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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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236
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16 extern ngx_module_t ngx_eventport_module;
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16
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17 extern ngx_module_t ngx_devpoll_module;
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18 extern ngx_module_t ngx_epoll_module;
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19 extern ngx_module_t ngx_rtsig_module;
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0
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20 extern ngx_module_t ngx_select_module;
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21
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22
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23 static ngx_int_t ngx_event_module_init(ngx_cycle_t *cycle);
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24 static ngx_int_t ngx_event_process_init(ngx_cycle_t *cycle);
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25 static char *ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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26
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27 static char *ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd,
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58
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28 void *conf);
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0
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29 static char *ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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30 static char *ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd,
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58
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31 void *conf);
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0
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32
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33 static void *ngx_event_create_conf(ngx_cycle_t *cycle);
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34 static char *ngx_event_init_conf(ngx_cycle_t *cycle, void *conf);
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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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160
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51 ngx_shmtx_t ngx_accept_mutex;
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52 ngx_uint_t ngx_use_accept_mutex;
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236
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53 ngx_uint_t ngx_accept_events;
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44
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54 ngx_uint_t ngx_accept_mutex_held;
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55 ngx_msec_t ngx_accept_mutex_delay;
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56 ngx_int_t ngx_accept_disabled;
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110
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57 ngx_file_t ngx_accept_mutex_lock_file;
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0
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58
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59
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60 #if (NGX_STAT_STUB)
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61
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62 ngx_atomic_t ngx_stat_accepted0;
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63 ngx_atomic_t *ngx_stat_accepted = &ngx_stat_accepted0;
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44
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64 ngx_atomic_t ngx_stat_handled0;
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65 ngx_atomic_t *ngx_stat_handled = &ngx_stat_handled0;
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0
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66 ngx_atomic_t ngx_stat_requests0;
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67 ngx_atomic_t *ngx_stat_requests = &ngx_stat_requests0;
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68 ngx_atomic_t ngx_stat_active0;
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69 ngx_atomic_t *ngx_stat_active = &ngx_stat_active0;
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70 ngx_atomic_t ngx_stat_reading0;
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71 ngx_atomic_t *ngx_stat_reading = &ngx_stat_reading0;
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72 ngx_atomic_t ngx_stat_writing0;
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44
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73 ngx_atomic_t *ngx_stat_writing = &ngx_stat_writing0;
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0
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74
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75 #endif
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76
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77
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78
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79 static ngx_command_t ngx_events_commands[] = {
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80
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81 { ngx_string("events"),
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82 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
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83 ngx_events_block,
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84 0,
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85 0,
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86 NULL },
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87
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88 ngx_null_command
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89 };
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90
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126
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91
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0
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92 static ngx_core_module_t ngx_events_module_ctx = {
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93 ngx_string("events"),
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94 NULL,
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95 NULL
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126
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96 };
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0
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97
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98
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99 ngx_module_t ngx_events_module = {
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58
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100 NGX_MODULE_V1,
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0
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101 &ngx_events_module_ctx, /* module context */
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102 ngx_events_commands, /* module directives */
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103 NGX_CORE_MODULE, /* module type */
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90
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104 NULL, /* init master */
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0
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105 NULL, /* init module */
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90
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106 NULL, /* init process */
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107 NULL, /* init thread */
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108 NULL, /* exit thread */
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109 NULL, /* exit process */
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110 NULL, /* exit master */
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111 NGX_MODULE_V1_PADDING
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0
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112 };
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113
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114
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115 static ngx_str_t event_core_name = ngx_string("event_core");
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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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216
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142 NGX_EVENT_CONF|NGX_CONF_FLAG,
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0
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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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216
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149 NGX_EVENT_CONF|NGX_CONF_FLAG,
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0
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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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160
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153 NULL },
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0
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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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160
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221 if (ngx_use_accept_mutex) {
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112
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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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160
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257 ngx_shmtx_unlock(&ngx_accept_mutex);
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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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58
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278 ngx_int_t
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324
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279 ngx_handle_read_event(ngx_event_t *rev, ngx_uint_t flags)
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58
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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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236
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319 } else if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
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58
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320
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321 /* event ports */
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322
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236
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323 if (!rev->active && !rev->ready) {
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324 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
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58
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325 return NGX_ERROR;
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326 }
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236
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327
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328 return NGX_OK;
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58
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329 }
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126
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330
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236
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331 if (rev->oneshot && !rev->ready) {
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332 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
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333 return NGX_ERROR;
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334 }
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335
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336 return NGX_OK;
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337 }
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58
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338 }
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339
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340 /* aio, iocp, rtsig */
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341
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342 return NGX_OK;
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343 }
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344
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345
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346 ngx_int_t
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347 ngx_handle_write_event(ngx_event_t *wev, size_t lowat)
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348 {
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349 ngx_connection_t *c;
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350
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351 if (lowat) {
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236
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352 c = wev->data;
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58
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353
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354 if (ngx_send_lowat(c, lowat) == NGX_ERROR) {
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355 return NGX_ERROR;
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356 }
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357 }
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358
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359 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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360
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361 /* kqueue, epoll */
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362
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363 if (!wev->active && !wev->ready) {
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364 if (ngx_add_event(wev, NGX_WRITE_EVENT,
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365 NGX_CLEAR_EVENT | (lowat ? NGX_LOWAT_EVENT : 0))
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366 == NGX_ERROR)
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367 {
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368 return NGX_ERROR;
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369 }
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370 }
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371
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372 return NGX_OK;
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373
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374 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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375
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376 /* select, poll, /dev/poll */
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377
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378 if (!wev->active && !wev->ready) {
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379 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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380 == NGX_ERROR)
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381 {
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382 return NGX_ERROR;
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383 }
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384
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385 return NGX_OK;
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386 }
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387
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388 if (wev->active && wev->ready) {
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389 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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390 == NGX_ERROR)
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391 {
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392 return NGX_ERROR;
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393 }
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394
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395 return NGX_OK;
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396 }
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397
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236
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398 } else if (ngx_event_flags & NGX_USE_EVENTPORT_EVENT) {
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58
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399
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400 /* event ports */
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401
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236
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402 if (!wev->active && !wev->ready) {
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403 if (ngx_add_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
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58
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404 return NGX_ERROR;
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405 }
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236
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406
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407 return NGX_OK;
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58
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408 }
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126
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409
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236
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410 if (wev->oneshot && wev->ready) {
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|
|
411 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
412 return NGX_ERROR;
|
|
|
413 }
|
|
|
414
|
|
|
415 return NGX_OK;
|
|
|
416 }
|
|
58
|
417 }
|
|
|
418
|
|
|
419 /* aio, iocp, rtsig */
|
|
|
420
|
|
|
421 return NGX_OK;
|
|
|
422 }
|
|
|
423
|
|
|
424
|
|
|
425 static ngx_int_t
|
|
|
426 ngx_event_module_init(ngx_cycle_t *cycle)
|
|
0
|
427 {
|
|
92
|
428 void ***cf;
|
|
154
|
429 u_char *shared;
|
|
160
|
430 size_t size, cl;
|
|
92
|
431 ngx_event_conf_t *ecf;
|
|
112
|
432 ngx_core_conf_t *ccf;
|
|
154
|
433 ngx_shm_t shm;
|
|
10
|
434 #if !(NGX_WIN32)
|
|
92
|
435 ngx_int_t limit;
|
|
|
436 struct rlimit rlmt;
|
|
|
437 #endif
|
|
22
|
438
|
|
|
439 cf = ngx_get_conf(cycle->conf_ctx, ngx_events_module);
|
|
|
440
|
|
|
441 if (cf == NULL) {
|
|
|
442 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
443 "no \"events\" section in configuration");
|
|
|
444 return NGX_ERROR;
|
|
|
445 }
|
|
|
446
|
|
|
447 ecf = (*cf)[ngx_event_core_module.ctx_index];
|
|
|
448
|
|
190
|
449 if (!ngx_test_config) {
|
|
|
450 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
|
451 "using the \"%s\" event method", ecf->name);
|
|
|
452 }
|
|
22
|
453
|
|
112
|
454 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
455
|
|
112
|
456 ngx_timer_resolution = ccf->timer_resolution;
|
|
|
457
|
|
|
458 #if !(NGX_WIN32)
|
|
0
|
459
|
|
92
|
460 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
461 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
462 "getrlimit(RLIMIT_NOFILE) failed, ignored");
|
|
|
463
|
|
|
464 } else {
|
|
|
465 if (ecf->connections > (ngx_uint_t) rlmt.rlim_cur
|
|
|
466 && (ccf->rlimit_nofile == NGX_CONF_UNSET
|
|
|
467 || ecf->connections > (ngx_uint_t) ccf->rlimit_nofile))
|
|
|
468 {
|
|
|
469 limit = (ccf->rlimit_nofile == NGX_CONF_UNSET) ?
|
|
|
470 (ngx_int_t) rlmt.rlim_cur : ccf->rlimit_nofile;
|
|
|
471
|
|
|
472 ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
473 "%ui worker_connections are more than "
|
|
|
474 "open file resource limit: %i",
|
|
|
475 ecf->connections, limit);
|
|
|
476 }
|
|
|
477 }
|
|
|
478
|
|
154
|
479 #endif /* !(NGX_WIN32) */
|
|
|
480
|
|
92
|
481
|
|
160
|
482 if (ccf->master == 0) {
|
|
0
|
483 return NGX_OK;
|
|
|
484 }
|
|
|
485
|
|
160
|
486 if (ngx_accept_mutex_ptr) {
|
|
|
487 return NGX_OK;
|
|
|
488 }
|
|
|
489
|
|
|
490
|
|
|
491 /* cl should be equal or bigger than cache line size */
|
|
|
492
|
|
|
493 cl = 128;
|
|
|
494
|
|
|
495 size = cl /* ngx_accept_mutex */
|
|
|
496 + cl; /* ngx_connection_counter */
|
|
0
|
497
|
|
|
498 #if (NGX_STAT_STUB)
|
|
|
499
|
|
160
|
500 size += cl /* ngx_stat_accepted */
|
|
|
501 + cl /* ngx_stat_handled */
|
|
|
502 + cl /* ngx_stat_requests */
|
|
|
503 + cl /* ngx_stat_active */
|
|
|
504 + cl /* ngx_stat_reading */
|
|
|
505 + cl; /* ngx_stat_writing */
|
|
0
|
506
|
|
|
507 #endif
|
|
|
508
|
|
154
|
509 shm.size = size;
|
|
|
510 shm.log = cycle->log;
|
|
|
511
|
|
|
512 if (ngx_shm_alloc(&shm) != NGX_OK) {
|
|
0
|
513 return NGX_ERROR;
|
|
|
514 }
|
|
|
515
|
|
154
|
516 shared = shm.addr;
|
|
|
517
|
|
0
|
518 ngx_accept_mutex_ptr = (ngx_atomic_t *) shared;
|
|
160
|
519
|
|
258
|
520 if (ngx_shmtx_create(&ngx_accept_mutex, shared, cycle->lock_file.data)
|
|
160
|
521 != NGX_OK)
|
|
|
522 {
|
|
|
523 return NGX_ERROR;
|
|
|
524 }
|
|
|
525
|
|
|
526 ngx_connection_counter = (ngx_atomic_t *) (shared + 1 * cl);
|
|
0
|
527
|
|
|
528 #if (NGX_STAT_STUB)
|
|
|
529
|
|
160
|
530 ngx_stat_accepted = (ngx_atomic_t *) (shared + 2 * cl);
|
|
|
531 ngx_stat_handled = (ngx_atomic_t *) (shared + 3 * cl);
|
|
|
532 ngx_stat_requests = (ngx_atomic_t *) (shared + 4 * cl);
|
|
|
533 ngx_stat_active = (ngx_atomic_t *) (shared + 5 * cl);
|
|
|
534 ngx_stat_reading = (ngx_atomic_t *) (shared + 6 * cl);
|
|
|
535 ngx_stat_writing = (ngx_atomic_t *) (shared + 7 * cl);
|
|
0
|
536
|
|
|
537 #endif
|
|
|
538
|
|
112
|
539 *ngx_connection_counter = 1;
|
|
|
540
|
|
0
|
541 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
542 "counter: %p, %d",
|
|
0
|
543 ngx_connection_counter, *ngx_connection_counter);
|
|
|
544
|
|
|
545 return NGX_OK;
|
|
|
546 }
|
|
|
547
|
|
|
548
|
|
112
|
549 #if !(NGX_WIN32)
|
|
|
550
|
|
|
551 void
|
|
|
552 ngx_timer_signal_handler(int signo)
|
|
|
553 {
|
|
|
554 ngx_event_timer_alarm = 1;
|
|
|
555
|
|
|
556 ngx_time_update(0, 0);
|
|
|
557
|
|
|
558 #if 1
|
|
|
559 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "timer signal");
|
|
|
560 #endif
|
|
|
561 }
|
|
|
562
|
|
|
563 #endif
|
|
|
564
|
|
|
565
|
|
58
|
566 static ngx_int_t
|
|
|
567 ngx_event_process_init(ngx_cycle_t *cycle)
|
|
0
|
568 {
|
|
|
569 ngx_uint_t m, i;
|
|
|
570 ngx_event_t *rev, *wev;
|
|
92
|
571 ngx_listening_t *ls;
|
|
|
572 ngx_connection_t *c, *next, *old;
|
|
0
|
573 ngx_core_conf_t *ccf;
|
|
|
574 ngx_event_conf_t *ecf;
|
|
|
575 ngx_event_module_t *module;
|
|
10
|
576 #if (NGX_WIN32)
|
|
0
|
577 ngx_iocp_conf_t *iocpcf;
|
|
92
|
578 #else
|
|
|
579 struct rlimit rlmt;
|
|
112
|
580 struct sigaction sa;
|
|
|
581 struct itimerval itv;
|
|
0
|
582 #endif
|
|
|
583
|
|
|
584 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
585 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module);
|
|
|
586
|
|
258
|
587 if (ccf->master && ccf->worker_processes > 1 && ecf->accept_mutex) {
|
|
160
|
588 ngx_use_accept_mutex = 1;
|
|
0
|
589 ngx_accept_mutex_held = 0;
|
|
|
590 ngx_accept_mutex_delay = ecf->accept_mutex_delay;
|
|
160
|
591
|
|
|
592 } else {
|
|
|
593 ngx_use_accept_mutex = 0;
|
|
0
|
594 }
|
|
|
595
|
|
|
596 #if (NGX_THREADS)
|
|
50
|
597 ngx_posted_events_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
598 if (ngx_posted_events_mutex == NULL) {
|
|
0
|
599 return NGX_ERROR;
|
|
|
600 }
|
|
|
601 #endif
|
|
|
602
|
|
|
603 if (ngx_event_timer_init(cycle->log) == NGX_ERROR) {
|
|
|
604 return NGX_ERROR;
|
|
|
605 }
|
|
|
606
|
|
|
607 cycle->connection_n = ecf->connections;
|
|
|
608
|
|
|
609 for (m = 0; ngx_modules[m]; m++) {
|
|
|
610 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
611 continue;
|
|
|
612 }
|
|
|
613
|
|
|
614 if (ngx_modules[m]->ctx_index == ecf->use) {
|
|
|
615 module = ngx_modules[m]->ctx;
|
|
112
|
616 if (module->actions.init(cycle, ngx_timer_resolution) == NGX_ERROR)
|
|
|
617 {
|
|
0
|
618 /* fatal */
|
|
|
619 exit(2);
|
|
|
620 }
|
|
|
621 break;
|
|
|
622 }
|
|
|
623 }
|
|
|
624
|
|
92
|
625 #if !(NGX_WIN32)
|
|
|
626
|
|
112
|
627 if (ngx_timer_resolution && !(ngx_event_flags & NGX_USE_TIMER_EVENT)) {
|
|
|
628
|
|
|
629 ngx_memzero(&sa, sizeof(struct sigaction));
|
|
|
630 sa.sa_handler = ngx_timer_signal_handler;
|
|
|
631 sigemptyset(&sa.sa_mask);
|
|
|
632
|
|
|
633 if (sigaction(SIGALRM, &sa, NULL) == -1) {
|
|
|
634 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
635 "sigaction(SIGALRM) failed");
|
|
|
636 return NGX_ERROR;
|
|
|
637 }
|
|
|
638
|
|
|
639 itv.it_interval.tv_sec = ngx_timer_resolution / 1000;
|
|
|
640 itv.it_interval.tv_usec = (ngx_timer_resolution % 1000) * 1000;
|
|
|
641 itv.it_value.tv_sec = ngx_timer_resolution / 1000;
|
|
|
642 itv.it_value.tv_usec = (ngx_timer_resolution % 1000 ) * 1000;
|
|
|
643
|
|
|
644 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
645 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
646 "setitimer() failed");
|
|
126
|
647 }
|
|
112
|
648 }
|
|
|
649
|
|
92
|
650 if (ngx_event_flags & NGX_USE_FD_EVENT) {
|
|
|
651
|
|
|
652 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
653 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
654 "getrlimit(RLIMIT_NOFILE) failed");
|
|
|
655 return NGX_ERROR;
|
|
|
656 }
|
|
|
657
|
|
|
658 cycle->files_n = (ngx_uint_t) rlmt.rlim_cur;
|
|
|
659
|
|
|
660 cycle->files = ngx_calloc(sizeof(ngx_connection_t *) * cycle->files_n,
|
|
|
661 cycle->log);
|
|
|
662 if (cycle->files == NULL) {
|
|
|
663 return NGX_ERROR;
|
|
|
664 }
|
|
|
665 }
|
|
|
666
|
|
|
667 #endif
|
|
|
668
|
|
110
|
669 cycle->connections = ngx_alloc(sizeof(ngx_connection_t) * ecf->connections,
|
|
0
|
670 cycle->log);
|
|
110
|
671 if (cycle->connections == NULL) {
|
|
0
|
672 return NGX_ERROR;
|
|
|
673 }
|
|
|
674
|
|
110
|
675 c = cycle->connections;
|
|
0
|
676
|
|
110
|
677 cycle->read_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
0
|
678 cycle->log);
|
|
110
|
679 if (cycle->read_events == NULL) {
|
|
0
|
680 return NGX_ERROR;
|
|
|
681 }
|
|
|
682
|
|
110
|
683 rev = cycle->read_events;
|
|
0
|
684 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
685 rev[i].closed = 1;
|
|
30
|
686 rev[i].instance = 1;
|
|
0
|
687 #if (NGX_THREADS)
|
|
|
688 rev[i].lock = &c[i].lock;
|
|
|
689 rev[i].own_lock = &c[i].lock;
|
|
|
690 #endif
|
|
|
691 }
|
|
|
692
|
|
110
|
693 cycle->write_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
30
|
694 cycle->log);
|
|
110
|
695 if (cycle->write_events == NULL) {
|
|
0
|
696 return NGX_ERROR;
|
|
|
697 }
|
|
|
698
|
|
110
|
699 wev = cycle->write_events;
|
|
0
|
700 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
701 wev[i].closed = 1;
|
|
|
702 #if (NGX_THREADS)
|
|
|
703 wev[i].lock = &c[i].lock;
|
|
|
704 wev[i].own_lock = &c[i].lock;
|
|
|
705 #endif
|
|
|
706 }
|
|
|
707
|
|
92
|
708 i = cycle->connection_n;
|
|
|
709 next = NULL;
|
|
|
710
|
|
|
711 do {
|
|
|
712 i--;
|
|
|
713
|
|
|
714 c[i].data = next;
|
|
110
|
715 c[i].read = &cycle->read_events[i];
|
|
|
716 c[i].write = &cycle->write_events[i];
|
|
92
|
717 c[i].fd = (ngx_socket_t) -1;
|
|
|
718
|
|
|
719 next = &c[i];
|
|
|
720
|
|
|
721 #if (NGX_THREADS)
|
|
|
722 c[i].lock = 0;
|
|
|
723 #endif
|
|
|
724 } while (i);
|
|
|
725
|
|
|
726 cycle->free_connections = next;
|
|
|
727 cycle->free_connection_n = ecf->connections;
|
|
|
728
|
|
0
|
729 /* for each listening socket */
|
|
|
730
|
|
92
|
731 ls = cycle->listening.elts;
|
|
0
|
732 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
733
|
|
92
|
734 c = ngx_get_connection(ls[i].fd, cycle->log);
|
|
0
|
735
|
|
92
|
736 if (c == NULL) {
|
|
|
737 return NGX_ERROR;
|
|
|
738 }
|
|
0
|
739
|
|
92
|
740 c->log = &ls[i].log;
|
|
|
741
|
|
|
742 c->listening = &ls[i];
|
|
|
743 ls[i].connection = c;
|
|
|
744
|
|
110
|
745 rev = c->read;
|
|
0
|
746
|
|
|
747 rev->log = c->log;
|
|
|
748 rev->accept = 1;
|
|
|
749
|
|
18
|
750 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
92
|
751 rev->deferred_accept = ls[i].deferred_accept;
|
|
0
|
752 #endif
|
|
|
753
|
|
|
754 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) {
|
|
92
|
755 if (ls[i].previous) {
|
|
0
|
756
|
|
|
757 /*
|
|
|
758 * delete the old accept events that were bound to
|
|
|
759 * the old cycle read events array
|
|
|
760 */
|
|
|
761
|
|
92
|
762 old = ls[i].previous->connection;
|
|
|
763
|
|
|
764 if (ngx_del_event(old->read, NGX_READ_EVENT, NGX_CLOSE_EVENT)
|
|
|
765 == NGX_ERROR)
|
|
0
|
766 {
|
|
|
767 return NGX_ERROR;
|
|
|
768 }
|
|
|
769
|
|
92
|
770 old->fd = (ngx_socket_t) -1;
|
|
0
|
771 }
|
|
|
772 }
|
|
|
773
|
|
10
|
774 #if (NGX_WIN32)
|
|
0
|
775
|
|
|
776 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
58
|
777 rev->handler = ngx_event_acceptex;
|
|
0
|
778
|
|
|
779 if (ngx_add_event(rev, 0, NGX_IOCP_ACCEPT) == NGX_ERROR) {
|
|
|
780 return NGX_ERROR;
|
|
|
781 }
|
|
|
782
|
|
92
|
783 ls[i].log.handler = ngx_acceptex_log_error;
|
|
|
784
|
|
0
|
785 iocpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_iocp_module);
|
|
92
|
786 if (ngx_event_post_acceptex(&ls[i], iocpcf->post_acceptex)
|
|
|
787 == NGX_ERROR)
|
|
0
|
788 {
|
|
|
789 return NGX_ERROR;
|
|
|
790 }
|
|
|
791
|
|
|
792 } else {
|
|
58
|
793 rev->handler = ngx_event_accept;
|
|
10
|
794
|
|
0
|
795 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
796 return NGX_ERROR;
|
|
|
797 }
|
|
|
798 }
|
|
|
799
|
|
|
800 #else
|
|
|
801
|
|
58
|
802 rev->handler = ngx_event_accept;
|
|
0
|
803
|
|
160
|
804 if (ngx_use_accept_mutex) {
|
|
0
|
805 continue;
|
|
|
806 }
|
|
|
807
|
|
|
808 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
809 if (ngx_add_conn(c) == NGX_ERROR) {
|
|
|
810 return NGX_ERROR;
|
|
|
811 }
|
|
|
812
|
|
|
813 } else {
|
|
|
814 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
815 return NGX_ERROR;
|
|
|
816 }
|
|
|
817 }
|
|
|
818
|
|
|
819 #endif
|
|
92
|
820
|
|
0
|
821 }
|
|
|
822
|
|
|
823 return NGX_OK;
|
|
|
824 }
|
|
|
825
|
|
|
826
|
|
58
|
827 ngx_int_t
|
|
|
828 ngx_send_lowat(ngx_connection_t *c, size_t lowat)
|
|
2
|
829 {
|
|
|
830 int sndlowat;
|
|
|
831
|
|
4
|
832 #if (NGX_HAVE_LOWAT_EVENT)
|
|
2
|
833
|
|
4
|
834 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
2
|
835 c->write->available = lowat;
|
|
|
836 return NGX_OK;
|
|
|
837 }
|
|
|
838
|
|
|
839 #endif
|
|
126
|
840
|
|
2
|
841 if (lowat == 0 || c->sndlowat) {
|
|
|
842 return NGX_OK;
|
|
|
843 }
|
|
|
844
|
|
|
845 sndlowat = (int) lowat;
|
|
|
846
|
|
|
847 if (setsockopt(c->fd, SOL_SOCKET, SO_SNDLOWAT,
|
|
282
|
848 (const void *) &sndlowat, sizeof(int))
|
|
|
849 == -1)
|
|
2
|
850 {
|
|
|
851 ngx_connection_error(c, ngx_socket_errno,
|
|
|
852 "setsockopt(SO_SNDLOWAT) failed");
|
|
|
853 return NGX_ERROR;
|
|
|
854 }
|
|
|
855
|
|
|
856 c->sndlowat = 1;
|
|
|
857
|
|
|
858 return NGX_OK;
|
|
|
859 }
|
|
|
860
|
|
|
861
|
|
58
|
862 static char *
|
|
|
863 ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
864 {
|
|
50
|
865 char *rv;
|
|
0
|
866 void ***ctx;
|
|
50
|
867 ngx_uint_t i;
|
|
0
|
868 ngx_conf_t pcf;
|
|
50
|
869 ngx_event_module_t *m;
|
|
0
|
870
|
|
|
871 /* count the number of the event modules and set up their indices */
|
|
|
872
|
|
|
873 ngx_event_max_module = 0;
|
|
50
|
874 for (i = 0; ngx_modules[i]; i++) {
|
|
|
875 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
876 continue;
|
|
|
877 }
|
|
|
878
|
|
50
|
879 ngx_modules[i]->ctx_index = ngx_event_max_module++;
|
|
0
|
880 }
|
|
|
881
|
|
50
|
882 ctx = ngx_pcalloc(cf->pool, sizeof(void *));
|
|
|
883 if (ctx == NULL) {
|
|
|
884 return NGX_CONF_ERROR;
|
|
|
885 }
|
|
0
|
886
|
|
50
|
887 *ctx = ngx_pcalloc(cf->pool, ngx_event_max_module * sizeof(void *));
|
|
|
888 if (*ctx == NULL) {
|
|
|
889 return NGX_CONF_ERROR;
|
|
|
890 }
|
|
0
|
891
|
|
|
892 *(void **) conf = ctx;
|
|
|
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->create_conf) {
|
|
|
902 (*ctx)[ngx_modules[i]->ctx_index] = m->create_conf(cf->cycle);
|
|
|
903 if ((*ctx)[ngx_modules[i]->ctx_index] == NULL) {
|
|
|
904 return NGX_CONF_ERROR;
|
|
|
905 }
|
|
0
|
906 }
|
|
|
907 }
|
|
|
908
|
|
|
909 pcf = *cf;
|
|
|
910 cf->ctx = ctx;
|
|
|
911 cf->module_type = NGX_EVENT_MODULE;
|
|
|
912 cf->cmd_type = NGX_EVENT_CONF;
|
|
50
|
913
|
|
0
|
914 rv = ngx_conf_parse(cf, NULL);
|
|
50
|
915
|
|
0
|
916 *cf = pcf;
|
|
|
917
|
|
|
918 if (rv != NGX_CONF_OK)
|
|
|
919 return rv;
|
|
|
920
|
|
50
|
921 for (i = 0; ngx_modules[i]; i++) {
|
|
|
922 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
923 continue;
|
|
|
924 }
|
|
|
925
|
|
50
|
926 m = ngx_modules[i]->ctx;
|
|
0
|
927
|
|
50
|
928 if (m->init_conf) {
|
|
|
929 rv = m->init_conf(cf->cycle, (*ctx)[ngx_modules[i]->ctx_index]);
|
|
0
|
930 if (rv != NGX_CONF_OK) {
|
|
|
931 return rv;
|
|
|
932 }
|
|
|
933 }
|
|
|
934 }
|
|
|
935
|
|
|
936 return NGX_CONF_OK;
|
|
|
937 }
|
|
|
938
|
|
|
939
|
|
58
|
940 static char *
|
|
|
941 ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
942 {
|
|
|
943 ngx_event_conf_t *ecf = conf;
|
|
|
944
|
|
|
945 ngx_str_t *value;
|
|
|
946
|
|
|
947 if (ecf->connections != NGX_CONF_UNSET_UINT) {
|
|
|
948 return "is duplicate" ;
|
|
|
949 }
|
|
|
950
|
|
130
|
951 if (ngx_strcmp(cmd->name.data, "connections") == 0) {
|
|
|
952 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
953 "the \"connections\" directive is deprecated, "
|
|
|
954 "use the \"worker_connections\" directive instead");
|
|
|
955 }
|
|
|
956
|
|
0
|
957 value = cf->args->elts;
|
|
|
958 ecf->connections = ngx_atoi(value[1].data, value[1].len);
|
|
|
959 if (ecf->connections == (ngx_uint_t) NGX_ERROR) {
|
|
|
960 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
961 "invalid number \"%V\"", &value[1]);
|
|
0
|
962
|
|
|
963 return NGX_CONF_ERROR;
|
|
|
964 }
|
|
|
965
|
|
|
966 cf->cycle->connection_n = ecf->connections;
|
|
|
967
|
|
|
968 return NGX_CONF_OK;
|
|
|
969 }
|
|
|
970
|
|
|
971
|
|
58
|
972 static char *
|
|
|
973 ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
974 {
|
|
|
975 ngx_event_conf_t *ecf = conf;
|
|
|
976
|
|
|
977 ngx_int_t m;
|
|
|
978 ngx_str_t *value;
|
|
|
979 ngx_event_conf_t *old_ecf;
|
|
|
980 ngx_event_module_t *module;
|
|
|
981
|
|
|
982 if (ecf->use != NGX_CONF_UNSET_UINT) {
|
|
|
983 return "is duplicate" ;
|
|
|
984 }
|
|
|
985
|
|
|
986 value = cf->args->elts;
|
|
|
987
|
|
|
988 if (cf->cycle->old_cycle->conf_ctx) {
|
|
|
989 old_ecf = ngx_event_get_conf(cf->cycle->old_cycle->conf_ctx,
|
|
|
990 ngx_event_core_module);
|
|
|
991 } else {
|
|
|
992 old_ecf = NULL;
|
|
|
993 }
|
|
|
994
|
|
|
995
|
|
|
996 for (m = 0; ngx_modules[m]; m++) {
|
|
|
997 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
998 continue;
|
|
|
999 }
|
|
|
1000
|
|
|
1001 module = ngx_modules[m]->ctx;
|
|
|
1002 if (module->name->len == value[1].len) {
|
|
|
1003 if (ngx_strcmp(module->name->data, value[1].data) == 0) {
|
|
|
1004 ecf->use = ngx_modules[m]->ctx_index;
|
|
|
1005 ecf->name = module->name->data;
|
|
|
1006
|
|
|
1007 if (ngx_process == NGX_PROCESS_SINGLE
|
|
|
1008 && old_ecf
|
|
|
1009 && old_ecf->use != ecf->use)
|
|
|
1010 {
|
|
|
1011 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
16
|
1012 "when the server runs without a master process "
|
|
|
1013 "the \"%V\" event type must be the same as "
|
|
|
1014 "in previous configuration - \"%s\" "
|
|
|
1015 "and it can not be changed on the fly, "
|
|
|
1016 "to change it you need to stop server "
|
|
|
1017 "and start it again",
|
|
|
1018 &value[1], old_ecf->name);
|
|
0
|
1019
|
|
|
1020 return NGX_CONF_ERROR;
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 return NGX_CONF_OK;
|
|
|
1024 }
|
|
|
1025 }
|
|
|
1026 }
|
|
|
1027
|
|
|
1028 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1029 "invalid event type \"%V\"", &value[1]);
|
|
0
|
1030
|
|
|
1031 return NGX_CONF_ERROR;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034
|
|
58
|
1035 static char *
|
|
|
1036 ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
1037 {
|
|
|
1038 #if (NGX_DEBUG)
|
|
|
1039 ngx_event_conf_t *ecf = conf;
|
|
|
1040
|
|
326
|
1041 ngx_int_t rc;
|
|
|
1042 ngx_str_t *value;
|
|
214
|
1043 ngx_event_debug_t *dc;
|
|
|
1044 struct hostent *h;
|
|
|
1045 ngx_inet_cidr_t in_cidr;
|
|
0
|
1046
|
|
|
1047 value = cf->args->elts;
|
|
|
1048
|
|
|
1049 /* AF_INET only */
|
|
|
1050
|
|
214
|
1051 dc = ngx_array_push(&ecf->debug_connection);
|
|
|
1052 if (dc == NULL) {
|
|
0
|
1053 return NGX_CONF_ERROR;
|
|
|
1054 }
|
|
|
1055
|
|
214
|
1056 dc->addr = inet_addr((char *) value[1].data);
|
|
0
|
1057
|
|
214
|
1058 if (dc->addr != INADDR_NONE) {
|
|
|
1059 dc->mask = 0xffffffff;
|
|
326
|
1060 return NGX_CONF_OK;
|
|
214
|
1061 }
|
|
|
1062
|
|
326
|
1063 rc = ngx_ptocidr(&value[1], &in_cidr);
|
|
|
1064
|
|
|
1065 if (rc == NGX_DONE) {
|
|
|
1066 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1067 "low address bits of %V are meaningless", &value[1]);
|
|
|
1068 rc = NGX_OK;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 if (rc == NGX_OK) {
|
|
214
|
1072 dc->mask = in_cidr.mask;
|
|
|
1073 dc->addr = in_cidr.addr;
|
|
326
|
1074 return NGX_CONF_OK;
|
|
0
|
1075 }
|
|
|
1076
|
|
|
1077 h = gethostbyname((char *) value[1].data);
|
|
|
1078
|
|
|
1079 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
|
1080 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1081 "host \"%s\" not found", value[1].data);
|
|
0
|
1082 return NGX_CONF_ERROR;
|
|
|
1083 }
|
|
|
1084
|
|
214
|
1085 dc->mask = 0xffffffff;
|
|
|
1086 dc->addr = *(in_addr_t *)(h->h_addr_list[0]);
|
|
0
|
1087
|
|
|
1088 #else
|
|
|
1089
|
|
|
1090 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1091 "\"debug_connection\" is ignored, you need to rebuild "
|
|
|
1092 "nginx using --with-debug option to enable it");
|
|
|
1093
|
|
|
1094 #endif
|
|
|
1095
|
|
326
|
1096 return NGX_CONF_OK;
|
|
0
|
1097 }
|
|
|
1098
|
|
|
1099
|
|
58
|
1100 static void *
|
|
|
1101 ngx_event_create_conf(ngx_cycle_t *cycle)
|
|
0
|
1102 {
|
|
|
1103 ngx_event_conf_t *ecf;
|
|
|
1104
|
|
50
|
1105 ecf = ngx_palloc(cycle->pool, sizeof(ngx_event_conf_t));
|
|
|
1106 if (ecf == NULL) {
|
|
|
1107 return NGX_CONF_ERROR;
|
|
|
1108 }
|
|
0
|
1109
|
|
|
1110 ecf->connections = NGX_CONF_UNSET_UINT;
|
|
|
1111 ecf->use = NGX_CONF_UNSET_UINT;
|
|
|
1112 ecf->multi_accept = NGX_CONF_UNSET;
|
|
|
1113 ecf->accept_mutex = NGX_CONF_UNSET;
|
|
|
1114 ecf->accept_mutex_delay = NGX_CONF_UNSET_MSEC;
|
|
|
1115 ecf->name = (void *) NGX_CONF_UNSET;
|
|
|
1116
|
|
|
1117 #if (NGX_DEBUG)
|
|
50
|
1118
|
|
|
1119 if (ngx_array_init(&ecf->debug_connection, cycle->pool, 4,
|
|
214
|
1120 sizeof(ngx_event_debug_t)) == NGX_ERROR)
|
|
50
|
1121 {
|
|
|
1122 return NGX_CONF_ERROR;
|
|
|
1123 }
|
|
|
1124
|
|
0
|
1125 #endif
|
|
|
1126
|
|
|
1127 return ecf;
|
|
|
1128 }
|
|
|
1129
|
|
|
1130
|
|
58
|
1131 static char *
|
|
|
1132 ngx_event_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
1133 {
|
|
|
1134 ngx_event_conf_t *ecf = conf;
|
|
16
|
1135
|
|
50
|
1136 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
|
1137 int fd;
|
|
|
1138 #endif
|
|
|
1139 #if (NGX_HAVE_RTSIG)
|
|
|
1140 ngx_uint_t rtsig;
|
|
122
|
1141 ngx_core_conf_t *ccf;
|
|
50
|
1142 #endif
|
|
16
|
1143 ngx_int_t i, connections;
|
|
|
1144 ngx_module_t *module;
|
|
|
1145 ngx_event_module_t *event_module;
|
|
|
1146
|
|
|
1147 connections = NGX_CONF_UNSET_UINT;
|
|
|
1148 module = NULL;
|
|
|
1149
|
|
18
|
1150 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
16
|
1151
|
|
|
1152 fd = epoll_create(100);
|
|
|
1153
|
|
|
1154 if (fd != -1) {
|
|
|
1155 close(fd);
|
|
|
1156 connections = DEFAULT_CONNECTIONS;
|
|
|
1157 module = &ngx_epoll_module;
|
|
|
1158
|
|
|
1159 } else if (ngx_errno != NGX_ENOSYS) {
|
|
|
1160 connections = DEFAULT_CONNECTIONS;
|
|
|
1161 module = &ngx_epoll_module;
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 #endif
|
|
|
1165
|
|
18
|
1166 #if (NGX_HAVE_RTSIG)
|
|
16
|
1167
|
|
|
1168 if (module == NULL) {
|
|
|
1169 connections = DEFAULT_CONNECTIONS;
|
|
|
1170 module = &ngx_rtsig_module;
|
|
|
1171 rtsig = 1;
|
|
50
|
1172
|
|
|
1173 } else {
|
|
|
1174 rtsig = 0;
|
|
16
|
1175 }
|
|
|
1176
|
|
|
1177 #endif
|
|
|
1178
|
|
18
|
1179 #if (NGX_HAVE_DEVPOLL)
|
|
16
|
1180
|
|
|
1181 connections = DEFAULT_CONNECTIONS;
|
|
|
1182 module = &ngx_devpoll_module;
|
|
|
1183
|
|
0
|
1184 #endif
|
|
|
1185
|
|
18
|
1186 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1187
|
|
16
|
1188 connections = DEFAULT_CONNECTIONS;
|
|
|
1189 module = &ngx_kqueue_module;
|
|
0
|
1190
|
|
16
|
1191 #endif
|
|
0
|
1192
|
|
18
|
1193 #if (NGX_HAVE_SELECT)
|
|
0
|
1194
|
|
16
|
1195 if (module == NULL) {
|
|
0
|
1196
|
|
50
|
1197 #if (NGX_WIN32 || FD_SETSIZE >= DEFAULT_CONNECTIONS)
|
|
16
|
1198 connections = DEFAULT_CONNECTIONS;
|
|
0
|
1199 #else
|
|
50
|
1200 connections = FD_SETSIZE;
|
|
16
|
1201 #endif
|
|
|
1202 module = &ngx_select_module;
|
|
|
1203 }
|
|
|
1204
|
|
0
|
1205 #endif
|
|
|
1206
|
|
16
|
1207 if (module == NULL) {
|
|
|
1208 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1209 if (ngx_modules[i]->type == NGX_EVENT_MODULE) {
|
|
|
1210 event_module = ngx_modules[i]->ctx;
|
|
0
|
1211
|
|
16
|
1212 if (ngx_strcmp(event_module->name->data, event_core_name.data)
|
|
236
|
1213 == 0)
|
|
16
|
1214 {
|
|
|
1215 continue;
|
|
|
1216 }
|
|
0
|
1217
|
|
16
|
1218 module = ngx_modules[i];
|
|
|
1219 break;
|
|
0
|
1220 }
|
|
|
1221 }
|
|
|
1222 }
|
|
|
1223
|
|
16
|
1224 if (module == NULL) {
|
|
0
|
1225 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
|
|
|
1226 return NGX_CONF_ERROR;
|
|
|
1227 }
|
|
|
1228
|
|
212
|
1229 ngx_conf_init_uint_value(ecf->connections, connections);
|
|
16
|
1230 cycle->connection_n = ecf->connections;
|
|
0
|
1231
|
|
212
|
1232 ngx_conf_init_uint_value(ecf->use, module->ctx_index);
|
|
0
|
1233
|
|
16
|
1234 event_module = module->ctx;
|
|
|
1235 ngx_conf_init_ptr_value(ecf->name, event_module->name->data);
|
|
0
|
1236
|
|
|
1237 ngx_conf_init_value(ecf->multi_accept, 0);
|
|
|
1238 ngx_conf_init_value(ecf->accept_mutex, 1);
|
|
|
1239 ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);
|
|
|
1240
|
|
16
|
1241
|
|
50
|
1242 #if (NGX_HAVE_RTSIG)
|
|
|
1243
|
|
|
1244 if (!rtsig) {
|
|
|
1245 return NGX_CONF_OK;
|
|
|
1246 }
|
|
|
1247
|
|
|
1248 if (ecf->accept_mutex) {
|
|
16
|
1249 return NGX_CONF_OK;
|
|
0
|
1250 }
|
|
16
|
1251
|
|
|
1252 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
1253
|
|
16
|
1254 if (ccf->worker_processes == 0) {
|
|
|
1255 return NGX_CONF_OK;
|
|
|
1256 }
|
|
|
1257
|
|
|
1258 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
1259 "the \"rtsig\" method requires \"accept_mutex\" to be on");
|
|
|
1260
|
|
|
1261 return NGX_CONF_ERROR;
|
|
122
|
1262
|
|
|
1263 #else
|
|
|
1264
|
|
|
1265 return NGX_CONF_OK;
|
|
|
1266
|
|
|
1267 #endif
|
|
0
|
1268 }
|
