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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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89
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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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94 };
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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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202 ngx_msec_t timer;
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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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243 (void) ngx_process_events(cycle, timer, flags);
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244
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245 ngx_event_expire_timers();
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246
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247 if (ngx_posted_accept_events) {
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248 ngx_event_process_posted(cycle, &ngx_posted_accept_events);
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249 }
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250
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251 if (ngx_accept_mutex_held) {
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252 ngx_accept_mutex = 0;
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253 }
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254
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255 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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256 "posted events %p", ngx_posted_events);
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257
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258 if (ngx_posted_events) {
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259 if (ngx_threaded) {
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260 ngx_wakeup_worker_thread(cycle);
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261
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262 } else {
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263 ngx_event_process_posted(cycle, &ngx_posted_events);
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264 }
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265 }
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266 }
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267
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268
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58
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269 ngx_int_t
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270 ngx_handle_read_event(ngx_event_t *rev, u_int flags)
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271 {
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272 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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273
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274 /* kqueue, epoll */
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275
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276 if (!rev->active && !rev->ready) {
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277 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_CLEAR_EVENT)
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278 == NGX_ERROR)
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279 {
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280 return NGX_ERROR;
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281 }
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282 }
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283
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284 return NGX_OK;
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285
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286 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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287
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288 /* select, poll, /dev/poll */
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289
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290 if (!rev->active && !rev->ready) {
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291 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT)
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292 == NGX_ERROR)
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293 {
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294 return NGX_ERROR;
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295 }
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296
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297 return NGX_OK;
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298 }
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299
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300 if (rev->active && (rev->ready || (flags & NGX_CLOSE_EVENT))) {
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301 if (ngx_del_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT | flags)
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302 == NGX_ERROR)
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303 {
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304 return NGX_ERROR;
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305 }
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306
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307 return NGX_OK;
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308 }
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309
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310 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
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311
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312 /* event ports */
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313
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314 if (!rev->active) {
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315 if (ngx_add_event(rev, NGX_READ_EVENT, NGX_ONESHOT_EVENT)
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316 == NGX_ERROR)
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317 {
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318 return NGX_ERROR;
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319 }
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320 }
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321
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322 return NGX_OK;
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323 }
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324
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325 /* aio, iocp, rtsig */
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326
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327 return NGX_OK;
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328 }
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329
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330
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331 ngx_int_t
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332 ngx_handle_write_event(ngx_event_t *wev, size_t lowat)
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333 {
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334 ngx_connection_t *c;
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335
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336 if (lowat) {
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337 c = (ngx_connection_t *) wev->data;
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338
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339 if (ngx_send_lowat(c, lowat) == NGX_ERROR) {
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340 return NGX_ERROR;
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341 }
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342 }
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343
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344 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
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345
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346 /* kqueue, epoll */
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347
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348 if (!wev->active && !wev->ready) {
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349 if (ngx_add_event(wev, NGX_WRITE_EVENT,
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350 NGX_CLEAR_EVENT | (lowat ? NGX_LOWAT_EVENT : 0))
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351 == NGX_ERROR)
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352 {
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353 return NGX_ERROR;
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354 }
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355 }
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356
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357 return NGX_OK;
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358
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359 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
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360
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361 /* select, poll, /dev/poll */
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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, NGX_LEVEL_EVENT)
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365 == NGX_ERROR)
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366 {
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367 return NGX_ERROR;
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368 }
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369
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370 return NGX_OK;
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371 }
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372
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373 if (wev->active && wev->ready) {
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374 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_LEVEL_EVENT)
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375 == NGX_ERROR)
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376 {
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377 return NGX_ERROR;
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378 }
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379
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380 return NGX_OK;
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381 }
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382
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383 } else if (ngx_event_flags & NGX_USE_ONESHOT_EVENT) {
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384
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385 /* event ports */
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386
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387 if (!wev->active) {
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388 if (ngx_add_event(wev, NGX_WRITE_EVENT, NGX_ONESHOT_EVENT)
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389 == NGX_ERROR)
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390 {
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391 return NGX_ERROR;
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392 }
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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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398 /* aio, iocp, rtsig */
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399
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400 return NGX_OK;
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401 }
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402
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403
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404 static ngx_int_t
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405 ngx_event_module_init(ngx_cycle_t *cycle)
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0
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406 {
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92
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407 void ***cf;
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408 ngx_event_conf_t *ecf;
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112
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409 ngx_core_conf_t *ccf;
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10
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410 #if !(NGX_WIN32)
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92
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411 char *shared;
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22
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412 size_t size;
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92
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413 ngx_int_t limit;
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414 struct rlimit rlmt;
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415 #endif
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22
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416
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417 cf = ngx_get_conf(cycle->conf_ctx, ngx_events_module);
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418
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419 if (cf == NULL) {
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|
420 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
421 "no \"events\" section in configuration");
|
|
|
422 return NGX_ERROR;
|
|
|
423 }
|
|
|
424
|
|
|
425 ecf = (*cf)[ngx_event_core_module.ctx_index];
|
|
|
426
|
|
110
|
427 ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
|
|
22
|
428 "using the \"%s\" event method", ecf->name);
|
|
|
429
|
|
112
|
430 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
431
|
|
112
|
432 ngx_timer_resolution = ccf->timer_resolution;
|
|
|
433
|
|
|
434 #if !(NGX_WIN32)
|
|
0
|
435
|
|
92
|
436 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
437 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
438 "getrlimit(RLIMIT_NOFILE) failed, ignored");
|
|
|
439
|
|
|
440 } else {
|
|
|
441 if (ecf->connections > (ngx_uint_t) rlmt.rlim_cur
|
|
|
442 && (ccf->rlimit_nofile == NGX_CONF_UNSET
|
|
|
443 || ecf->connections > (ngx_uint_t) ccf->rlimit_nofile))
|
|
|
444 {
|
|
|
445 limit = (ccf->rlimit_nofile == NGX_CONF_UNSET) ?
|
|
|
446 (ngx_int_t) rlmt.rlim_cur : ccf->rlimit_nofile;
|
|
|
447
|
|
|
448 ngx_log_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
449 "%ui worker_connections are more than "
|
|
|
450 "open file resource limit: %i",
|
|
|
451 ecf->connections, limit);
|
|
|
452 }
|
|
|
453 }
|
|
|
454
|
|
|
455
|
|
0
|
456 if (ccf->master == 0 || ngx_accept_mutex_ptr) {
|
|
|
457 return NGX_OK;
|
|
|
458 }
|
|
|
459
|
|
|
460
|
|
32
|
461 /* TODO: adjust cache line size, 128 is P4 cache line size */
|
|
0
|
462
|
|
|
463 size = 128 /* ngx_accept_mutex */
|
|
|
464 + 128; /* ngx_connection_counter */
|
|
|
465
|
|
|
466 #if (NGX_STAT_STUB)
|
|
|
467
|
|
|
468 size += 128 /* ngx_stat_accepted */
|
|
44
|
469 + 128 /* ngx_stat_handled */
|
|
0
|
470 + 128 /* ngx_stat_requests */
|
|
|
471 + 128 /* ngx_stat_active */
|
|
|
472 + 128 /* ngx_stat_reading */
|
|
|
473 + 128; /* ngx_stat_writing */
|
|
|
474
|
|
|
475 #endif
|
|
|
476
|
|
50
|
477 shared = ngx_create_shared_memory(size, cycle->log);
|
|
|
478 if (shared == NULL) {
|
|
0
|
479 return NGX_ERROR;
|
|
|
480 }
|
|
|
481
|
|
|
482 ngx_accept_mutex_ptr = (ngx_atomic_t *) shared;
|
|
|
483 ngx_connection_counter = (ngx_atomic_t *) (shared + 128);
|
|
|
484
|
|
|
485 #if (NGX_STAT_STUB)
|
|
|
486
|
|
|
487 ngx_stat_accepted = (ngx_atomic_t *) (shared + 2 * 128);
|
|
44
|
488 ngx_stat_handled = (ngx_atomic_t *) (shared + 3 * 128);
|
|
|
489 ngx_stat_requests = (ngx_atomic_t *) (shared + 4 * 128);
|
|
|
490 ngx_stat_active = (ngx_atomic_t *) (shared + 5 * 128);
|
|
|
491 ngx_stat_reading = (ngx_atomic_t *) (shared + 6 * 128);
|
|
|
492 ngx_stat_writing = (ngx_atomic_t *) (shared + 7 * 128);
|
|
0
|
493
|
|
|
494 #endif
|
|
|
495
|
|
112
|
496 *ngx_connection_counter = 1;
|
|
|
497
|
|
0
|
498 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
499 "counter: %p, %d",
|
|
0
|
500 ngx_connection_counter, *ngx_connection_counter);
|
|
|
501
|
|
92
|
502 #endif /* !(NGX_WIN32) */
|
|
0
|
503
|
|
|
504 return NGX_OK;
|
|
|
505 }
|
|
|
506
|
|
|
507
|
|
112
|
508 #if !(NGX_WIN32)
|
|
|
509
|
|
|
510 void
|
|
|
511 ngx_timer_signal_handler(int signo)
|
|
|
512 {
|
|
|
513 ngx_event_timer_alarm = 1;
|
|
|
514
|
|
|
515 ngx_time_update(0, 0);
|
|
|
516
|
|
|
517 #if 1
|
|
|
518 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "timer signal");
|
|
|
519 #endif
|
|
|
520 }
|
|
|
521
|
|
|
522 #endif
|
|
|
523
|
|
|
524
|
|
58
|
525 static ngx_int_t
|
|
|
526 ngx_event_process_init(ngx_cycle_t *cycle)
|
|
0
|
527 {
|
|
|
528 ngx_uint_t m, i;
|
|
|
529 ngx_event_t *rev, *wev;
|
|
92
|
530 ngx_listening_t *ls;
|
|
|
531 ngx_connection_t *c, *next, *old;
|
|
0
|
532 ngx_core_conf_t *ccf;
|
|
|
533 ngx_event_conf_t *ecf;
|
|
|
534 ngx_event_module_t *module;
|
|
10
|
535 #if (NGX_WIN32)
|
|
0
|
536 ngx_iocp_conf_t *iocpcf;
|
|
92
|
537 #else
|
|
|
538 struct rlimit rlmt;
|
|
112
|
539 struct sigaction sa;
|
|
|
540 struct itimerval itv;
|
|
0
|
541 #endif
|
|
|
542
|
|
|
543 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
|
544 ecf = ngx_event_get_conf(cycle->conf_ctx, ngx_event_core_module);
|
|
|
545
|
|
|
546 if (ngx_accept_mutex_ptr && ccf->worker_processes > 1 && ecf->accept_mutex)
|
|
|
547 {
|
|
|
548 ngx_accept_mutex = ngx_accept_mutex_ptr;
|
|
|
549 ngx_accept_mutex_held = 0;
|
|
|
550 ngx_accept_mutex_delay = ecf->accept_mutex_delay;
|
|
|
551 }
|
|
|
552
|
|
|
553 #if (NGX_THREADS)
|
|
50
|
554 ngx_posted_events_mutex = ngx_mutex_init(cycle->log, 0);
|
|
|
555 if (ngx_posted_events_mutex == NULL) {
|
|
0
|
556 return NGX_ERROR;
|
|
|
557 }
|
|
|
558 #endif
|
|
|
559
|
|
|
560 if (ngx_event_timer_init(cycle->log) == NGX_ERROR) {
|
|
|
561 return NGX_ERROR;
|
|
|
562 }
|
|
|
563
|
|
|
564 cycle->connection_n = ecf->connections;
|
|
|
565
|
|
|
566 for (m = 0; ngx_modules[m]; m++) {
|
|
|
567 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
568 continue;
|
|
|
569 }
|
|
|
570
|
|
|
571 if (ngx_modules[m]->ctx_index == ecf->use) {
|
|
|
572 module = ngx_modules[m]->ctx;
|
|
112
|
573 if (module->actions.init(cycle, ngx_timer_resolution) == NGX_ERROR)
|
|
|
574 {
|
|
0
|
575 /* fatal */
|
|
|
576 exit(2);
|
|
|
577 }
|
|
|
578 break;
|
|
|
579 }
|
|
|
580 }
|
|
|
581
|
|
92
|
582 #if !(NGX_WIN32)
|
|
|
583
|
|
112
|
584 if (ngx_timer_resolution && !(ngx_event_flags & NGX_USE_TIMER_EVENT)) {
|
|
|
585
|
|
|
586 ngx_memzero(&sa, sizeof(struct sigaction));
|
|
|
587 sa.sa_handler = ngx_timer_signal_handler;
|
|
|
588 sigemptyset(&sa.sa_mask);
|
|
|
589
|
|
|
590 if (sigaction(SIGALRM, &sa, NULL) == -1) {
|
|
|
591 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
592 "sigaction(SIGALRM) failed");
|
|
|
593 return NGX_ERROR;
|
|
|
594 }
|
|
|
595
|
|
|
596 itv.it_interval.tv_sec = ngx_timer_resolution / 1000;
|
|
|
597 itv.it_interval.tv_usec = (ngx_timer_resolution % 1000) * 1000;
|
|
|
598 itv.it_value.tv_sec = ngx_timer_resolution / 1000;
|
|
|
599 itv.it_value.tv_usec = (ngx_timer_resolution % 1000 ) * 1000;
|
|
|
600
|
|
|
601 if (setitimer(ITIMER_REAL, &itv, NULL) == -1) {
|
|
|
602 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
603 "setitimer() failed");
|
|
|
604 }
|
|
|
605 }
|
|
|
606
|
|
92
|
607 if (ngx_event_flags & NGX_USE_FD_EVENT) {
|
|
|
608
|
|
|
609 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) {
|
|
|
610 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
|
|
|
611 "getrlimit(RLIMIT_NOFILE) failed");
|
|
|
612 return NGX_ERROR;
|
|
|
613 }
|
|
|
614
|
|
|
615 cycle->files_n = (ngx_uint_t) rlmt.rlim_cur;
|
|
|
616
|
|
|
617 cycle->files = ngx_calloc(sizeof(ngx_connection_t *) * cycle->files_n,
|
|
|
618 cycle->log);
|
|
|
619 if (cycle->files == NULL) {
|
|
|
620 return NGX_ERROR;
|
|
|
621 }
|
|
|
622 }
|
|
|
623
|
|
|
624 #endif
|
|
|
625
|
|
110
|
626 cycle->connections = ngx_alloc(sizeof(ngx_connection_t) * ecf->connections,
|
|
0
|
627 cycle->log);
|
|
110
|
628 if (cycle->connections == NULL) {
|
|
0
|
629 return NGX_ERROR;
|
|
|
630 }
|
|
|
631
|
|
110
|
632 c = cycle->connections;
|
|
0
|
633
|
|
110
|
634 cycle->read_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
0
|
635 cycle->log);
|
|
110
|
636 if (cycle->read_events == NULL) {
|
|
0
|
637 return NGX_ERROR;
|
|
|
638 }
|
|
|
639
|
|
110
|
640 rev = cycle->read_events;
|
|
0
|
641 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
642 rev[i].closed = 1;
|
|
30
|
643 rev[i].instance = 1;
|
|
0
|
644 #if (NGX_THREADS)
|
|
|
645 rev[i].lock = &c[i].lock;
|
|
|
646 rev[i].own_lock = &c[i].lock;
|
|
|
647 #endif
|
|
|
648 }
|
|
|
649
|
|
110
|
650 cycle->write_events = ngx_alloc(sizeof(ngx_event_t) * ecf->connections,
|
|
30
|
651 cycle->log);
|
|
110
|
652 if (cycle->write_events == NULL) {
|
|
0
|
653 return NGX_ERROR;
|
|
|
654 }
|
|
|
655
|
|
110
|
656 wev = cycle->write_events;
|
|
0
|
657 for (i = 0; i < cycle->connection_n; i++) {
|
|
|
658 wev[i].closed = 1;
|
|
|
659 #if (NGX_THREADS)
|
|
|
660 wev[i].lock = &c[i].lock;
|
|
|
661 wev[i].own_lock = &c[i].lock;
|
|
|
662 #endif
|
|
|
663 }
|
|
|
664
|
|
92
|
665 i = cycle->connection_n;
|
|
|
666 next = NULL;
|
|
|
667
|
|
|
668 do {
|
|
|
669 i--;
|
|
|
670
|
|
|
671 c[i].data = next;
|
|
110
|
672 c[i].read = &cycle->read_events[i];
|
|
|
673 c[i].write = &cycle->write_events[i];
|
|
92
|
674 c[i].fd = (ngx_socket_t) -1;
|
|
|
675
|
|
|
676 next = &c[i];
|
|
|
677
|
|
|
678 #if (NGX_THREADS)
|
|
|
679 c[i].lock = 0;
|
|
|
680 #endif
|
|
|
681 } while (i);
|
|
|
682
|
|
|
683 cycle->free_connections = next;
|
|
|
684 cycle->free_connection_n = ecf->connections;
|
|
|
685
|
|
0
|
686 /* for each listening socket */
|
|
|
687
|
|
92
|
688 ls = cycle->listening.elts;
|
|
0
|
689 for (i = 0; i < cycle->listening.nelts; i++) {
|
|
|
690
|
|
92
|
691 c = ngx_get_connection(ls[i].fd, cycle->log);
|
|
0
|
692
|
|
92
|
693 if (c == NULL) {
|
|
|
694 return NGX_ERROR;
|
|
|
695 }
|
|
0
|
696
|
|
92
|
697 c->log = &ls[i].log;
|
|
|
698
|
|
|
699 c->listening = &ls[i];
|
|
|
700 ls[i].connection = c;
|
|
|
701
|
|
|
702 c->ctx = ls[i].ctx;
|
|
|
703 c->servers = ls[i].servers;
|
|
|
704
|
|
110
|
705 rev = c->read;
|
|
0
|
706
|
|
|
707 rev->log = c->log;
|
|
|
708 rev->accept = 1;
|
|
|
709
|
|
18
|
710 #if (NGX_HAVE_DEFERRED_ACCEPT)
|
|
92
|
711 rev->deferred_accept = ls[i].deferred_accept;
|
|
0
|
712 #endif
|
|
|
713
|
|
|
714 if (!(ngx_event_flags & NGX_USE_IOCP_EVENT)) {
|
|
92
|
715 if (ls[i].previous) {
|
|
0
|
716
|
|
|
717 /*
|
|
|
718 * delete the old accept events that were bound to
|
|
|
719 * the old cycle read events array
|
|
|
720 */
|
|
|
721
|
|
92
|
722 old = ls[i].previous->connection;
|
|
|
723
|
|
|
724 if (ngx_del_event(old->read, NGX_READ_EVENT, NGX_CLOSE_EVENT)
|
|
|
725 == NGX_ERROR)
|
|
0
|
726 {
|
|
|
727 return NGX_ERROR;
|
|
|
728 }
|
|
|
729
|
|
92
|
730 old->fd = (ngx_socket_t) -1;
|
|
0
|
731 }
|
|
|
732 }
|
|
|
733
|
|
10
|
734 #if (NGX_WIN32)
|
|
0
|
735
|
|
|
736 if (ngx_event_flags & NGX_USE_IOCP_EVENT) {
|
|
58
|
737 rev->handler = ngx_event_acceptex;
|
|
0
|
738
|
|
|
739 if (ngx_add_event(rev, 0, NGX_IOCP_ACCEPT) == NGX_ERROR) {
|
|
|
740 return NGX_ERROR;
|
|
|
741 }
|
|
|
742
|
|
92
|
743 ls[i].log.handler = ngx_acceptex_log_error;
|
|
|
744
|
|
0
|
745 iocpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_iocp_module);
|
|
92
|
746 if (ngx_event_post_acceptex(&ls[i], iocpcf->post_acceptex)
|
|
|
747 == NGX_ERROR)
|
|
0
|
748 {
|
|
|
749 return NGX_ERROR;
|
|
|
750 }
|
|
|
751
|
|
|
752 } else {
|
|
58
|
753 rev->handler = ngx_event_accept;
|
|
10
|
754
|
|
0
|
755 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
756 return NGX_ERROR;
|
|
|
757 }
|
|
|
758 }
|
|
|
759
|
|
|
760 #else
|
|
|
761
|
|
58
|
762 rev->handler = ngx_event_accept;
|
|
0
|
763
|
|
|
764 if (ngx_accept_mutex) {
|
|
|
765 continue;
|
|
|
766 }
|
|
|
767
|
|
|
768 if (ngx_event_flags & NGX_USE_RTSIG_EVENT) {
|
|
|
769 if (ngx_add_conn(c) == NGX_ERROR) {
|
|
|
770 return NGX_ERROR;
|
|
|
771 }
|
|
|
772
|
|
|
773 } else {
|
|
|
774 if (ngx_add_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
775 return NGX_ERROR;
|
|
|
776 }
|
|
|
777 }
|
|
|
778
|
|
|
779 #endif
|
|
92
|
780
|
|
0
|
781 }
|
|
|
782
|
|
|
783 return NGX_OK;
|
|
|
784 }
|
|
|
785
|
|
|
786
|
|
58
|
787 ngx_int_t
|
|
|
788 ngx_send_lowat(ngx_connection_t *c, size_t lowat)
|
|
2
|
789 {
|
|
|
790 int sndlowat;
|
|
|
791
|
|
4
|
792 #if (NGX_HAVE_LOWAT_EVENT)
|
|
2
|
793
|
|
4
|
794 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
2
|
795 c->write->available = lowat;
|
|
|
796 return NGX_OK;
|
|
|
797 }
|
|
|
798
|
|
|
799 #endif
|
|
|
800
|
|
|
801 if (lowat == 0 || c->sndlowat) {
|
|
|
802 return NGX_OK;
|
|
|
803 }
|
|
|
804
|
|
|
805 sndlowat = (int) lowat;
|
|
|
806
|
|
|
807 if (setsockopt(c->fd, SOL_SOCKET, SO_SNDLOWAT,
|
|
|
808 (const void *) &sndlowat, sizeof(int)) == -1)
|
|
|
809 {
|
|
|
810 ngx_connection_error(c, ngx_socket_errno,
|
|
|
811 "setsockopt(SO_SNDLOWAT) failed");
|
|
|
812 return NGX_ERROR;
|
|
|
813 }
|
|
|
814
|
|
|
815 c->sndlowat = 1;
|
|
|
816
|
|
|
817 return NGX_OK;
|
|
|
818 }
|
|
|
819
|
|
|
820
|
|
58
|
821 static char *
|
|
|
822 ngx_events_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
823 {
|
|
50
|
824 char *rv;
|
|
0
|
825 void ***ctx;
|
|
50
|
826 ngx_uint_t i;
|
|
0
|
827 ngx_conf_t pcf;
|
|
50
|
828 ngx_event_module_t *m;
|
|
0
|
829
|
|
|
830 /* count the number of the event modules and set up their indices */
|
|
|
831
|
|
|
832 ngx_event_max_module = 0;
|
|
50
|
833 for (i = 0; ngx_modules[i]; i++) {
|
|
|
834 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
835 continue;
|
|
|
836 }
|
|
|
837
|
|
50
|
838 ngx_modules[i]->ctx_index = ngx_event_max_module++;
|
|
0
|
839 }
|
|
|
840
|
|
50
|
841 ctx = ngx_pcalloc(cf->pool, sizeof(void *));
|
|
|
842 if (ctx == NULL) {
|
|
|
843 return NGX_CONF_ERROR;
|
|
|
844 }
|
|
0
|
845
|
|
50
|
846 *ctx = ngx_pcalloc(cf->pool, ngx_event_max_module * sizeof(void *));
|
|
|
847 if (*ctx == NULL) {
|
|
|
848 return NGX_CONF_ERROR;
|
|
|
849 }
|
|
0
|
850
|
|
|
851 *(void **) conf = ctx;
|
|
|
852
|
|
50
|
853 for (i = 0; ngx_modules[i]; i++) {
|
|
|
854 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
855 continue;
|
|
|
856 }
|
|
|
857
|
|
50
|
858 m = ngx_modules[i]->ctx;
|
|
0
|
859
|
|
50
|
860 if (m->create_conf) {
|
|
|
861 (*ctx)[ngx_modules[i]->ctx_index] = m->create_conf(cf->cycle);
|
|
|
862 if ((*ctx)[ngx_modules[i]->ctx_index] == NULL) {
|
|
|
863 return NGX_CONF_ERROR;
|
|
|
864 }
|
|
0
|
865 }
|
|
|
866 }
|
|
|
867
|
|
|
868 pcf = *cf;
|
|
|
869 cf->ctx = ctx;
|
|
|
870 cf->module_type = NGX_EVENT_MODULE;
|
|
|
871 cf->cmd_type = NGX_EVENT_CONF;
|
|
50
|
872
|
|
0
|
873 rv = ngx_conf_parse(cf, NULL);
|
|
50
|
874
|
|
0
|
875 *cf = pcf;
|
|
|
876
|
|
|
877 if (rv != NGX_CONF_OK)
|
|
|
878 return rv;
|
|
|
879
|
|
50
|
880 for (i = 0; ngx_modules[i]; i++) {
|
|
|
881 if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
|
|
0
|
882 continue;
|
|
|
883 }
|
|
|
884
|
|
50
|
885 m = ngx_modules[i]->ctx;
|
|
0
|
886
|
|
50
|
887 if (m->init_conf) {
|
|
|
888 rv = m->init_conf(cf->cycle, (*ctx)[ngx_modules[i]->ctx_index]);
|
|
0
|
889 if (rv != NGX_CONF_OK) {
|
|
|
890 return rv;
|
|
|
891 }
|
|
|
892 }
|
|
|
893 }
|
|
|
894
|
|
|
895 return NGX_CONF_OK;
|
|
|
896 }
|
|
|
897
|
|
|
898
|
|
58
|
899 static char *
|
|
|
900 ngx_event_connections(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
901 {
|
|
|
902 ngx_event_conf_t *ecf = conf;
|
|
|
903
|
|
|
904 ngx_str_t *value;
|
|
|
905
|
|
|
906 if (ecf->connections != NGX_CONF_UNSET_UINT) {
|
|
|
907 return "is duplicate" ;
|
|
|
908 }
|
|
|
909
|
|
|
910 value = cf->args->elts;
|
|
|
911 ecf->connections = ngx_atoi(value[1].data, value[1].len);
|
|
|
912 if (ecf->connections == (ngx_uint_t) NGX_ERROR) {
|
|
|
913 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
914 "invalid number \"%V\"", &value[1]);
|
|
0
|
915
|
|
|
916 return NGX_CONF_ERROR;
|
|
|
917 }
|
|
|
918
|
|
|
919 cf->cycle->connection_n = ecf->connections;
|
|
|
920
|
|
|
921 return NGX_CONF_OK;
|
|
|
922 }
|
|
|
923
|
|
|
924
|
|
58
|
925 static char *
|
|
|
926 ngx_event_use(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
927 {
|
|
|
928 ngx_event_conf_t *ecf = conf;
|
|
|
929
|
|
|
930 ngx_int_t m;
|
|
|
931 ngx_str_t *value;
|
|
|
932 ngx_event_conf_t *old_ecf;
|
|
|
933 ngx_event_module_t *module;
|
|
|
934
|
|
|
935 if (ecf->use != NGX_CONF_UNSET_UINT) {
|
|
|
936 return "is duplicate" ;
|
|
|
937 }
|
|
|
938
|
|
|
939 value = cf->args->elts;
|
|
|
940
|
|
|
941 if (cf->cycle->old_cycle->conf_ctx) {
|
|
|
942 old_ecf = ngx_event_get_conf(cf->cycle->old_cycle->conf_ctx,
|
|
|
943 ngx_event_core_module);
|
|
|
944 } else {
|
|
|
945 old_ecf = NULL;
|
|
|
946 }
|
|
|
947
|
|
|
948
|
|
|
949 for (m = 0; ngx_modules[m]; m++) {
|
|
|
950 if (ngx_modules[m]->type != NGX_EVENT_MODULE) {
|
|
|
951 continue;
|
|
|
952 }
|
|
|
953
|
|
|
954 module = ngx_modules[m]->ctx;
|
|
|
955 if (module->name->len == value[1].len) {
|
|
|
956 if (ngx_strcmp(module->name->data, value[1].data) == 0) {
|
|
|
957 ecf->use = ngx_modules[m]->ctx_index;
|
|
|
958 ecf->name = module->name->data;
|
|
|
959
|
|
|
960 if (ngx_process == NGX_PROCESS_SINGLE
|
|
|
961 && old_ecf
|
|
|
962 && old_ecf->use != ecf->use)
|
|
|
963 {
|
|
|
964 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
16
|
965 "when the server runs without a master process "
|
|
|
966 "the \"%V\" event type must be the same as "
|
|
|
967 "in previous configuration - \"%s\" "
|
|
|
968 "and it can not be changed on the fly, "
|
|
|
969 "to change it you need to stop server "
|
|
|
970 "and start it again",
|
|
|
971 &value[1], old_ecf->name);
|
|
0
|
972
|
|
|
973 return NGX_CONF_ERROR;
|
|
|
974 }
|
|
|
975
|
|
|
976 return NGX_CONF_OK;
|
|
|
977 }
|
|
|
978 }
|
|
|
979 }
|
|
|
980
|
|
|
981 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
982 "invalid event type \"%V\"", &value[1]);
|
|
0
|
983
|
|
|
984 return NGX_CONF_ERROR;
|
|
|
985 }
|
|
|
986
|
|
|
987
|
|
58
|
988 static char *
|
|
|
989 ngx_event_debug_connection(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
0
|
990 {
|
|
|
991 #if (NGX_DEBUG)
|
|
|
992 ngx_event_conf_t *ecf = conf;
|
|
|
993
|
|
|
994 in_addr_t *addr;
|
|
|
995 ngx_str_t *value;
|
|
|
996 struct hostent *h;
|
|
|
997
|
|
|
998 value = cf->args->elts;
|
|
|
999
|
|
|
1000 /* AF_INET only */
|
|
|
1001
|
|
50
|
1002 addr = ngx_array_push(&ecf->debug_connection);
|
|
|
1003 if (addr == NULL) {
|
|
0
|
1004 return NGX_CONF_ERROR;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 *addr = inet_addr((char *) value[1].data);
|
|
|
1008
|
|
|
1009 if (*addr != INADDR_NONE) {
|
|
|
1010 return NGX_OK;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 h = gethostbyname((char *) value[1].data);
|
|
|
1014
|
|
|
1015 if (h == NULL || h->h_addr_list[0] == NULL) {
|
|
|
1016 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
10
|
1017 "host \"%s\" not found", value[1].data);
|
|
0
|
1018 return NGX_CONF_ERROR;
|
|
|
1019 }
|
|
|
1020
|
|
|
1021 *addr = *(in_addr_t *)(h->h_addr_list[0]);
|
|
|
1022
|
|
|
1023 #else
|
|
|
1024
|
|
|
1025 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
1026 "\"debug_connection\" is ignored, you need to rebuild "
|
|
|
1027 "nginx using --with-debug option to enable it");
|
|
|
1028
|
|
|
1029 #endif
|
|
|
1030
|
|
|
1031 return NGX_OK;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034
|
|
58
|
1035 static void *
|
|
|
1036 ngx_event_create_conf(ngx_cycle_t *cycle)
|
|
0
|
1037 {
|
|
|
1038 ngx_event_conf_t *ecf;
|
|
|
1039
|
|
50
|
1040 ecf = ngx_palloc(cycle->pool, sizeof(ngx_event_conf_t));
|
|
|
1041 if (ecf == NULL) {
|
|
|
1042 return NGX_CONF_ERROR;
|
|
|
1043 }
|
|
0
|
1044
|
|
|
1045 ecf->connections = NGX_CONF_UNSET_UINT;
|
|
|
1046 ecf->use = NGX_CONF_UNSET_UINT;
|
|
|
1047 ecf->multi_accept = NGX_CONF_UNSET;
|
|
|
1048 ecf->accept_mutex = NGX_CONF_UNSET;
|
|
|
1049 ecf->accept_mutex_delay = NGX_CONF_UNSET_MSEC;
|
|
|
1050 ecf->name = (void *) NGX_CONF_UNSET;
|
|
|
1051
|
|
|
1052 #if (NGX_DEBUG)
|
|
50
|
1053
|
|
|
1054 if (ngx_array_init(&ecf->debug_connection, cycle->pool, 4,
|
|
|
1055 sizeof(in_addr_t)) == NGX_ERROR)
|
|
|
1056 {
|
|
|
1057 return NGX_CONF_ERROR;
|
|
|
1058 }
|
|
|
1059
|
|
0
|
1060 #endif
|
|
|
1061
|
|
|
1062 return ecf;
|
|
|
1063 }
|
|
|
1064
|
|
|
1065
|
|
58
|
1066 static char *
|
|
|
1067 ngx_event_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
1068 {
|
|
|
1069 ngx_event_conf_t *ecf = conf;
|
|
16
|
1070
|
|
50
|
1071 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
|
1072 int fd;
|
|
|
1073 #endif
|
|
|
1074 #if (NGX_HAVE_RTSIG)
|
|
|
1075 ngx_uint_t rtsig;
|
|
|
1076 #endif
|
|
16
|
1077 ngx_int_t i, connections;
|
|
|
1078 ngx_module_t *module;
|
|
|
1079 ngx_core_conf_t *ccf;
|
|
|
1080 ngx_event_module_t *event_module;
|
|
|
1081
|
|
|
1082 connections = NGX_CONF_UNSET_UINT;
|
|
|
1083 module = NULL;
|
|
|
1084
|
|
18
|
1085 #if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
|
|
16
|
1086
|
|
|
1087 fd = epoll_create(100);
|
|
|
1088
|
|
|
1089 if (fd != -1) {
|
|
|
1090 close(fd);
|
|
|
1091 connections = DEFAULT_CONNECTIONS;
|
|
|
1092 module = &ngx_epoll_module;
|
|
|
1093
|
|
|
1094 } else if (ngx_errno != NGX_ENOSYS) {
|
|
|
1095 connections = DEFAULT_CONNECTIONS;
|
|
|
1096 module = &ngx_epoll_module;
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 #endif
|
|
|
1100
|
|
18
|
1101 #if (NGX_HAVE_RTSIG)
|
|
16
|
1102
|
|
|
1103 if (module == NULL) {
|
|
|
1104 connections = DEFAULT_CONNECTIONS;
|
|
|
1105 module = &ngx_rtsig_module;
|
|
|
1106 rtsig = 1;
|
|
50
|
1107
|
|
|
1108 } else {
|
|
|
1109 rtsig = 0;
|
|
16
|
1110 }
|
|
|
1111
|
|
|
1112 #endif
|
|
|
1113
|
|
18
|
1114 #if (NGX_HAVE_DEVPOLL)
|
|
16
|
1115
|
|
|
1116 connections = DEFAULT_CONNECTIONS;
|
|
|
1117 module = &ngx_devpoll_module;
|
|
|
1118
|
|
0
|
1119 #endif
|
|
|
1120
|
|
18
|
1121 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1122
|
|
16
|
1123 connections = DEFAULT_CONNECTIONS;
|
|
|
1124 module = &ngx_kqueue_module;
|
|
0
|
1125
|
|
16
|
1126 #endif
|
|
0
|
1127
|
|
18
|
1128 #if (NGX_HAVE_SELECT)
|
|
0
|
1129
|
|
16
|
1130 if (module == NULL) {
|
|
0
|
1131
|
|
50
|
1132 #if (NGX_WIN32 || FD_SETSIZE >= DEFAULT_CONNECTIONS)
|
|
16
|
1133 connections = DEFAULT_CONNECTIONS;
|
|
0
|
1134 #else
|
|
50
|
1135 connections = FD_SETSIZE;
|
|
16
|
1136 #endif
|
|
|
1137 module = &ngx_select_module;
|
|
|
1138 }
|
|
|
1139
|
|
0
|
1140 #endif
|
|
|
1141
|
|
16
|
1142 if (module == NULL) {
|
|
|
1143 for (i = 0; ngx_modules[i]; i++) {
|
|
|
1144 if (ngx_modules[i]->type == NGX_EVENT_MODULE) {
|
|
|
1145 event_module = ngx_modules[i]->ctx;
|
|
0
|
1146
|
|
16
|
1147 if (ngx_strcmp(event_module->name->data, event_core_name.data)
|
|
|
1148 == 0)
|
|
|
1149 {
|
|
|
1150 continue;
|
|
|
1151 }
|
|
0
|
1152
|
|
16
|
1153 module = ngx_modules[i];
|
|
|
1154 break;
|
|
0
|
1155 }
|
|
|
1156 }
|
|
|
1157 }
|
|
|
1158
|
|
16
|
1159 if (module == NULL) {
|
|
0
|
1160 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
|
|
|
1161 return NGX_CONF_ERROR;
|
|
|
1162 }
|
|
|
1163
|
|
16
|
1164 ngx_conf_init_unsigned_value(ecf->connections, connections);
|
|
|
1165 cycle->connection_n = ecf->connections;
|
|
0
|
1166
|
|
16
|
1167 ngx_conf_init_unsigned_value(ecf->use, module->ctx_index);
|
|
0
|
1168
|
|
16
|
1169 event_module = module->ctx;
|
|
|
1170 ngx_conf_init_ptr_value(ecf->name, event_module->name->data);
|
|
0
|
1171
|
|
|
1172 ngx_conf_init_value(ecf->multi_accept, 0);
|
|
|
1173 ngx_conf_init_value(ecf->accept_mutex, 1);
|
|
|
1174 ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);
|
|
|
1175
|
|
16
|
1176
|
|
50
|
1177 #if (NGX_HAVE_RTSIG)
|
|
|
1178
|
|
|
1179 if (!rtsig) {
|
|
|
1180 return NGX_CONF_OK;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 #endif
|
|
|
1184
|
|
|
1185 if (ecf->accept_mutex) {
|
|
16
|
1186 return NGX_CONF_OK;
|
|
0
|
1187 }
|
|
16
|
1188
|
|
|
1189 ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
|
|
0
|
1190
|
|
16
|
1191 if (ccf->worker_processes == 0) {
|
|
|
1192 return NGX_CONF_OK;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
|
|
|
1196 "the \"rtsig\" method requires \"accept_mutex\" to be on");
|
|
|
1197
|
|
|
1198 return NGX_CONF_ERROR;
|
|
0
|
1199 }
|
|
|
1200
|
|
|
1201
|
|
58
|
1202 static char *
|
|
|
1203 ngx_accept_mutex_check(ngx_conf_t *cf, void *post, void *data)
|
|
0
|
1204 {
|
|
|
1205 #if !(NGX_HAVE_ATOMIC_OPS)
|
|
|
1206
|
|
|
1207 ngx_flag_t *fp = data;
|
|
|
1208
|
|
|
1209 *fp = 0;
|
|
|
1210
|
|
|
1211 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
52
|
1212 "\"accept_mutex\" is not supported on this platform, "
|
|
|
1213 "ignored");
|
|
0
|
1214
|
|
|
1215 #endif
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|
|
1216
|
|
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1217 return NGX_CONF_OK;
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|
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1218 }
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