|
|
|
959 continue;
|
|
|
960 }
|
|
|
961
|
|
|
962 if (close(ngx_processes[n].channel[1]) == -1) {
|
|
|
963 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
964 "close() channel failed");
|
|
|
965 }
|
|
|
966 }
|
|
|
967
|
|
|
968 if (close(ngx_processes[ngx_process_slot].channel[0]) == -1) {
|
|
|
969 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
970 "close() channel failed");
|
|
|
971 }
|
|
|
972
|
|
|
973 #if 0
|
|
|
974 ngx_last_process = 0;
|
|
|
975 #endif
|
|
|
976
|
|
|
977 if (ngx_add_channel_event(cycle, ngx_channel, NGX_READ_EVENT,
|
|
290
|
978 ngx_channel_handler)
|
|
|
979 == NGX_ERROR)
|
|
16
|
980 {
|
|
|
981 /* fatal */
|
|
|
982 exit(2);
|
|
|
983 }
|
|
|
984 }
|
|
|
985
|
|
|
986
|
|
50
|
987 static void
|
|
122
|
988 ngx_worker_process_exit(ngx_cycle_t *cycle)
|
|
|
989 {
|
|
|
990 ngx_uint_t i;
|
|
|
991 ngx_connection_t *c;
|
|
|
992
|
|
|
993 #if (NGX_THREADS)
|
|
|
994 ngx_terminate = 1;
|
|
|
995
|
|
|
996 ngx_wakeup_worker_threads(cycle);
|
|
|
997 #endif
|
|
|
998
|
|
|
999 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1000 if (ngx_modules[i]->exit_process) {
|
|
|
1001 ngx_modules[i]->exit_process(cycle);
|
|
|
1002 }
|
|
|
1003 }
|
|
|
1004
|
|
366
|
1005 if (ngx_exiting) {
|
|
136
|
1006 c = cycle->connections;
|
|
|
1007 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
1008 if (c[i].fd != -1
|
|
|
1009 && c[i].read
|
|
|
1010 && !c[i].read->accept
|
|
366
|
1011 && !c[i].read->channel
|
|
|
1012 && !c[i].read->resolver)
|
|
136
|
1013 {
|
|
|
1014 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
452
|
1015 "open socket #%d left in connection %ui%s",
|
|
366
|
1016 c[i].fd, i, ngx_debug_quit ? ", aborting" : "");
|
|
136
|
1017 ngx_debug_point();
|
|
|
1018 }
|
|
122
|
1019 }
|
|
|
1020
|
|
136
|
1021 if (ngx_debug_quit) {
|
|
|
1022 ngx_debug_point();
|
|
|
1023 }
|
|
122
|
1024 }
|
|
|
1025
|
|
|
1026 /*
|
|
332
|
1027 * Copy ngx_cycle->log related data to the special static exit cycle,
|
|
|
1028 * log, and log file structures enough to allow a signal handler to log.
|
|
|
1029 * The handler may be called when standard ngx_cycle->log allocated from
|
|
|
1030 * ngx_cycle->pool is already destroyed.
|
|
122
|
1031 */
|
|
|
1032
|
|
332
|
1033 ngx_exit_log_file.fd = ngx_cycle->log->file->fd;
|
|
|
1034
|
|
|
1035 ngx_exit_log = *ngx_cycle->log;
|
|
|
1036 ngx_exit_log.file = &ngx_exit_log_file;
|
|
|
1037
|
|
|
1038 ngx_exit_cycle.log = &ngx_exit_log;
|
|
|
1039 ngx_cycle = &ngx_exit_cycle;
|
|
|
1040
|
|
122
|
1041 ngx_destroy_pool(cycle->pool);
|
|
332
|
1042
|
|
|
1043 ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, "exit");
|
|
122
|
1044
|
|
|
1045 exit(0);
|
|
|
1046 }
|
|
|
1047
|
|
|
1048
|
|
|
1049 static void
|
|
50
|
1050 ngx_channel_handler(ngx_event_t *ev)
|
|
0
|
1051 {
|
|
|
1052 ngx_int_t n;
|
|
|
1053 ngx_channel_t ch;
|
|
|
1054 ngx_connection_t *c;
|
|
|
1055
|
|
16
|
1056 if (ev->timedout) {
|
|
|
1057 ev->timedout = 0;
|
|
|
1058 return;
|
|
|
1059 }
|
|
|
1060
|
|
0
|
1061 c = ev->data;
|
|
|
1062
|
|
|
1063 ngx_log_debug0(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel handler");
|
|
|
1064
|
|
378
|
1065 for ( ;; ) {
|
|
0
|
1066
|
|
378
|
1067 n = ngx_read_channel(c->fd, &ch, sizeof(ngx_channel_t), ev->log);
|
|
|
1068
|
|
|
1069 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, "channel: %i", n);
|
|
0
|
1070
|
|
378
|
1071 if (n == NGX_ERROR) {
|
|
366
|
1072
|
|
378
|
1073 if (ngx_event_flags & NGX_USE_EPOLL_EVENT) {
|
|
|
1074 ngx_del_conn(c, 0);
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 ngx_close_connection(c);
|
|
|
1078 return;
|
|
366
|
1079 }
|
|
|
1080
|
|
378
|
1081 if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
|
|
|
1082 if (ngx_add_event(ev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1083 return;
|
|
|
1084 }
|
|
|
1085 }
|
|
10
|
1086
|
|
378
|
1087 if (n == NGX_AGAIN) {
|
|
290
|
1088 return;
|
|
|
1089 }
|
|
378
|
1090
|
|
|
1091 ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1092 "channel command: %d", ch.command);
|
|
290
|
1093
|
|
378
|
1094 switch (ch.command) {
|
|
0
|
1095
|
|
378
|
1096 case NGX_CMD_QUIT:
|
|
|
1097 ngx_quit = 1;
|
|
|
1098 break;
|
|
0
|
1099
|
|
378
|
1100 case NGX_CMD_TERMINATE:
|
|
|
1101 ngx_terminate = 1;
|
|
|
1102 break;
|
|
0
|
1103
|
|
378
|
1104 case NGX_CMD_REOPEN:
|
|
|
1105 ngx_reopen = 1;
|
|
|
1106 break;
|
|
0
|
1107
|
|
378
|
1108 case NGX_CMD_OPEN_CHANNEL:
|
|
0
|
1109
|
|
378
|
1110 ngx_log_debug3(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1111 "get channel s:%i pid:%P fd:%d",
|
|
|
1112 ch.slot, ch.pid, ch.fd);
|
|
0
|
1113
|
|
378
|
1114 ngx_processes[ch.slot].pid = ch.pid;
|
|
|
1115 ngx_processes[ch.slot].channel[0] = ch.fd;
|
|
|
1116 break;
|
|
0
|
1117
|
|
378
|
1118 case NGX_CMD_CLOSE_CHANNEL:
|
|
0
|
1119
|
|
378
|
1120 ngx_log_debug4(NGX_LOG_DEBUG_CORE, ev->log, 0,
|
|
|
1121 "close channel s:%i pid:%P our:%P fd:%d",
|
|
|
1122 ch.slot, ch.pid, ngx_processes[ch.slot].pid,
|
|
|
1123 ngx_processes[ch.slot].channel[0]);
|
|
0
|
1124
|
|
378
|
1125 if (close(ngx_processes[ch.slot].channel[0]) == -1) {
|
|
|
1126 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno,
|
|
|
1127 "close() channel failed");
|
|
|
1128 }
|
|
|
1129
|
|
|
1130 ngx_processes[ch.slot].channel[0] = -1;
|
|
|
1131 break;
|
|
0
|
1132 }
|
|
|
1133 }
|
|
|
1134 }
|
|
|
1135
|
|
|
1136
|
|
|
1137 #if (NGX_THREADS)
|
|
|
1138
|
|
50
|
1139 static void
|
|
|
1140 ngx_wakeup_worker_threads(ngx_cycle_t *cycle)
|
|
0
|
1141 {
|
|
|
1142 ngx_int_t i;
|
|
|
1143 ngx_uint_t live;
|
|
|
1144
|
|
|
1145 for ( ;; ) {
|
|
|
1146
|
|
|
1147 live = 0;
|
|
|
1148
|
|
|
1149 for (i = 0; i < ngx_threads_n; i++) {
|
|
|
1150 if (ngx_threads[i].state < NGX_THREAD_EXIT) {
|
|
18
|
1151 if (ngx_cond_signal(ngx_threads[i].cv) == NGX_ERROR) {
|
|
|
1152 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
0
|
1153
|
|
|
1154 } else {
|
|
|
1155 live = 1;
|
|
|
1156 }
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 if (ngx_threads[i].state == NGX_THREAD_EXIT) {
|
|
|
1160 ngx_thread_join(ngx_threads[i].tid, NULL);
|
|
|
1161 ngx_threads[i].state = NGX_THREAD_DONE;
|
|
|
1162 }
|
|
|
1163 }
|
|
|
1164
|
|
|
1165 if (live == 0) {
|
|
|
1166 ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
|
1167 "all worker threads are joined");
|
|
|
1168
|
|
|
1169 /* STUB */
|
|
|
1170 ngx_done_events(cycle);
|
|
|
1171 ngx_mutex_destroy(ngx_event_timer_mutex);
|
|
|
1172 ngx_mutex_destroy(ngx_posted_events_mutex);
|
|
|
1173
|
|
|
1174 return;
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 ngx_sched_yield();
|
|
|
1178 }
|
|
|
1179 }
|
|
|
1180
|
|
|
1181
|
|
112
|
1182 static ngx_thread_value_t
|
|
50
|
1183 ngx_worker_thread_cycle(void *data)
|
|
0
|
1184 {
|
|
|
1185 ngx_thread_t *thr = data;
|
|
|
1186
|
|
|
1187 sigset_t set;
|
|
|
1188 ngx_err_t err;
|
|
|
1189 ngx_core_tls_t *tls;
|
|
|
1190 ngx_cycle_t *cycle;
|
|
|
1191
|
|
|
1192 cycle = (ngx_cycle_t *) ngx_cycle;
|
|
|
1193
|
|
|
1194 sigemptyset(&set);
|
|
|
1195 sigaddset(&set, ngx_signal_value(NGX_RECONFIGURE_SIGNAL));
|
|
|
1196 sigaddset(&set, ngx_signal_value(NGX_REOPEN_SIGNAL));
|
|
|
1197 sigaddset(&set, ngx_signal_value(NGX_CHANGEBIN_SIGNAL));
|
|
|
1198
|
|
|
1199 err = ngx_thread_sigmask(SIG_BLOCK, &set, NULL);
|
|
|
1200 if (err) {
|
|
|
1201 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1202 ngx_thread_sigmask_n " failed");
|
|
112
|
1203 return (ngx_thread_value_t) 1;
|
|
0
|
1204 }
|
|
|
1205
|
|
|
1206 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1207 "thread " NGX_TID_T_FMT " started", ngx_thread_self());
|
|
0
|
1208
|
|
|
1209 ngx_setthrtitle("worker thread");
|
|
|
1210
|
|
50
|
1211 tls = ngx_calloc(sizeof(ngx_core_tls_t), cycle->log);
|
|
|
1212 if (tls == NULL) {
|
|
112
|
1213 return (ngx_thread_value_t) 1;
|
|
0
|
1214 }
|
|
|
1215
|
|
|
1216 err = ngx_thread_set_tls(ngx_core_tls_key, tls);
|
|
|
1217 if (err != 0) {
|
|
|
1218 ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
|
|
|
1219 ngx_thread_set_tls_n " failed");
|
|
112
|
1220 return (ngx_thread_value_t) 1;
|
|
0
|
1221 }
|
|
|
1222
|
|
112
|
1223 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
1224
|
|
|
1225 for ( ;; ) {
|
|
|
1226 thr->state = NGX_THREAD_FREE;
|
|
|
1227
|
|
|
1228 if (ngx_cond_wait(thr->cv, ngx_posted_events_mutex) == NGX_ERROR) {
|
|
112
|
1229 return (ngx_thread_value_t) 1;
|
|
0
|
1230 }
|
|
|
1231
|
|
|
1232 if (ngx_terminate) {
|
|
|
1233 thr->state = NGX_THREAD_EXIT;
|
|
|
1234
|
|
|
1235 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
1236
|
|
|
1237 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
|
|
10
|
1238 "thread " NGX_TID_T_FMT " is done",
|
|
|
1239 ngx_thread_self());
|
|
0
|
1240
|
|
112
|
1241 return (ngx_thread_value_t) 0;
|
|
0
|
1242 }
|
|
|
1243
|
|
|
1244 thr->state = NGX_THREAD_BUSY;
|
|
|
1245
|
|
|
1246 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1247 return (ngx_thread_value_t) 1;
|
|
0
|
1248 }
|
|
|
1249
|
|
|
1250 if (ngx_event_thread_process_posted(cycle) == NGX_ERROR) {
|
|
112
|
1251 return (ngx_thread_value_t) 1;
|
|
0
|
1252 }
|
|
|
1253
|
|
|
1254 if (ngx_process_changes) {
|
|
|
1255 if (ngx_process_changes(cycle, 1) == NGX_ERROR) {
|
|
112
|
1256 return (ngx_thread_value_t) 1;
|
|
0
|
1257 }
|
|
|
1258 }
|
|
|
1259 }
|
|
|
1260 }
|
|
|
1261
|
|
|
1262 #endif
|
|
16
|
1263
|
|
|
1264
|
|
50
|
1265 static void
|
|
468
|
1266 ngx_cache_manager_process_cycle(ngx_cycle_t *cycle, void *data)
|
|
16
|
1267 {
|
|
464
|
1268 void *ident[4];
|
|
|
1269 ngx_event_t ev;
|
|
|
1270
|
|
|
1271 cycle->connection_n = 512;
|
|
16
|
1272
|
|
22
|
1273 ngx_worker_process_init(cycle, 0);
|
|
16
|
1274
|
|
464
|
1275 ngx_close_listening_sockets(cycle);
|
|
16
|
1276
|
|
464
|
1277 ngx_memzero(&ev, sizeof(ngx_event_t));
|
|
468
|
1278 ev.handler = ngx_cache_manager_process_handler;
|
|
464
|
1279 ev.data = ident;
|
|
|
1280 ev.log = cycle->log;
|
|
|
1281 ident[3] = (void *) -1;
|
|
16
|
1282
|
|
464
|
1283 ngx_use_accept_mutex = 0;
|
|
|
1284
|
|
468
|
1285 ngx_setproctitle("cache manager process");
|
|
464
|
1286
|
|
|
1287 ngx_add_timer(&ev, 0);
|
|
16
|
1288
|
|
|
1289 for ( ;; ) {
|
|
|
1290
|
|
|
1291 if (ngx_terminate || ngx_quit) {
|
|
26
|
1292 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
|
|
16
|
1293 exit(0);
|
|
|
1294 }
|
|
|
1295
|
|
|
1296 if (ngx_reopen) {
|
|
|
1297 ngx_reopen = 0;
|
|
26
|
1298 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
|
|
16
|
1299 ngx_reopen_files(cycle, -1);
|
|
|
1300 }
|
|
|
1301
|
|
112
|
1302 ngx_process_events_and_timers(cycle);
|
|
16
|
1303 }
|
|
|
1304 }
|
|
50
|
1305
|
|
464
|
1306
|
|
|
1307 static void
|
|
468
|
1308 ngx_cache_manager_process_handler(ngx_event_t *ev)
|
|
464
|
1309 {
|
|
|
1310 time_t next, n;
|
|
|
1311 ngx_uint_t i;
|
|
|
1312 ngx_path_t **path;
|
|
|
1313
|
|
|
1314 next = 60 * 60;
|
|
|
1315
|
|
|
1316 path = ngx_cycle->pathes.elts;
|
|
|
1317 for (i = 0; i < ngx_cycle->pathes.nelts; i++) {
|
|
|
1318
|
|
468
|
1319 if (path[i]->manager) {
|
|
|
1320 n = path[i]->manager(path[i]->data);
|
|
464
|
1321
|
|
|
1322 next = (n <= next) ? n : next;
|
|
|
1323
|
|
|
1324 ngx_time_update(0, 0);
|
|
|
1325 }
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 if (next == 0) {
|
|
|
1329 next = 1;
|
|
|
1330 }
|
|
|
1331
|
|
|
1332 ngx_add_timer(ev, next * 1000);
|
|
|
1333 }
|
