annotate src/os/unix/ngx_freebsd_rfork_thread.c @ 501:d4ea69372b94 release-0.1.25

nginx-0.1.25-RELEASE import *) Bugfix: nginx did run on Linux parisc. *) Feature: nginx now does not start under FreeBSD if the sysctl kern.ipc.somaxconn value is too big. *) Bugfix: if a request was internally redirected by the ngx_http_index_module module to the ngx_http_proxy_module or ngx_http_fastcgi_module modules, then the index file was not closed after request completion. *) Feature: the "proxy_pass" can be used in location with regular expression. *) Feature: the ngx_http_rewrite_filter_module module supports the condition like "if ($HTTP_USER_AGENT ~ MSIE)". *) Bugfix: nginx started too slow if the large number of addresses and text values were used in the "geo" directive. *) Change: a variable name must be declared as "$name" in the "geo" directive. The previous variant without "$" is still supported, but will be removed soon. *) Feature: the "%{VARIABLE}v" logging parameter. *) Feature: the "set $name value" directive. *) Bugfix: gcc 4.0 compatibility. *) Feature: the --with-openssl-opt=OPTIONS autoconfiguration directive.
author Igor Sysoev <igor@sysoev.ru>
date Sat, 19 Mar 2005 12:38:37 +0000
parents 2ff194b74f1e
children 9c2f3ed7a247
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1
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2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
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4 */
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5
3
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6
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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7 #include <ngx_config.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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8 #include <ngx_core.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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9
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5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
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10 /*
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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11 * The threads implementation uses the rfork(RFPROC|RFTHREAD|RFMEM) syscall
266
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12 * to create threads. All threads use the stacks of the same size mmap()ed
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
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13 * below the main stack. Thus the current thread id is determinated via
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
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14 * the stack pointer value.
266
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15 *
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16 * The mutex implementation uses the ngx_atomic_cmp_set() operation
376
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17 * to acquire a mutex and the SysV semaphore to wait on a mutex and to wake up
370
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18 * the waiting threads. The light mutex does not use semaphore, so after
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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19 * spinning in the lock the thread calls sched_yield(). However the light
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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20 * mutecies are intended to be used with the "trylock" operation only.
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21 * The SysV semop() is a cheap syscall, particularly if it has little sembuf's
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
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22 * and does not use SEM_UNDO.
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23 *
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24 * The condition variable implementation uses the signal #64.
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25 * The signal handler is SIG_IGN so the kill() is a cheap syscall.
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26 * The thread waits a signal in kevent(). The use of the EVFILT_SIGNAL
a88a3e4e158f nginx-0.1.5-RELEASE import
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27 * is safe since FreeBSD 4.10-STABLE.
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28 *
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29 * This threads implementation currently works on i386 (486+) and amd64
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30 * platforms only.
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31 */
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33
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34 char *ngx_freebsd_kern_usrstack;
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35 size_t ngx_thread_stack_size;
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37
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38 static size_t rz_size;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
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39 static size_t usable_stack_size;
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40 static char *last_stack;
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41
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42 static ngx_uint_t nthreads;
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43 static ngx_uint_t max_threads;
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44
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45 static ngx_uint_t nkeys;
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46 static ngx_tid_t *tids; /* the threads tids array */
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47 void **ngx_tls; /* the threads tls's array */
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48
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49 /* the thread-safe libc errno */
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50
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51 static int errno0; /* the main thread's errno */
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52 static int *errnos; /* the threads errno's array */
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54 int *__error()
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55 {
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56 int tid;
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57
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58 tid = ngx_gettid();
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59
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60 return tid ? &errnos[tid - 1] : &errno0;
3
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61 }
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63
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64 /*
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65 * __isthreaded enables the spinlocks in some libc functions, i.e. in malloc()
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66 * and some other places. Nevertheless we protect our malloc()/free() calls
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67 * by own mutex that is more efficient than the spinlock.
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68 *
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69 * _spinlock() is a weak referenced stub in src/lib/libc/gen/_spinlock_stub.c
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70 * that does nothing.
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71 */
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72
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73 extern int __isthreaded;
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74
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75 void _spinlock(ngx_atomic_t *lock)
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76 {
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77 ngx_int_t tries;
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78
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79 tries = 0;
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80
267
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81 for ( ;; ) {
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82
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83 if (*lock) {
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84 if (ngx_ncpu > 1 && tries++ < 1000) {
267
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85 continue;
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86 }
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87
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88 sched_yield();
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89 tries = 0;
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90
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91 } else {
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92 if (ngx_atomic_cmp_set(lock, 0, 1)) {
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93 return;
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94 }
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95 }
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96 }
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97 }
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98
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99
272
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100 /*
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101 * Before FreeBSD 5.1 _spinunlock() is a simple #define in
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102 * src/lib/libc/include/spinlock.h that zeroes lock.
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103 *
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104 * Since FreeBSD 5.1 _spinunlock() is a weak referenced stub in
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105 * src/lib/libc/gen/_spinlock_stub.c that does nothing.
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106 */
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107
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108 #ifndef _spinunlock
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109
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110 void _spinunlock(ngx_atomic_t *lock)
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111 {
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112 *lock = 0;
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113 }
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114
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
115 #endif
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
116
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
117
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
118 ngx_err_t ngx_create_thread(ngx_tid_t *tid, void* (*func)(void *arg), void *arg,
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
119 ngx_log_t *log)
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
120 {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
121 ngx_pid_t id;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
122 ngx_err_t err;
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
123 char *stack, *stack_top;
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
124
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
125 if (nthreads >= max_threads) {
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
126 ngx_log_error(NGX_LOG_CRIT, log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
127 "no more than %ui threads can be created", max_threads);
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
128 return NGX_ERROR;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
129 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
130
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
131 last_stack -= ngx_thread_stack_size;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
132
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
133 stack = mmap(last_stack, usable_stack_size, PROT_READ|PROT_WRITE,
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
134 MAP_STACK, -1, 0);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
135
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
136 if (stack == MAP_FAILED) {
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
137 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
138 "mmap(%p:%uz, MAP_STACK) thread stack failed",
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
139 last_stack, usable_stack_size);
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
140 return NGX_ERROR;
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
141 }
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
142
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
143 if (stack != last_stack) {
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
144 ngx_log_error(NGX_LOG_ALERT, log, 0,
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
145 "stack %p address was changed to %p", last_stack, stack);
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
146 return NGX_ERROR;
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
147 }
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
148
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
149 stack_top = stack + usable_stack_size;
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
150
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
151 ngx_log_debug2(NGX_LOG_DEBUG_CORE, log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
152 "thread stack: %p-%p", stack, stack_top);
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
153
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
154 ngx_set_errno(0);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
155
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
156 id = rfork_thread(RFPROC|RFTHREAD|RFMEM, stack_top,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
157 (ngx_rfork_thread_func_pt) func, arg);
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
158
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
159 err = ngx_errno;
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
160
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
161 if (id == -1) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
162 ngx_log_error(NGX_LOG_ALERT, log, err, "rfork() failed");
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
163
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
164 } else {
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
165 *tid = id;
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
166 nthreads = (ngx_freebsd_kern_usrstack - stack_top)
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
167 / ngx_thread_stack_size;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
168 tids[nthreads] = id;
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
169
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
170 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "rfork()ed thread: %P", id);
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
171 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
172
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
173 return err;
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
174 }
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
176
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 267
diff changeset
177 ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle)
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
178 {
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
179 char *red_zone, *zone;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
180 size_t len;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
181 ngx_int_t i;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
182 struct sigaction sa;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
183
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
184 max_threads = n + 1;
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
185
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
186 for (i = 0; i < n; i++) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
187 ngx_memzero(&sa, sizeof(struct sigaction));
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
188 sa.sa_handler = SIG_IGN;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
189 sigemptyset(&sa.sa_mask);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
190 if (sigaction(NGX_CV_SIGNAL, &sa, NULL) == -1) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
191 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
192 "sigaction(%d, SIG_IGN) failed", NGX_CV_SIGNAL);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
193 return NGX_ERROR;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
194 }
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
195 }
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
196
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
197 len = sizeof(ngx_freebsd_kern_usrstack);
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
198 if (sysctlbyname("kern.usrstack", &ngx_freebsd_kern_usrstack, &len,
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
199 NULL, 0) == -1)
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
200 {
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 267
diff changeset
201 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
202 "sysctlbyname(kern.usrstack) failed");
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
203 return NGX_ERROR;
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
204 }
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
205
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
206 /* the main thread stack red zone */
346
55e496a8ece3 nginx-0.0.3-2004-06-06-23:49:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 305
diff changeset
207 rz_size = ngx_pagesize;
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
208 red_zone = ngx_freebsd_kern_usrstack - (size + rz_size);
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
209
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 267
diff changeset
210 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cycle->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
211 "usrstack: %p red zone: %p",
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
212 ngx_freebsd_kern_usrstack, red_zone);
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
213
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
214 zone = mmap(red_zone, rz_size, PROT_NONE, MAP_ANON, -1, 0);
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
215 if (zone == MAP_FAILED) {
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 267
diff changeset
216 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
217 "mmap(%p:%uz, PROT_NONE, MAP_ANON) red zone failed",
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
218 red_zone, rz_size);
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
219 return NGX_ERROR;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
220 }
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
221
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
222 if (zone != red_zone) {
270
7bb9562216ce nginx-0.0.2-2004-02-25-23:16:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 267
diff changeset
223 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
224 "red zone %p address was changed to %p", red_zone, zone);
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
225 return NGX_ERROR;
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
226 }
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
227
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
228 /* create the thread errno' array */
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
229
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
230 errnos = ngx_calloc(n * sizeof(int), cycle->log);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
231 if (errnos == NULL) {
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
232 return NGX_ERROR;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
233 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
234
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
235 /* create the thread tids array */
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
236
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
237 tids = ngx_calloc((n + 1) * sizeof(ngx_tid_t), cycle->log);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
238 if (tids == NULL) {
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
239 return NGX_ERROR;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
240 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
241
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
242 tids[0] = ngx_pid;
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
243
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
244 /* create the thread tls' array */
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
245
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
246 ngx_tls = ngx_calloc(NGX_THREAD_KEYS_MAX * (n + 1) * sizeof(void *),
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
247 cycle->log);
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
248 if (ngx_tls == NULL) {
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
249 return NGX_ERROR;
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
250 }
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
251
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
252 nthreads = 1;
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
253
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
254 last_stack = zone + rz_size;
86
3973260705cc nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents: 85
diff changeset
255 usable_stack_size = size;
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
256 ngx_thread_stack_size = size + rz_size;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
257
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
258 /* allow the spinlock in libc malloc() */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
259 __isthreaded = 1;
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
260
271
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
261 ngx_threaded = 1;
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
262
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
263 return NGX_OK;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
264 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
265
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
266
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
267 ngx_tid_t ngx_thread_self()
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
268 {
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
269 ngx_int_t tid;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
270
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
271 tid = ngx_gettid();
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
272
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
273 if (tids == NULL) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
274 return ngx_pid;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
275 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
276
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
277 return tids[tid];
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
278 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
279
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
280
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
281 ngx_err_t ngx_thread_key_create(ngx_tls_key_t *key)
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
282 {
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
283 if (nkeys >= NGX_THREAD_KEYS_MAX) {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
284 return NGX_ENOMEM;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
285 }
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
286
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
287 *key = nkeys++;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
288
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
289 return 0;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
290 }
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
291
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
292
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
293 ngx_err_t ngx_thread_set_tls(ngx_tls_key_t key, void *value)
381
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
294 {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
295 if (key >= NGX_THREAD_KEYS_MAX) {
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
296 return NGX_EINVAL;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
297 }
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
298
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
299 ngx_tls[key * NGX_THREAD_KEYS_MAX + ngx_gettid()] = value;
02a511569afb nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents: 379
diff changeset
300 return 0;
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
301 }
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
302
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
303
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
304 ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags)
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
305 {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
306 ngx_mutex_t *m;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
307 union semun op;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
308
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
309 m = ngx_alloc(sizeof(ngx_mutex_t), log);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
310 if (m == NULL) {
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
311 return NULL;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
312 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
313
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
314 m->lock = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
315 m->log = log;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
316
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
317 if (flags & NGX_MUTEX_LIGHT) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
318 m->semid = -1;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
319 return m;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
320 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
321
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
322 m->semid = semget(IPC_PRIVATE, 1, SEM_R|SEM_A);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
323 if (m->semid == -1) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
324 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "semget() failed");
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
325 return NULL;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
326 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
327
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
328 op.val = 0;
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
329
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
330 if (semctl(m->semid, 0, SETVAL, op) == -1) {
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
331 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "semctl(SETVAL) failed");
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
332
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
333 if (semctl(m->semid, 0, IPC_RMID) == -1) {
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
334 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
335 "semctl(IPC_RMID) failed");
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
336 }
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
337
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
338 return NULL;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
339 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
340
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
341 return m;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
342 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
343
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
344
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
345 void ngx_mutex_destroy(ngx_mutex_t *m)
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
346 {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
347 if (semctl(m->semid, 0, IPC_RMID) == -1) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
348 ngx_log_error(NGX_LOG_ALERT, m->log, ngx_errno,
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
349 "semctl(IPC_RMID) failed");
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
350 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
351
267
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 266
diff changeset
352 ngx_free((void *) m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
353 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
354
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
355
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
356 ngx_int_t ngx_mutex_dolock(ngx_mutex_t *m, ngx_int_t try)
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
357 {
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
358 uint32_t lock, old;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
359 ngx_uint_t tries;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
360 struct sembuf op;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
361
271
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
362 if (!ngx_threaded) {
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
363 return NGX_OK;
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
364 }
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
365
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
366 #if (NGX_DEBUG)
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
367 if (try) {
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
368 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
369 "try lock mutex %p lock:%XD", m, m->lock);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
370 } else {
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
371 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
372 "lock mutex %p lock:%XD", m, m->lock);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
373 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
374 #endif
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
375
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
376 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
377 tries = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
378
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
379 for ( ;; ) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
380 if (old & NGX_MUTEX_LOCK_BUSY) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
381
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
382 if (try) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
383 return NGX_AGAIN;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
384 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
385
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
386 if (ngx_ncpu > 1 && tries++ < 1000) {
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
387
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
388 /* the spinlock is used only on the SMP system */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
389
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
390 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
391 continue;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
392 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
393
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
394 if (m->semid == -1) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
395 sched_yield();
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
396
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
397 tries = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
398 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
399 continue;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
400 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
401
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
402 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
403 "mutex %p lock:%XD", m, m->lock);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
404
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
405 /*
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
406 * The mutex is locked so we increase a number
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
407 * of the threads that are waiting on the mutex
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
408 */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
409
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
410 lock = old + 1;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
411
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
412 if ((lock & ~NGX_MUTEX_LOCK_BUSY) > nthreads) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
413 ngx_log_error(NGX_LOG_ALERT, m->log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
414 "%D threads wait for mutex %p, "
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
415 "while only %ui threads are available",
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
416 lock & ~NGX_MUTEX_LOCK_BUSY, m, nthreads);
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
417 return NGX_ERROR;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
418 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
419
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
420 if (ngx_atomic_cmp_set(&m->lock, old, lock)) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
421
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
422 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
423 "wait mutex %p lock:%XD", m, m->lock);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
424
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
425 /*
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
426 * The number of the waiting threads has been increased
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
427 * and we would wait on the SysV semaphore.
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
428 * A semaphore should wake up us more efficiently than
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
429 * a simple sched_yield() or usleep().
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
430 */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
431
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
432 op.sem_num = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
433 op.sem_op = -1;
375
744ccb59062d nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 372
diff changeset
434 op.sem_flg = 0;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
435
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
436 if (semop(m->semid, &op, 1) == -1) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
437 ngx_log_error(NGX_LOG_ALERT, m->log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
438 "semop() failed while waiting on mutex %p", m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
439 return NGX_ERROR;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
440 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
441
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
442 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
443 "mutex waked up %p lock:%XD", m, m->lock);
372
c9fdfccebc49 nginx-0.0.7-2004-06-29-01:03:14 import
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
444
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
445 tries = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
446 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
447 continue;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
448 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
449
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
450 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
451
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
452 } else {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
453 lock = old | NGX_MUTEX_LOCK_BUSY;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
454
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
455 if (ngx_atomic_cmp_set(&m->lock, old, lock)) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
456
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
457 /* we locked the mutex */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
458
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
459 break;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
460 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
461
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
462 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
463 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
464
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
465 if (tries++ > 1000) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
466
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
467 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
468 "mutex %p is contested", m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
469
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
470 /* the mutex is probably contested so we are giving up now */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
471
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
472 sched_yield();
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
473
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
474 tries = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
475 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
476 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
477 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
478
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
479 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
480 "mutex %p is locked, lock:%XD", m, m->lock);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
481
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
482 return NGX_OK;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
483 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
484
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
485
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
486 ngx_int_t ngx_mutex_unlock(ngx_mutex_t *m)
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
487 {
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
488 uint32_t lock, old;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
489 struct sembuf op;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
490
271
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
491 if (!ngx_threaded) {
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
492 return NGX_OK;
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
493 }
e16dfb9b9afa nginx-0.0.2-2004-02-26-20:10:01 import
Igor Sysoev <igor@sysoev.ru>
parents: 270
diff changeset
494
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
495 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
496
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
497 if (!(old & NGX_MUTEX_LOCK_BUSY)) {
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 271
diff changeset
498 ngx_log_error(NGX_LOG_ALERT, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
499 "trying to unlock the free mutex %p", m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
500 return NGX_ERROR;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
501 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
502
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
503 /* free the mutex */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
504
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
505 #if 0
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
506 ngx_log_debug2(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
507 "unlock mutex %p lock:%XD", m, old);
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
508 #endif
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
509
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
510 for ( ;; ) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
511 lock = old & ~NGX_MUTEX_LOCK_BUSY;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
512
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
513 if (ngx_atomic_cmp_set(&m->lock, old, lock)) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
514 break;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
515 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
516
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
517 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
518 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
519
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
520 if (m->semid == -1) {
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
521 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
522 "mutex %p is unlocked", m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
523
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
524 return NGX_OK;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
525 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
526
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
527 /* check whether we need to wake up a waiting thread */
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
528
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
529 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
530
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
531 for ( ;; ) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
532 if (old & NGX_MUTEX_LOCK_BUSY) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
533
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
534 /* the mutex is just locked by another thread */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
535
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
536 break;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
537 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
538
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
539 if (old == 0) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
540 break;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
541 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
542
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
543 /* there are the waiting threads */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
544
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
545 lock = old - 1;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
546
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
547 if (ngx_atomic_cmp_set(&m->lock, old, lock)) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
548
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
549 /* wake up the thread that waits on semaphore */
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
550
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
551 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
552 "wake up mutex %p", m);
372
c9fdfccebc49 nginx-0.0.7-2004-06-29-01:03:14 import
Igor Sysoev <igor@sysoev.ru>
parents: 371
diff changeset
553
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
554 op.sem_num = 0;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
555 op.sem_op = 1;
375
744ccb59062d nginx-0.0.7-2004-07-02-19:54:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 372
diff changeset
556 op.sem_flg = 0;
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
557
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
558 if (semop(m->semid, &op, 1) == -1) {
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
559 ngx_log_error(NGX_LOG_ALERT, m->log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
560 "semop() failed while waking up on mutex %p", m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
561 return NGX_ERROR;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
562 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
563
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
564 break;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
565 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
566
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
567 old = m->lock;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
568 }
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
569
379
73688d5d7fc3 nginx-0.0.7-2004-07-06-20:12:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 377
diff changeset
570 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
571 "mutex %p is unlocked", m);
266
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
572
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
573 return NGX_OK;
5238e93961a1 nginx-0.0.2-2004-02-23-23:57:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 208
diff changeset
574 }
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
575
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
576
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
577 ngx_cond_t *ngx_cond_init(ngx_log_t *log)
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
578 {
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
579 ngx_cond_t *cv;
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
580
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
581 cv = ngx_alloc(sizeof(ngx_cond_t), log);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
582 if (cv == NULL) {
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
583 return NULL;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
584 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
585
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
586 cv->signo = NGX_CV_SIGNAL;
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
587 cv->tid = -1;
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
588 cv->log = log;
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
589 cv->kq = -1;
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
590
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
591 return cv;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
592 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
593
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
594
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
595 void ngx_cond_destroy(ngx_cond_t *cv)
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
596 {
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
597 if (close(cv->kq) == -1) {
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
598 ngx_log_error(NGX_LOG_ALERT, cv->log, ngx_errno,
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
599 "kqueue close() failed");
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
600 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
601
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
602 ngx_free(cv);
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
603 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
604
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
605
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
606 ngx_int_t ngx_cond_wait(ngx_cond_t *cv, ngx_mutex_t *m)
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
607 {
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
608 int n;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
609 ngx_err_t err;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
610 struct kevent kev;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
611 struct timespec ts;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
612
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
613 if (cv->kq == -1) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
614
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
615 /*
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
616 * We have to add the EVFILT_SIGNAL filter in the rfork()ed thread.
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
617 * Otherwise the thread would not get a signal event.
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
618 *
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
619 * However, we have not to open the kqueue in the thread,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
620 * it is simply handy do it together.
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
621 */
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
622
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
623 cv->kq = kqueue();
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
624 if (cv->kq == -1) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
625 ngx_log_error(NGX_LOG_ALERT, cv->log, ngx_errno, "kqueue() failed");
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
626 return NGX_ERROR;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
627 }
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
628
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
629 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cv->log, 0,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
630 "cv kq:%d signo:%d", cv->kq, cv->signo);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
631
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
632 kev.ident = cv->signo;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
633 kev.filter = EVFILT_SIGNAL;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
634 kev.flags = EV_ADD;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
635 kev.fflags = 0;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
636 kev.data = 0;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
637 kev.udata = NULL;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
638
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
639 ts.tv_sec = 0;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
640 ts.tv_nsec = 0;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
641
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
642 if (kevent(cv->kq, &kev, 1, NULL, 0, &ts) == -1) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
643 ngx_log_error(NGX_LOG_ALERT, cv->log, ngx_errno, "kevent() failed");
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
644 return NGX_ERROR;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
645 }
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
646
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
647 cv->tid = ngx_thread_self();
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
648 }
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
649
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
650 if (ngx_mutex_unlock(m) == NGX_ERROR) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
651 return NGX_ERROR;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
652 }
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
653
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
654 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cv->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
655 "cv %p wait, kq:%d, signo:%d", cv, cv->kq, cv->signo);
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
656
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
657 for ( ;; ) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
658 n = kevent(cv->kq, NULL, 0, &kev, 1, NULL);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
659
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
660 ngx_log_debug2(NGX_LOG_DEBUG_CORE, cv->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
661 "cv %p kevent: %d", cv, n);
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
662
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
663 if (n == -1) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
664 err = ngx_errno;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
665 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
666 cv->log, ngx_errno,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
667 "kevent() failed while waiting condition variable %p",
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
668 cv);
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
669
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
670 if (err == NGX_EINTR) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
671 break;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
672 }
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
673
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
674 return NGX_ERROR;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
675 }
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
676
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
677 if (n == 0) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
678 ngx_log_error(NGX_LOG_ALERT, cv->log, 0,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
679 "kevent() returned no events "
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
680 "while waiting condition variable %p",
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
681 cv);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
682 continue;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
683 }
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
684
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
685 if (kev.filter != EVFILT_SIGNAL) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
686 ngx_log_error(NGX_LOG_ALERT, cv->log, 0,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
687 "kevent() returned unexpected events: %d "
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
688 "while waiting condition variable %p",
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
689 kev.filter, cv);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
690 continue;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
691 }
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
692
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
693 if (kev.ident != (uintptr_t) cv->signo) {
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
694 ngx_log_error(NGX_LOG_ALERT, cv->log, 0,
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
695 "kevent() returned unexpected signal: %d ",
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
696 "while waiting condition variable %p",
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
697 kev.ident, cv);
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
698 continue;
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
699 }
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
700
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
701 break;
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
702 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
703
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
704 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, "cv %p is waked up", cv);
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
705
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
706 if (ngx_mutex_lock(m) == NGX_ERROR) {
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
707 return NGX_ERROR;
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
708 }
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
709
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
710 return NGX_OK;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
711 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
712
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
713
371
780e93985b93 nginx-0.0.7-2004-06-28-20:05:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 370
diff changeset
714 ngx_int_t ngx_cond_signal(ngx_cond_t *cv)
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
715 {
377
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
716 ngx_err_t err;
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
717
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
718 ngx_log_debug3(NGX_LOG_DEBUG_CORE, cv->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
719 "cv %p to signal %P %d",
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
720 cv, cv->tid, cv->signo);
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
721
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
722 if (cv->tid == -1) {
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
723 return NGX_OK;
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
724 }
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
725
376
d0451e402e27 nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 375
diff changeset
726 if (kill(cv->tid, cv->signo) == -1) {
377
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
727
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
728 err = ngx_errno;
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
729
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
730 ngx_log_error(NGX_LOG_ALERT, cv->log, err,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
731 "kill() failed while signaling condition variable %p", cv);
377
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
732
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
733 if (err == NGX_ESRCH) {
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
734 cv->tid = -1;
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
735 }
41437e4fd9b4 nginx-0.0.7-2004-07-05-19:08:23 import
Igor Sysoev <igor@sysoev.ru>
parents: 376
diff changeset
736
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
737 return NGX_ERROR;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
738 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
739
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
740 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, "cv %p is signaled", cv);
370
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
741
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
742 return NGX_OK;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents: 346
diff changeset
743 }