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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 static char *ngx_accept_mutex_check(ngx_conf_t *cf, void *post, void *data);
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35
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36
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112
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37 static ngx_uint_t ngx_timer_resolution;
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38 sig_atomic_t ngx_event_timer_alarm;
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39
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44
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40 static ngx_uint_t ngx_event_max_module;
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0
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41
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44
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42 ngx_uint_t ngx_event_flags;
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43 ngx_event_actions_t ngx_event_actions;
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0
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44
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45
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110
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46 ngx_atomic_t connection_counter = 1;
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42
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47 ngx_atomic_t *ngx_connection_counter = &connection_counter;
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0
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48
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49
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42
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50 ngx_atomic_t *ngx_accept_mutex_ptr;
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51 ngx_atomic_t *ngx_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 static ngx_conf_post_t ngx_accept_mutex_post = { ngx_accept_mutex_check } ;
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116
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117
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118 static ngx_command_t ngx_event_core_commands[] = {
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119
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92
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120 { ngx_string("worker_connections"),
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121 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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122 ngx_event_connections,
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123 0,
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124 0,
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125 NULL },
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126
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0
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127 { ngx_string("connections"),
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128 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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129 ngx_event_connections,
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130 0,
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131 0,
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132 NULL },
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133
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134 { ngx_string("use"),
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135 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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136 ngx_event_use,
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137 0,
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138 0,
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139 NULL },
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140
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141 { ngx_string("multi_accept"),
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142 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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143 ngx_conf_set_flag_slot,
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144 0,
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145 offsetof(ngx_event_conf_t, multi_accept),
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146 NULL },
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147
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148 { ngx_string("accept_mutex"),
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149 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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150 ngx_conf_set_flag_slot,
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151 0,
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152 offsetof(ngx_event_conf_t, accept_mutex),
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153 &ngx_accept_mutex_post },
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154
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155 { ngx_string("accept_mutex_delay"),
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156 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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157 ngx_conf_set_msec_slot,
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158 0,
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159 offsetof(ngx_event_conf_t, accept_mutex_delay),
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160 NULL },
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161
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162 { ngx_string("debug_connection"),
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163 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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164 ngx_event_debug_connection,
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165 0,
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166 0,
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167 NULL },
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168
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169 ngx_null_command
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170 };
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171
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172
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173 ngx_event_module_t ngx_event_core_module_ctx = {
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174 &event_core_name,
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175 ngx_event_create_conf, /* create configuration */
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176 ngx_event_init_conf, /* init configuration */
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177
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178 { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
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179 };
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180
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181
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182 ngx_module_t ngx_event_core_module = {
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58
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183 NGX_MODULE_V1,
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0
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184 &ngx_event_core_module_ctx, /* module context */
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185 ngx_event_core_commands, /* module directives */
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186 NGX_EVENT_MODULE, /* module type */
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90
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187 NULL, /* init master */
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0
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188 ngx_event_module_init, /* init module */
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90
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189 ngx_event_process_init, /* init process */
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190 NULL, /* init thread */
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191 NULL, /* exit thread */
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192 NULL, /* exit process */
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193 NULL, /* exit master */
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194 NGX_MODULE_V1_PADDING
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0
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195 };
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196
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197
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112
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198 void
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199 ngx_process_events_and_timers(ngx_cycle_t *cycle)
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200 {
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201 ngx_uint_t flags;
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116
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202 ngx_msec_t timer, delta;
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112
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203
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204 if (ngx_timer_resolution) {
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205 timer = NGX_TIMER_INFINITE;
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206 flags = 0;
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207
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208 } else {
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209 timer = ngx_event_find_timer();
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210 flags = NGX_UPDATE_TIME;
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211
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212 #if (NGX_THREADS)
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213
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214 if (timer == NGX_TIMER_INFINITE || timer > 500) {
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215 timer = 500;
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216 }
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217
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218 #endif
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219 }
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220
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221 if (ngx_accept_mutex) {
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222 if (ngx_accept_disabled > 0) {
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223 ngx_accept_disabled--;
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224
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225 } else {
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226 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
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227 return;
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228 }
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229
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230 if (ngx_accept_mutex_held) {
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231 flags |= NGX_POST_EVENTS;
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232
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233 } else {
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234 if (timer == NGX_TIMER_INFINITE
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235 || timer > ngx_accept_mutex_delay)
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236 {
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237 timer = ngx_accept_mutex_delay;
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238 }
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239 }
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240 }
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241 }
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242
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116
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243 delta = ngx_current_msec;
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244
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112
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245 (void) ngx_process_events(cycle, timer, flags);
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246
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116
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247 delta = ngx_current_msec - delta;
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248
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249 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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250 "timer delta: %M", delta);
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251
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112
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252 if (ngx_posted_accept_events) {
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253 ngx_event_process_posted(cycle, &ngx_posted_accept_events);
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254 }
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255
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256 if (ngx_accept_mutex_held) {
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130
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257 (void) ngx_atomic_cmp_set(ngx_accept_mutex, ngx_pid, 0);
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112
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258 }
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259
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122
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260 if (delta) {
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261 ngx_event_expire_timers();
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262 }
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263
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112
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264 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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265 "posted events %p", ngx_posted_events);
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266
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267 if (ngx_posted_events) {
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268 if (ngx_threaded) {
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269 ngx_wakeup_worker_thread(cycle);
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270
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271 } else {
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272 ngx_event_process_posted(cycle, &ngx_posted_events);
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273 }
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274 }
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275 }
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276
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277
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278 ngx_int_t
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279 ngx_handle_read_event(ngx_event_t *rev, u_int flags)
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280 {
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281 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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126
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282
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58
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283 /* kqueue, epoll */
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284
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285 if (!rev->active && !rev->ready) {
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286 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT)
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287 == NGX_ERROR)
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288 {
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289 return NGX_ERROR;
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290 }
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291 }
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126
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292
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58
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293 return NGX_OK;
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294
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295 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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296
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297 /* select, poll, /dev/poll */
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298
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299 if (!rev->active && !rev->ready) {
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300 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT)
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301 == NGX_ERROR)
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302 {
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303 return NGX_ERROR;
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304 }
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305
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306 return NGX_OK;
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307 }
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308
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309 if (rev->active && (rev->ready || (flags & NGX_CLOSE_EVENT))) {
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310 if (ngx_del_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT | flags)
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311 == NGX_ERROR)
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312 {
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313 return NGX_ERROR;
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314 }
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315
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316 return NGX_OK;
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317 }
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318
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319 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
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320
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321 /* event ports */
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322
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323 if (!rev->active) {
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324 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_ONESHOT_EVENT)
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325 == NGX_ERROR)
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326 {
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327 return NGX_ERROR;
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328 }
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329 }
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126
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330
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58
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331 return NGX_OK;
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332 }
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333
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334 /* aio, iocp, rtsig */
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335
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336 return NGX_OK;
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337 }
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338
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339
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340 ngx_int_t
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341 ngx_handle_write_event(ngx_event_t *wev, size_t lowat)
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342 {
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343 ngx_connection_t *c;
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344
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345 if (lowat) {
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346 c = (ngx_connection_t *) wev->data;
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347
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348 if (ngx_send_lowat(c, lowat) == NGX_ERROR) {
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349 return NGX_ERROR;
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350 }
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351 }
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352
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353 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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354
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355 /* kqueue, epoll */
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356
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357 if (!wev->active && !wev->ready) {
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358 if (ngx_add_event(wev, NGX_WRITE_EVENT,
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359 NGX_CLEAR_EVENT | (lowat ? NGX_LOWAT_EVENT : 0))
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360 == NGX_ERROR)
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361 {
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362 return NGX_ERROR;
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363 }
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364 }
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365
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366 return NGX_OK;
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367
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368 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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369
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370 /* select, poll, /dev/poll */
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371
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372 if (!wev->active && !wev->ready) {
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373 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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374 == NGX_ERROR)
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375 {
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376 return NGX_ERROR;
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377 }
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378
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379 return NGX_OK;
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380 }
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381
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382 if (wev->active && wev->ready) {
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383 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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384 == NGX_ERROR)
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385 {
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386 return NGX_ERROR;
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387 }
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388
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389 return NGX_OK;
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390 }
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391
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392 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
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393
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394 /* event ports */
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395
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396 if (!wev->active) {
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397 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT)
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398 == NGX_ERROR)
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399 {
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400 return NGX_ERROR;
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401 }
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402 }
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126
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403
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58
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404 return NGX_OK;
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405 }
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406
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407 /* aio, iocp, rtsig */
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408
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409 return NGX_OK;
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410 }
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411
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412
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413 static ngx_int_t
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414 ngx_event_module_init(ngx_cycle_t *cycle)
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0
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415 {
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92
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416 void ***cf;
|
|
154
|
417 u_char *shared;
|
|
|
418 size_t size;
|
|
92
|
419 ngx_event_conf_t *ecf;
|
|
112
|
420 ngx_core_conf_t *ccf;
|
|
154
|
421 ngx_shm_t shm;
|
|
10
|
422 #if !(NGX_WIN32)
|
|
92
|
423 ngx_int_t limit;
|
|
|
424 struct rlimit rlmt;
|
|
|
425 #endif
|
|
22
|
426
|
|
|
427 cf = ngx_get_conf(cycle->conf_ctx, ngx_events_module);
|
|
|
428
|
|
|
429 if (cf == NULL) {
|
|
|
430 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
431 "no \"events\" section in configuration");
|
|
|
432 return NGX_ERROR;
|
|
|
433 }
|
|
|
434
|
|
|
435 ecf = (*cf)[ngx_event_core_module.ctx_index];
|
|
|
436
|
|
110
|
437 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
22
|
438 "using the \"%s\" event method", ecf->name);
|
|
|
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
|
|
0
|
468 if (ccf->master == 0 || ngx_accept_mutex_ptr) {
|
|
|
469 return NGX_OK;
|
|
|
470 }
|
|
|
471
|
|
|
472
|
|
32
|
473 /* TODO: adjust cache line size, 128 is P4 cache line size */
|
|
0
|
474
|
|
|
475 size = 128 /* ngx_accept_mutex */
|
|
|
476 + 128; /* ngx_connection_counter */
|
|
|
477
|
|
|
478 #if (NGX_STAT_STUB)
|
|
|
479
|
|
|
480 size += 128 /* ngx_stat_accepted */
|
|
44
|
481 + 128 /* ngx_stat_handled */
|
|
0
|
482 + 128 /* ngx_stat_requests */
|
|
|
483 + 128 /* ngx_stat_active */
|
|
|
484 + 128 /* ngx_stat_reading */
|
|
|
485 + 128; /* ngx_stat_writing */
|
|
|
486
|
|
|
487 #endif
|
|
|
488
|
|
154
|
489 shm.size = size;
|
|
|
490 shm.log = cycle->log;
|
|
|
491
|
|
|
492 if (ngx_shm_alloc(&shm) != NGX_OK) {
|
|
0
|
493 return NGX_ERROR;
|
|
|
494 }
|
|
|
495
|
|
154
|
496 shared = shm.addr;
|
|
|
497
|
|
0
|
498 ngx_accept_mutex_ptr = (ngx_atomic_t *) shared;
|
|
130
|
499 ngx_connection_counter = (ngx_atomic_t *) (shared + 1 * 128);
|
|
0
|
500
|
|
|
501 #if (NGX_STAT_STUB)
|
|
|
502
|
|
130
|
503 ngx_stat_accepted = (ngx_atomic_t *) (shared + 2 * 128);
|
|
|
504 ngx_stat_handled = (ngx_atomic_t *) (shared + 3 * 128);
|
|
|
505 ngx_stat_requests = (ngx_atomic_t *) (shared + 4 * 128);
|
|
|
506 ngx_stat_active = (ngx_atomic_t *) (shared + 5 * 128);
|
|
|
507 ngx_stat_reading = (ngx_atomic_t *) (shared + 6 * 128);
|
|
|
508 ngx_stat_writing = (ngx_atomic_t *) (shared + 7 * 128);
|
|
0
|
509
|
|
|
510 #endif
|
|
|
511
|
|
112
|
512 *ngx_connection_counter = 1;
|
|
|
513
|
|
0
|
514 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
515 "counter: %p, %d",
|
|
0
|
516 ngx_connection_counter, *ngx_connection_counter);
|
|
|
517
|
|
|
518 return NGX_OK;
|
|
|
519 }
|
|
|
520
|
|
|
521
|
|
112
|
522 #if !(NGX_WIN32)
|
|
|
523
|
|
|
524 void
|
|
|
525 ngx_timer_signal_handler(int signo)
|
|
|
526 {
|
|
|
527 ngx_event_timer_alarm = 1;
|
|
|
528
|
|
|
529 ngx_time_update(0, 0);
|
|
|
530
|
|
|
531 #if 1
|
|
|
532 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "timer signal");
|
|
|
533 #endif
|
|
|
534 }
|
|
|
535
|
|
|
536 #endif
|
|
|
537
|
|
|
538
|
|
58
|
539 static ngx_int_t
|
|
|
540 ngx_event_process_init(ngx_cycle_t *cycle)
|
|
0
|
541 {
|
|
|
542 ngx_uint_t m, i;
|
|
|
543 ngx_event_t *rev, *wev;
|
|
92
|
544 ngx_listening_t *ls;
|
|
|
545 ngx_connection_t *c, *next, *old;
|
|
0
|
546 ngx_core_conf_t *ccf;
|
|
|
547 ngx_event_conf_t *ecf;
|
|
|
548 ngx_event_module_t *module;
|
|
10
|
549 #if (NGX_WIN32)
|
|
0
|
550 ngx_iocp_conf_t *iocpcf;
|
|
92
|
551 #else
|
|
|
552 struct rlimit rlmt;
|
|
112
|
553 struct sigaction sa;
|
|
|
554 struct itimerval itv;
|
|
0
|
555 #endif
|
|
|
556
|
|
|
557 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
558 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module);
|
|
|
559
|
|
|
560 if (ngx_accept_mutex_ptr && ccf->worker_processes > 1 && ecf->accept_mutex)
|
|
|
561 {
|
|
|
562 ngx_accept_mutex = ngx_accept_mutex_ptr;
|
|
|
563 ngx_accept_mutex_held = 0;
|
|
|
564 ngx_accept_mutex_delay = ecf->accept_mutex_delay;
|
|
|
565 }
|
|
|
566
|
|
|
567 #if (NGX_THREADS)
|
|
50
|
568 ngx_posted_events_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
569 if (ngx_posted_events_mutex == NULL) {
|
|
0
|
570 return NGX_ERROR;
|
|
|
571 }
|
|
|
572 #endif
|
|
|
573
|
|
|
574 if (ngx_event_timer_init(cycle->log) == NGX_ERROR) {
|
|
|
575 return NGX_ERROR;
|
|
|
576 }
|
|
|
577
|
|
|
578 cycle->connection_n = ecf->connections;
|
|
|
579
|
|
|
580 for (m = 0; ngx_modules[m]; m++) {
|
|
|
581 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
582 continue;
|
|
|
583 }
|
|
|
584
|
|
|
585 if (ngx_modules[m]->ctx_index == ecf->use) {
|
|
|
586 module = ngx_modules[m]->ctx;
|
|
112
|
587 if (module->actions.init(cycle, ngx_timer_resolution) == NGX_ERROR)
|
|
|
588 {
|
|
0
|
589 /* fatal */
|
|
|
590 exit(2);
|
|
|
591 }
|
|
|
592 break;
|
|
|
593 }
|
|
|
594 }
|
|
|
595
|
|
92
|
596 #if !(NGX_WIN32)
|
|
|
597
|
|
112
|
598 if (ngx_timer_resolution && !(ngx_event_flags & NGX_USE_TIMER_EVENT)) {
|
|
|
599
|
|
|
600 ngx_memzero(&sa, sizeof(struct sigaction));
|
|
|
601 sa.sa_handler = ngx_timer_signal_handler;
|
|
|
602 sigemptyset(&sa.sa_mask);
|
|
|
603
|
|
|
604 if (sigaction(SIGALRM, &sa, NULL) == -1) {
|
|
|
605 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
606 "sigaction(SIGALRM) failed");
|
|
|
607 return NGX_ERROR;
|
|
|
608 }
|
|
|
609
|
|
|
610 itv.it_interval.tv_sec = ngx_timer_resolution / 1000;
|
|
|
611 itv.it_interval.tv_usec = (ngx_timer_resolution % 1000) * 1000;
|
|
|
612 itv.it_value.tv_sec = ngx_timer_resolution / 1000;
|
|
|
613 itv.it_value.tv_usec = (ngx_timer_resolution % 1000 ) * 1000;
|
|
|
614
|
|
|
615 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
616 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
617 "setitimer() failed");
|
|
126
|
618 }
|
|
112
|
619 }
|
|
|
620
|
|
92
|
621 if (ngx_event_flags & NGX_USE_FD_EVENT) {
|
|
|
622
|
|
|
623 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
624 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
625 "getrlimit(RLIMIT_NOFILE) failed");
|
|
|
626 return NGX_ERROR;
|
|
|
627 }
|
|
|
628
|
|
|
629 cycle->files_n = (ngx_uint_t) rlmt.rlim_cur;
|
|
|
630
|
|
|
631 cycle->files = ngx_calloc(sizeof(ngx_connection_t *) * cycle->files_n,
|
|
|
632 cycle->log);
|
|
|
633 if (cycle->files == NULL) {
|
|
|
634 return NGX_ERROR;
|
|
|
635 }
|
|
|
636 }
|
|
|
637
|
|
|
638 #endif
|
|
|
639
|
|
110
|
640 cycle->connections = ngx_alloc(sizeof(ngx_connection_t) * ecf->connections,
|
|
0
|
641 cycle->log);
|
|
110
|
642 if (cycle->connections == NULL) {
|
|
0
|
643 return NGX_ERROR;
|
|
|
644 }
|
|
|
645
|
|
110
|
646 c = cycle->connections;
|
|
0
|
647
|
|
110
|
648 cycle->read_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
0
|
649 cycle->log);
|
|
110
|
650 if (cycle->read_events == NULL) {
|
|
0
|
651 return NGX_ERROR;
|
|
|
652 }
|
|
|
653
|
|
110
|
654 rev = cycle->read_events;
|
|
0
|
655 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
656 rev[i].closed = 1;
|
|
30
|
657 rev[i].instance = 1;
|
|
0
|
658 #if (NGX_THREADS)
|
|
|
659 rev[i].lock = &c[i].lock;
|
|
|
660 rev[i].own_lock = &c[i].lock;
|
|
|
661 #endif
|
|
|
662 }
|
|
|
663
|
|
110
|
664 cycle->write_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
30
|
665 cycle->log);
|
|
110
|
666 if (cycle->write_events == NULL) {
|
|
0
|
667 return NGX_ERROR;
|
|
|
668 }
|
|
|
669
|
|
110
|
670 wev = cycle->write_events;
|
|
0
|
671 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
672 wev[i].closed = 1;
|
|
|
673 #if (NGX_THREADS)
|
|
|
674 wev[i].lock = &c[i].lock;
|
|
|
675 wev[i].own_lock = &c[i].lock;
|
|
|
676 #endif
|
|
|
677 }
|
|
|
678
|
|
92
|
679 i = cycle->connection_n;
|
|
|
680 next = NULL;
|
|
|
681
|
|
|
682 do {
|
|
|
683 i--;
|
|
|
684
|
|
|
685 c[i].data = next;
|
|
110
|
686 c[i].read = &cycle->read_events[i];
|
|
|
687 c[i].write = &cycle->write_events[i];
|
|
92
|
688 c[i].fd = (ngx_socket_t) -1;
|
|
|
689
|
|
|
690 next = &c[i];
|
|
|
691
|
|
|
692 #if (NGX_THREADS)
|
|
|
693 c[i].lock = 0;
|
|
|
694 #endif
|
|
|
695 } while (i);
|
|
|
696
|
|
|
697 cycle->free_connections = next;
|
|
|
698 cycle->free_connection_n = ecf->connections;
|
|
|
699
|
|
0
|
700 /* for each listening socket */
|
|
|
701
|
|
92
|
702 ls = cycle->listening.elts;
|
|
0
|
703 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
704
|
|
92
|
705 c = ngx_get_connection(ls[i].fd, cycle->log);
|
|
0
|
706
|
|
92
|
707 if (c == NULL) {
|
|
|
708 return NGX_ERROR;
|
|
|
709 }
|
|
0
|
710
|
|
92
|
711 c->log = &ls[i].log;
|
|
|
712
|
|
|
713 c->listening = &ls[i];
|
|
|
714 ls[i].connection = c;
|
|
|
715
|
|
|
716 c->ctx = ls[i].ctx;
|
|
|
717 c->servers = ls[i].servers;
|
|
|
718
|
|
110
|
719 rev = c->read;
|
|
0
|
720
|
|
|
721 rev->log = c->log;
|
|
|
722 rev->accept = 1;
|
|
|
723
|
|
18
|
724 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
92
|
725 rev->deferred_accept = ls[i].deferred_accept;
|
|
0
|
726 #endif
|
|
|
727
|
|
|
728 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) {
|
|
92
|
729 if (ls[i].previous) {
|
|
0
|
730
|
|
|
731 /*
|
|
|
732 * delete the old accept events that were bound to
|
|
|
733 * the old cycle read events array
|
|
|
734 */
|
|
|
735
|
|
92
|
736 old = ls[i].previous->connection;
|
|
|
737
|
|
|
738 if (ngx_del_event(old->read, NGX_READ_EVENT, NGX_CLOSE_EVENT)
|
|
|
739 == NGX_ERROR)
|
|
0
|
740 {
|
|
|
741 return NGX_ERROR;
|
|
|
742 }
|
|
|
743
|
|
92
|
744 old->fd = (ngx_socket_t) -1;
|
|
0
|
745 }
|
|
|
746 }
|
|
|
747
|
|
10
|
748 #if (NGX_WIN32)
|
|
0
|
749
|
|
|
750 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
58
|
751 rev->handler = ngx_event_acceptex;
|
|
0
|
752
|
|
|
753 if (ngx_add_event(rev, 0, NGX_IOCP_ACCEPT) == NGX_ERROR) {
|
|
|
754 return NGX_ERROR;
|
|
|
755 }
|
|
|
756
|
|
92
|
757 ls[i].log.handler = ngx_acceptex_log_error;
|
|
|
758
|
|
0
|
759 iocpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_iocp_module);
|
|
92
|
760 if (ngx_event_post_acceptex(&ls[i], iocpcf->post_acceptex)
|
|
|
761 == NGX_ERROR)
|
|
0
|
762 {
|
|
|
763 return NGX_ERROR;
|
|
|
764 }
|
|
|
765
|
|
|
766 } else {
|
|
58
|
767 rev->handler = ngx_event_accept;
|
|
10
|
768
|
|
0
|
769 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
770 return NGX_ERROR;
|
|
|
771 }
|
|
|
772 }
|
|
|
773
|
|
|
774 #else
|
|
|
775
|
|
58
|
776 rev->handler = ngx_event_accept;
|
|
0
|
777
|
|
|
778 if (ngx_accept_mutex) {
|
|
|
779 continue;
|
|
|
780 }
|
|
|
781
|
|
|
782 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
783 if (ngx_add_conn(c) == NGX_ERROR) {
|
|
|
784 return NGX_ERROR;
|
|
|
785 }
|
|
|
786
|
|
|
787 } else {
|
|
|
788 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
789 return NGX_ERROR;
|
|
|
790 }
|
|
|
791 }
|
|
|
792
|
|
|
793 #endif
|
|
92
|
794
|
|
0
|
795 }
|
|
|
796
|
|
|
797 return NGX_OK;
|
|
|
798 }
|
|
|
799
|
|
|
800
|
|
58
|
801 ngx_int_t
|
|
|
802 ngx_send_lowat(ngx_connection_t *c, size_t lowat)
|
|
2
|
803 {
|
|
|
804 int sndlowat;
|
|
|
805
|
|
4
|
806 #if (NGX_HAVE_LOWAT_EVENT)
|
|
2
|
807
|
|
4
|
808 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
2
|
809 c->write->available = lowat;
|
|
|
810 return NGX_OK;
|
|
|
811 }
|
|
|
812
|
|
|
813 #endif
|
|
126
|
814
|
|
2
|
815 if (lowat == 0 || c->sndlowat) {
|
|
|
816 return NGX_OK;
|
|
|
817 }
|
|
|
818
|
|
|
819 sndlowat = (int) lowat;
|
|
|
820
|
|
|
821 if (setsockopt(c->fd, SOL_SOCKET, SO_SNDLOWAT,
|
|
|
822 (const void *) &sndlowat, sizeof(int)) == -1)
|
|
|
823 {
|
|
|
824 ngx_connection_error(c, ngx_socket_errno,
|
|
|
825 "setsockopt(SO_SNDLOWAT) failed");
|
|
|
826 return NGX_ERROR;
|
|
|
827 }
|
|
|
828
|
|
|
829 c->sndlowat = 1;
|
|
|
830
|
|
|
831 return NGX_OK;
|
|
|
832 }
|
|
|
833
|
|
|
834
|
|
58
|
835 static char *
|
|
|
836 ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
837 {
|
|
50
|
838 char *rv;
|
|
0
|
839 void ***ctx;
|
|
50
|
840 ngx_uint_t i;
|
|
0
|
841 ngx_conf_t pcf;
|
|
50
|
842 ngx_event_module_t *m;
|
|
0
|
843
|
|
|
844 /* count the number of the event modules and set up their indices */
|
|
|
845
|
|
|
846 ngx_event_max_module = 0;
|
|
50
|
847 for (i = 0; ngx_modules[i]; i++) {
|
|
|
848 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
849 continue;
|
|
|
850 }
|
|
|
851
|
|
50
|
852 ngx_modules[i]->ctx_index = ngx_event_max_module++;
|
|
0
|
853 }
|
|
|
854
|
|
50
|
855 ctx = ngx_pcalloc(cf->pool, sizeof(void *));
|
|
|
856 if (ctx == NULL) {
|
|
|
857 return NGX_CONF_ERROR;
|
|
|
858 }
|
|
0
|
859
|
|
50
|
860 *ctx = ngx_pcalloc(cf->pool, ngx_event_max_module * sizeof(void *));
|
|
|
861 if (*ctx == NULL) {
|
|
|
862 return NGX_CONF_ERROR;
|
|
|
863 }
|
|
0
|
864
|
|
|
865 *(void **) conf = ctx;
|
|
|
866
|
|
50
|
867 for (i = 0; ngx_modules[i]; i++) {
|
|
|
868 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
869 continue;
|
|
|
870 }
|
|
|
871
|
|
50
|
872 m = ngx_modules[i]->ctx;
|
|
0
|
873
|
|
50
|
874 if (m->create_conf) {
|
|
|
875 (*ctx)[ngx_modules[i]->ctx_index] = m->create_conf(cf->cycle);
|
|
|
876 if ((*ctx)[ngx_modules[i]->ctx_index] == NULL) {
|
|
|
877 return NGX_CONF_ERROR;
|
|
|
878 }
|
|
0
|
879 }
|
|
|
880 }
|
|
|
881
|
|
|
882 pcf = *cf;
|
|
|
883 cf->ctx = ctx;
|
|
|
884 cf->module_type = NGX_EVENT_MODULE;
|
|
|
885 cf->cmd_type = NGX_EVENT_CONF;
|
|
50
|
886
|
|
0
|
887 rv = ngx_conf_parse(cf, NULL);
|
|
50
|
888
|
|
0
|
889 *cf = pcf;
|
|
|
890
|
|
|
891 if (rv != NGX_CONF_OK)
|
|
|
892 return rv;
|
|
|
893
|
|
50
|
894 for (i = 0; ngx_modules[i]; i++) {
|
|
|
895 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
896 continue;
|
|
|
897 }
|
|
|
898
|
|
50
|
899 m = ngx_modules[i]->ctx;
|
|
0
|
900
|
|
50
|
901 if (m->init_conf) {
|
|
|
902 rv = m->init_conf(cf->cycle, (*ctx)[ngx_modules[i]->ctx_index]);
|
|
0
|
903 if (rv != NGX_CONF_OK) {
|
|
|
904 return rv;
|
|
|
905 }
|
|
|
906 }
|
|
|
907 }
|
|
|
908
|
|
|
909 return NGX_CONF_OK;
|
|
|
910 }
|
|
|
911
|
|
|
912
|
|
58
|
913 static char *
|
|
|
914 ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
915 {
|
|
|
916 ngx_event_conf_t *ecf = conf;
|
|
|
917
|
|
|
918 ngx_str_t *value;
|
|
|
919
|
|
|
920 if (ecf->connections != NGX_CONF_UNSET_UINT) {
|
|
|
921 return "is duplicate" ;
|
|
|
922 }
|
|
|
923
|
|
130
|
924 if (ngx_strcmp(cmd->name.data, "connections") == 0) {
|
|
|
925 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
926 "the \"connections\" directive is deprecated, "
|
|
|
927 "use the \"worker_connections\" directive instead");
|
|
|
928 }
|
|
|
929
|
|
0
|
930 value = cf->args->elts;
|
|
|
931 ecf->connections = ngx_atoi(value[1].data, value[1].len);
|
|
|
932 if (ecf->connections == (ngx_uint_t) NGX_ERROR) {
|
|
|
933 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
934 "invalid number \"%V\"", &value[1]);
|
|
0
|
935
|
|
|
936 return NGX_CONF_ERROR;
|
|
|
937 }
|
|
|
938
|
|
|
939 cf->cycle->connection_n = ecf->connections;
|
|
|
940
|
|
|
941 return NGX_CONF_OK;
|
|
|
942 }
|
|
|
943
|
|
|
944
|
|
58
|
945 static char *
|
|
|
946 ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
947 {
|
|
|
948 ngx_event_conf_t *ecf = conf;
|
|
|
949
|
|
|
950 ngx_int_t m;
|
|
|
951 ngx_str_t *value;
|
|
|
952 ngx_event_conf_t *old_ecf;
|
|
|
953 ngx_event_module_t *module;
|
|
|
954
|
|
|
955 if (ecf->use != NGX_CONF_UNSET_UINT) {
|
|
|
956 return "is duplicate" ;
|
|
|
957 }
|
|
|
958
|
|
|
959 value = cf->args->elts;
|
|
|
960
|
|
|
961 if (cf->cycle->old_cycle->conf_ctx) {
|
|
|
962 old_ecf = ngx_event_get_conf(cf->cycle->old_cycle->conf_ctx,
|
|
|
963 ngx_event_core_module);
|
|
|
964 } else {
|
|
|
965 old_ecf = NULL;
|
|
|
966 }
|
|
|
967
|
|
|
968
|
|
|
969 for (m = 0; ngx_modules[m]; m++) {
|
|
|
970 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
971 continue;
|
|
|
972 }
|
|
|
973
|
|
|
974 module = ngx_modules[m]->ctx;
|
|
|
975 if (module->name->len == value[1].len) {
|
|
|
976 if (ngx_strcmp(module->name->data, value[1].data) == 0) {
|
|
|
977 ecf->use = ngx_modules[m]->ctx_index;
|
|
|
978 ecf->name = module->name->data;
|
|
|
979
|
|
|
980 if (ngx_process == NGX_PROCESS_SINGLE
|
|
|
981 && old_ecf
|
|
|
982 && old_ecf->use != ecf->use)
|
|
|
983 {
|
|
|
984 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
16
|
985 "when the server runs without a master process "
|
|
|
986 "the \"%V\" event type must be the same as "
|
|
|
987 "in previous configuration - \"%s\" "
|
|
|
988 "and it can not be changed on the fly, "
|
|
|
989 "to change it you need to stop server "
|
|
|
990 "and start it again",
|
|
|
991 &value[1], old_ecf->name);
|
|
0
|
992
|
|
|
993 return NGX_CONF_ERROR;
|
|
|
994 }
|
|
|
995
|
|
|
996 return NGX_CONF_OK;
|
|
|
997 }
|
|
|
998 }
|
|
|
999 }
|
|
|
1000
|
|
|
1001 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1002 "invalid event type \"%V\"", &value[1]);
|
|
0
|
1003
|
|
|
1004 return NGX_CONF_ERROR;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007
|
|
58
|
1008 static char *
|
|
|
1009 ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
1010 {
|
|
|
1011 #if (NGX_DEBUG)
|
|
|
1012 ngx_event_conf_t *ecf = conf;
|
|
|
1013
|
|
|
1014 in_addr_t *addr;
|
|
|
1015 ngx_str_t *value;
|
|
|
1016 struct hostent *h;
|
|
|
1017
|
|
|
1018 value = cf->args->elts;
|
|
|
1019
|
|
|
1020 /* AF_INET only */
|
|
|
1021
|
|
50
|
1022 addr = ngx_array_push(&ecf->debug_connection);
|
|
|
1023 if (addr == NULL) {
|
|
0
|
1024 return NGX_CONF_ERROR;
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 *addr = inet_addr((char *) value[1].data);
|
|
|
1028
|
|
|
1029 if (*addr != INADDR_NONE) {
|
|
|
1030 return NGX_OK;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 h = gethostbyname((char *) value[1].data);
|
|
|
1034
|
|
|
1035 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
|
1036 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1037 "host \"%s\" not found", value[1].data);
|
|
0
|
1038 return NGX_CONF_ERROR;
|
|
|
1039 }
|
|
|
1040
|
|
|
1041 *addr = *(in_addr_t *)(h->h_addr_list[0]);
|
|
|
1042
|
|
|
1043 #else
|
|
|
1044
|
|
|
1045 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1046 "\"debug_connection\" is ignored, you need to rebuild "
|
|
|
1047 "nginx using --with-debug option to enable it");
|
|
|
1048
|
|
|
1049 #endif
|
|
|
1050
|
|
|
1051 return NGX_OK;
|
|
|
1052 }
|
|
|
1053
|
|
|
1054
|
|
58
|
1055 static void *
|
|
|
1056 ngx_event_create_conf(ngx_cycle_t *cycle)
|
|
0
|
1057 {
|
|
|
1058 ngx_event_conf_t *ecf;
|
|
|
1059
|
|
50
|
1060 ecf = ngx_palloc(cycle->pool, sizeof(ngx_event_conf_t));
|
|
|
1061 if (ecf == NULL) {
|
|
|
1062 return NGX_CONF_ERROR;
|
|
|
1063 }
|
|
0
|
1064
|
|
|
1065 ecf->connections = NGX_CONF_UNSET_UINT;
|
|
|
1066 ecf->use = NGX_CONF_UNSET_UINT;
|
|
|
1067 ecf->multi_accept = NGX_CONF_UNSET;
|
|
|
1068 ecf->accept_mutex = NGX_CONF_UNSET;
|
|
|
1069 ecf->accept_mutex_delay = NGX_CONF_UNSET_MSEC;
|
|
|
1070 ecf->name = (void *) NGX_CONF_UNSET;
|
|
|
1071
|
|
|
1072 #if (NGX_DEBUG)
|
|
50
|
1073
|
|
|
1074 if (ngx_array_init(&ecf->debug_connection, cycle->pool, 4,
|
|
|
1075 sizeof(in_addr_t)) == NGX_ERROR)
|
|
|
1076 {
|
|
|
1077 return NGX_CONF_ERROR;
|
|
|
1078 }
|
|
|
1079
|
|
0
|
1080 #endif
|
|
|
1081
|
|
|
1082 return ecf;
|
|
|
1083 }
|
|
|
1084
|
|
|
1085
|
|
58
|
1086 static char *
|
|
|
1087 ngx_event_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
1088 {
|
|
|
1089 ngx_event_conf_t *ecf = conf;
|
|
16
|
1090
|
|
50
|
1091 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
|
1092 int fd;
|
|
|
1093 #endif
|
|
|
1094 #if (NGX_HAVE_RTSIG)
|
|
|
1095 ngx_uint_t rtsig;
|
|
122
|
1096 ngx_core_conf_t *ccf;
|
|
50
|
1097 #endif
|
|
16
|
1098 ngx_int_t i, connections;
|
|
|
1099 ngx_module_t *module;
|
|
|
1100 ngx_event_module_t *event_module;
|
|
|
1101
|
|
|
1102 connections = NGX_CONF_UNSET_UINT;
|
|
|
1103 module = NULL;
|
|
|
1104
|
|
18
|
1105 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
16
|
1106
|
|
|
1107 fd = epoll_create(100);
|
|
|
1108
|
|
|
1109 if (fd != -1) {
|
|
|
1110 close(fd);
|
|
|
1111 connections = DEFAULT_CONNECTIONS;
|
|
|
1112 module = &ngx_epoll_module;
|
|
|
1113
|
|
|
1114 } else if (ngx_errno != NGX_ENOSYS) {
|
|
|
1115 connections = DEFAULT_CONNECTIONS;
|
|
|
1116 module = &ngx_epoll_module;
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 #endif
|
|
|
1120
|
|
18
|
1121 #if (NGX_HAVE_RTSIG)
|
|
16
|
1122
|
|
|
1123 if (module == NULL) {
|
|
|
1124 connections = DEFAULT_CONNECTIONS;
|
|
|
1125 module = &ngx_rtsig_module;
|
|
|
1126 rtsig = 1;
|
|
50
|
1127
|
|
|
1128 } else {
|
|
|
1129 rtsig = 0;
|
|
16
|
1130 }
|
|
|
1131
|
|
|
1132 #endif
|
|
|
1133
|
|
18
|
1134 #if (NGX_HAVE_DEVPOLL)
|
|
16
|
1135
|
|
|
1136 connections = DEFAULT_CONNECTIONS;
|
|
|
1137 module = &ngx_devpoll_module;
|
|
|
1138
|
|
0
|
1139 #endif
|
|
|
1140
|
|
18
|
1141 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1142
|
|
16
|
1143 connections = DEFAULT_CONNECTIONS;
|
|
|
1144 module = &ngx_kqueue_module;
|
|
0
|
1145
|
|
16
|
1146 #endif
|
|
0
|
1147
|
|
18
|
1148 #if (NGX_HAVE_SELECT)
|
|
0
|
1149
|
|
16
|
1150 if (module == NULL) {
|
|
0
|
1151
|
|
50
|
1152 #if (NGX_WIN32 || FD_SETSIZE >= DEFAULT_CONNECTIONS)
|
|
16
|
1153 connections = DEFAULT_CONNECTIONS;
|
|
0
|
1154 #else
|
|
50
|
1155 connections = FD_SETSIZE;
|
|
16
|
1156 #endif
|
|
|
1157 module = &ngx_select_module;
|
|
|
1158 }
|
|
|
1159
|
|
0
|
1160 #endif
|
|
|
1161
|
|
16
|
1162 if (module == NULL) {
|
|
|
1163 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1164 if (ngx_modules[i]->type == NGX_EVENT_MODULE) {
|
|
|
1165 event_module = ngx_modules[i]->ctx;
|
|
0
|
1166
|
|
16
|
1167 if (ngx_strcmp(event_module->name->data, event_core_name.data)
|
|
|
1168 == 0)
|
|
|
1169 {
|
|
|
1170 continue;
|
|
|
1171 }
|
|
0
|
1172
|
|
16
|
1173 module = ngx_modules[i];
|
|
|
1174 break;
|
|
0
|
1175 }
|
|
|
1176 }
|
|
|
1177 }
|
|
|
1178
|
|
16
|
1179 if (module == NULL) {
|
|
0
|
1180 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
|
|
|
1181 return NGX_CONF_ERROR;
|
|
|
1182 }
|
|
|
1183
|
|
16
|
1184 ngx_conf_init_unsigned_value(ecf->connections, connections);
|
|
|
1185 cycle->connection_n = ecf->connections;
|
|
0
|
1186
|
|
16
|
1187 ngx_conf_init_unsigned_value(ecf->use, module->ctx_index);
|
|
0
|
1188
|
|
16
|
1189 event_module = module->ctx;
|
|
|
1190 ngx_conf_init_ptr_value(ecf->name, event_module->name->data);
|
|
0
|
1191
|
|
|
1192 ngx_conf_init_value(ecf->multi_accept, 0);
|
|
|
1193 ngx_conf_init_value(ecf->accept_mutex, 1);
|
|
|
1194 ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);
|
|
|
1195
|
|
16
|
1196
|
|
50
|
1197 #if (NGX_HAVE_RTSIG)
|
|
|
1198
|
|
|
1199 if (!rtsig) {
|
|
|
1200 return NGX_CONF_OK;
|
|
|
1201 }
|
|
|
1202
|
|
|
1203 if (ecf->accept_mutex) {
|
|
16
|
1204 return NGX_CONF_OK;
|
|
0
|
1205 }
|
|
16
|
1206
|
|
|
1207 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
1208
|
|
16
|
1209 if (ccf->worker_processes == 0) {
|
|
|
1210 return NGX_CONF_OK;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
1214 "the \"rtsig\" method requires \"accept_mutex\" to be on");
|
|
|
1215
|
|
|
1216 return NGX_CONF_ERROR;
|
|
122
|
1217
|
|
|
1218 #else
|
|
|
1219
|
|
|
1220 return NGX_CONF_OK;
|
|
|
1221
|
|
|
1222 #endif
|
|
0
|
1223 }
|
|
|
1224
|
|
|
1225
|
|
58
|
1226 static char *
|
|
|
1227 ngx_accept_mutex_check(ngx_conf_t *cf, void *post, void *data)
|
|
0
|
1228 {
|
|
|
1229 #if !(NGX_HAVE_ATOMIC_OPS)
|
|
|
1230
|
|
|
1231 ngx_flag_t *fp = data;
|
|
|
1232
|
|
|
1233 *fp = 0;
|
|
|
1234
|
|
|
1235 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
52
|
1236 "\"accept_mutex\" is not supported on this platform, "
|
|
|
1237 "ignored");
|
|
0
|
1238
|
|
|
1239 #endif
|
|
|
1240
|
|
|
1241 return NGX_CONF_OK;
|
|
|
1242 }
|
