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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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28
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12 static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2);
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0
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13 static void ngx_clean_old_cycles(ngx_event_t *ev);
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14
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15
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16 volatile ngx_cycle_t *ngx_cycle;
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17 ngx_array_t ngx_old_cycles;
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18
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19 static ngx_pool_t *ngx_temp_pool;
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20 static ngx_event_t ngx_cleaner_event;
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21
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22 ngx_uint_t ngx_test_config;
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23
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24 #if (NGX_THREADS)
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25 ngx_tls_key_t ngx_core_tls_key;
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26 #endif
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27
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28
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29 /* STUB NAME */
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30 static ngx_connection_t dumb;
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31 /* STUB */
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32
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33 #ifdef NGX_ERROR_LOG_PATH
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34 static ngx_str_t error_log = ngx_string(NGX_ERROR_LOG_PATH);
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35 #else
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36 static ngx_str_t error_log = ngx_null_string;
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37 #endif
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38
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39
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40 ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle)
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41 {
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72
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42 void *rv;
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43 ngx_uint_t i, n, failed;
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44 ngx_log_t *log;
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45 ngx_conf_t conf;
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46 ngx_pool_t *pool;
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47 ngx_cycle_t *cycle, **old;
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48 ngx_socket_t fd;
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49 ngx_list_part_t *part;
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50 ngx_open_file_t *file;
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51 ngx_listening_t *ls, *nls;
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52 ngx_core_conf_t *ccf;
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53 ngx_core_module_t *module;
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54 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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55 struct accept_filter_arg af;
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56 #endif
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57 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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58 int timeout;
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59 #endif
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0
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60
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61 log = old_cycle->log;
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62
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56
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63 pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log);
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50
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64 if (pool == NULL) {
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0
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65 return NULL;
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66 }
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67 pool->log = log;
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68
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50
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69 cycle = ngx_pcalloc(pool, sizeof(ngx_cycle_t));
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70 if (cycle == NULL) {
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0
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71 ngx_destroy_pool(pool);
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72 return NULL;
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73 }
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50
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74
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0
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75 cycle->pool = pool;
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76 cycle->log = log;
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77 cycle->old_cycle = old_cycle;
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78 cycle->conf_file = old_cycle->conf_file;
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79 cycle->root.len = sizeof(NGX_PREFIX) - 1;
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80 cycle->root.data = (u_char *) NGX_PREFIX;
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81
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82
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83 n = old_cycle->pathes.nelts ? old_cycle->pathes.nelts : 10;
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50
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84
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85 cycle->pathes.elts = ngx_pcalloc(pool, n * sizeof(ngx_path_t *));
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86 if (cycle->pathes.elts == NULL) {
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0
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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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50
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90
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0
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91 cycle->pathes.nelts = 0;
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92 cycle->pathes.size = sizeof(ngx_path_t *);
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93 cycle->pathes.nalloc = n;
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94 cycle->pathes.pool = pool;
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95
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96
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97 if (old_cycle->open_files.part.nelts) {
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98 n = old_cycle->open_files.part.nelts;
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99 for (part = old_cycle->open_files.part.next; part; part = part->next) {
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100 n += part->nelts;
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101 }
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102
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103 } else {
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104 n = 20;
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105 }
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106
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107 if (ngx_list_init(&cycle->open_files, pool, n, sizeof(ngx_open_file_t))
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108 == NGX_ERROR)
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109 {
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110 ngx_destroy_pool(pool);
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111 return NULL;
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112 }
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113
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114
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50
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115 cycle->new_log = ngx_log_create_errlog(cycle, NULL);
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116 if (cycle->new_log == NULL) {
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0
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117 ngx_destroy_pool(pool);
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118 return NULL;
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119 }
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120
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121 cycle->new_log->file->name = error_log;
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122
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123
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124 n = old_cycle->listening.nelts ? old_cycle->listening.nelts : 10;
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50
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125
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0
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126 cycle->listening.elts = ngx_pcalloc(pool, n * sizeof(ngx_listening_t));
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127 if (cycle->listening.elts == NULL) {
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128 ngx_destroy_pool(pool);
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129 return NULL;
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130 }
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50
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131
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0
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132 cycle->listening.nelts = 0;
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133 cycle->listening.size = sizeof(ngx_listening_t);
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134 cycle->listening.nalloc = n;
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135 cycle->listening.pool = pool;
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136
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137
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138 cycle->conf_ctx = ngx_pcalloc(pool, ngx_max_module * sizeof(void *));
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139 if (cycle->conf_ctx == NULL) {
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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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145 for (i = 0; ngx_modules[i]; i++) {
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146 if (ngx_modules[i]->type != NGX_CORE_MODULE) {
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147 continue;
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148 }
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149
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150 module = ngx_modules[i]->ctx;
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151
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152 if (module->create_conf) {
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153 rv = module->create_conf(cycle);
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154 if (rv == NGX_CONF_ERROR) {
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155 ngx_destroy_pool(pool);
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156 return NULL;
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157 }
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158 cycle->conf_ctx[ngx_modules[i]->index] = rv;
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159 }
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160 }
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161
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162
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163 ngx_memzero(&conf, sizeof(ngx_conf_t));
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164 /* STUB: init array ? */
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50
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165 conf.args = ngx_array_create(pool, 10, sizeof(ngx_str_t));
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0
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166 if (conf.args == NULL) {
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167 ngx_destroy_pool(pool);
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168 return NULL;
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169 }
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170
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171 conf.ctx = cycle->conf_ctx;
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172 conf.cycle = cycle;
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173 conf.pool = pool;
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174 conf.log = log;
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175 conf.module_type = NGX_CORE_MODULE;
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176 conf.cmd_type = NGX_MAIN_CONF;
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177
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4
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178 #if 0
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179 log->log_level = NGX_LOG_DEBUG_ALL;
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180 #endif
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0
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181
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182 if (ngx_conf_parse(&conf, &cycle->conf_file) != NGX_CONF_OK) {
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183 ngx_destroy_pool(pool);
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184 return NULL;
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185 }
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186
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187 if (ngx_test_config) {
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188 ngx_log_error(NGX_LOG_INFO, log, 0,
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189 "the configuration file %s syntax is ok",
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190 cycle->conf_file.data);
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191 }
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192
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193
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194 for (i = 0; ngx_modules[i]; i++) {
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195 if (ngx_modules[i]->type != NGX_CORE_MODULE) {
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196 continue;
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197 }
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198
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199 module = ngx_modules[i]->ctx;
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200
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201 if (module->init_conf) {
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202 if (module->init_conf(cycle, cycle->conf_ctx[ngx_modules[i]->index])
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203 == NGX_CONF_ERROR)
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204 {
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205 ngx_destroy_pool(pool);
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206 return NULL;
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207 }
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208 }
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209 }
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210
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211
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212 failed = 0;
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213
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214
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10
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215 #if !(NGX_WIN32)
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0
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216 if (ngx_create_pidfile(cycle, old_cycle) == NGX_ERROR) {
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217 failed = 1;
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218 }
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219 #endif
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220
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221
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222 if (!failed) {
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16
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223 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx,
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224 ngx_core_module);
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225
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226 if (ngx_create_pathes(cycle, ccf->user) == NGX_ERROR) {
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227 failed = 1;
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228 }
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229 }
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230
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231
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232 if (!failed) {
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0
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233
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10
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234 /* open the new files */
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235
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0
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236 part = &cycle->open_files.part;
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237 file = part->elts;
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238
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239 for (i = 0; /* void */ ; i++) {
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240
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241 if (i >= part->nelts) {
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242 if (part->next == NULL) {
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243 break;
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244 }
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245 part = part->next;
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246 file = part->elts;
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247 i = 0;
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248 }
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249
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250 if (file[i].name.data == NULL) {
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251 continue;
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252 }
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253
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254 file[i].fd = ngx_open_file(file[i].name.data,
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255 NGX_FILE_RDWR,
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256 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
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257
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258 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
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10
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259 "log: %p %d \"%s\"",
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0
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260 &file[i], file[i].fd, file[i].name.data);
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261
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262 if (file[i].fd == NGX_INVALID_FILE) {
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263 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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264 ngx_open_file_n " \"%s\" failed",
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265 file[i].name.data);
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266 failed = 1;
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267 break;
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268 }
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269
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10
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270 #if (NGX_WIN32)
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0
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271 if (ngx_file_append_mode(file[i].fd) == NGX_ERROR) {
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272 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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273 ngx_file_append_mode_n " \"%s\" failed",
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274 file[i].name.data);
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275 failed = 1;
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276 break;
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277 }
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278 #else
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279 if (fcntl(file[i].fd, F_SETFD, FD_CLOEXEC) == -1) {
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280 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
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281 "fcntl(FD_CLOEXEC) \"%s\" failed",
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282 file[i].name.data);
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283 failed = 1;
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284 break;
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285 }
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286 #endif
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287 }
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288 }
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289
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290 cycle->log = cycle->new_log;
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291 pool->log = cycle->new_log;
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292
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293 if (cycle->log->log_level == 0) {
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294 cycle->log->log_level = NGX_LOG_ERR;
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295 }
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296
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297 if (!failed) {
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10
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298
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299 /* handle the listening sockets */
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300
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0
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301 if (old_cycle->listening.nelts) {
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302 ls = old_cycle->listening.elts;
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303 for (i = 0; i < old_cycle->listening.nelts; i++) {
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304 ls[i].remain = 0;
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305 }
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306
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307 nls = cycle->listening.elts;
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308 for (n = 0; n < cycle->listening.nelts; n++) {
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10
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309
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0
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310 for (i = 0; i < old_cycle->listening.nelts; i++) {
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311 if (ls[i].ignore) {
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312 continue;
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313 }
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314
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10
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315 if (ngx_cmp_sockaddr(nls[n].sockaddr, ls[i].sockaddr)
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72
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316 == NGX_OK)
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0
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317 {
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318 fd = ls[i].fd;
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10
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319 #if (NGX_WIN32)
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0
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320 /*
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321 * Winsock assignes a socket number divisible by 4 so
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322 * to find a connection we divide a socket number by 4.
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323 */
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324
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325 fd /= 4;
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326 #endif
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327 if (fd >= (ngx_socket_t) cycle->connection_n) {
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328 ngx_log_error(NGX_LOG_EMERG, log, 0,
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329 "%d connections is not enough to hold "
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10
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330 "an open listening socket on %V, "
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0
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331 "required at least %d connections",
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332 cycle->connection_n,
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10
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333 &ls[i].addr_text, fd);
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0
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334 failed = 1;
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335 break;
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336 }
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337
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338 nls[n].fd = ls[i].fd;
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72
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339 nls[n].remain = 1;
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0
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340 ls[i].remain = 1;
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72
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341
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342 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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343
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344 /*
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345 * FreeBSD, except the most recent versions,
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346 * can not remove accept filter
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347 */
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348 nls[n].deferred_accept = ls[i].deferred_accept;
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349
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350 if (ls[i].accept_filter && nls[n].accept_filter) {
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351 if (ngx_strcmp(ls[i].accept_filter,
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352 nls[n].accept_filter) != 0)
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353 {
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354 nls[n].delete_deferred = 1;
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355 nls[n].add_deferred = 1;
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356 }
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357
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358 } else if (ls[i].accept_filter) {
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359 nls[n].delete_deferred = 1;
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360
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361 } else if (nls[n].accept_filter) {
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362 nls[n].add_deferred = 1;
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363 }
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364 #endif
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365
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366 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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367
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368 if (ls[n].deferred_accept && !nls[n].deferred_accept) {
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369 nls[n].delete_deferred = 1;
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370
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371 } else if (ls[i].deferred_accept
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372 != nls[n].deferred_accept)
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373 {
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374 nls[n].add_deferred = 1;
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375 }
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376 #endif
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0
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377 break;
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378 }
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379 }
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380
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381 if (nls[n].fd == -1) {
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4
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382 nls[n].open = 1;
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0
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383 }
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384 }
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385
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386 } else {
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387 ls = cycle->listening.elts;
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388 for (i = 0; i < cycle->listening.nelts; i++) {
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4
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389 ls[i].open = 1;
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72
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390 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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391 if (ls[i].accept_filter) {
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392 ls[i].add_deferred = 1;
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393 }
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394 #endif
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395 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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396 if (ls[i].deferred_accept) {
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397 ls[i].add_deferred = 1;
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398 }
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399 #endif
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0
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400 }
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401 }
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402
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403 if (!ngx_test_config && !failed) {
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404 if (ngx_open_listening_sockets(cycle) == NGX_ERROR) {
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405 failed = 1;
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406 }
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72
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407
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408 #if (NGX_HAVE_DEFERRED_ACCEPT)
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409
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410 if (!failed) {
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411 ls = cycle->listening.elts;
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412 for (i = 0; i < cycle->listening.nelts; i++) {
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413
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|
414 #ifdef SO_ACCEPTFILTER
|
|
|
415 if (ls[i].delete_deferred) {
|
|
|
416 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER,
|
|
|
417 NULL, 0) == -1)
|
|
|
418 {
|
|
|
419 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
420 "setsockopt(SO_ACCEPTFILTER, NULL) "
|
|
|
421 "for %V failed, ignored",
|
|
|
422 &ls[i].addr_text);
|
|
|
423
|
|
|
424 if (ls[i].accept_filter) {
|
|
|
425 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
426 "could not change the accept filter "
|
|
|
427 "to \"%s\" for %V, ignored",
|
|
|
428 ls[i].accept_filter, &ls[i].addr_text);
|
|
|
429 }
|
|
|
430
|
|
|
431 continue;
|
|
|
432 }
|
|
|
433
|
|
|
434 ls[i].deferred_accept = 0;
|
|
|
435 }
|
|
|
436
|
|
|
437 if (ls[i].add_deferred) {
|
|
|
438 ngx_memzero(&af, sizeof(struct accept_filter_arg));
|
|
|
439 (void) ngx_cpystrn((u_char *) af.af_name,
|
|
|
440 (u_char *) ls[i].accept_filter, 16);
|
|
|
441
|
|
|
442 if (setsockopt(ls[i].fd, SOL_SOCKET, SO_ACCEPTFILTER,
|
|
|
443 &af, sizeof(struct accept_filter_arg)) == -1)
|
|
|
444 {
|
|
|
445 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
446 "setsockopt(SO_ACCEPTFILTER, \"%s\") "
|
|
|
447 "for %V failed, ignored",
|
|
|
448 ls[i].accept_filter, &ls[i].addr_text);
|
|
|
449 continue;
|
|
|
450 }
|
|
|
451
|
|
|
452 ls[i].deferred_accept = 1;
|
|
|
453 }
|
|
|
454 #endif
|
|
|
455
|
|
|
456 #ifdef TCP_DEFER_ACCEPT
|
|
|
457 if (ls[i].add_deferred || ls[i].delete_deferred) {
|
|
|
458 timeout = 0;
|
|
|
459
|
|
|
460 if (ls[i].add_deferred) {
|
|
|
461 timeout = (int) (ls[i].post_accept_timeout / 1000);
|
|
|
462 }
|
|
|
463
|
|
|
464 if (setsockopt(ls[i].fd, IPPROTO_TCP, TCP_DEFER_ACCEPT,
|
|
|
465 &timeout, sizeof(int)) == -1)
|
|
|
466 {
|
|
|
467 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
468 "setsockopt(TCP_DEFER_ACCEPT, %d) "
|
|
|
469 "for %V failed, ignored",
|
|
|
470 timeout, &ls[i].addr_text);
|
|
|
471 continue;
|
|
|
472 }
|
|
|
473 }
|
|
|
474
|
|
|
475 if (ls[i].add_deferred) {
|
|
|
476 ls[i].deferred_accept = 1;
|
|
|
477 }
|
|
|
478 #endif
|
|
|
479 }
|
|
|
480 }
|
|
|
481 #endif
|
|
0
|
482 }
|
|
|
483 }
|
|
|
484
|
|
|
485 if (failed) {
|
|
|
486
|
|
|
487 /* rollback the new cycle configuration */
|
|
|
488
|
|
|
489 part = &cycle->open_files.part;
|
|
|
490 file = part->elts;
|
|
|
491
|
|
|
492 for (i = 0; /* void */ ; i++) {
|
|
|
493
|
|
|
494 if (i >= part->nelts) {
|
|
|
495 if (part->next == NULL) {
|
|
|
496 break;
|
|
|
497 }
|
|
|
498 part = part->next;
|
|
|
499 file = part->elts;
|
|
|
500 i = 0;
|
|
|
501 }
|
|
|
502
|
|
|
503 if (file[i].fd == NGX_INVALID_FILE
|
|
|
504 || file[i].fd == ngx_stderr_fileno)
|
|
|
505 {
|
|
|
506 continue;
|
|
|
507 }
|
|
|
508
|
|
|
509 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
|
510 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
|
511 ngx_close_file_n " \"%s\" failed",
|
|
|
512 file[i].name.data);
|
|
|
513 }
|
|
|
514 }
|
|
|
515
|
|
|
516 if (ngx_test_config) {
|
|
|
517 ngx_destroy_pool(pool);
|
|
|
518 return NULL;
|
|
|
519 }
|
|
|
520
|
|
|
521 ls = cycle->listening.elts;
|
|
|
522 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
4
|
523 if (ls[i].fd == -1 || !ls[i].open) {
|
|
0
|
524 continue;
|
|
|
525 }
|
|
|
526
|
|
|
527 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
|
528 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
529 ngx_close_socket_n " %V failed",
|
|
|
530 &ls[i].addr_text);
|
|
0
|
531 }
|
|
|
532 }
|
|
|
533
|
|
|
534 ngx_destroy_pool(pool);
|
|
|
535 return NULL;
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
|
539 /* commit the new cycle configuration */
|
|
|
540
|
|
10
|
541 #if !(NGX_WIN32)
|
|
0
|
542
|
|
|
543 if (!ngx_test_config && cycle->log->file->fd != STDERR_FILENO) {
|
|
|
544
|
|
|
545 ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0,
|
|
10
|
546 "dup2: %p %d \"%s\"",
|
|
0
|
547 cycle->log->file,
|
|
|
548 cycle->log->file->fd, cycle->log->file->name.data);
|
|
|
549
|
|
|
550 if (dup2(cycle->log->file->fd, STDERR_FILENO) == NGX_ERROR) {
|
|
|
551 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
|
552 "dup2(STDERR) failed");
|
|
|
553 /* fatal */
|
|
|
554 exit(1);
|
|
|
555 }
|
|
|
556 }
|
|
|
557
|
|
|
558 #endif
|
|
|
559
|
|
|
560 pool->log = cycle->log;
|
|
|
561
|
|
|
562 for (i = 0; ngx_modules[i]; i++) {
|
|
|
563 if (ngx_modules[i]->init_module) {
|
|
|
564 if (ngx_modules[i]->init_module(cycle) == NGX_ERROR) {
|
|
|
565 /* fatal */
|
|
|
566 exit(1);
|
|
|
567 }
|
|
|
568 }
|
|
|
569 }
|
|
|
570
|
|
16
|
571
|
|
0
|
572 /* close and delete stuff that lefts from an old cycle */
|
|
|
573
|
|
|
574 /* close the unneeded listening sockets */
|
|
|
575
|
|
|
576 ls = old_cycle->listening.elts;
|
|
|
577 for (i = 0; i < old_cycle->listening.nelts; i++) {
|
|
|
578 if (ls[i].remain) {
|
|
|
579 continue;
|
|
|
580 }
|
|
|
581
|
|
|
582 if (ngx_close_socket(ls[i].fd) == -1) {
|
|
|
583 ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
|
|
10
|
584 ngx_close_socket_n " %V failed",
|
|
|
585 &ls[i].addr_text);
|
|
0
|
586 }
|
|
|
587 }
|
|
|
588
|
|
|
589
|
|
|
590 /* close the unneeded open files */
|
|
|
591
|
|
|
592 part = &old_cycle->open_files.part;
|
|
|
593 file = part->elts;
|
|
|
594
|
|
|
595 for (i = 0; /* void */ ; i++) {
|
|
|
596
|
|
|
597 if (i >= part->nelts) {
|
|
|
598 if (part->next == NULL) {
|
|
|
599 break;
|
|
|
600 }
|
|
|
601 part = part->next;
|
|
|
602 file = part->elts;
|
|
|
603 i = 0;
|
|
|
604 }
|
|
|
605
|
|
|
606 if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) {
|
|
|
607 continue;
|
|
|
608 }
|
|
|
609
|
|
|
610 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
|
611 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
|
|
|
612 ngx_close_file_n " \"%s\" failed",
|
|
|
613 file[i].name.data);
|
|
|
614 }
|
|
|
615 }
|
|
|
616
|
|
|
617 if (old_cycle->connections == NULL) {
|
|
|
618 /* an old cycle is an init cycle */
|
|
|
619 ngx_destroy_pool(old_cycle->pool);
|
|
|
620 return cycle;
|
|
|
621 }
|
|
|
622
|
|
|
623 if (ngx_process == NGX_PROCESS_MASTER) {
|
|
|
624 ngx_destroy_pool(old_cycle->pool);
|
|
|
625 return cycle;
|
|
|
626 }
|
|
|
627
|
|
|
628 if (ngx_temp_pool == NULL) {
|
|
|
629 ngx_temp_pool = ngx_create_pool(128, cycle->log);
|
|
|
630 if (ngx_temp_pool == NULL) {
|
|
|
631 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
632 "can not create ngx_temp_pool");
|
|
|
633 exit(1);
|
|
|
634 }
|
|
|
635
|
|
|
636 n = 10;
|
|
|
637 ngx_old_cycles.elts = ngx_pcalloc(ngx_temp_pool,
|
|
|
638 n * sizeof(ngx_cycle_t *));
|
|
|
639 if (ngx_old_cycles.elts == NULL) {
|
|
|
640 exit(1);
|
|
|
641 }
|
|
|
642 ngx_old_cycles.nelts = 0;
|
|
|
643 ngx_old_cycles.size = sizeof(ngx_cycle_t *);
|
|
|
644 ngx_old_cycles.nalloc = n;
|
|
|
645 ngx_old_cycles.pool = ngx_temp_pool;
|
|
|
646
|
|
58
|
647 ngx_cleaner_event.handler = ngx_clean_old_cycles;
|
|
0
|
648 ngx_cleaner_event.log = cycle->log;
|
|
|
649 ngx_cleaner_event.data = &dumb;
|
|
|
650 dumb.fd = (ngx_socket_t) -1;
|
|
|
651 }
|
|
|
652
|
|
|
653 ngx_temp_pool->log = cycle->log;
|
|
|
654
|
|
50
|
655 old = ngx_array_push(&ngx_old_cycles);
|
|
0
|
656 if (old == NULL) {
|
|
|
657 exit(1);
|
|
|
658 }
|
|
|
659 *old = old_cycle;
|
|
|
660
|
|
|
661 if (!ngx_cleaner_event.timer_set) {
|
|
|
662 ngx_add_timer(&ngx_cleaner_event, 30000);
|
|
|
663 ngx_cleaner_event.timer_set = 1;
|
|
|
664 }
|
|
|
665
|
|
|
666 return cycle;
|
|
|
667 }
|
|
|
668
|
|
|
669
|
|
28
|
670 static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2)
|
|
10
|
671 {
|
|
|
672 struct sockaddr_in *sin1, *sin2;
|
|
|
673
|
|
|
674 /* AF_INET only */
|
|
|
675
|
|
28
|
676 if (sa1->sa_family != AF_INET || sa2->sa_family != AF_INET) {
|
|
10
|
677 return NGX_DECLINED;
|
|
|
678 }
|
|
|
679
|
|
28
|
680 sin1 = (struct sockaddr_in *) sa1;
|
|
|
681 sin2 = (struct sockaddr_in *) sa2;
|
|
10
|
682
|
|
|
683 if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) {
|
|
|
684 return NGX_DECLINED;
|
|
|
685 }
|
|
|
686
|
|
|
687 if (sin1->sin_port != sin2->sin_port) {
|
|
|
688 return NGX_DECLINED;
|
|
|
689 }
|
|
|
690
|
|
|
691 return NGX_OK;
|
|
|
692 }
|
|
|
693
|
|
|
694
|
|
|
695 #if !(NGX_WIN32)
|
|
0
|
696
|
|
|
697 ngx_int_t ngx_create_pidfile(ngx_cycle_t *cycle, ngx_cycle_t *old_cycle)
|
|
|
698 {
|
|
|
699 ngx_uint_t trunc;
|
|
|
700 size_t len;
|
|
50
|
701 u_char pid[NGX_INT64_LEN];
|
|
0
|
702 ngx_file_t file;
|
|
|
703 ngx_core_conf_t *ccf, *old_ccf;
|
|
|
704
|
|
|
705 if (!ngx_test_config && old_cycle && old_cycle->conf_ctx == NULL) {
|
|
|
706
|
|
|
707 /*
|
|
|
708 * do not create the pid file in the first ngx_init_cycle() call
|
|
|
709 * because we need to write the demonized process pid
|
|
|
710 */
|
|
|
711
|
|
|
712 return NGX_OK;
|
|
|
713 }
|
|
|
714
|
|
|
715 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
716
|
|
|
717 if (!ngx_test_config && old_cycle) {
|
|
|
718 old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx,
|
|
|
719 ngx_core_module);
|
|
|
720
|
|
|
721 if (ccf->pid.len == old_ccf->pid.len
|
|
|
722 && ngx_strcmp(ccf->pid.data, old_ccf->pid.data) == 0)
|
|
|
723 {
|
|
|
724
|
|
|
725 /* pid file name is the same */
|
|
|
726
|
|
|
727 return NGX_OK;
|
|
|
728 }
|
|
|
729 }
|
|
|
730
|
|
|
731 ngx_memzero(&file, sizeof(ngx_file_t));
|
|
|
732 file.name = (ngx_inherited && getppid() > 1) ? ccf->newpid : ccf->pid;
|
|
|
733 file.log = cycle->log;
|
|
|
734
|
|
|
735 trunc = ngx_test_config ? 0: NGX_FILE_TRUNCATE;
|
|
|
736
|
|
|
737 file.fd = ngx_open_file(file.name.data, NGX_FILE_RDWR,
|
|
|
738 NGX_FILE_CREATE_OR_OPEN|trunc);
|
|
|
739
|
|
|
740 if (file.fd == NGX_INVALID_FILE) {
|
|
|
741 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
742 ngx_open_file_n " \"%s\" failed", file.name.data);
|
|
|
743 return NGX_ERROR;
|
|
|
744 }
|
|
|
745
|
|
|
746 if (!ngx_test_config) {
|
|
10
|
747 len = ngx_sprintf(pid, "%P", ngx_pid) - pid;
|
|
|
748
|
|
0
|
749 if (ngx_write_file(&file, pid, len, 0) == NGX_ERROR) {
|
|
|
750 return NGX_ERROR;
|
|
|
751 }
|
|
|
752 }
|
|
|
753
|
|
|
754 if (ngx_close_file(file.fd) == NGX_FILE_ERROR) {
|
|
|
755 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
756 ngx_close_file_n " \"%s\" failed", file.name.data);
|
|
|
757 }
|
|
|
758
|
|
|
759 ngx_delete_pidfile(old_cycle);
|
|
|
760
|
|
|
761 return NGX_OK;
|
|
|
762 }
|
|
|
763
|
|
|
764
|
|
|
765 void ngx_delete_pidfile(ngx_cycle_t *cycle)
|
|
|
766 {
|
|
|
767 u_char *name;
|
|
|
768 ngx_core_conf_t *ccf;
|
|
|
769
|
|
|
770 if (cycle == NULL || cycle->conf_ctx == NULL) {
|
|
|
771 return;
|
|
|
772 }
|
|
|
773
|
|
|
774 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
775
|
|
|
776 if (ngx_inherited && getppid() > 1) {
|
|
|
777 name = ccf->newpid.data;
|
|
|
778
|
|
|
779 } else {
|
|
|
780 name = ccf->pid.data;
|
|
|
781 }
|
|
|
782
|
|
|
783 if (ngx_delete_file(name) == NGX_FILE_ERROR) {
|
|
|
784 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
785 ngx_delete_file_n " \"%s\" failed", name);
|
|
|
786 }
|
|
|
787 }
|
|
|
788
|
|
|
789 #endif
|
|
|
790
|
|
|
791
|
|
|
792 void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user)
|
|
|
793 {
|
|
|
794 ngx_fd_t fd;
|
|
|
795 ngx_uint_t i;
|
|
|
796 ngx_list_part_t *part;
|
|
|
797 ngx_open_file_t *file;
|
|
10
|
798 #if !(NGX_WIN32)
|
|
2
|
799 ngx_file_info_t fi;
|
|
|
800 #endif
|
|
0
|
801
|
|
|
802 part = &cycle->open_files.part;
|
|
|
803 file = part->elts;
|
|
|
804
|
|
|
805 for (i = 0; /* void */ ; i++) {
|
|
|
806
|
|
|
807 if (i >= part->nelts) {
|
|
|
808 if (part->next == NULL) {
|
|
|
809 break;
|
|
|
810 }
|
|
|
811 part = part->next;
|
|
72
|
812 file = part->elts;
|
|
0
|
813 i = 0;
|
|
|
814 }
|
|
|
815
|
|
|
816 if (file[i].name.data == NULL) {
|
|
|
817 continue;
|
|
|
818 }
|
|
|
819
|
|
|
820 fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR,
|
|
|
821 NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND);
|
|
|
822
|
|
|
823 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
824 "reopen file \"%s\", old:%d new:%d",
|
|
|
825 file[i].name.data, file[i].fd, fd);
|
|
|
826
|
|
|
827 if (fd == NGX_INVALID_FILE) {
|
|
|
828 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
829 ngx_open_file_n " \"%s\" failed", file[i].name.data);
|
|
|
830 continue;
|
|
|
831 }
|
|
|
832
|
|
10
|
833 #if (NGX_WIN32)
|
|
0
|
834 if (ngx_file_append_mode(fd) == NGX_ERROR) {
|
|
|
835 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
836 ngx_file_append_mode_n " \"%s\" failed",
|
|
|
837 file[i].name.data);
|
|
|
838
|
|
|
839 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
840 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
841 ngx_close_file_n " \"%s\" failed",
|
|
|
842 file[i].name.data);
|
|
|
843 }
|
|
|
844
|
|
|
845 continue;
|
|
|
846 }
|
|
|
847 #else
|
|
66
|
848 if (user != (ngx_uid_t) NGX_CONF_UNSET_UINT) {
|
|
2
|
849
|
|
|
850 if (ngx_file_info((const char *) file[i].name.data, &fi) == -1) {
|
|
|
851 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
852 ngx_file_info_n " \"%s\" failed",
|
|
|
853 file[i].name.data);
|
|
|
854
|
|
|
855 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
856 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
857 ngx_close_file_n " \"%s\" failed",
|
|
|
858 file[i].name.data);
|
|
|
859 }
|
|
|
860 }
|
|
|
861
|
|
16
|
862 if (fi.st_uid != user) {
|
|
|
863 if (chown((const char *) file[i].name.data, user, -1) == -1) {
|
|
|
864 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
865 "chown(\"%s\", %d) failed",
|
|
|
866 file[i].name.data, user);
|
|
|
867
|
|
|
868 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
869 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
870 ngx_close_file_n " \"%s\" failed",
|
|
|
871 file[i].name.data);
|
|
|
872 }
|
|
|
873 }
|
|
|
874 }
|
|
|
875
|
|
2
|
876 if ((fi.st_mode & (S_IRUSR|S_IWUSR)) != (S_IRUSR|S_IWUSR)) {
|
|
|
877
|
|
|
878 fi.st_mode |= (S_IRUSR|S_IWUSR);
|
|
|
879
|
|
|
880 if (chmod((const char *) file[i].name.data, fi.st_mode) == -1) {
|
|
|
881 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
16
|
882 "chmod() \"%s\" failed", file[i].name.data);
|
|
2
|
883
|
|
|
884 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
885 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
886 ngx_close_file_n " \"%s\" failed",
|
|
|
887 file[i].name.data);
|
|
|
888 }
|
|
|
889 }
|
|
|
890 }
|
|
0
|
891 }
|
|
|
892
|
|
|
893 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
|
|
894 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
895 "fcntl(FD_CLOEXEC) \"%s\" failed",
|
|
|
896 file[i].name.data);
|
|
|
897
|
|
|
898 if (ngx_close_file(fd) == NGX_FILE_ERROR) {
|
|
|
899 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
900 ngx_close_file_n " \"%s\" failed",
|
|
|
901 file[i].name.data);
|
|
|
902 }
|
|
|
903
|
|
|
904 continue;
|
|
|
905 }
|
|
|
906 #endif
|
|
|
907
|
|
|
908 if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) {
|
|
|
909 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
910 ngx_close_file_n " \"%s\" failed",
|
|
|
911 file[i].name.data);
|
|
|
912 }
|
|
|
913
|
|
|
914 file[i].fd = fd;
|
|
|
915 }
|
|
|
916
|
|
10
|
917 #if !(NGX_WIN32)
|
|
0
|
918
|
|
|
919 if (cycle->log->file->fd != STDERR_FILENO) {
|
|
|
920 if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) {
|
|
|
921 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
|
|
|
922 "dup2(STDERR) failed");
|
|
|
923 }
|
|
|
924 }
|
|
|
925
|
|
|
926 #endif
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 static void ngx_clean_old_cycles(ngx_event_t *ev)
|
|
|
931 {
|
|
|
932 ngx_uint_t i, n, found, live;
|
|
|
933 ngx_log_t *log;
|
|
|
934 ngx_cycle_t **cycle;
|
|
|
935
|
|
|
936 log = ngx_cycle->log;
|
|
|
937 ngx_temp_pool->log = log;
|
|
|
938
|
|
|
939 ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycles");
|
|
|
940
|
|
|
941 live = 0;
|
|
|
942
|
|
|
943 cycle = ngx_old_cycles.elts;
|
|
|
944 for (i = 0; i < ngx_old_cycles.nelts; i++) {
|
|
|
945
|
|
|
946 if (cycle[i] == NULL) {
|
|
|
947 continue;
|
|
|
948 }
|
|
|
949
|
|
|
950 found = 0;
|
|
|
951
|
|
|
952 for (n = 0; n < cycle[i]->connection_n; n++) {
|
|
|
953 if (cycle[i]->connections[n].fd != (ngx_socket_t) -1) {
|
|
|
954 found = 1;
|
|
|
955
|
|
|
956 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "live fd:%d", n);
|
|
|
957
|
|
|
958 break;
|
|
|
959 }
|
|
|
960 }
|
|
|
961
|
|
|
962 if (found) {
|
|
|
963 live = 1;
|
|
|
964 continue;
|
|
|
965 }
|
|
|
966
|
|
|
967 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycle: %d", i);
|
|
|
968
|
|
|
969 ngx_destroy_pool(cycle[i]->pool);
|
|
|
970 cycle[i] = NULL;
|
|
|
971 }
|
|
|
972
|
|
|
973 ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "old cycles status: %d", live);
|
|
|
974
|
|
|
975 if (live) {
|
|
|
976 ngx_add_timer(ev, 30000);
|
|
|
977
|
|
|
978 } else {
|
|
|
979 ngx_destroy_pool(ngx_temp_pool);
|
|
|
980 ngx_temp_pool = NULL;
|
|
|
981 ngx_old_cycles.nelts = 0;
|
|
|
982 }
|
|
|
983 }
|
