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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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12 #define DEFAULT_CONNECTIONS 512
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13
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14
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16
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15 extern ngx_module_t ngx_kqueue_module;
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16 extern ngx_module_t ngx_devpoll_module;
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17 extern ngx_module_t ngx_epoll_module;
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18 extern ngx_module_t ngx_rtsig_module;
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0
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19 extern ngx_module_t ngx_select_module;
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20
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21
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22 static ngx_int_t ngx_event_module_init(ngx_cycle_t *cycle);
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23 static ngx_int_t ngx_event_process_init(ngx_cycle_t *cycle);
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24 static char *ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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25
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26 static char *ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd,
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58
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27 void *conf);
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0
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28 static char *ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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29 static char *ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd,
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58
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30 void *conf);
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0
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31
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32 static void *ngx_event_create_conf(ngx_cycle_t *cycle);
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33 static char *ngx_event_init_conf(ngx_cycle_t *cycle, void *conf);
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34
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35
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112
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36 static ngx_uint_t ngx_timer_resolution;
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37 sig_atomic_t ngx_event_timer_alarm;
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38
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44
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39 static ngx_uint_t ngx_event_max_module;
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0
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40
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44
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41 ngx_uint_t ngx_event_flags;
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42 ngx_event_actions_t ngx_event_actions;
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0
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43
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44
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110
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45 ngx_atomic_t connection_counter = 1;
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42
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46 ngx_atomic_t *ngx_connection_counter = &connection_counter;
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0
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47
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48
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42
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49 ngx_atomic_t *ngx_accept_mutex_ptr;
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160
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50 ngx_shmtx_t ngx_accept_mutex;
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51 ngx_uint_t ngx_use_accept_mutex;
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44
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52 ngx_uint_t ngx_accept_mutex_held;
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53 ngx_msec_t ngx_accept_mutex_delay;
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54 ngx_int_t ngx_accept_disabled;
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110
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55 ngx_file_t ngx_accept_mutex_lock_file;
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0
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56
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57
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58 #if (NGX_STAT_STUB)
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59
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60 ngx_atomic_t ngx_stat_accepted0;
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61 ngx_atomic_t *ngx_stat_accepted = &ngx_stat_accepted0;
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44
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62 ngx_atomic_t ngx_stat_handled0;
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63 ngx_atomic_t *ngx_stat_handled = &ngx_stat_handled0;
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0
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64 ngx_atomic_t ngx_stat_requests0;
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65 ngx_atomic_t *ngx_stat_requests = &ngx_stat_requests0;
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66 ngx_atomic_t ngx_stat_active0;
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67 ngx_atomic_t *ngx_stat_active = &ngx_stat_active0;
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68 ngx_atomic_t ngx_stat_reading0;
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69 ngx_atomic_t *ngx_stat_reading = &ngx_stat_reading0;
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70 ngx_atomic_t ngx_stat_writing0;
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44
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71 ngx_atomic_t *ngx_stat_writing = &ngx_stat_writing0;
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0
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72
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73 #endif
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74
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75
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76
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77 static ngx_command_t ngx_events_commands[] = {
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78
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79 { ngx_string("events"),
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80 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
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81 ngx_events_block,
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82 0,
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83 0,
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84 NULL },
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85
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86 ngx_null_command
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87 };
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88
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126
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89
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0
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90 static ngx_core_module_t ngx_events_module_ctx = {
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91 ngx_string("events"),
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92 NULL,
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93 NULL
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126
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94 };
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0
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95
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96
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97 ngx_module_t ngx_events_module = {
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58
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98 NGX_MODULE_V1,
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0
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99 &ngx_events_module_ctx, /* module context */
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100 ngx_events_commands, /* module directives */
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101 NGX_CORE_MODULE, /* module type */
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90
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102 NULL, /* init master */
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0
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103 NULL, /* init module */
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90
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104 NULL, /* init process */
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105 NULL, /* init thread */
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106 NULL, /* exit thread */
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107 NULL, /* exit process */
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108 NULL, /* exit master */
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109 NGX_MODULE_V1_PADDING
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0
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110 };
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111
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112
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113 static ngx_str_t event_core_name = ngx_string("event_core");
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114
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115
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116 static ngx_command_t ngx_event_core_commands[] = {
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117
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92
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118 { ngx_string("worker_connections"),
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119 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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120 ngx_event_connections,
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121 0,
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122 0,
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123 NULL },
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124
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0
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125 { ngx_string("connections"),
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126 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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127 ngx_event_connections,
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128 0,
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129 0,
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130 NULL },
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131
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132 { ngx_string("use"),
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133 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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134 ngx_event_use,
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135 0,
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136 0,
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137 NULL },
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138
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139 { ngx_string("multi_accept"),
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140 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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141 ngx_conf_set_flag_slot,
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142 0,
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143 offsetof(ngx_event_conf_t, multi_accept),
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144 NULL },
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145
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146 { ngx_string("accept_mutex"),
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147 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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148 ngx_conf_set_flag_slot,
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149 0,
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150 offsetof(ngx_event_conf_t, accept_mutex),
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160
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151 NULL },
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0
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152
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153 { ngx_string("accept_mutex_delay"),
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154 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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155 ngx_conf_set_msec_slot,
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156 0,
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157 offsetof(ngx_event_conf_t, accept_mutex_delay),
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158 NULL },
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159
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160 { ngx_string("debug_connection"),
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161 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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162 ngx_event_debug_connection,
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163 0,
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164 0,
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165 NULL },
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166
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167 ngx_null_command
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168 };
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169
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170
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171 ngx_event_module_t ngx_event_core_module_ctx = {
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172 &event_core_name,
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173 ngx_event_create_conf, /* create configuration */
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174 ngx_event_init_conf, /* init configuration */
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175
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176 { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
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177 };
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178
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179
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180 ngx_module_t ngx_event_core_module = {
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58
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181 NGX_MODULE_V1,
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0
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182 &ngx_event_core_module_ctx, /* module context */
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183 ngx_event_core_commands, /* module directives */
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184 NGX_EVENT_MODULE, /* module type */
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90
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185 NULL, /* init master */
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0
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186 ngx_event_module_init, /* init module */
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90
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187 ngx_event_process_init, /* init process */
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188 NULL, /* init thread */
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189 NULL, /* exit thread */
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190 NULL, /* exit process */
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191 NULL, /* exit master */
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192 NGX_MODULE_V1_PADDING
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0
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193 };
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194
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195
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112
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196 void
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197 ngx_process_events_and_timers(ngx_cycle_t *cycle)
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198 {
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199 ngx_uint_t flags;
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116
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200 ngx_msec_t timer, delta;
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112
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201
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202 if (ngx_timer_resolution) {
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203 timer = NGX_TIMER_INFINITE;
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204 flags = 0;
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205
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206 } else {
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207 timer = ngx_event_find_timer();
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208 flags = NGX_UPDATE_TIME;
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209
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210 #if (NGX_THREADS)
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211
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212 if (timer == NGX_TIMER_INFINITE || timer > 500) {
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213 timer = 500;
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214 }
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215
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216 #endif
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217 }
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218
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160
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219 if (ngx_use_accept_mutex) {
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112
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220 if (ngx_accept_disabled > 0) {
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221 ngx_accept_disabled--;
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222
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223 } else {
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224 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
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225 return;
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226 }
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227
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228 if (ngx_accept_mutex_held) {
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229 flags |= NGX_POST_EVENTS;
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230
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231 } else {
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232 if (timer == NGX_TIMER_INFINITE
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233 || timer > ngx_accept_mutex_delay)
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234 {
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235 timer = ngx_accept_mutex_delay;
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236 }
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237 }
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238 }
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239 }
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240
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116
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241 delta = ngx_current_msec;
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242
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112
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243 (void) ngx_process_events(cycle, timer, flags);
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244
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116
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245 delta = ngx_current_msec - delta;
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246
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247 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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248 "timer delta: %M", delta);
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249
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112
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250 if (ngx_posted_accept_events) {
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251 ngx_event_process_posted(cycle, &ngx_posted_accept_events);
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252 }
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253
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254 if (ngx_accept_mutex_held) {
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160
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255 ngx_shmtx_unlock(&ngx_accept_mutex);
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112
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256 }
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257
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122
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258 if (delta) {
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259 ngx_event_expire_timers();
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260 }
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261
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112
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262 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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263 "posted events %p", ngx_posted_events);
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264
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265 if (ngx_posted_events) {
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266 if (ngx_threaded) {
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267 ngx_wakeup_worker_thread(cycle);
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268
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269 } else {
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270 ngx_event_process_posted(cycle, &ngx_posted_events);
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271 }
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272 }
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273 }
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274
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275
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58
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276 ngx_int_t
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277 ngx_handle_read_event(ngx_event_t *rev, u_int flags)
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278 {
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279 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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126
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280
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58
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281 /* kqueue, epoll */
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282
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283 if (!rev->active && !rev->ready) {
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284 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT)
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285 == NGX_ERROR)
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286 {
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287 return NGX_ERROR;
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288 }
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289 }
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126
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290
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58
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291 return NGX_OK;
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292
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293 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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294
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295 /* select, poll, /dev/poll */
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296
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297 if (!rev->active && !rev->ready) {
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298 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT)
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299 == NGX_ERROR)
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300 {
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301 return NGX_ERROR;
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302 }
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303
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304 return NGX_OK;
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305 }
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306
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307 if (rev->active && (rev->ready || (flags & NGX_CLOSE_EVENT))) {
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308 if (ngx_del_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT | flags)
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309 == NGX_ERROR)
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310 {
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311 return NGX_ERROR;
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312 }
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313
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314 return NGX_OK;
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315 }
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316
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317 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
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318
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319 /* event ports */
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320
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321 if (!rev->active) {
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322 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_ONESHOT_EVENT)
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323 == NGX_ERROR)
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324 {
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325 return NGX_ERROR;
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326 }
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327 }
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126
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328
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58
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329 return NGX_OK;
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330 }
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331
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332 /* aio, iocp, rtsig */
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333
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334 return NGX_OK;
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335 }
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336
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337
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338 ngx_int_t
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339 ngx_handle_write_event(ngx_event_t *wev, size_t lowat)
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340 {
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341 ngx_connection_t *c;
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342
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343 if (lowat) {
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344 c = (ngx_connection_t *) wev->data;
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345
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346 if (ngx_send_lowat(c, lowat) == NGX_ERROR) {
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347 return NGX_ERROR;
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348 }
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349 }
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350
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351 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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352
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353 /* kqueue, epoll */
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354
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355 if (!wev->active && !wev->ready) {
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356 if (ngx_add_event(wev, NGX_WRITE_EVENT,
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357 NGX_CLEAR_EVENT | (lowat ? NGX_LOWAT_EVENT : 0))
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358 == NGX_ERROR)
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359 {
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360 return NGX_ERROR;
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361 }
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362 }
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363
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364 return NGX_OK;
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365
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366 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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367
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368 /* select, poll, /dev/poll */
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369
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370 if (!wev->active && !wev->ready) {
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371 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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372 == NGX_ERROR)
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373 {
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374 return NGX_ERROR;
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375 }
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376
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377 return NGX_OK;
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378 }
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379
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380 if (wev->active && wev->ready) {
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381 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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382 == NGX_ERROR)
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383 {
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384 return NGX_ERROR;
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385 }
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386
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387 return NGX_OK;
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388 }
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389
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390 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
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391
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392 /* event ports */
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393
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394 if (!wev->active) {
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395 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT)
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396 == NGX_ERROR)
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397 {
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398 return NGX_ERROR;
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399 }
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400 }
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126
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401
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58
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402 return NGX_OK;
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403 }
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404
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405 /* aio, iocp, rtsig */
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406
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407 return NGX_OK;
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408 }
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409
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410
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411 static ngx_int_t
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412 ngx_event_module_init(ngx_cycle_t *cycle)
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0
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413 {
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92
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414 void ***cf;
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154
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415 u_char *shared;
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160
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416 size_t size, cl;
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92
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417 ngx_event_conf_t *ecf;
|
|
112
|
418 ngx_core_conf_t *ccf;
|
|
154
|
419 ngx_shm_t shm;
|
|
10
|
420 #if !(NGX_WIN32)
|
|
92
|
421 ngx_int_t limit;
|
|
|
422 struct rlimit rlmt;
|
|
|
423 #endif
|
|
22
|
424
|
|
|
425 cf = ngx_get_conf(cycle->conf_ctx, ngx_events_module);
|
|
|
426
|
|
|
427 if (cf == NULL) {
|
|
|
428 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
429 "no \"events\" section in configuration");
|
|
|
430 return NGX_ERROR;
|
|
|
431 }
|
|
|
432
|
|
|
433 ecf = (*cf)[ngx_event_core_module.ctx_index];
|
|
|
434
|
|
190
|
435 if (!ngx_test_config) {
|
|
|
436 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
437 "using the \"%s\" event method", ecf->name);
|
|
|
438 }
|
|
22
|
439
|
|
112
|
440 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
441
|
|
112
|
442 ngx_timer_resolution = ccf->timer_resolution;
|
|
|
443
|
|
|
444 #if !(NGX_WIN32)
|
|
0
|
445
|
|
92
|
446 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
447 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
448 "getrlimit(RLIMIT_NOFILE) failed, ignored");
|
|
|
449
|
|
|
450 } else {
|
|
|
451 if (ecf->connections > (ngx_uint_t) rlmt.rlim_cur
|
|
|
452 && (ccf->rlimit_nofile == NGX_CONF_UNSET
|
|
|
453 || ecf->connections > (ngx_uint_t) ccf->rlimit_nofile))
|
|
|
454 {
|
|
|
455 limit = (ccf->rlimit_nofile == NGX_CONF_UNSET) ?
|
|
|
456 (ngx_int_t) rlmt.rlim_cur : ccf->rlimit_nofile;
|
|
|
457
|
|
|
458 ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
459 "%ui worker_connections are more than "
|
|
|
460 "open file resource limit: %i",
|
|
|
461 ecf->connections, limit);
|
|
|
462 }
|
|
|
463 }
|
|
|
464
|
|
154
|
465 #endif /* !(NGX_WIN32) */
|
|
|
466
|
|
92
|
467
|
|
160
|
468 if (ccf->master == 0) {
|
|
0
|
469 return NGX_OK;
|
|
|
470 }
|
|
|
471
|
|
|
472
|
|
160
|
473 if (ngx_accept_mutex_ptr) {
|
|
|
474
|
|
|
475 /* reinit ngx_accept_mutex */
|
|
|
476
|
|
|
477 if (ngx_shmtx_create(&ngx_accept_mutex, (void *) ngx_accept_mutex_ptr,
|
|
|
478 ccf->lock_file.data, cycle->log)
|
|
|
479 != NGX_OK)
|
|
|
480 {
|
|
|
481 return NGX_ERROR;
|
|
|
482 }
|
|
0
|
483
|
|
160
|
484 return NGX_OK;
|
|
|
485 }
|
|
|
486
|
|
|
487
|
|
|
488 /* cl should be equal or bigger than cache line size */
|
|
|
489
|
|
|
490 cl = 128;
|
|
|
491
|
|
|
492 size = cl /* ngx_accept_mutex */
|
|
|
493 + cl; /* ngx_connection_counter */
|
|
0
|
494
|
|
|
495 #if (NGX_STAT_STUB)
|
|
|
496
|
|
160
|
497 size += cl /* ngx_stat_accepted */
|
|
|
498 + cl /* ngx_stat_handled */
|
|
|
499 + cl /* ngx_stat_requests */
|
|
|
500 + cl /* ngx_stat_active */
|
|
|
501 + cl /* ngx_stat_reading */
|
|
|
502 + cl; /* ngx_stat_writing */
|
|
0
|
503
|
|
|
504 #endif
|
|
|
505
|
|
154
|
506 shm.size = size;
|
|
|
507 shm.log = cycle->log;
|
|
|
508
|
|
|
509 if (ngx_shm_alloc(&shm) != NGX_OK) {
|
|
0
|
510 return NGX_ERROR;
|
|
|
511 }
|
|
|
512
|
|
154
|
513 shared = shm.addr;
|
|
|
514
|
|
0
|
515 ngx_accept_mutex_ptr = (ngx_atomic_t *) shared;
|
|
160
|
516
|
|
|
517 if (ngx_shmtx_create(&ngx_accept_mutex, shared, ccf->lock_file.data,
|
|
|
518 cycle->log)
|
|
|
519 != NGX_OK)
|
|
|
520 {
|
|
|
521 return NGX_ERROR;
|
|
|
522 }
|
|
|
523
|
|
|
524 ngx_connection_counter = (ngx_atomic_t *) (shared + 1 * cl);
|
|
0
|
525
|
|
|
526 #if (NGX_STAT_STUB)
|
|
|
527
|
|
160
|
528 ngx_stat_accepted = (ngx_atomic_t *) (shared + 2 * cl);
|
|
|
529 ngx_stat_handled = (ngx_atomic_t *) (shared + 3 * cl);
|
|
|
530 ngx_stat_requests = (ngx_atomic_t *) (shared + 4 * cl);
|
|
|
531 ngx_stat_active = (ngx_atomic_t *) (shared + 5 * cl);
|
|
|
532 ngx_stat_reading = (ngx_atomic_t *) (shared + 6 * cl);
|
|
|
533 ngx_stat_writing = (ngx_atomic_t *) (shared + 7 * cl);
|
|
0
|
534
|
|
|
535 #endif
|
|
|
536
|
|
112
|
537 *ngx_connection_counter = 1;
|
|
|
538
|
|
0
|
539 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
540 "counter: %p, %d",
|
|
0
|
541 ngx_connection_counter, *ngx_connection_counter);
|
|
|
542
|
|
|
543 return NGX_OK;
|
|
|
544 }
|
|
|
545
|
|
|
546
|
|
112
|
547 #if !(NGX_WIN32)
|
|
|
548
|
|
|
549 void
|
|
|
550 ngx_timer_signal_handler(int signo)
|
|
|
551 {
|
|
|
552 ngx_event_timer_alarm = 1;
|
|
|
553
|
|
|
554 ngx_time_update(0, 0);
|
|
|
555
|
|
|
556 #if 1
|
|
|
557 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "timer signal");
|
|
|
558 #endif
|
|
|
559 }
|
|
|
560
|
|
|
561 #endif
|
|
|
562
|
|
|
563
|
|
58
|
564 static ngx_int_t
|
|
|
565 ngx_event_process_init(ngx_cycle_t *cycle)
|
|
0
|
566 {
|
|
|
567 ngx_uint_t m, i;
|
|
|
568 ngx_event_t *rev, *wev;
|
|
92
|
569 ngx_listening_t *ls;
|
|
|
570 ngx_connection_t *c, *next, *old;
|
|
0
|
571 ngx_core_conf_t *ccf;
|
|
|
572 ngx_event_conf_t *ecf;
|
|
|
573 ngx_event_module_t *module;
|
|
10
|
574 #if (NGX_WIN32)
|
|
0
|
575 ngx_iocp_conf_t *iocpcf;
|
|
92
|
576 #else
|
|
|
577 struct rlimit rlmt;
|
|
112
|
578 struct sigaction sa;
|
|
|
579 struct itimerval itv;
|
|
0
|
580 #endif
|
|
|
581
|
|
|
582 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
583 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module);
|
|
|
584
|
|
160
|
585 if (ccf->worker_processes > 1 && ecf->accept_mutex) {
|
|
|
586 ngx_use_accept_mutex = 1;
|
|
0
|
587 ngx_accept_mutex_held = 0;
|
|
|
588 ngx_accept_mutex_delay = ecf->accept_mutex_delay;
|
|
160
|
589
|
|
|
590 } else {
|
|
|
591 ngx_use_accept_mutex = 0;
|
|
0
|
592 }
|
|
|
593
|
|
|
594 #if (NGX_THREADS)
|
|
50
|
595 ngx_posted_events_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
596 if (ngx_posted_events_mutex == NULL) {
|
|
0
|
597 return NGX_ERROR;
|
|
|
598 }
|
|
|
599 #endif
|
|
|
600
|
|
|
601 if (ngx_event_timer_init(cycle->log) == NGX_ERROR) {
|
|
|
602 return NGX_ERROR;
|
|
|
603 }
|
|
|
604
|
|
|
605 cycle->connection_n = ecf->connections;
|
|
|
606
|
|
|
607 for (m = 0; ngx_modules[m]; m++) {
|
|
|
608 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
609 continue;
|
|
|
610 }
|
|
|
611
|
|
|
612 if (ngx_modules[m]->ctx_index == ecf->use) {
|
|
|
613 module = ngx_modules[m]->ctx;
|
|
112
|
614 if (module->actions.init(cycle, ngx_timer_resolution) == NGX_ERROR)
|
|
|
615 {
|
|
0
|
616 /* fatal */
|
|
|
617 exit(2);
|
|
|
618 }
|
|
|
619 break;
|
|
|
620 }
|
|
|
621 }
|
|
|
622
|
|
92
|
623 #if !(NGX_WIN32)
|
|
|
624
|
|
112
|
625 if (ngx_timer_resolution && !(ngx_event_flags & NGX_USE_TIMER_EVENT)) {
|
|
|
626
|
|
|
627 ngx_memzero(&sa, sizeof(struct sigaction));
|
|
|
628 sa.sa_handler = ngx_timer_signal_handler;
|
|
|
629 sigemptyset(&sa.sa_mask);
|
|
|
630
|
|
|
631 if (sigaction(SIGALRM, &sa, NULL) == -1) {
|
|
|
632 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
633 "sigaction(SIGALRM) failed");
|
|
|
634 return NGX_ERROR;
|
|
|
635 }
|
|
|
636
|
|
|
637 itv.it_interval.tv_sec = ngx_timer_resolution / 1000;
|
|
|
638 itv.it_interval.tv_usec = (ngx_timer_resolution % 1000) * 1000;
|
|
|
639 itv.it_value.tv_sec = ngx_timer_resolution / 1000;
|
|
|
640 itv.it_value.tv_usec = (ngx_timer_resolution % 1000 ) * 1000;
|
|
|
641
|
|
|
642 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
643 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
644 "setitimer() failed");
|
|
126
|
645 }
|
|
112
|
646 }
|
|
|
647
|
|
92
|
648 if (ngx_event_flags & NGX_USE_FD_EVENT) {
|
|
|
649
|
|
|
650 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
651 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
652 "getrlimit(RLIMIT_NOFILE) failed");
|
|
|
653 return NGX_ERROR;
|
|
|
654 }
|
|
|
655
|
|
|
656 cycle->files_n = (ngx_uint_t) rlmt.rlim_cur;
|
|
|
657
|
|
|
658 cycle->files = ngx_calloc(sizeof(ngx_connection_t *) * cycle->files_n,
|
|
|
659 cycle->log);
|
|
|
660 if (cycle->files == NULL) {
|
|
|
661 return NGX_ERROR;
|
|
|
662 }
|
|
|
663 }
|
|
|
664
|
|
|
665 #endif
|
|
|
666
|
|
110
|
667 cycle->connections = ngx_alloc(sizeof(ngx_connection_t) * ecf->connections,
|
|
0
|
668 cycle->log);
|
|
110
|
669 if (cycle->connections == NULL) {
|
|
0
|
670 return NGX_ERROR;
|
|
|
671 }
|
|
|
672
|
|
110
|
673 c = cycle->connections;
|
|
0
|
674
|
|
110
|
675 cycle->read_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
0
|
676 cycle->log);
|
|
110
|
677 if (cycle->read_events == NULL) {
|
|
0
|
678 return NGX_ERROR;
|
|
|
679 }
|
|
|
680
|
|
110
|
681 rev = cycle->read_events;
|
|
0
|
682 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
683 rev[i].closed = 1;
|
|
30
|
684 rev[i].instance = 1;
|
|
0
|
685 #if (NGX_THREADS)
|
|
|
686 rev[i].lock = &c[i].lock;
|
|
|
687 rev[i].own_lock = &c[i].lock;
|
|
|
688 #endif
|
|
|
689 }
|
|
|
690
|
|
110
|
691 cycle->write_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
30
|
692 cycle->log);
|
|
110
|
693 if (cycle->write_events == NULL) {
|
|
0
|
694 return NGX_ERROR;
|
|
|
695 }
|
|
|
696
|
|
110
|
697 wev = cycle->write_events;
|
|
0
|
698 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
699 wev[i].closed = 1;
|
|
|
700 #if (NGX_THREADS)
|
|
|
701 wev[i].lock = &c[i].lock;
|
|
|
702 wev[i].own_lock = &c[i].lock;
|
|
|
703 #endif
|
|
|
704 }
|
|
|
705
|
|
92
|
706 i = cycle->connection_n;
|
|
|
707 next = NULL;
|
|
|
708
|
|
|
709 do {
|
|
|
710 i--;
|
|
|
711
|
|
|
712 c[i].data = next;
|
|
110
|
713 c[i].read = &cycle->read_events[i];
|
|
|
714 c[i].write = &cycle->write_events[i];
|
|
92
|
715 c[i].fd = (ngx_socket_t) -1;
|
|
|
716
|
|
|
717 next = &c[i];
|
|
|
718
|
|
|
719 #if (NGX_THREADS)
|
|
|
720 c[i].lock = 0;
|
|
|
721 #endif
|
|
|
722 } while (i);
|
|
|
723
|
|
|
724 cycle->free_connections = next;
|
|
|
725 cycle->free_connection_n = ecf->connections;
|
|
|
726
|
|
0
|
727 /* for each listening socket */
|
|
|
728
|
|
92
|
729 ls = cycle->listening.elts;
|
|
0
|
730 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
731
|
|
92
|
732 c = ngx_get_connection(ls[i].fd, cycle->log);
|
|
0
|
733
|
|
92
|
734 if (c == NULL) {
|
|
|
735 return NGX_ERROR;
|
|
|
736 }
|
|
0
|
737
|
|
92
|
738 c->log = &ls[i].log;
|
|
|
739
|
|
|
740 c->listening = &ls[i];
|
|
|
741 ls[i].connection = c;
|
|
|
742
|
|
110
|
743 rev = c->read;
|
|
0
|
744
|
|
|
745 rev->log = c->log;
|
|
|
746 rev->accept = 1;
|
|
|
747
|
|
18
|
748 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
92
|
749 rev->deferred_accept = ls[i].deferred_accept;
|
|
0
|
750 #endif
|
|
|
751
|
|
|
752 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) {
|
|
92
|
753 if (ls[i].previous) {
|
|
0
|
754
|
|
|
755 /*
|
|
|
756 * delete the old accept events that were bound to
|
|
|
757 * the old cycle read events array
|
|
|
758 */
|
|
|
759
|
|
92
|
760 old = ls[i].previous->connection;
|
|
|
761
|
|
|
762 if (ngx_del_event(old->read, NGX_READ_EVENT, NGX_CLOSE_EVENT)
|
|
|
763 == NGX_ERROR)
|
|
0
|
764 {
|
|
|
765 return NGX_ERROR;
|
|
|
766 }
|
|
|
767
|
|
92
|
768 old->fd = (ngx_socket_t) -1;
|
|
0
|
769 }
|
|
|
770 }
|
|
|
771
|
|
10
|
772 #if (NGX_WIN32)
|
|
0
|
773
|
|
|
774 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
58
|
775 rev->handler = ngx_event_acceptex;
|
|
0
|
776
|
|
|
777 if (ngx_add_event(rev, 0, NGX_IOCP_ACCEPT) == NGX_ERROR) {
|
|
|
778 return NGX_ERROR;
|
|
|
779 }
|
|
|
780
|
|
92
|
781 ls[i].log.handler = ngx_acceptex_log_error;
|
|
|
782
|
|
0
|
783 iocpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_iocp_module);
|
|
92
|
784 if (ngx_event_post_acceptex(&ls[i], iocpcf->post_acceptex)
|
|
|
785 == NGX_ERROR)
|
|
0
|
786 {
|
|
|
787 return NGX_ERROR;
|
|
|
788 }
|
|
|
789
|
|
|
790 } else {
|
|
58
|
791 rev->handler = ngx_event_accept;
|
|
10
|
792
|
|
0
|
793 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
794 return NGX_ERROR;
|
|
|
795 }
|
|
|
796 }
|
|
|
797
|
|
|
798 #else
|
|
|
799
|
|
58
|
800 rev->handler = ngx_event_accept;
|
|
0
|
801
|
|
160
|
802 if (ngx_use_accept_mutex) {
|
|
0
|
803 continue;
|
|
|
804 }
|
|
|
805
|
|
|
806 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
807 if (ngx_add_conn(c) == NGX_ERROR) {
|
|
|
808 return NGX_ERROR;
|
|
|
809 }
|
|
|
810
|
|
|
811 } else {
|
|
|
812 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
813 return NGX_ERROR;
|
|
|
814 }
|
|
|
815 }
|
|
|
816
|
|
|
817 #endif
|
|
92
|
818
|
|
0
|
819 }
|
|
|
820
|
|
|
821 return NGX_OK;
|
|
|
822 }
|
|
|
823
|
|
|
824
|
|
58
|
825 ngx_int_t
|
|
|
826 ngx_send_lowat(ngx_connection_t *c, size_t lowat)
|
|
2
|
827 {
|
|
|
828 int sndlowat;
|
|
|
829
|
|
4
|
830 #if (NGX_HAVE_LOWAT_EVENT)
|
|
2
|
831
|
|
4
|
832 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
2
|
833 c->write->available = lowat;
|
|
|
834 return NGX_OK;
|
|
|
835 }
|
|
|
836
|
|
|
837 #endif
|
|
126
|
838
|
|
2
|
839 if (lowat == 0 || c->sndlowat) {
|
|
|
840 return NGX_OK;
|
|
|
841 }
|
|
|
842
|
|
|
843 sndlowat = (int) lowat;
|
|
|
844
|
|
|
845 if (setsockopt(c->fd, SOL_SOCKET, SO_SNDLOWAT,
|
|
|
846 (const void *) &sndlowat, sizeof(int)) == -1)
|
|
|
847 {
|
|
|
848 ngx_connection_error(c, ngx_socket_errno,
|
|
|
849 "setsockopt(SO_SNDLOWAT) failed");
|
|
|
850 return NGX_ERROR;
|
|
|
851 }
|
|
|
852
|
|
|
853 c->sndlowat = 1;
|
|
|
854
|
|
|
855 return NGX_OK;
|
|
|
856 }
|
|
|
857
|
|
|
858
|
|
58
|
859 static char *
|
|
|
860 ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
861 {
|
|
50
|
862 char *rv;
|
|
0
|
863 void ***ctx;
|
|
50
|
864 ngx_uint_t i;
|
|
0
|
865 ngx_conf_t pcf;
|
|
50
|
866 ngx_event_module_t *m;
|
|
0
|
867
|
|
|
868 /* count the number of the event modules and set up their indices */
|
|
|
869
|
|
|
870 ngx_event_max_module = 0;
|
|
50
|
871 for (i = 0; ngx_modules[i]; i++) {
|
|
|
872 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
873 continue;
|
|
|
874 }
|
|
|
875
|
|
50
|
876 ngx_modules[i]->ctx_index = ngx_event_max_module++;
|
|
0
|
877 }
|
|
|
878
|
|
50
|
879 ctx = ngx_pcalloc(cf->pool, sizeof(void *));
|
|
|
880 if (ctx == NULL) {
|
|
|
881 return NGX_CONF_ERROR;
|
|
|
882 }
|
|
0
|
883
|
|
50
|
884 *ctx = ngx_pcalloc(cf->pool, ngx_event_max_module * sizeof(void *));
|
|
|
885 if (*ctx == NULL) {
|
|
|
886 return NGX_CONF_ERROR;
|
|
|
887 }
|
|
0
|
888
|
|
|
889 *(void **) conf = ctx;
|
|
|
890
|
|
50
|
891 for (i = 0; ngx_modules[i]; i++) {
|
|
|
892 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
893 continue;
|
|
|
894 }
|
|
|
895
|
|
50
|
896 m = ngx_modules[i]->ctx;
|
|
0
|
897
|
|
50
|
898 if (m->create_conf) {
|
|
|
899 (*ctx)[ngx_modules[i]->ctx_index] = m->create_conf(cf->cycle);
|
|
|
900 if ((*ctx)[ngx_modules[i]->ctx_index] == NULL) {
|
|
|
901 return NGX_CONF_ERROR;
|
|
|
902 }
|
|
0
|
903 }
|
|
|
904 }
|
|
|
905
|
|
|
906 pcf = *cf;
|
|
|
907 cf->ctx = ctx;
|
|
|
908 cf->module_type = NGX_EVENT_MODULE;
|
|
|
909 cf->cmd_type = NGX_EVENT_CONF;
|
|
50
|
910
|
|
0
|
911 rv = ngx_conf_parse(cf, NULL);
|
|
50
|
912
|
|
0
|
913 *cf = pcf;
|
|
|
914
|
|
|
915 if (rv != NGX_CONF_OK)
|
|
|
916 return rv;
|
|
|
917
|
|
50
|
918 for (i = 0; ngx_modules[i]; i++) {
|
|
|
919 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
920 continue;
|
|
|
921 }
|
|
|
922
|
|
50
|
923 m = ngx_modules[i]->ctx;
|
|
0
|
924
|
|
50
|
925 if (m->init_conf) {
|
|
|
926 rv = m->init_conf(cf->cycle, (*ctx)[ngx_modules[i]->ctx_index]);
|
|
0
|
927 if (rv != NGX_CONF_OK) {
|
|
|
928 return rv;
|
|
|
929 }
|
|
|
930 }
|
|
|
931 }
|
|
|
932
|
|
|
933 return NGX_CONF_OK;
|
|
|
934 }
|
|
|
935
|
|
|
936
|
|
58
|
937 static char *
|
|
|
938 ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
939 {
|
|
|
940 ngx_event_conf_t *ecf = conf;
|
|
|
941
|
|
|
942 ngx_str_t *value;
|
|
|
943
|
|
|
944 if (ecf->connections != NGX_CONF_UNSET_UINT) {
|
|
|
945 return "is duplicate" ;
|
|
|
946 }
|
|
|
947
|
|
130
|
948 if (ngx_strcmp(cmd->name.data, "connections") == 0) {
|
|
|
949 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
950 "the \"connections\" directive is deprecated, "
|
|
|
951 "use the \"worker_connections\" directive instead");
|
|
|
952 }
|
|
|
953
|
|
0
|
954 value = cf->args->elts;
|
|
|
955 ecf->connections = ngx_atoi(value[1].data, value[1].len);
|
|
|
956 if (ecf->connections == (ngx_uint_t) NGX_ERROR) {
|
|
|
957 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
958 "invalid number \"%V\"", &value[1]);
|
|
0
|
959
|
|
|
960 return NGX_CONF_ERROR;
|
|
|
961 }
|
|
|
962
|
|
|
963 cf->cycle->connection_n = ecf->connections;
|
|
|
964
|
|
|
965 return NGX_CONF_OK;
|
|
|
966 }
|
|
|
967
|
|
|
968
|
|
58
|
969 static char *
|
|
|
970 ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
971 {
|
|
|
972 ngx_event_conf_t *ecf = conf;
|
|
|
973
|
|
|
974 ngx_int_t m;
|
|
|
975 ngx_str_t *value;
|
|
|
976 ngx_event_conf_t *old_ecf;
|
|
|
977 ngx_event_module_t *module;
|
|
|
978
|
|
|
979 if (ecf->use != NGX_CONF_UNSET_UINT) {
|
|
|
980 return "is duplicate" ;
|
|
|
981 }
|
|
|
982
|
|
|
983 value = cf->args->elts;
|
|
|
984
|
|
|
985 if (cf->cycle->old_cycle->conf_ctx) {
|
|
|
986 old_ecf = ngx_event_get_conf(cf->cycle->old_cycle->conf_ctx,
|
|
|
987 ngx_event_core_module);
|
|
|
988 } else {
|
|
|
989 old_ecf = NULL;
|
|
|
990 }
|
|
|
991
|
|
|
992
|
|
|
993 for (m = 0; ngx_modules[m]; m++) {
|
|
|
994 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
995 continue;
|
|
|
996 }
|
|
|
997
|
|
|
998 module = ngx_modules[m]->ctx;
|
|
|
999 if (module->name->len == value[1].len) {
|
|
|
1000 if (ngx_strcmp(module->name->data, value[1].data) == 0) {
|
|
|
1001 ecf->use = ngx_modules[m]->ctx_index;
|
|
|
1002 ecf->name = module->name->data;
|
|
|
1003
|
|
|
1004 if (ngx_process == NGX_PROCESS_SINGLE
|
|
|
1005 && old_ecf
|
|
|
1006 && old_ecf->use != ecf->use)
|
|
|
1007 {
|
|
|
1008 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
16
|
1009 "when the server runs without a master process "
|
|
|
1010 "the \"%V\" event type must be the same as "
|
|
|
1011 "in previous configuration - \"%s\" "
|
|
|
1012 "and it can not be changed on the fly, "
|
|
|
1013 "to change it you need to stop server "
|
|
|
1014 "and start it again",
|
|
|
1015 &value[1], old_ecf->name);
|
|
0
|
1016
|
|
|
1017 return NGX_CONF_ERROR;
|
|
|
1018 }
|
|
|
1019
|
|
|
1020 return NGX_CONF_OK;
|
|
|
1021 }
|
|
|
1022 }
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1026 "invalid event type \"%V\"", &value[1]);
|
|
0
|
1027
|
|
|
1028 return NGX_CONF_ERROR;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031
|
|
58
|
1032 static char *
|
|
|
1033 ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
1034 {
|
|
|
1035 #if (NGX_DEBUG)
|
|
|
1036 ngx_event_conf_t *ecf = conf;
|
|
|
1037
|
|
|
1038 in_addr_t *addr;
|
|
|
1039 ngx_str_t *value;
|
|
|
1040 struct hostent *h;
|
|
|
1041
|
|
|
1042 value = cf->args->elts;
|
|
|
1043
|
|
|
1044 /* AF_INET only */
|
|
|
1045
|
|
50
|
1046 addr = ngx_array_push(&ecf->debug_connection);
|
|
|
1047 if (addr == NULL) {
|
|
0
|
1048 return NGX_CONF_ERROR;
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 *addr = inet_addr((char *) value[1].data);
|
|
|
1052
|
|
|
1053 if (*addr != INADDR_NONE) {
|
|
|
1054 return NGX_OK;
|
|
|
1055 }
|
|
|
1056
|
|
|
1057 h = gethostbyname((char *) value[1].data);
|
|
|
1058
|
|
|
1059 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
|
1060 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1061 "host \"%s\" not found", value[1].data);
|
|
0
|
1062 return NGX_CONF_ERROR;
|
|
|
1063 }
|
|
|
1064
|
|
|
1065 *addr = *(in_addr_t *)(h->h_addr_list[0]);
|
|
|
1066
|
|
|
1067 #else
|
|
|
1068
|
|
|
1069 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1070 "\"debug_connection\" is ignored, you need to rebuild "
|
|
|
1071 "nginx using --with-debug option to enable it");
|
|
|
1072
|
|
|
1073 #endif
|
|
|
1074
|
|
|
1075 return NGX_OK;
|
|
|
1076 }
|
|
|
1077
|
|
|
1078
|
|
58
|
1079 static void *
|
|
|
1080 ngx_event_create_conf(ngx_cycle_t *cycle)
|
|
0
|
1081 {
|
|
|
1082 ngx_event_conf_t *ecf;
|
|
|
1083
|
|
50
|
1084 ecf = ngx_palloc(cycle->pool, sizeof(ngx_event_conf_t));
|
|
|
1085 if (ecf == NULL) {
|
|
|
1086 return NGX_CONF_ERROR;
|
|
|
1087 }
|
|
0
|
1088
|
|
|
1089 ecf->connections = NGX_CONF_UNSET_UINT;
|
|
|
1090 ecf->use = NGX_CONF_UNSET_UINT;
|
|
|
1091 ecf->multi_accept = NGX_CONF_UNSET;
|
|
|
1092 ecf->accept_mutex = NGX_CONF_UNSET;
|
|
|
1093 ecf->accept_mutex_delay = NGX_CONF_UNSET_MSEC;
|
|
|
1094 ecf->name = (void *) NGX_CONF_UNSET;
|
|
|
1095
|
|
|
1096 #if (NGX_DEBUG)
|
|
50
|
1097
|
|
|
1098 if (ngx_array_init(&ecf->debug_connection, cycle->pool, 4,
|
|
|
1099 sizeof(in_addr_t)) == NGX_ERROR)
|
|
|
1100 {
|
|
|
1101 return NGX_CONF_ERROR;
|
|
|
1102 }
|
|
|
1103
|
|
0
|
1104 #endif
|
|
|
1105
|
|
|
1106 return ecf;
|
|
|
1107 }
|
|
|
1108
|
|
|
1109
|
|
58
|
1110 static char *
|
|
|
1111 ngx_event_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
1112 {
|
|
|
1113 ngx_event_conf_t *ecf = conf;
|
|
16
|
1114
|
|
50
|
1115 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
|
1116 int fd;
|
|
|
1117 #endif
|
|
|
1118 #if (NGX_HAVE_RTSIG)
|
|
|
1119 ngx_uint_t rtsig;
|
|
122
|
1120 ngx_core_conf_t *ccf;
|
|
50
|
1121 #endif
|
|
16
|
1122 ngx_int_t i, connections;
|
|
|
1123 ngx_module_t *module;
|
|
|
1124 ngx_event_module_t *event_module;
|
|
|
1125
|
|
|
1126 connections = NGX_CONF_UNSET_UINT;
|
|
|
1127 module = NULL;
|
|
|
1128
|
|
18
|
1129 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
16
|
1130
|
|
|
1131 fd = epoll_create(100);
|
|
|
1132
|
|
|
1133 if (fd != -1) {
|
|
|
1134 close(fd);
|
|
|
1135 connections = DEFAULT_CONNECTIONS;
|
|
|
1136 module = &ngx_epoll_module;
|
|
|
1137
|
|
|
1138 } else if (ngx_errno != NGX_ENOSYS) {
|
|
|
1139 connections = DEFAULT_CONNECTIONS;
|
|
|
1140 module = &ngx_epoll_module;
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 #endif
|
|
|
1144
|
|
18
|
1145 #if (NGX_HAVE_RTSIG)
|
|
16
|
1146
|
|
|
1147 if (module == NULL) {
|
|
|
1148 connections = DEFAULT_CONNECTIONS;
|
|
|
1149 module = &ngx_rtsig_module;
|
|
|
1150 rtsig = 1;
|
|
50
|
1151
|
|
|
1152 } else {
|
|
|
1153 rtsig = 0;
|
|
16
|
1154 }
|
|
|
1155
|
|
|
1156 #endif
|
|
|
1157
|
|
18
|
1158 #if (NGX_HAVE_DEVPOLL)
|
|
16
|
1159
|
|
|
1160 connections = DEFAULT_CONNECTIONS;
|
|
|
1161 module = &ngx_devpoll_module;
|
|
|
1162
|
|
0
|
1163 #endif
|
|
|
1164
|
|
18
|
1165 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1166
|
|
16
|
1167 connections = DEFAULT_CONNECTIONS;
|
|
|
1168 module = &ngx_kqueue_module;
|
|
0
|
1169
|
|
16
|
1170 #endif
|
|
0
|
1171
|
|
18
|
1172 #if (NGX_HAVE_SELECT)
|
|
0
|
1173
|
|
16
|
1174 if (module == NULL) {
|
|
0
|
1175
|
|
50
|
1176 #if (NGX_WIN32 || FD_SETSIZE >= DEFAULT_CONNECTIONS)
|
|
16
|
1177 connections = DEFAULT_CONNECTIONS;
|
|
0
|
1178 #else
|
|
50
|
1179 connections = FD_SETSIZE;
|
|
16
|
1180 #endif
|
|
|
1181 module = &ngx_select_module;
|
|
|
1182 }
|
|
|
1183
|
|
0
|
1184 #endif
|
|
|
1185
|
|
16
|
1186 if (module == NULL) {
|
|
|
1187 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1188 if (ngx_modules[i]->type == NGX_EVENT_MODULE) {
|
|
|
1189 event_module = ngx_modules[i]->ctx;
|
|
0
|
1190
|
|
16
|
1191 if (ngx_strcmp(event_module->name->data, event_core_name.data)
|
|
|
1192 == 0)
|
|
|
1193 {
|
|
|
1194 continue;
|
|
|
1195 }
|
|
0
|
1196
|
|
16
|
1197 module = ngx_modules[i];
|
|
|
1198 break;
|
|
0
|
1199 }
|
|
|
1200 }
|
|
|
1201 }
|
|
|
1202
|
|
16
|
1203 if (module == NULL) {
|
|
0
|
1204 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
|
|
|
1205 return NGX_CONF_ERROR;
|
|
|
1206 }
|
|
|
1207
|
|
16
|
1208 ngx_conf_init_unsigned_value(ecf->connections, connections);
|
|
|
1209 cycle->connection_n = ecf->connections;
|
|
0
|
1210
|
|
16
|
1211 ngx_conf_init_unsigned_value(ecf->use, module->ctx_index);
|
|
0
|
1212
|
|
16
|
1213 event_module = module->ctx;
|
|
|
1214 ngx_conf_init_ptr_value(ecf->name, event_module->name->data);
|
|
0
|
1215
|
|
|
1216 ngx_conf_init_value(ecf->multi_accept, 0);
|
|
|
1217 ngx_conf_init_value(ecf->accept_mutex, 1);
|
|
|
1218 ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);
|
|
|
1219
|
|
16
|
1220
|
|
50
|
1221 #if (NGX_HAVE_RTSIG)
|
|
|
1222
|
|
|
1223 if (!rtsig) {
|
|
|
1224 return NGX_CONF_OK;
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 if (ecf->accept_mutex) {
|
|
16
|
1228 return NGX_CONF_OK;
|
|
0
|
1229 }
|
|
16
|
1230
|
|
|
1231 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
1232
|
|
16
|
1233 if (ccf->worker_processes == 0) {
|
|
|
1234 return NGX_CONF_OK;
|
|
|
1235 }
|
|
|
1236
|
|
|
1237 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
1238 "the \"rtsig\" method requires \"accept_mutex\" to be on");
|
|
|
1239
|
|
|
1240 return NGX_CONF_ERROR;
|
|
122
|
1241
|
|
|
1242 #else
|
|
|
1243
|
|
|
1244 return NGX_CONF_OK;
|
|
|
1245
|
|
|
1246 #endif
|
|
0
|
1247 }
|
