Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_pthread_thread.c @ 376:d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 05 Jul 2004 06:55:54 +0000 |
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children | 73688d5d7fc3 |
rev | line source |
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376
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
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1 |
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2 /* |
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3 * Copyright (C) 2002-2004 Igor Sysoev, http://sysoev.ru/en/ |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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nginx-0.0.7-2004-07-05-10:55:54 import
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8 #include <ngx_core.h> |
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9 |
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10 |
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11 static ngx_uint_t nthreads; |
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12 static ngx_uint_t max_threads; |
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13 |
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14 |
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15 static pthread_attr_t thr_attr; |
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16 |
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17 |
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18 int ngx_create_thread(ngx_tid_t *tid, void* (*func)(void *arg), void *arg, |
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19 ngx_log_t *log) |
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20 { |
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21 int err; |
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22 |
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23 if (nthreads >= max_threads) { |
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24 ngx_log_error(NGX_LOG_CRIT, log, 0, |
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25 "no more than %d threads can be created", max_threads); |
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26 return NGX_ERROR; |
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27 } |
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28 |
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29 err = pthread_create(tid, &thr_attr, func, arg); |
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30 |
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31 if (err != 0) { |
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32 ngx_log_error(NGX_LOG_ALERT, log, err, "pthread_create() failed"); |
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33 return err; |
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34 } |
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35 |
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36 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
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nginx-0.0.7-2004-07-05-10:55:54 import
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37 "thread is created: " TID_T_FMT, *tid); |
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38 |
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39 nthreads++; |
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40 |
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41 return err; |
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42 } |
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43 |
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44 |
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45 ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle) |
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46 { |
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47 int err; |
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48 |
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49 max_threads = n; |
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50 |
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51 err = pthread_attr_init(&thr_attr); |
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52 |
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53 if (err != 0) { |
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54 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, |
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55 "pthread_attr_init() failed"); |
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56 return NGX_ERROR; |
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57 } |
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58 |
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59 err = pthread_attr_setstacksize(&thr_attr, size); |
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60 |
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61 if (err != 0) { |
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62 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, |
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63 "pthread_attr_setstacksize() failed"); |
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64 return NGX_ERROR; |
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65 } |
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66 |
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67 ngx_threaded = 1; |
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68 |
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69 return NGX_OK; |
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70 } |
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71 |
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72 |
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73 ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, uint flags) |
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74 { |
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75 int err; |
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76 ngx_mutex_t *m; |
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77 |
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78 if (!(m = ngx_alloc(sizeof(ngx_mutex_t), log))) { |
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79 return NULL; |
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80 } |
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81 |
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82 m->log = log; |
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83 |
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84 err = pthread_mutex_init(&m->mutex, NULL); |
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85 |
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86 if (err != 0) { |
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87 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
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88 "pthread_mutex_init() failed"); |
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89 return NULL; |
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90 } |
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91 |
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92 return m; |
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93 } |
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94 |
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95 |
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96 void ngx_mutex_destroy(ngx_mutex_t *m) |
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97 { |
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98 int err; |
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99 |
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100 err = pthread_mutex_destroy(&m->mutex); |
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101 |
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102 if (err != 0) { |
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103 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
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104 "pthread_mutex_destroy(" PTR_FMT ") failed", m); |
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105 } |
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106 |
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107 ngx_free(m); |
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108 } |
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109 |
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110 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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111 ngx_int_t ngx_mutex_lock(ngx_mutex_t *m) |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
112 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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113 int err; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
114 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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115 if (!ngx_threaded) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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116 return NGX_OK; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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117 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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118 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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119 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, "lock mutex " PTR_FMT, m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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120 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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121 err = pthread_mutex_lock(&m->mutex); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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122 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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123 if (err != 0) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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124 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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125 "pthread_mutex_lock(" PTR_FMT ") failed", m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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126 return NGX_ERROR; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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127 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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128 |
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129 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, |
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Igor Sysoev <igor@sysoev.ru>
parents:
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130 "mutex " PTR_FMT " is locked", m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
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131 |
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Igor Sysoev <igor@sysoev.ru>
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132 return NGX_OK; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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133 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
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134 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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135 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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136 ngx_int_t ngx_mutex_trylock(ngx_mutex_t *m) |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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137 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
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138 int err; |
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Igor Sysoev <igor@sysoev.ru>
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139 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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140 if (!ngx_threaded) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
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141 return NGX_OK; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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142 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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143 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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144 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, "try lock mutex " PTR_FMT, m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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145 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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146 err = pthread_mutex_trylock(&m->mutex); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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147 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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148 if (err != 0) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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149 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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150 "pthread_mutex_trylock(" PTR_FMT ") failed", m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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151 return NGX_ERROR; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
152 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
153 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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154 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
155 "mutex " PTR_FMT " is locked", m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
156 |
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Igor Sysoev <igor@sysoev.ru>
parents:
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157 return NGX_OK; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
158 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
159 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
160 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
161 ngx_int_t ngx_mutex_unlock(ngx_mutex_t *m) |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
162 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
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|
163 int err; |
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Igor Sysoev <igor@sysoev.ru>
parents:
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|
164 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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165 if (!ngx_threaded) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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166 return NGX_OK; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
167 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
168 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
169 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, "unlock mutex " PTR_FMT, m); |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
170 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
171 err = pthread_mutex_unlock(&m->mutex); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
172 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
173 if (err != 0) { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
174 ngx_log_error(NGX_LOG_ALERT, m->log, err, |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 "pthread_mutex_unlock(" PTR_FMT ") failed", m); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
176 return NGX_ERROR; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
177 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
178 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
179 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
180 "mutex " PTR_FMT " is unlocked", m); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
181 |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
182 return NGX_OK; |
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
183 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
184 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
185 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
186 ngx_cond_t *ngx_cond_init(ngx_log_t *log) |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
187 { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
188 int err; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
189 ngx_cond_t *cv; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
190 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
191 if (!(cv = ngx_alloc(sizeof(ngx_cond_t), log))) { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
192 return NULL; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
193 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
194 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
195 cv->log = log; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
196 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
197 err = pthread_cond_init(&cv->cond, NULL); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
198 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
199 if (err != 0) { |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
200 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
201 "pthread_cond_init() failed"); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
202 return NULL; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
203 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
204 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
205 return cv; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
206 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
207 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
208 |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
209 void ngx_cond_destroy(ngx_cond_t *cv) |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
210 { |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
211 int err; |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
212 |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
213 err = pthread_cond_destroy(&cv->cond); |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
214 |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
215 if (err != 0) { |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
217 "pthread_cond_destroy(" PTR_FMT ") failed", cv); |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
218 } |
d0451e402e27
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
219 |
d0451e402e27
nginx-0.0.7-2004-07-05-10:55:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
220 ngx_free(cv); |
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221 } |
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222 |
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223 |
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224 ngx_int_t ngx_cond_wait(ngx_cond_t *cv, ngx_mutex_t *m) |
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225 { |
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226 int err; |
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227 |
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228 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, |
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229 "cv " PTR_FMT " wait", cv); |
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230 |
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231 err = pthread_cond_wait(&cv->cond, &m->mutex); |
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232 |
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233 if (err != 0) { |
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234 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
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235 "pthread_cond_wait(" PTR_FMT ") failed", cv); |
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236 return NGX_ERROR; |
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237 } |
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238 |
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239 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, |
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Igor Sysoev <igor@sysoev.ru>
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240 "cv " PTR_FMT " is waked up", cv); |
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241 |
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242 ngx_log_debug1(NGX_LOG_DEBUG_CORE, m->log, 0, |
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243 "mutex " PTR_FMT " is locked", m); |
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244 |
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245 return NGX_OK; |
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246 } |
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247 |
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248 |
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249 ngx_int_t ngx_cond_signal(ngx_cond_t *cv) |
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250 { |
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251 int err; |
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252 |
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253 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, |
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254 "cv " PTR_FMT " to signal", cv); |
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255 |
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256 err = pthread_cond_signal(&cv->cond); |
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Igor Sysoev <igor@sysoev.ru>
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257 |
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258 if (err != 0) { |
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259 ngx_log_error(NGX_LOG_ALERT, cv->log, err, |
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260 "pthread_cond_signal(" PTR_FMT ") failed", cv); |
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261 return NGX_ERROR; |
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Igor Sysoev <igor@sysoev.ru>
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262 } |
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Igor Sysoev <igor@sysoev.ru>
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263 |
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Igor Sysoev <igor@sysoev.ru>
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264 ngx_log_debug1(NGX_LOG_DEBUG_CORE, cv->log, 0, |
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Igor Sysoev <igor@sysoev.ru>
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265 "cv " PTR_FMT " is signaled", cv); |
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Igor Sysoev <igor@sysoev.ru>
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266 |
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267 return NGX_OK; |
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268 } |