Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_pthread_thread.c @ 5327:6b479db5b52b
Format specifier fixes in error logging.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Tue, 20 Aug 2013 20:47:16 +0400 |
parents | d620f497c50f |
children |
rev | line source |
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376
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nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
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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 |
4412 | 4 * Copyright (C) Nginx, Inc. |
376
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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nginx-0.0.7-2004-07-05-10:55:54 import
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9 #include <ngx_core.h> |
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10 |
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11 |
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12 static ngx_uint_t nthreads; |
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13 static ngx_uint_t max_threads; |
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14 |
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15 |
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16 static pthread_attr_t thr_attr; |
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17 |
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18 |
563 | 19 ngx_err_t |
20 ngx_create_thread(ngx_tid_t *tid, ngx_thread_value_t (*func)(void *arg), | |
21 void *arg, ngx_log_t *log) | |
376
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22 { |
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23 int err; |
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24 |
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25 if (nthreads >= max_threads) { |
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26 ngx_log_error(NGX_LOG_CRIT, log, 0, |
461 | 27 "no more than %ui threads can be created", max_threads); |
376
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28 return NGX_ERROR; |
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29 } |
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30 |
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31 err = pthread_create(tid, &thr_attr, func, arg); |
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32 |
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33 if (err != 0) { |
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34 ngx_log_error(NGX_LOG_ALERT, log, err, "pthread_create() failed"); |
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35 return err; |
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36 } |
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37 |
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38 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
461 | 39 "thread is created: " NGX_TID_T_FMT, *tid); |
376
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40 |
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41 nthreads++; |
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42 |
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43 return err; |
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44 } |
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45 |
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46 |
563 | 47 ngx_int_t |
48 ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle) | |
577 | 49 { |
376
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50 int err; |
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51 |
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52 max_threads = n; |
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53 |
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54 err = pthread_attr_init(&thr_attr); |
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55 |
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56 if (err != 0) { |
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57 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, |
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58 "pthread_attr_init() failed"); |
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59 return NGX_ERROR; |
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60 } |
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61 |
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62 err = pthread_attr_setstacksize(&thr_attr, size); |
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63 |
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64 if (err != 0) { |
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65 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, |
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66 "pthread_attr_setstacksize() failed"); |
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67 return NGX_ERROR; |
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68 } |
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69 |
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70 ngx_threaded = 1; |
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71 |
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72 return NGX_OK; |
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73 } |
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74 |
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75 |
563 | 76 ngx_mutex_t * |
77 ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags) | |
376
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78 { |
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79 int err; |
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80 ngx_mutex_t *m; |
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81 |
501 | 82 m = ngx_alloc(sizeof(ngx_mutex_t), log); |
83 if (m == NULL) { | |
376
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84 return NULL; |
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85 } |
577 | 86 |
376
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87 m->log = log; |
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88 |
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89 err = pthread_mutex_init(&m->mutex, NULL); |
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90 |
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91 if (err != 0) { |
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92 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
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93 "pthread_mutex_init() failed"); |
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94 return NULL; |
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95 } |
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96 |
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97 return m; |
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98 } |
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99 |
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100 |
563 | 101 void |
102 ngx_mutex_destroy(ngx_mutex_t *m) | |
376
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103 { |
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104 int err; |
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105 |
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106 err = pthread_mutex_destroy(&m->mutex); |
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107 |
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108 if (err != 0) { |
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109 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
461 | 110 "pthread_mutex_destroy(%p) failed", m); |
376
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111 } |
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112 |
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113 ngx_free(m); |
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114 } |
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115 |
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116 |
563 | 117 void |
118 ngx_mutex_lock(ngx_mutex_t *m) | |
376
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119 { |
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120 int err; |
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121 |
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122 if (!ngx_threaded) { |
563 | 123 return; |
376
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124 } |
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125 |
461 | 126 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "lock mutex %p", m); |
376
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127 |
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parents:
diff
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128 err = pthread_mutex_lock(&m->mutex); |
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parents:
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129 |
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130 if (err != 0) { |
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parents:
diff
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131 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
461 | 132 "pthread_mutex_lock(%p) failed", m); |
563 | 133 ngx_abort(); |
376
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parents:
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134 } |
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parents:
diff
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135 |
461 | 136 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "mutex %p is locked", m); |
376
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parents:
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137 |
563 | 138 return; |
376
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parents:
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139 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
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140 |
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parents:
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141 |
563 | 142 ngx_int_t |
143 ngx_mutex_trylock(ngx_mutex_t *m) | |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
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144 { |
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145 int err; |
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146 |
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147 if (!ngx_threaded) { |
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148 return NGX_OK; |
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parents:
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149 } |
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150 |
461 | 151 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "try lock mutex %p", m); |
376
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parents:
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152 |
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153 err = pthread_mutex_trylock(&m->mutex); |
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parents:
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154 |
391
b670db10cbbd
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Igor Sysoev <igor@sysoev.ru>
parents:
379
diff
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155 if (err == NGX_EBUSY) { |
b670db10cbbd
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Igor Sysoev <igor@sysoev.ru>
parents:
379
diff
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156 return NGX_AGAIN; |
b670db10cbbd
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Igor Sysoev <igor@sysoev.ru>
parents:
379
diff
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157 } |
b670db10cbbd
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Igor Sysoev <igor@sysoev.ru>
parents:
379
diff
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|
158 |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
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159 if (err != 0) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
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160 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
461 | 161 "pthread_mutex_trylock(%p) failed", m); |
563 | 162 ngx_abort(); |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
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163 } |
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164 |
461 | 165 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "mutex %p is locked", m); |
376
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166 |
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167 return NGX_OK; |
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parents:
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168 } |
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parents:
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169 |
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170 |
563 | 171 void |
172 ngx_mutex_unlock(ngx_mutex_t *m) | |
376
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173 { |
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174 int err; |
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175 |
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176 if (!ngx_threaded) { |
563 | 177 return; |
376
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Igor Sysoev <igor@sysoev.ru>
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178 } |
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179 |
461 | 180 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "unlock mutex %p", m); |
376
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181 |
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182 err = pthread_mutex_unlock(&m->mutex); |
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183 |
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184 if (err != 0) { |
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parents:
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185 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
461 | 186 "pthread_mutex_unlock(%p) failed", m); |
563 | 187 ngx_abort(); |
376
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188 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
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189 |
461 | 190 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "mutex %p is unlocked", m); |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
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|
191 |
563 | 192 return; |
376
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193 } |
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194 |
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195 |
563 | 196 ngx_cond_t * |
197 ngx_cond_init(ngx_log_t *log) | |
376
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198 { |
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199 int err; |
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200 ngx_cond_t *cv; |
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diff
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201 |
501 | 202 cv = ngx_alloc(sizeof(ngx_cond_t), log); |
203 if (cv == NULL) { | |
376
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204 return NULL; |
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Igor Sysoev <igor@sysoev.ru>
parents:
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205 } |
577 | 206 |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
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207 cv->log = log; |
d0451e402e27
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208 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
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209 err = pthread_cond_init(&cv->cond, NULL); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
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210 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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211 if (err != 0) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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212 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
213 "pthread_cond_init() failed"); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
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214 return NULL; |
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Igor Sysoev <igor@sysoev.ru>
parents:
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215 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
216 |
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Igor Sysoev <igor@sysoev.ru>
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217 return cv; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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218 } |
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Igor Sysoev <igor@sysoev.ru>
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diff
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|
219 |
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220 |
563 | 221 void |
222 ngx_cond_destroy(ngx_cond_t *cv) | |
376
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
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diff
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223 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
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diff
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224 int err; |
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225 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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226 err = pthread_cond_destroy(&cv->cond); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
227 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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228 if (err != 0) { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
229 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
461 | 230 "pthread_cond_destroy(%p) failed", cv); |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
231 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
232 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
233 ngx_free(cv); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
234 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
235 |
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parents:
diff
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|
236 |
563 | 237 ngx_int_t |
238 ngx_cond_wait(ngx_cond_t *cv, ngx_mutex_t *m) | |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
239 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
240 int err; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
241 |
461 | 242 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, "cv %p wait", cv); |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
243 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
244 err = pthread_cond_wait(&cv->cond, &m->mutex); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
245 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
246 if (err != 0) { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
247 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
461 | 248 "pthread_cond_wait(%p) failed", cv); |
376
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Igor Sysoev <igor@sysoev.ru>
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diff
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249 return NGX_ERROR; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
250 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
251 |
461 | 252 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, "cv %p is waked up", cv); |
376
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
253 |
461 | 254 ngx_log_debug1(NGX_LOG_DEBUG_MUTEX, m->log, 0, "mutex %p is locked", m); |
376
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
255 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
256 return NGX_OK; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
257 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
258 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
259 |
563 | 260 ngx_int_t |
261 ngx_cond_signal(ngx_cond_t *cv) | |
376
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
262 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
263 int err; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
264 |
461 | 265 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, "cv %p to signal", cv); |
376
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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266 |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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267 err = pthread_cond_signal(&cv->cond); |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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268 |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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269 if (err != 0) { |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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270 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
461 | 271 "pthread_cond_signal(%p) failed", cv); |
376
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
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272 return NGX_ERROR; |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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273 } |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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274 |
461 | 275 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, "cv %p is signaled", cv); |
376
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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276 |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
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277 return NGX_OK; |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
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278 } |