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
|
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)
|
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 }
|
0
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279 }
|
160
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280
|
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 }
|
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;
|
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 */
|
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;
|
0
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298
|
160
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299 for (i = 0; /* void */ ; i++) {
|
0
|
300
|
160
|
301 if (i >= part->nelts) {
|
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302 if (part->next == NULL) {
|
0
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303 break;
|
|
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;
|
|
312 }
|
|
313
|
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314 file[i].fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR,
|
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315 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
|
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316
|
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317 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
|
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318 "log: %p %d \"%s\"",
|
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319 &file[i], file[i].fd, file[i].name.data);
|
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320
|
|
321 if (file[i].fd == NGX_INVALID_FILE) {
|
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322 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
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323 ngx_open_file_n " \"%s\" failed",
|
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324 file[i].name.data);
|
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325 goto failed;
|
|
326 }
|
0
|
327
|
10
|
328 #if (NGX_WIN32)
|
160
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329 if (ngx_file_append_mode(file[i].fd) != NGX_OK) {
|
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330 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
331 ngx_file_append_mode_n " \"%s\" failed",
|
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332 file[i].name.data);
|
|
333 goto failed;
|
|
334 }
|
0
|
335 #else
|
160
|
336 if (fcntl(file[i].fd, F_SETFD, FD_CLOEXEC) == -1) {
|
|
337 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
338 "fcntl(FD_CLOEXEC) \"%s\" failed",
|
|
339 file[i].name.data);
|
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340 goto failed;
|
|
341 }
|
0
|
342 #endif
|
|
343 }
|
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344
|
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345 cycle->log = cycle->new_log;
|
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346 pool->log = cycle->new_log;
|
|
347
|
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348 if (cycle->log->log_level == 0) {
|
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349 cycle->log->log_level = NGX_LOG_ERR;
|
|
350 }
|
|
351
|
10
|
352
|
258
|
353 /* create shared memory */
|
|
354
|
|
355 part = &cycle->shared_memory.part;
|
272
|
356 shm_zone = part->elts;
|
258
|
357
|
|
358 for (i = 0; /* void */ ; i++) {
|
|
359
|
|
360 if (i >= part->nelts) {
|
|
361 if (part->next == NULL) {
|
|
362 break;
|
|
363 }
|
|
364 part = part->next;
|
272
|
365 shm_zone = part->elts;
|
258
|
366 i = 0;
|
|
367 }
|
|
368
|
272
|
369 if (shm_zone[i].shm.size == 0) {
|
|
370 ngx_log_error(NGX_LOG_EMERG, log, 0,
|
|
371 "zero size shared memory zone \"%V\"",
|
|
372 &shm_zone[i].name);
|
|
373 goto failed;
|
|
374 }
|
|
375
|
|
376 shm_zone[i].shm.log = cycle->log;
|
258
|
377
|
|
378 opart = &old_cycle->shared_memory.part;
|
272
|
379 oshm_zone = opart->elts;
|
258
|
380
|
|
381 for (n = 0; /* void */ ; n++) {
|
|
382
|
|
383 if (n >= opart->nelts) {
|
|
384 if (opart->next == NULL) {
|
|
385 break;
|
|
386 }
|
|
387 opart = opart->next;
|
272
|
388 oshm_zone = opart->elts;
|
258
|
389 n = 0;
|
|
390 }
|
|
391
|
272
|
392 if (shm_zone[i].name.len != oshm_zone[n].name.len) {
|
|
393 continue;
|
|
394 }
|
|
395
|
|
396 if (ngx_strncmp(shm_zone[i].name.data, oshm_zone[n].name.data,
|
|
397 shm_zone[i].name.len)
|
|
398 != 0)
|
|
399 {
|
258
|
400 continue;
|
|
401 }
|
|
402
|
272
|
403 if (shm_zone[i].shm.size == oshm_zone[n].shm.size) {
|
|
404 shm_zone[i].shm.addr = oshm_zone[n].shm.addr;
|
|
405
|
|
406 if (shm_zone[i].init(&shm_zone[i], oshm_zone[n].data)
|
|
407 != NGX_OK)
|
|
408 {
|
|
409 goto failed;
|
|
410 }
|
|
411
|
|
412 goto shm_zone_found;
|
258
|
413 }
|
|
414
|
272
|
415 ngx_shm_free(&oshm_zone[n].shm);
|
258
|
416
|
|
417 break;
|
|
418 }
|
|
419
|
272
|
420 if (ngx_shm_alloc(&shm_zone[i].shm) != NGX_OK) {
|
258
|
421 goto failed;
|
|
422 }
|
|
423
|
272
|
424 shpool = (ngx_slab_pool_t *) shm_zone[i].shm.addr;
|
258
|
425
|
272
|
426 shpool->end = shm_zone[i].shm.addr + shm_zone[i].shm.size;
|
258
|
427 shpool->min_shift = 3;
|
|
428
|
|
429 #if (NGX_HAVE_ATOMIC_OPS)
|
|
430
|
|
431 lock_file = NULL;
|
|
432
|
|
433 #else
|
|
434
|
|
435 lock_file = ngx_palloc(cycle->pool,
|
272
|
436 cycle->lock_file.len + shm_zone[i].name.len);
|
258
|
437
|
|
438 if (lock_file == NULL) {
|
|
439 goto failed;
|
|
440 }
|
|
441
|
|
442 (void) ngx_cpystrn(ngx_cpymem(lock_file, cycle->lock_file.data,
|
|
443 cycle->lock_file.len),
|
272
|
444 shm_zone[i].name.data, shm_zone[i].name.len + 1);
|
258
|
445
|
|
446 #endif
|
|
447
|
|
448 if (ngx_shmtx_create(&shpool->mutex, (void *) &shpool->lock, lock_file)
|
|
449 != NGX_OK)
|
|
450 {
|
|
451 goto failed;
|
|
452 }
|
|
453
|
|
454 ngx_slab_init(shpool);
|
|
455
|
272
|
456 if (shm_zone[i].init(&shm_zone[i], NULL) != NGX_OK) {
|
|
457 goto failed;
|
|
458 }
|
|
459
|
|
460 shm_zone_found:
|
258
|
461
|
|
462 continue;
|
|
463 }
|
|
464
|
|
465
|
160
|
466 /* handle the listening sockets */
|
10
|
467
|
160
|
468 if (old_cycle->listening.nelts) {
|
|
469 ls = old_cycle->listening.elts;
|
|
470 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
471 ls[i].remain = 0;
|
|
472 }
|
0
|
473
|
160
|
474 nls = cycle->listening.elts;
|
|
475 for (n = 0; n < cycle->listening.nelts; n++) {
|
10
|
476
|
160
|
477 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
478 if (ls[i].ignore) {
|
|
479 continue;
|
|
480 }
|
0
|
481
|
160
|
482 if (ngx_cmp_sockaddr(nls[n].sockaddr, ls[i].sockaddr) == NGX_OK)
|
|
483 {
|
|
484 nls[n].fd = ls[i].fd;
|
|
485 nls[n].previous = &ls[i];
|
|
486 ls[i].remain = 1;
|
72
|
487
|
160
|
488 if (ls[n].backlog != nls[i].backlog) {
|
|
489 nls[n].listen = 1;
|
|
490 }
|
86
|
491
|
72
|
492 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
493
|
160
|
494 /*
|
|
495 * FreeBSD, except the most recent versions,
|
|
496 * could not remove accept filter
|
|
497 */
|
|
498 nls[n].deferred_accept = ls[i].deferred_accept;
|
72
|
499
|
160
|
500 if (ls[i].accept_filter && nls[n].accept_filter) {
|
|
501 if (ngx_strcmp(ls[i].accept_filter,
|
|
502 nls[n].accept_filter)
|
|
503 != 0)
|
|
504 {
|
72
|
505 nls[n].delete_deferred = 1;
|
|
506 nls[n].add_deferred = 1;
|
|
507 }
|
160
|
508
|
|
509 } else if (ls[i].accept_filter) {
|
|
510 nls[n].delete_deferred = 1;
|
|
511
|
|
512 } else if (nls[n].accept_filter) {
|
|
513 nls[n].add_deferred = 1;
|
|
514 }
|
72
|
515 #endif
|
|
516
|
|
517 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
518
|
160
|
519 if (ls[n].deferred_accept && !nls[n].deferred_accept) {
|
|
520 nls[n].delete_deferred = 1;
|
72
|
521
|
160
|
522 } else if (ls[i].deferred_accept != nls[n].deferred_accept)
|
|
523 {
|
|
524 nls[n].add_deferred = 1;
|
|
525 }
|
72
|
526 #endif
|
160
|
527 break;
|
0
|
528 }
|
|
529 }
|
|
530
|
160
|
531 if (nls[n].fd == -1) {
|
|
532 nls[n].open = 1;
|
0
|
533 }
|
|
534 }
|
|
535
|
160
|
536 } else {
|
|
537 ls = cycle->listening.elts;
|
|
538 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
539 ls[i].open = 1;
|
|
540 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
|
|
541 if (ls[i].accept_filter) {
|
|
542 ls[i].add_deferred = 1;
|
0
|
543 }
|
160
|
544 #endif
|
|
545 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
|
|
546 if (ls[i].deferred_accept) {
|
|
547 ls[i].add_deferred = 1;
|
72
|
548 }
|
160
|
549 #endif
|
0
|
550 }
|
|
551 }
|
|
552
|
160
|
553 if (ngx_open_listening_sockets(cycle) != NGX_OK) {
|
|
554 goto failed;
|
|
555 }
|
0
|
556
|
160
|
557 if (!ngx_test_config) {
|
|
558 ngx_configure_listening_socket(cycle);
|
0
|
559 }
|
|
560
|
|
561
|
|
562 /* commit the new cycle configuration */
|
|
563
|
10
|
564 #if !(NGX_WIN32)
|
0
|
565
|
|
566 if (!ngx_test_config && cycle->log->file->fd != STDERR_FILENO) {
|
|
567
|
|
568 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
|
10
|
569 "dup2: %p %d \"%s\"",
|
0
|
570 cycle->log->file,
|
|
571 cycle->log->file->fd, cycle->log->file->name.data);
|
|
572
|
160
|
573 if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) {
|
0
|
574 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
575 "dup2(STDERR) failed");
|
|
576 /* fatal */
|
|
577 exit(1);
|
|
578 }
|
|
579 }
|
|
580
|
|
581 #endif
|
|
582
|
|
583 pool->log = cycle->log;
|
|
584
|
|
585 for (i = 0; ngx_modules[i]; i++) {
|
|
586 if (ngx_modules[i]->init_module) {
|
160
|
587 if (ngx_modules[i]->init_module(cycle) != NGX_OK) {
|
0
|
588 /* fatal */
|
|
589 exit(1);
|
|
590 }
|
|
591 }
|
|
592 }
|
|
593
|
16
|
594
|
0
|
595 /* close and delete stuff that lefts from an old cycle */
|
|
596
|
272
|
597 /* free the unnecessary shared memory */
|
|
598
|
|
599 opart = &old_cycle->shared_memory.part;
|
|
600 oshm_zone = opart->elts;
|
|
601
|
|
602 for (i = 0; /* void */ ; i++) {
|
|
603
|
|
604 if (i >= opart->nelts) {
|
|
605 if (opart->next == NULL) {
|
|
606 goto old_shm_zone_done;
|
|
607 }
|
|
608 opart = opart->next;
|
|
609 oshm_zone = opart->elts;
|
|
610 i = 0;
|
|
611 }
|
|
612
|
|
613 part = &cycle->shared_memory.part;
|
|
614 shm_zone = part->elts;
|
|
615
|
|
616 for (n = 0; /* void */ ; n++) {
|
|
617
|
|
618 if (n >= part->nelts) {
|
|
619 if (part->next == NULL) {
|
|
620 break;
|
|
621 }
|
|
622 part = part->next;
|
|
623 shm_zone = part->elts;
|
|
624 n = 0;
|
|
625 }
|
|
626
|
|
627 if (oshm_zone[i].name.len == shm_zone[n].name.len
|
|
628 && ngx_strncmp(oshm_zone[i].name.data,
|
|
629 shm_zone[n].name.data,
|
|
630 oshm_zone[i].name.len)
|
|
631 == 0)
|
|
632 {
|
|
633 goto live_shm_zone;
|
|
634 }
|
|
635 }
|
|
636
|
|
637 ngx_shm_free(&oshm_zone[i].shm);
|
|
638
|
|
639 live_shm_zone:
|
|
640
|
|
641 continue;
|
|
642 }
|
|
643
|
|
644 old_shm_zone_done:
|
|
645
|
|
646
|
|
647 /* close the unnecessary listening sockets */
|
0
|
648
|
|
649 ls = old_cycle->listening.elts;
|
|
650 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
651 if (ls[i].remain) {
|
|
652 continue;
|
|
653 }
|
|
654
|
|
655 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
656 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
92
|
657 ngx_close_socket_n " listening socket on %V failed",
|
10
|
658 &ls[i].addr_text);
|
0
|
659 }
|
|
660 }
|
|
661
|
|
662
|
272
|
663 /* close the unnecessary open files */
|
0
|
664
|
|
665 part = &old_cycle->open_files.part;
|
|
666 file = part->elts;
|
|
667
|
|
668 for (i = 0; /* void */ ; i++) {
|
|
669
|
|
670 if (i >= part->nelts) {
|
|
671 if (part->next == NULL) {
|
|
672 break;
|
|
673 }
|
|
674 part = part->next;
|
|
675 file = part->elts;
|
|
676 i = 0;
|
|
677 }
|
|
678
|
|
679 if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) {
|
|
680 continue;
|
|
681 }
|
|
682
|
|
683 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
684 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
685 ngx_close_file_n " \"%s\" failed",
|
|
686 file[i].name.data);
|
|
687 }
|
|
688 }
|
|
689
|
142
|
690 ngx_destroy_pool(conf.temp_pool);
|
|
691
|
154
|
692 if (ngx_process == NGX_PROCESS_MASTER || ngx_is_init_cycle(old_cycle)) {
|
|
693
|
0
|
694 ngx_destroy_pool(old_cycle->pool);
|
160
|
695 cycle->old_cycle = NULL;
|
|
696
|
0
|
697 return cycle;
|
|
698 }
|
|
699
|
|
700
|
|
701 if (ngx_temp_pool == NULL) {
|
|
702 ngx_temp_pool = ngx_create_pool(128, cycle->log);
|
|
703 if (ngx_temp_pool == NULL) {
|
|
704 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
705 "can not create ngx_temp_pool");
|
|
706 exit(1);
|
|
707 }
|
|
708
|
|
709 n = 10;
|
|
710 ngx_old_cycles.elts = ngx_pcalloc(ngx_temp_pool,
|
|
711 n * sizeof(ngx_cycle_t *));
|
|
712 if (ngx_old_cycles.elts == NULL) {
|
|
713 exit(1);
|
|
714 }
|
|
715 ngx_old_cycles.nelts = 0;
|
|
716 ngx_old_cycles.size = sizeof(ngx_cycle_t *);
|
|
717 ngx_old_cycles.nalloc = n;
|
|
718 ngx_old_cycles.pool = ngx_temp_pool;
|
|
719
|
58
|
720 ngx_cleaner_event.handler = ngx_clean_old_cycles;
|
0
|
721 ngx_cleaner_event.log = cycle->log;
|
|
722 ngx_cleaner_event.data = &dumb;
|
|
723 dumb.fd = (ngx_socket_t) -1;
|
|
724 }
|
|
725
|
|
726 ngx_temp_pool->log = cycle->log;
|
|
727
|
50
|
728 old = ngx_array_push(&ngx_old_cycles);
|
0
|
729 if (old == NULL) {
|
|
730 exit(1);
|
|
731 }
|
|
732 *old = old_cycle;
|
|
733
|
|
734 if (!ngx_cleaner_event.timer_set) {
|
|
735 ngx_add_timer(&ngx_cleaner_event, 30000);
|
|
736 ngx_cleaner_event.timer_set = 1;
|
|
737 }
|
|
738
|
|
739 return cycle;
|
160
|
740
|
|
741
|
|
742 failed:
|
|
743
|
|
744 /* rollback the new cycle configuration */
|
|
745
|
|
746 part = &cycle->open_files.part;
|
|
747 file = part->elts;
|
|
748
|
|
749 for (i = 0; /* void */ ; i++) {
|
|
750
|
|
751 if (i >= part->nelts) {
|
|
752 if (part->next == NULL) {
|
|
753 break;
|
|
754 }
|
|
755 part = part->next;
|
|
756 file = part->elts;
|
|
757 i = 0;
|
|
758 }
|
|
759
|
|
760 if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) {
|
|
761 continue;
|
|
762 }
|
|
763
|
|
764 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
765 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
766 ngx_close_file_n " \"%s\" failed",
|
|
767 file[i].name.data);
|
|
768 }
|
|
769 }
|
|
770
|
|
771 if (ngx_test_config) {
|
|
772 ngx_destroy_cycle_pools(&conf);
|
|
773 return NULL;
|
|
774 }
|
|
775
|
|
776 ls = cycle->listening.elts;
|
|
777 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
778 if (ls[i].fd == -1 || !ls[i].open) {
|
|
779 continue;
|
|
780 }
|
|
781
|
|
782 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
783 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
784 ngx_close_socket_n " %V failed",
|
|
785 &ls[i].addr_text);
|
|
786 }
|
|
787 }
|
|
788
|
|
789 ngx_destroy_cycle_pools(&conf);
|
|
790
|
|
791 return NULL;
|
0
|
792 }
|
|
793
|
|
794
|
154
|
795 static void
|
|
796 ngx_destroy_cycle_pools(ngx_conf_t *conf)
|
|
797 {
|
|
798 ngx_destroy_pool(conf->temp_pool);
|
|
799 ngx_destroy_pool(conf->pool);
|
|
800 }
|
|
801
|
|
802
|
112
|
803 static ngx_int_t
|
|
804 ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2)
|
10
|
805 {
|
|
806 struct sockaddr_in *sin1, *sin2;
|
|
807
|
|
808 /* AF_INET only */
|
|
809
|
28
|
810 if (sa1->sa_family != AF_INET || sa2->sa_family != AF_INET) {
|
10
|
811 return NGX_DECLINED;
|
|
812 }
|
|
813
|
28
|
814 sin1 = (struct sockaddr_in *) sa1;
|
|
815 sin2 = (struct sockaddr_in *) sa2;
|
10
|
816
|
|
817 if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {
|
|
818 return NGX_DECLINED;
|
|
819 }
|
|
820
|
|
821 if (sin1->sin_port != sin2->sin_port) {
|
|
822 return NGX_DECLINED;
|
|
823 }
|
|
824
|
|
825 return NGX_OK;
|
|
826 }
|
|
827
|
|
828
|
|
829 #if !(NGX_WIN32)
|
0
|
830
|
112
|
831 ngx_int_t
|
160
|
832 ngx_create_pidfile(ngx_str_t *name, ngx_log_t *log)
|
0
|
833 {
|
160
|
834 size_t len;
|
0
|
835 ngx_uint_t trunc;
|
|
836 ngx_file_t file;
|
270
|
837 u_char pid[NGX_INT64_LEN + 2];
|
0
|
838
|
|
839 ngx_memzero(&file, sizeof(ngx_file_t));
|
92
|
840
|
160
|
841 file.name = *name;
|
|
842 file.log = log;
|
0
|
843
|
160
|
844 trunc = ngx_test_config ? 0 : NGX_FILE_TRUNCATE;
|
0
|
845
|
|
846 file.fd = ngx_open_file(file.name.data, NGX_FILE_RDWR,
|
|
847 NGX_FILE_CREATE_OR_OPEN|trunc);
|
|
848
|
|
849 if (file.fd == NGX_INVALID_FILE) {
|
160
|
850 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
0
|
851 ngx_open_file_n " \"%s\" failed", file.name.data);
|
|
852 return NGX_ERROR;
|
|
853 }
|
|
854
|
|
855 if (!ngx_test_config) {
|
270
|
856 len = ngx_snprintf(pid, NGX_INT64_LEN + 2, "%P%N", ngx_pid) - pid;
|
10
|
857
|
0
|
858 if (ngx_write_file(&file, pid, len, 0) == NGX_ERROR) {
|
|
859 return NGX_ERROR;
|
|
860 }
|
|
861 }
|
|
862
|
|
863 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
160
|
864 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
0
|
865 ngx_close_file_n " \"%s\" failed", file.name.data);
|
|
866 }
|
|
867
|
|
868 return NGX_OK;
|
|
869 }
|
|
870
|
|
871
|
112
|
872 void
|
|
873 ngx_delete_pidfile(ngx_cycle_t *cycle)
|
126
|
874 {
|
0
|
875 u_char *name;
|
|
876 ngx_core_conf_t *ccf;
|
|
877
|
|
878 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
879
|
92
|
880 name = ngx_new_binary ? ccf->oldpid.data : ccf->pid.data;
|
0
|
881
|
|
882 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
883 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
884 ngx_delete_file_n " \"%s\" failed", name);
|
|
885 }
|
|
886 }
|
|
887
|
|
888 #endif
|
|
889
|
|
890
|
160
|
891 static ngx_int_t
|
|
892 ngx_test_lockfile(u_char *file, ngx_log_t *log)
|
|
893 {
|
|
894 #if !(NGX_HAVE_ATOMIC_OPS)
|
|
895 ngx_fd_t fd;
|
|
896
|
|
897 fd = ngx_open_file(file, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN);
|
|
898
|
|
899 if (fd == NGX_INVALID_FILE) {
|
|
900 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
901 ngx_open_file_n " \"%s\" failed", file);
|
|
902 return NGX_ERROR;
|
|
903 }
|
|
904
|
|
905 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
906 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
907 ngx_close_file_n " \"%s\" failed", file);
|
|
908 }
|
|
909
|
|
910 if (ngx_delete_file(file) == NGX_FILE_ERROR) {
|
|
911 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
912 ngx_delete_file_n " \"%s\" failed", file);
|
|
913 }
|
|
914
|
|
915 #endif
|
|
916
|
|
917 return NGX_OK;
|
|
918 }
|
|
919
|
|
920
|
112
|
921 void
|
|
922 ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user)
|
0
|
923 {
|
|
924 ngx_fd_t fd;
|
|
925 ngx_uint_t i;
|
|
926 ngx_list_part_t *part;
|
|
927 ngx_open_file_t *file;
|
10
|
928 #if !(NGX_WIN32)
|
2
|
929 ngx_file_info_t fi;
|
|
930 #endif
|
0
|
931
|
|
932 part = &cycle->open_files.part;
|
|
933 file = part->elts;
|
|
934
|
|
935 for (i = 0; /* void */ ; i++) {
|
|
936
|
|
937 if (i >= part->nelts) {
|
|
938 if (part->next == NULL) {
|
|
939 break;
|
|
940 }
|
|
941 part = part->next;
|
72
|
942 file = part->elts;
|
0
|
943 i = 0;
|
|
944 }
|
|
945
|
|
946 if (file[i].name.data == NULL) {
|
|
947 continue;
|
|
948 }
|
|
949
|
120
|
950 if (file[i].buffer && file[i].pos - file[i].buffer != 0) {
|
|
951 ngx_write_fd(file[i].fd, file[i].buffer,
|
|
952 file[i].pos - file[i].buffer);
|
|
953 file[i].pos = file[i].buffer;
|
|
954 }
|
|
955
|
0
|
956 fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR,
|
|
957 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
|
|
958
|
|
959 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
960 "reopen file \"%s\", old:%d new:%d",
|
|
961 file[i].name.data, file[i].fd, fd);
|
|
962
|
|
963 if (fd == NGX_INVALID_FILE) {
|
|
964 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
965 ngx_open_file_n " \"%s\" failed", file[i].name.data);
|
|
966 continue;
|
|
967 }
|
|
968
|
10
|
969 #if (NGX_WIN32)
|
0
|
970 if (ngx_file_append_mode(fd) == NGX_ERROR) {
|
|
971 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
972 ngx_file_append_mode_n " \"%s\" failed",
|
|
973 file[i].name.data);
|
|
974
|
|
975 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
976 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
977 ngx_close_file_n " \"%s\" failed",
|
|
978 file[i].name.data);
|
|
979 }
|
|
980
|
|
981 continue;
|
|
982 }
|
|
983 #else
|
66
|
984 if (user != (ngx_uid_t) NGX_CONF_UNSET_UINT) {
|
2
|
985
|
|
986 if (ngx_file_info((const char *) file[i].name.data, &fi) == -1) {
|
|
987 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
988 ngx_file_info_n " \"%s\" failed",
|
|
989 file[i].name.data);
|
|
990
|
|
991 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
992 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
993 ngx_close_file_n " \"%s\" failed",
|
|
994 file[i].name.data);
|
|
995 }
|
|
996 }
|
|
997
|
16
|
998 if (fi.st_uid != user) {
|
|
999 if (chown((const char *) file[i].name.data, user, -1) == -1) {
|
|
1000 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1001 "chown(\"%s\", %d) failed",
|
|
1002 file[i].name.data, user);
|
|
1003
|
|
1004 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1005 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1006 ngx_close_file_n " \"%s\" failed",
|
|
1007 file[i].name.data);
|
|
1008 }
|
|
1009 }
|
|
1010 }
|
|
1011
|
2
|
1012 if ((fi.st_mode & (S_IRUSR|S_IWUSR)) != (S_IRUSR|S_IWUSR)) {
|
|
1013
|
|
1014 fi.st_mode |= (S_IRUSR|S_IWUSR);
|
|
1015
|
|
1016 if (chmod((const char *) file[i].name.data, fi.st_mode) == -1) {
|
|
1017 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
16
|
1018 "chmod() \"%s\" failed", file[i].name.data);
|
2
|
1019
|
|
1020 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1021 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1022 ngx_close_file_n " \"%s\" failed",
|
|
1023 file[i].name.data);
|
|
1024 }
|
|
1025 }
|
|
1026 }
|
0
|
1027 }
|
|
1028
|
|
1029 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
|
1030 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1031 "fcntl(FD_CLOEXEC) \"%s\" failed",
|
|
1032 file[i].name.data);
|
|
1033
|
|
1034 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
1035 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1036 ngx_close_file_n " \"%s\" failed",
|
|
1037 file[i].name.data);
|
|
1038 }
|
|
1039
|
|
1040 continue;
|
|
1041 }
|
|
1042 #endif
|
|
1043
|
|
1044 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
1045 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1046 ngx_close_file_n " \"%s\" failed",
|
|
1047 file[i].name.data);
|
|
1048 }
|
|
1049
|
|
1050 file[i].fd = fd;
|
|
1051 }
|
|
1052
|
10
|
1053 #if !(NGX_WIN32)
|
0
|
1054
|
|
1055 if (cycle->log->file->fd != STDERR_FILENO) {
|
|
1056 if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) {
|
|
1057 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
1058 "dup2(STDERR) failed");
|
|
1059 }
|
|
1060 }
|
|
1061
|
|
1062 #endif
|
|
1063 }
|
|
1064
|
|
1065
|
272
|
1066 ngx_shm_zone_t *
|
|
1067 ngx_shared_memory_add(ngx_conf_t *cf, ngx_str_t *name, size_t size, void *tag)
|
|
1068 {
|
|
1069 ngx_uint_t i;
|
|
1070 ngx_shm_zone_t *shm_zone;
|
|
1071 ngx_list_part_t *part;
|
|
1072
|
|
1073 part = &cf->cycle->shared_memory.part;
|
|
1074 shm_zone = part->elts;
|
|
1075
|
|
1076 for (i = 0; /* void */ ; i++) {
|
|
1077
|
|
1078 if (i >= part->nelts) {
|
|
1079 if (part->next == NULL) {
|
|
1080 break;
|
|
1081 }
|
|
1082 part = part->next;
|
|
1083 shm_zone = part->elts;
|
|
1084 i = 0;
|
|
1085 }
|
|
1086
|
|
1087 if (name->len != shm_zone[i].name.len) {
|
|
1088 continue;
|
|
1089 }
|
|
1090
|
|
1091 if (ngx_strncmp(name->data, shm_zone[i].name.data, name->len) != 0) {
|
|
1092 continue;
|
|
1093 }
|
|
1094
|
|
1095 if (size && size != shm_zone[i].shm.size) {
|
|
1096 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1097 "the size %uz of shared memory zone \"%V\" "
|
|
1098 "conflicts with already declared size %uz",
|
|
1099 size, &shm_zone[i].name, shm_zone[i].shm.size);
|
|
1100 return NULL;
|
|
1101 }
|
|
1102
|
|
1103 if (tag != shm_zone[i].tag) {
|
|
1104 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1105 "the shared memory zone \"%V\" is "
|
|
1106 "already declared for a different use",
|
|
1107 &shm_zone[i].name);
|
|
1108 return NULL;
|
|
1109 }
|
|
1110
|
|
1111 return &shm_zone[i];
|
|
1112 }
|
|
1113
|
|
1114 shm_zone = ngx_list_push(&cf->cycle->shared_memory);
|
|
1115
|
|
1116 if (shm_zone == NULL) {
|
|
1117 return NULL;
|
|
1118 }
|
|
1119
|
|
1120 shm_zone->data = NULL;
|
|
1121 shm_zone->shm.log = cf->cycle->log;
|
|
1122 shm_zone->shm.size = size;
|
|
1123 shm_zone->init = NULL;
|
|
1124 shm_zone->name = *name;
|
|
1125 shm_zone->tag = tag;
|
|
1126
|
|
1127 return shm_zone;
|
|
1128 }
|
|
1129
|
|
1130
|
112
|
1131 static void
|
|
1132 ngx_clean_old_cycles(ngx_event_t *ev)
|
0
|
1133 {
|
|
1134 ngx_uint_t i, n, found, live;
|
|
1135 ngx_log_t *log;
|
|
1136 ngx_cycle_t **cycle;
|
|
1137
|
|
1138 log = ngx_cycle->log;
|
|
1139 ngx_temp_pool->log = log;
|
|
1140
|
|
1141 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycles");
|
|
1142
|
|
1143 live = 0;
|
|
1144
|
|
1145 cycle = ngx_old_cycles.elts;
|
|
1146 for (i = 0; i < ngx_old_cycles.nelts; i++) {
|
|
1147
|
|
1148 if (cycle[i] == NULL) {
|
|
1149 continue;
|
|
1150 }
|
|
1151
|
|
1152 found = 0;
|
|
1153
|
|
1154 for (n = 0; n < cycle[i]->connection_n; n++) {
|
110
|
1155 if (cycle[i]->connections[n].fd != (ngx_socket_t) -1) {
|
0
|
1156 found = 1;
|
|
1157
|
|
1158 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "live fd:%d", n);
|
|
1159
|
|
1160 break;
|
|
1161 }
|
|
1162 }
|
|
1163
|
|
1164 if (found) {
|
|
1165 live = 1;
|
|
1166 continue;
|
|
1167 }
|
|
1168
|
|
1169 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycle: %d", i);
|
|
1170
|
|
1171 ngx_destroy_pool(cycle[i]->pool);
|
|
1172 cycle[i] = NULL;
|
|
1173 }
|
|
1174
|
|
1175 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "old cycles status: %d", live);
|
|
1176
|
|
1177 if (live) {
|
|
1178 ngx_add_timer(ev, 30000);
|
|
1179
|
|
1180 } else {
|
|
1181 ngx_destroy_pool(ngx_temp_pool);
|
|
1182 ngx_temp_pool = NULL;
|
|
1183 ngx_old_cycles.nelts = 0;
|
|
1184 }
|
|
1185 }
|