0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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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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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10
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11
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160
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12 static ngx_int_t ngx_test_lockfile(u_char *file, ngx_log_t *log);
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154
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13 static void ngx_destroy_cycle_pools(ngx_conf_t *conf);
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28
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14 static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2);
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0
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15 static void ngx_clean_old_cycles(ngx_event_t *ev);
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16
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17
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18 volatile ngx_cycle_t *ngx_cycle;
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19 ngx_array_t ngx_old_cycles;
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20
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21 static ngx_pool_t *ngx_temp_pool;
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22 static ngx_event_t ngx_cleaner_event;
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23
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24 ngx_uint_t ngx_test_config;
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25
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26 #if (NGX_THREADS)
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27 ngx_tls_key_t ngx_core_tls_key;
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28 #endif
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29
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30
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31 /* STUB NAME */
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32 static ngx_connection_t dumb;
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33 /* STUB */
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34
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35 #ifdef NGX_ERROR_LOG_PATH
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36 static ngx_str_t error_log = ngx_string(NGX_ERROR_LOG_PATH);
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37 #else
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38 static ngx_str_t error_log = ngx_null_string;
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39 #endif
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40
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41
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112
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42 ngx_cycle_t *
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43 ngx_init_cycle(ngx_cycle_t *old_cycle)
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0
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44 {
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154
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45 void *rv;
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258
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46 u_char *lock_file;
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160
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47 ngx_uint_t i, n;
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154
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48 ngx_log_t *log;
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49 ngx_conf_t conf;
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50 ngx_pool_t *pool;
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51 ngx_cycle_t *cycle, **old;
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272
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52 ngx_shm_zone_t *shm_zone, *oshm_zone;
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258
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53 ngx_slab_pool_t *shpool;
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54 ngx_list_part_t *part, *opart;
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154
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55 ngx_open_file_t *file;
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56 ngx_listening_t *ls, *nls;
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57 ngx_core_conf_t *ccf;
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58 ngx_core_module_t *module;
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160
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59 #if !(WIN32)
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60 ngx_core_conf_t *old_ccf;
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61 #endif
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0
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62
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63 log = old_cycle->log;
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64
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56
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65 pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log);
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50
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66 if (pool == NULL) {
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0
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67 return NULL;
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68 }
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69 pool->log = log;
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70
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50
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71 cycle = ngx_pcalloc(pool, sizeof(ngx_cycle_t));
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72 if (cycle == NULL) {
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0
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73 ngx_destroy_pool(pool);
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74 return NULL;
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75 }
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50
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76
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0
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77 cycle->pool = pool;
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78 cycle->log = log;
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79 cycle->old_cycle = old_cycle;
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80 cycle->root.len = sizeof(NGX_PREFIX) - 1;
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81 cycle->root.data = (u_char *) NGX_PREFIX;
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82
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83
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154
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84 cycle->conf_file.len = old_cycle->conf_file.len;
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85 cycle->conf_file.data = ngx_palloc(pool, old_cycle->conf_file.len + 1);
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86 if (cycle->conf_file.data == NULL) {
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87 ngx_destroy_pool(pool);
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88 return NULL;
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89 }
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90 ngx_cpystrn(cycle->conf_file.data, old_cycle->conf_file.data,
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91 old_cycle->conf_file.len + 1);
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92
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93
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0
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94 n = old_cycle->pathes.nelts ? old_cycle->pathes.nelts : 10;
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50
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95
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96 cycle->pathes.elts = ngx_pcalloc(pool, n * sizeof(ngx_path_t *));
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97 if (cycle->pathes.elts == NULL) {
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0
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98 ngx_destroy_pool(pool);
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99 return NULL;
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100 }
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50
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101
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0
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102 cycle->pathes.nelts = 0;
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103 cycle->pathes.size = sizeof(ngx_path_t *);
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104 cycle->pathes.nalloc = n;
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105 cycle->pathes.pool = pool;
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106
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107
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108 if (old_cycle->open_files.part.nelts) {
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109 n = old_cycle->open_files.part.nelts;
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110 for (part = old_cycle->open_files.part.next; part; part = part->next) {
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111 n += part->nelts;
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112 }
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113
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114 } else {
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115 n = 20;
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116 }
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117
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118 if (ngx_list_init(&cycle->open_files, pool, n, sizeof(ngx_open_file_t))
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154
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119 == NGX_ERROR)
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0
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120 {
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121 ngx_destroy_pool(pool);
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122 return NULL;
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123 }
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124
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125
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258
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126 if (old_cycle->shared_memory.part.nelts) {
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127 n = old_cycle->shared_memory.part.nelts;
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128 for (part = old_cycle->shared_memory.part.next; part; part = part->next)
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129 {
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130 n += part->nelts;
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131 }
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132
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133 } else {
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134 n = 1;
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135 }
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136
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137 if (ngx_list_init(&cycle->shared_memory, pool, n, sizeof(ngx_shm_zone_t))
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138 == NGX_ERROR)
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139 {
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140 ngx_destroy_pool(pool);
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141 return NULL;
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142 }
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143
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144
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50
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145 cycle->new_log = ngx_log_create_errlog(cycle, NULL);
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146 if (cycle->new_log == NULL) {
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0
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147 ngx_destroy_pool(pool);
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148 return NULL;
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149 }
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150
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151 cycle->new_log->file->name = error_log;
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152
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153
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154 n = old_cycle->listening.nelts ? old_cycle->listening.nelts : 10;
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50
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155
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0
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156 cycle->listening.elts = ngx_pcalloc(pool, n * sizeof(ngx_listening_t));
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157 if (cycle->listening.elts == NULL) {
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158 ngx_destroy_pool(pool);
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159 return NULL;
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160 }
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50
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161
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0
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162 cycle->listening.nelts = 0;
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163 cycle->listening.size = sizeof(ngx_listening_t);
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164 cycle->listening.nalloc = n;
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165 cycle->listening.pool = pool;
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166
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167
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168 cycle->conf_ctx = ngx_pcalloc(pool, ngx_max_module * sizeof(void *));
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169 if (cycle->conf_ctx == NULL) {
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170 ngx_destroy_pool(pool);
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171 return NULL;
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172 }
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173
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174
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175 for (i = 0; ngx_modules[i]; i++) {
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176 if (ngx_modules[i]->type != NGX_CORE_MODULE) {
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177 continue;
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178 }
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179
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180 module = ngx_modules[i]->ctx;
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181
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182 if (module->create_conf) {
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183 rv = module->create_conf(cycle);
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184 if (rv == NGX_CONF_ERROR) {
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185 ngx_destroy_pool(pool);
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186 return NULL;
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187 }
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188 cycle->conf_ctx[ngx_modules[i]->index] = rv;
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189 }
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190 }
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191
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192
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193 ngx_memzero(&conf, sizeof(ngx_conf_t));
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194 /* STUB: init array ? */
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50
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195 conf.args = ngx_array_create(pool, 10, sizeof(ngx_str_t));
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0
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196 if (conf.args == NULL) {
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197 ngx_destroy_pool(pool);
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198 return NULL;
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199 }
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200
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142
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201 conf.temp_pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log);
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202 if (conf.temp_pool == NULL) {
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203 ngx_destroy_pool(pool);
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204 return NULL;
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205 }
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206
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154
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207
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0
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208 conf.ctx = cycle->conf_ctx;
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209 conf.cycle = cycle;
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210 conf.pool = pool;
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211 conf.log = log;
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212 conf.module_type = NGX_CORE_MODULE;
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213 conf.cmd_type = NGX_MAIN_CONF;
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214
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4
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215 #if 0
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216 log->log_level = NGX_LOG_DEBUG_ALL;
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217 #endif
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0
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218
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219 if (ngx_conf_parse(&conf, &cycle->conf_file) != NGX_CONF_OK) {
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154
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220 ngx_destroy_cycle_pools(&conf);
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0
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221 return NULL;
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222 }
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223
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224 if (ngx_test_config) {
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225 ngx_log_error(NGX_LOG_INFO, log, 0,
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226 "the configuration file %s syntax is ok",
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227 cycle->conf_file.data);
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228 }
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229
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230
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231 for (i = 0; ngx_modules[i]; i++) {
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232 if (ngx_modules[i]->type != NGX_CORE_MODULE) {
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233 continue;
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234 }
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235
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236 module = ngx_modules[i]->ctx;
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237
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238 if (module->init_conf) {
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239 if (module->init_conf(cycle, cycle->conf_ctx[ngx_modules[i]->index])
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142
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240 == NGX_CONF_ERROR)
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0
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241 {
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154
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242 ngx_destroy_cycle_pools(&conf);
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0
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243 return NULL;
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244 }
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245 }
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246 }
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247
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248
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160
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249 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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0
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250
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10
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251 #if !(NGX_WIN32)
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160
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252
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253 if (ngx_test_config) {
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254
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255 if (ngx_create_pidfile(&ccf->pid, log) != NGX_OK) {
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256 goto failed;
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257 }
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258
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259 } else if (!ngx_is_init_cycle(old_cycle)) {
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260
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261 /*
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262 * we do not create the pid file in the first ngx_init_cycle() call
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263 * because we need to write the demonized process pid
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264 */
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265
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266 old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx,
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267 ngx_core_module);
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268 if (ccf->pid.len != old_ccf->pid.len
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269 || ngx_strcmp(ccf->pid.data, old_ccf->pid.data) != 0)
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270 {
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271 /* new pid file name */
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272
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273 if (ngx_create_pidfile(&ccf->pid, log) != NGX_OK) {
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274 goto failed;
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275 }
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276
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277 ngx_delete_pidfile(old_cycle);
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278 }
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0
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279 }
|
160
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280
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0
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281 #endif
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282
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283
|
258
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284 if (ngx_test_lockfile(cycle->lock_file.data, log) != NGX_OK) {
|
160
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285 goto failed;
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286 }
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16
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287
|
160
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288
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289 if (ngx_create_pathes(cycle, ccf->user) != NGX_OK) {
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290 goto failed;
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16
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291 }
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292
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293
|
160
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294 /* open the new files */
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0
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295
|
160
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296 part = &cycle->open_files.part;
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297 file = part->elts;
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0
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298
|
160
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299 for (i = 0; /* void */ ; i++) {
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0
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300
|
160
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301 if (i >= part->nelts) {
|
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302 if (part->next == NULL) {
|
0
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303 break;
|
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304 }
|
160
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305 part = part->next;
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306 file = part->elts;
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307 i = 0;
|
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308 }
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309
|
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310 if (file[i].name.data == NULL) {
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311 continue;
|
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312 }
|
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313
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314 file[i].fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR,
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276
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315 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND,
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316 NGX_FILE_DEFAULT_ACCESS);
|
160
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317
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318 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
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319 "log: %p %d \"%s\"",
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320 &file[i], file[i].fd, file[i].name.data);
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321
|
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322 if (file[i].fd == NGX_INVALID_FILE) {
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323 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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324 ngx_open_file_n " \"%s\" failed",
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325 file[i].name.data);
|
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326 goto failed;
|
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327 }
|
0
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328
|
10
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329 #if (NGX_WIN32)
|
160
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330 if (ngx_file_append_mode(file[i].fd) != NGX_OK) {
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331 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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332 ngx_file_append_mode_n " \"%s\" failed",
|
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333 file[i].name.data);
|
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334 goto failed;
|
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335 }
|
0
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336 #else
|
160
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337 if (fcntl(file[i].fd, F_SETFD, FD_CLOEXEC) == -1) {
|
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338 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
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339 "fcntl(FD_CLOEXEC) \"%s\" failed",
|
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340 file[i].name.data);
|
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341 goto failed;
|
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342 }
|
0
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343 #endif
|
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344 }
|
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345
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346 cycle->log = cycle->new_log;
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347 pool->log = cycle->new_log;
|
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348
|
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349 if (cycle->log->log_level == 0) {
|
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350 cycle->log->log_level = NGX_LOG_ERR;
|
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351 }
|
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352
|
10
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353
|
258
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354 /* create shared memory */
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355
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356 part = &cycle->shared_memory.part;
|
272
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357 shm_zone = part->elts;
|
258
|
358
|
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359 for (i = 0; /* void */ ; i++) {
|
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360
|
|
361 if (i >= part->nelts) {
|
|
362 if (part->next == NULL) {
|
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363 break;
|
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364 }
|
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365 part = part->next;
|
272
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366 shm_zone = part->elts;
|
258
|
367 i = 0;
|
|
368 }
|
|
369
|
272
|
370 if (shm_zone[i].shm.size == 0) {
|
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371 ngx_log_error(NGX_LOG_EMERG, log, 0,
|
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372 "zero size shared memory zone \"%V\"",
|
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373 &shm_zone[i].name);
|
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374 goto failed;
|
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375 }
|
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376
|
274
|
377 if (shm_zone[i].init == NULL) {
|
|
378 /* unused shared zone */
|
|
379 continue;
|
|
380 }
|
|
381
|
272
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382 shm_zone[i].shm.log = cycle->log;
|
258
|
383
|
|
384 opart = &old_cycle->shared_memory.part;
|
272
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385 oshm_zone = opart->elts;
|
258
|
386
|
|
387 for (n = 0; /* void */ ; n++) {
|
|
388
|
|
389 if (n >= opart->nelts) {
|
|
390 if (opart->next == NULL) {
|
|
391 break;
|
|
392 }
|
|
393 opart = opart->next;
|
272
|
394 oshm_zone = opart->elts;
|
258
|
395 n = 0;
|
|
396 }
|
|
397
|
272
|
398 if (shm_zone[i].name.len != oshm_zone[n].name.len) {
|
|
399 continue;
|
|
400 }
|
|
401
|
|
402 if (ngx_strncmp(shm_zone[i].name.data, oshm_zone[n].name.data,
|
|
403 shm_zone[i].name.len)
|
|
404 != 0)
|
|
405 {
|
258
|
406 continue;
|
|
407 }
|
|
408
|
272
|
409 if (shm_zone[i].shm.size == oshm_zone[n].shm.size) {
|
|
410 shm_zone[i].shm.addr = oshm_zone[n].shm.addr;
|
|
411
|
|
412 if (shm_zone[i].init(&shm_zone[i], oshm_zone[n].data)
|
|
413 != NGX_OK)
|
|
414 {
|
|
415 goto failed;
|
|
416 }
|
|
417
|
|
418 goto shm_zone_found;
|
258
|
419 }
|
|
420
|
272
|
421 ngx_shm_free(&oshm_zone[n].shm);
|
258
|
422
|
|
423 break;
|
|
424 }
|
|
425
|
272
|
426 if (ngx_shm_alloc(&shm_zone[i].shm) != NGX_OK) {
|
258
|
427 goto failed;
|
|
428 }
|
|
429
|
272
|
430 shpool = (ngx_slab_pool_t *) shm_zone[i].shm.addr;
|
258
|
431
|
272
|
432 shpool->end = shm_zone[i].shm.addr + shm_zone[i].shm.size;
|
258
|
433 shpool->min_shift = 3;
|
|
434
|
|
435 #if (NGX_HAVE_ATOMIC_OPS)
|
|
436
|
|
437 lock_file = NULL;
|
|
438
|
|
439 #else
|
|
440
|
|
441 lock_file = ngx_palloc(cycle->pool,
|
272
|
442 cycle->lock_file.len + shm_zone[i].name.len);
|
258
|
443
|
|
444 if (lock_file == NULL) {
|
|
445 goto failed;
|
|
446 }
|
|
447
|
|
448 (void) ngx_cpystrn(ngx_cpymem(lock_file, cycle->lock_file.data,
|
|
449 cycle->lock_file.len),
|
272
|
450 shm_zone[i].name.data, shm_zone[i].name.len + 1);
|
258
|
451
|
|
452 #endif
|
|
453
|
|
454 if (ngx_shmtx_create(&shpool->mutex, (void *) &shpool->lock, lock_file)
|
|
455 != NGX_OK)
|
|
456 {
|
|
457 goto failed;
|
|
458 }
|
|
459
|
|
460 ngx_slab_init(shpool);
|
|
461
|
272
|
462 if (shm_zone[i].init(&shm_zone[i], NULL) != NGX_OK) {
|
|
463 goto failed;
|
|
464 }
|
|
465
|
|
466 shm_zone_found:
|
258
|
467
|
|
468 continue;
|
|
469 }
|
|
470
|
|
471
|
160
|
472 /* handle the listening sockets */
|
10
|
473
|
160
|
474 if (old_cycle->listening.nelts) {
|
|
475 ls = old_cycle->listening.elts;
|
|
476 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
477 ls[i].remain = 0;
|
|
478 }
|
0
|
479
|
160
|
480 nls = cycle->listening.elts;
|
|
481 for (n = 0; n < cycle->listening.nelts; n++) {
|
10
|
482
|
160
|
483 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
484 if (ls[i].ignore) {
|
|
485 continue;
|
|
486 }
|
0
|
487
|
160
|
488 if (ngx_cmp_sockaddr(nls[n].sockaddr, ls[i].sockaddr) == NGX_OK)
|
|
489 {
|
|
490 nls[n].fd = ls[i].fd;
|
|
491 nls[n].previous = &ls[i];
|
|
492 ls[i].remain = 1;
|
72
|
493
|
160
|
494 if (ls[n].backlog != nls[i].backlog) {
|
|
495 nls[n].listen = 1;
|
|
496 }
|
86
|
497
|
72
|
498 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
499
|
160
|
500 /*
|
|
501 * FreeBSD, except the most recent versions,
|
|
502 * could not remove accept filter
|
|
503 */
|
|
504 nls[n].deferred_accept = ls[i].deferred_accept;
|
72
|
505
|
160
|
506 if (ls[i].accept_filter && nls[n].accept_filter) {
|
|
507 if (ngx_strcmp(ls[i].accept_filter,
|
|
508 nls[n].accept_filter)
|
|
509 != 0)
|
|
510 {
|
72
|
511 nls[n].delete_deferred = 1;
|
|
512 nls[n].add_deferred = 1;
|
|
513 }
|
160
|
514
|
|
515 } else if (ls[i].accept_filter) {
|
|
516 nls[n].delete_deferred = 1;
|
|
517
|
|
518 } else if (nls[n].accept_filter) {
|
|
519 nls[n].add_deferred = 1;
|
|
520 }
|
72
|
521 #endif
|
|
522
|
|
523 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
524
|
160
|
525 if (ls[n].deferred_accept && !nls[n].deferred_accept) {
|
|
526 nls[n].delete_deferred = 1;
|
72
|
527
|
160
|
528 } else if (ls[i].deferred_accept != nls[n].deferred_accept)
|
|
529 {
|
|
530 nls[n].add_deferred = 1;
|
|
531 }
|
72
|
532 #endif
|
160
|
533 break;
|
0
|
534 }
|
|
535 }
|
|
536
|
160
|
537 if (nls[n].fd == -1) {
|
|
538 nls[n].open = 1;
|
0
|
539 }
|
|
540 }
|
|
541
|
160
|
542 } else {
|
|
543 ls = cycle->listening.elts;
|
|
544 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
545 ls[i].open = 1;
|
|
546 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
547 if (ls[i].accept_filter) {
|
|
548 ls[i].add_deferred = 1;
|
0
|
549 }
|
160
|
550 #endif
|
|
551 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
552 if (ls[i].deferred_accept) {
|
|
553 ls[i].add_deferred = 1;
|
72
|
554 }
|
160
|
555 #endif
|
0
|
556 }
|
|
557 }
|
|
558
|
160
|
559 if (ngx_open_listening_sockets(cycle) != NGX_OK) {
|
|
560 goto failed;
|
|
561 }
|
0
|
562
|
160
|
563 if (!ngx_test_config) {
|
|
564 ngx_configure_listening_socket(cycle);
|
0
|
565 }
|
|
566
|
|
567
|
|
568 /* commit the new cycle configuration */
|
|
569
|
10
|
570 #if !(NGX_WIN32)
|
0
|
571
|
|
572 if (!ngx_test_config && cycle->log->file->fd != STDERR_FILENO) {
|
|
573
|
|
574 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
|
10
|
575 "dup2: %p %d \"%s\"",
|
0
|
576 cycle->log->file,
|
|
577 cycle->log->file->fd, cycle->log->file->name.data);
|
|
578
|
160
|
579 if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) {
|
0
|
580 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
581 "dup2(STDERR) failed");
|
|
582 /* fatal */
|
|
583 exit(1);
|
|
584 }
|
|
585 }
|
|
586
|
|
587 #endif
|
|
588
|
|
589 pool->log = cycle->log;
|
|
590
|
|
591 for (i = 0; ngx_modules[i]; i++) {
|
|
592 if (ngx_modules[i]->init_module) {
|
160
|
593 if (ngx_modules[i]->init_module(cycle) != NGX_OK) {
|
0
|
594 /* fatal */
|
|
595 exit(1);
|
|
596 }
|
|
597 }
|
|
598 }
|
|
599
|
16
|
600
|
0
|
601 /* close and delete stuff that lefts from an old cycle */
|
|
602
|
272
|
603 /* free the unnecessary shared memory */
|
|
604
|
|
605 opart = &old_cycle->shared_memory.part;
|
|
606 oshm_zone = opart->elts;
|
|
607
|
|
608 for (i = 0; /* void */ ; i++) {
|
|
609
|
|
610 if (i >= opart->nelts) {
|
|
611 if (opart->next == NULL) {
|
|
612 goto old_shm_zone_done;
|
|
613 }
|
|
614 opart = opart->next;
|
|
615 oshm_zone = opart->elts;
|
|
616 i = 0;
|
|
617 }
|
|
618
|
|
619 part = &cycle->shared_memory.part;
|
|
620 shm_zone = part->elts;
|
|
621
|
|
622 for (n = 0; /* void */ ; n++) {
|
|
623
|
|
624 if (n >= part->nelts) {
|
|
625 if (part->next == NULL) {
|
|
626 break;
|
|
627 }
|
|
628 part = part->next;
|
|
629 shm_zone = part->elts;
|
|
630 n = 0;
|
|
631 }
|
|
632
|
|
633 if (oshm_zone[i].name.len == shm_zone[n].name.len
|
|
634 && ngx_strncmp(oshm_zone[i].name.data,
|
|
635 shm_zone[n].name.data,
|
|
636 oshm_zone[i].name.len)
|
|
637 == 0)
|
|
638 {
|
|
639 goto live_shm_zone;
|
|
640 }
|
|
641 }
|
|
642
|
|
643 ngx_shm_free(&oshm_zone[i].shm);
|
|
644
|
|
645 live_shm_zone:
|
|
646
|
|
647 continue;
|
|
648 }
|
|
649
|
|
650 old_shm_zone_done:
|
|
651
|
|
652
|
|
653 /* close the unnecessary listening sockets */
|
0
|
654
|
|
655 ls = old_cycle->listening.elts;
|
|
656 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
657 if (ls[i].remain) {
|
|
658 continue;
|
|
659 }
|
|
660
|
|
661 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
662 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
92
|
663 ngx_close_socket_n " listening socket on %V failed",
|
10
|
664 &ls[i].addr_text);
|
0
|
665 }
|
|
666 }
|
|
667
|
|
668
|
272
|
669 /* close the unnecessary open files */
|
0
|
670
|
|
671 part = &old_cycle->open_files.part;
|
|
672 file = part->elts;
|
|
673
|
|
674 for (i = 0; /* void */ ; i++) {
|
|
675
|
|
676 if (i >= part->nelts) {
|
|
677 if (part->next == NULL) {
|
|
678 break;
|
|
679 }
|
|
680 part = part->next;
|
|
681 file = part->elts;
|
|
682 i = 0;
|
|
683 }
|
|
684
|
|
685 if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) {
|
|
686 continue;
|
|
687 }
|
|
688
|
|
689 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
690 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
691 ngx_close_file_n " \"%s\" failed",
|
|
692 file[i].name.data);
|
|
693 }
|
|
694 }
|
|
695
|
142
|
696 ngx_destroy_pool(conf.temp_pool);
|
|
697
|
154
|
698 if (ngx_process == NGX_PROCESS_MASTER || ngx_is_init_cycle(old_cycle)) {
|
|
699
|
0
|
700 ngx_destroy_pool(old_cycle->pool);
|
160
|
701 cycle->old_cycle = NULL;
|
|
702
|
0
|
703 return cycle;
|
|
704 }
|
|
705
|
|
706
|
|
707 if (ngx_temp_pool == NULL) {
|
|
708 ngx_temp_pool = ngx_create_pool(128, cycle->log);
|
|
709 if (ngx_temp_pool == NULL) {
|
|
710 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
711 "can not create ngx_temp_pool");
|
|
712 exit(1);
|
|
713 }
|
|
714
|
|
715 n = 10;
|
|
716 ngx_old_cycles.elts = ngx_pcalloc(ngx_temp_pool,
|
|
717 n * sizeof(ngx_cycle_t *));
|
|
718 if (ngx_old_cycles.elts == NULL) {
|
|
719 exit(1);
|
|
720 }
|
|
721 ngx_old_cycles.nelts = 0;
|
|
722 ngx_old_cycles.size = sizeof(ngx_cycle_t *);
|
|
723 ngx_old_cycles.nalloc = n;
|
|
724 ngx_old_cycles.pool = ngx_temp_pool;
|
|
725
|
58
|
726 ngx_cleaner_event.handler = ngx_clean_old_cycles;
|
0
|
727 ngx_cleaner_event.log = cycle->log;
|
|
728 ngx_cleaner_event.data = &dumb;
|
|
729 dumb.fd = (ngx_socket_t) -1;
|
|
730 }
|
|
731
|
|
732 ngx_temp_pool->log = cycle->log;
|
|
733
|
50
|
734 old = ngx_array_push(&ngx_old_cycles);
|
0
|
735 if (old == NULL) {
|
|
736 exit(1);
|
|
737 }
|
|
738 *old = old_cycle;
|
|
739
|
|
740 if (!ngx_cleaner_event.timer_set) {
|
|
741 ngx_add_timer(&ngx_cleaner_event, 30000);
|
|
742 ngx_cleaner_event.timer_set = 1;
|
|
743 }
|
|
744
|
|
745 return cycle;
|
160
|
746
|
|
747
|
|
748 failed:
|
|
749
|
|
750 /* rollback the new cycle configuration */
|
|
751
|
|
752 part = &cycle->open_files.part;
|
|
753 file = part->elts;
|
|
754
|
|
755 for (i = 0; /* void */ ; i++) {
|
|
756
|
|
757 if (i >= part->nelts) {
|
|
758 if (part->next == NULL) {
|
|
759 break;
|
|
760 }
|
|
761 part = part->next;
|
|
762 file = part->elts;
|
|
763 i = 0;
|
|
764 }
|
|
765
|
|
766 if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) {
|
|
767 continue;
|
|
768 }
|
|
769
|
|
770 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
771 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
772 ngx_close_file_n " \"%s\" failed",
|
|
773 file[i].name.data);
|
|
774 }
|
|
775 }
|
|
776
|
|
777 if (ngx_test_config) {
|
|
778 ngx_destroy_cycle_pools(&conf);
|
|
779 return NULL;
|
|
780 }
|
|
781
|
|
782 ls = cycle->listening.elts;
|
|
783 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
784 if (ls[i].fd == -1 || !ls[i].open) {
|
|
785 continue;
|
|
786 }
|
|
787
|
|
788 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
789 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
790 ngx_close_socket_n " %V failed",
|
|
791 &ls[i].addr_text);
|
|
792 }
|
|
793 }
|
|
794
|
|
795 ngx_destroy_cycle_pools(&conf);
|
|
796
|
|
797 return NULL;
|
0
|
798 }
|
|
799
|
|
800
|
154
|
801 static void
|
|
802 ngx_destroy_cycle_pools(ngx_conf_t *conf)
|
|
803 {
|
|
804 ngx_destroy_pool(conf->temp_pool);
|
|
805 ngx_destroy_pool(conf->pool);
|
|
806 }
|
|
807
|
|
808
|
112
|
809 static ngx_int_t
|
|
810 ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2)
|
10
|
811 {
|
|
812 struct sockaddr_in *sin1, *sin2;
|
|
813
|
|
814 /* AF_INET only */
|
|
815
|
28
|
816 if (sa1->sa_family != AF_INET || sa2->sa_family != AF_INET) {
|
10
|
817 return NGX_DECLINED;
|
|
818 }
|
|
819
|
28
|
820 sin1 = (struct sockaddr_in *) sa1;
|
|
821 sin2 = (struct sockaddr_in *) sa2;
|
10
|
822
|
|
823 if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {
|
|
824 return NGX_DECLINED;
|
|
825 }
|
|
826
|
|
827 if (sin1->sin_port != sin2->sin_port) {
|
|
828 return NGX_DECLINED;
|
|
829 }
|
|
830
|
|
831 return NGX_OK;
|
|
832 }
|
|
833
|
|
834
|
|
835 #if !(NGX_WIN32)
|
0
|
836
|
112
|
837 ngx_int_t
|
160
|
838 ngx_create_pidfile(ngx_str_t *name, ngx_log_t *log)
|
0
|
839 {
|
160
|
840 size_t len;
|
0
|
841 ngx_uint_t trunc;
|
|
842 ngx_file_t file;
|
270
|
843 u_char pid[NGX_INT64_LEN + 2];
|
0
|
844
|
|
845 ngx_memzero(&file, sizeof(ngx_file_t));
|
92
|
846
|
160
|
847 file.name = *name;
|
|
848 file.log = log;
|
0
|
849
|
160
|
850 trunc = ngx_test_config ? 0 : NGX_FILE_TRUNCATE;
|
0
|
851
|
|
852 file.fd = ngx_open_file(file.name.data, NGX_FILE_RDWR,
|
276
|
853 NGX_FILE_CREATE_OR_OPEN|trunc,
|
|
854 NGX_FILE_DEFAULT_ACCESS);
|
0
|
855
|
|
856 if (file.fd == NGX_INVALID_FILE) {
|
160
|
857 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
0
|
858 ngx_open_file_n " \"%s\" failed", file.name.data);
|
|
859 return NGX_ERROR;
|
|
860 }
|
|
861
|
|
862 if (!ngx_test_config) {
|
270
|
863 len = ngx_snprintf(pid, NGX_INT64_LEN + 2, "%P%N", ngx_pid) - pid;
|
10
|
864
|
0
|
865 if (ngx_write_file(&file, pid, len, 0) == NGX_ERROR) {
|
|
866 return NGX_ERROR;
|
|
867 }
|
|
868 }
|
|
869
|
|
870 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
160
|
871 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
0
|
872 ngx_close_file_n " \"%s\" failed", file.name.data);
|
|
873 }
|
|
874
|
|
875 return NGX_OK;
|
|
876 }
|
|
877
|
|
878
|
112
|
879 void
|
|
880 ngx_delete_pidfile(ngx_cycle_t *cycle)
|
126
|
881 {
|
0
|
882 u_char *name;
|
|
883 ngx_core_conf_t *ccf;
|
|
884
|
|
885 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
886
|
92
|
887 name = ngx_new_binary ? ccf->oldpid.data : ccf->pid.data;
|
0
|
888
|
|
889 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
890 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
891 ngx_delete_file_n " \"%s\" failed", name);
|
|
892 }
|
|
893 }
|
|
894
|
|
895 #endif
|
|
896
|
|
897
|
160
|
898 static ngx_int_t
|
|
899 ngx_test_lockfile(u_char *file, ngx_log_t *log)
|
|
900 {
|
|
901 #if !(NGX_HAVE_ATOMIC_OPS)
|
|
902 ngx_fd_t fd;
|
|
903
|
|
904 fd = ngx_open_file(file, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN);
|
|
905
|
|
906 if (fd == NGX_INVALID_FILE) {
|
|
907 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
908 ngx_open_file_n " \"%s\" failed", file);
|
|
909 return NGX_ERROR;
|
|
910 }
|
|
911
|
|
912 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
913 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
914 ngx_close_file_n " \"%s\" failed", file);
|
|
915 }
|
|
916
|
|
917 if (ngx_delete_file(file) == NGX_FILE_ERROR) {
|
|
918 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
919 ngx_delete_file_n " \"%s\" failed", file);
|
|
920 }
|
|
921
|
|
922 #endif
|
|
923
|
|
924 return NGX_OK;
|
|
925 }
|
|
926
|
|
927
|
112
|
928 void
|
|
929 ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user)
|
0
|
930 {
|
|
931 ngx_fd_t fd;
|
|
932 ngx_uint_t i;
|
|
933 ngx_list_part_t *part;
|
|
934 ngx_open_file_t *file;
|
10
|
935 #if !(NGX_WIN32)
|
2
|
936 ngx_file_info_t fi;
|
|
937 #endif
|
0
|
938
|
|
939 part = &cycle->open_files.part;
|
|
940 file = part->elts;
|
|
941
|
|
942 for (i = 0; /* void */ ; i++) {
|
|
943
|
|
944 if (i >= part->nelts) {
|
|
945 if (part->next == NULL) {
|
|
946 break;
|
|
947 }
|
|
948 part = part->next;
|
72
|
949 file = part->elts;
|
0
|
950 i = 0;
|
|
951 }
|
|
952
|
|
953 if (file[i].name.data == NULL) {
|
|
954 continue;
|
|
955 }
|
|
956
|
120
|
957 if (file[i].buffer && file[i].pos - file[i].buffer != 0) {
|
|
958 ngx_write_fd(file[i].fd, file[i].buffer,
|
|
959 file[i].pos - file[i].buffer);
|
|
960 file[i].pos = file[i].buffer;
|
|
961 }
|
|
962
|
0
|
963 fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR,
|
276
|
964 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND,
|
|
965 NGX_FILE_DEFAULT_ACCESS);
|
0
|
966
|
|
967 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
968 "reopen file \"%s\", old:%d new:%d",
|
|
969 file[i].name.data, file[i].fd, fd);
|
|
970
|
|
971 if (fd == NGX_INVALID_FILE) {
|
|
972 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
973 ngx_open_file_n " \"%s\" failed", file[i].name.data);
|
|
974 continue;
|
|
975 }
|
|
976
|
10
|
977 #if (NGX_WIN32)
|
0
|
978 if (ngx_file_append_mode(fd) == NGX_ERROR) {
|
|
979 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
980 ngx_file_append_mode_n " \"%s\" failed",
|
|
981 file[i].name.data);
|
|
982
|
|
983 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
984 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
985 ngx_close_file_n " \"%s\" failed",
|
|
986 file[i].name.data);
|
|
987 }
|
|
988
|
|
989 continue;
|
|
990 }
|
|
991 #else
|
66
|
992 if (user != (ngx_uid_t) NGX_CONF_UNSET_UINT) {
|
2
|
993
|
|
994 if (ngx_file_info((const char *) file[i].name.data, &fi) == -1) {
|
|
995 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
996 ngx_file_info_n " \"%s\" failed",
|
|
997 file[i].name.data);
|
|
998
|
|
999 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1000 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1001 ngx_close_file_n " \"%s\" failed",
|
|
1002 file[i].name.data);
|
|
1003 }
|
|
1004 }
|
|
1005
|
16
|
1006 if (fi.st_uid != user) {
|
|
1007 if (chown((const char *) file[i].name.data, user, -1) == -1) {
|
|
1008 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1009 "chown(\"%s\", %d) failed",
|
|
1010 file[i].name.data, user);
|
|
1011
|
|
1012 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1013 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1014 ngx_close_file_n " \"%s\" failed",
|
|
1015 file[i].name.data);
|
|
1016 }
|
|
1017 }
|
|
1018 }
|
|
1019
|
2
|
1020 if ((fi.st_mode & (S_IRUSR|S_IWUSR)) != (S_IRUSR|S_IWUSR)) {
|
|
1021
|
|
1022 fi.st_mode |= (S_IRUSR|S_IWUSR);
|
|
1023
|
|
1024 if (chmod((const char *) file[i].name.data, fi.st_mode) == -1) {
|
|
1025 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
16
|
1026 "chmod() \"%s\" failed", file[i].name.data);
|
2
|
1027
|
|
1028 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1029 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1030 ngx_close_file_n " \"%s\" failed",
|
|
1031 file[i].name.data);
|
|
1032 }
|
|
1033 }
|
|
1034 }
|
0
|
1035 }
|
|
1036
|
|
1037 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
|
1038 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1039 "fcntl(FD_CLOEXEC) \"%s\" failed",
|
|
1040 file[i].name.data);
|
|
1041
|
|
1042 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1043 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1044 ngx_close_file_n " \"%s\" failed",
|
|
1045 file[i].name.data);
|
|
1046 }
|
|
1047
|
|
1048 continue;
|
|
1049 }
|
|
1050 #endif
|
|
1051
|
|
1052 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
1053 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1054 ngx_close_file_n " \"%s\" failed",
|
|
1055 file[i].name.data);
|
|
1056 }
|
|
1057
|
|
1058 file[i].fd = fd;
|
|
1059 }
|
|
1060
|
10
|
1061 #if !(NGX_WIN32)
|
0
|
1062
|
|
1063 if (cycle->log->file->fd != STDERR_FILENO) {
|
|
1064 if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) {
|
|
1065 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1066 "dup2(STDERR) failed");
|
|
1067 }
|
|
1068 }
|
|
1069
|
|
1070 #endif
|
|
1071 }
|
|
1072
|
|
1073
|
272
|
1074 ngx_shm_zone_t *
|
|
1075 ngx_shared_memory_add(ngx_conf_t *cf, ngx_str_t *name, size_t size, void *tag)
|
|
1076 {
|
|
1077 ngx_uint_t i;
|
|
1078 ngx_shm_zone_t *shm_zone;
|
|
1079 ngx_list_part_t *part;
|
|
1080
|
|
1081 part = &cf->cycle->shared_memory.part;
|
|
1082 shm_zone = part->elts;
|
|
1083
|
|
1084 for (i = 0; /* void */ ; i++) {
|
|
1085
|
|
1086 if (i >= part->nelts) {
|
|
1087 if (part->next == NULL) {
|
|
1088 break;
|
|
1089 }
|
|
1090 part = part->next;
|
|
1091 shm_zone = part->elts;
|
|
1092 i = 0;
|
|
1093 }
|
|
1094
|
|
1095 if (name->len != shm_zone[i].name.len) {
|
|
1096 continue;
|
|
1097 }
|
|
1098
|
|
1099 if (ngx_strncmp(name->data, shm_zone[i].name.data, name->len) != 0) {
|
|
1100 continue;
|
|
1101 }
|
|
1102
|
|
1103 if (size && size != shm_zone[i].shm.size) {
|
|
1104 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1105 "the size %uz of shared memory zone \"%V\" "
|
|
1106 "conflicts with already declared size %uz",
|
|
1107 size, &shm_zone[i].name, shm_zone[i].shm.size);
|
|
1108 return NULL;
|
|
1109 }
|
|
1110
|
|
1111 if (tag != shm_zone[i].tag) {
|
|
1112 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1113 "the shared memory zone \"%V\" is "
|
|
1114 "already declared for a different use",
|
|
1115 &shm_zone[i].name);
|
|
1116 return NULL;
|
|
1117 }
|
|
1118
|
|
1119 return &shm_zone[i];
|
|
1120 }
|
|
1121
|
|
1122 shm_zone = ngx_list_push(&cf->cycle->shared_memory);
|
|
1123
|
|
1124 if (shm_zone == NULL) {
|
|
1125 return NULL;
|
|
1126 }
|
|
1127
|
|
1128 shm_zone->data = NULL;
|
|
1129 shm_zone->shm.log = cf->cycle->log;
|
|
1130 shm_zone->shm.size = size;
|
|
1131 shm_zone->init = NULL;
|
|
1132 shm_zone->name = *name;
|
|
1133 shm_zone->tag = tag;
|
|
1134
|
|
1135 return shm_zone;
|
|
1136 }
|
|
1137
|
|
1138
|
112
|
1139 static void
|
|
1140 ngx_clean_old_cycles(ngx_event_t *ev)
|
0
|
1141 {
|
|
1142 ngx_uint_t i, n, found, live;
|
|
1143 ngx_log_t *log;
|
|
1144 ngx_cycle_t **cycle;
|
|
1145
|
|
1146 log = ngx_cycle->log;
|
|
1147 ngx_temp_pool->log = log;
|
|
1148
|
|
1149 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycles");
|
|
1150
|
|
1151 live = 0;
|
|
1152
|
|
1153 cycle = ngx_old_cycles.elts;
|
|
1154 for (i = 0; i < ngx_old_cycles.nelts; i++) {
|
|
1155
|
|
1156 if (cycle[i] == NULL) {
|
|
1157 continue;
|
|
1158 }
|
|
1159
|
|
1160 found = 0;
|
|
1161
|
|
1162 for (n = 0; n < cycle[i]->connection_n; n++) {
|
110
|
1163 if (cycle[i]->connections[n].fd != (ngx_socket_t) -1) {
|
0
|
1164 found = 1;
|
|
1165
|
|
1166 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "live fd:%d", n);
|
|
1167
|
|
1168 break;
|
|
1169 }
|
|
1170 }
|
|
1171
|
|
1172 if (found) {
|
|
1173 live = 1;
|
|
1174 continue;
|
|
1175 }
|
|
1176
|
|
1177 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycle: %d", i);
|
|
1178
|
|
1179 ngx_destroy_pool(cycle[i]->pool);
|
|
1180 cycle[i] = NULL;
|
|
1181 }
|
|
1182
|
|
1183 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "old cycles status: %d", live);
|
|
1184
|
|
1185 if (live) {
|
|
1186 ngx_add_timer(ev, 30000);
|
|
1187
|
|
1188 } else {
|
|
1189 ngx_destroy_pool(ngx_temp_pool);
|
|
1190 ngx_temp_pool = NULL;
|
|
1191 ngx_old_cycles.nelts = 0;
|
|
1192 }
|
|
1193 }
|