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 #include <ngx_kqueue_module.h>
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11
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12
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13 typedef struct {
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14 int changes;
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15 int events;
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16 } ngx_kqueue_conf_t;
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17
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18
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19 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle);
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20 static void ngx_kqueue_done(ngx_cycle_t *cycle);
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21 static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags);
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22 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags);
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23 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags);
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24 static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try);
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25 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle);
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26 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
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48
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27 struct kevent *kev);
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0
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28
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29 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
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30 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
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31
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32
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33 int ngx_kqueue = -1;
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34
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35 /*
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36 * The "change_list" should be declared as ngx_thread_volatile.
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37 * However, the use of the change_list is localized in kqueue functions and
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38 * is protected by the mutex so even the "icc -ipo" should not build the code
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39 * with the race condition. Thus we avoid the declaration to make a more
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40 * readable code.
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41 */
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42
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43 static struct kevent *change_list, *change_list0, *change_list1;
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44 static struct kevent *event_list;
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45 static int max_changes, nchanges, nevents;
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46
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47 #if (NGX_THREADS)
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48 static ngx_mutex_t *list_mutex;
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49 static ngx_mutex_t *kevent_mutex;
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50 #endif
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51
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52
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53
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54 static ngx_str_t kqueue_name = ngx_string("kqueue");
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55
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56 static ngx_command_t ngx_kqueue_commands[] = {
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57
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48
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58 { ngx_string("kqueue_changes"),
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59 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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60 ngx_conf_set_num_slot,
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61 0,
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62 offsetof(ngx_kqueue_conf_t, changes),
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63 NULL },
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0
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64
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48
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65 { ngx_string("kqueue_events"),
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66 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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67 ngx_conf_set_num_slot,
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68 0,
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69 offsetof(ngx_kqueue_conf_t, events),
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70 NULL },
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0
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71
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48
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72 ngx_null_command
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0
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73 };
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74
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75
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76 ngx_event_module_t ngx_kqueue_module_ctx = {
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77 &kqueue_name,
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78 ngx_kqueue_create_conf, /* create configuration */
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79 ngx_kqueue_init_conf, /* init configuration */
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80
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81 {
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82 ngx_kqueue_add_event, /* add an event */
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83 ngx_kqueue_del_event, /* delete an event */
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84 ngx_kqueue_add_event, /* enable an event */
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85 ngx_kqueue_del_event, /* disable an event */
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86 NULL, /* add an connection */
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87 NULL, /* delete an connection */
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88 ngx_kqueue_process_changes, /* process the changes */
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89 ngx_kqueue_process_events, /* process the events */
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90 ngx_kqueue_init, /* init the events */
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91 ngx_kqueue_done /* done the events */
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92 }
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93
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94 };
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95
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96 ngx_module_t ngx_kqueue_module = {
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58
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97 NGX_MODULE_V1,
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0
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98 &ngx_kqueue_module_ctx, /* module context */
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99 ngx_kqueue_commands, /* module directives */
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100 NGX_EVENT_MODULE, /* module type */
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90
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101 NULL, /* init master */
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0
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102 NULL, /* init module */
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90
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103 NULL, /* init process */
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104 NULL, /* init thread */
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105 NULL, /* exit thread */
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106 NULL, /* exit process */
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107 NULL, /* exit master */
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108 NGX_MODULE_V1_PADDING
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0
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109 };
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110
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111
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112
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48
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113 static ngx_int_t
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114 ngx_kqueue_init(ngx_cycle_t *cycle)
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0
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115 {
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116 struct timespec ts;
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117 ngx_kqueue_conf_t *kcf;
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118
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119 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
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120
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121 if (ngx_kqueue == -1) {
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122 ngx_kqueue = kqueue();
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123
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124 if (ngx_kqueue == -1) {
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125 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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126 "kqueue() failed");
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127 return NGX_ERROR;
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128 }
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129
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130 #if (NGX_THREADS)
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131
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50
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132 list_mutex = ngx_mutex_init(cycle->log, 0);
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133 if (list_mutex == NULL) {
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0
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134 return NGX_ERROR;
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135 }
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136
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50
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137 kevent_mutex = ngx_mutex_init(cycle->log, 0);
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138 if (kevent_mutex == NULL) {
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0
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139 return NGX_ERROR;
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140 }
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141
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142 #endif
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143 }
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144
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145 if (max_changes < kcf->changes) {
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146 if (nchanges) {
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147 ts.tv_sec = 0;
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148 ts.tv_nsec = 0;
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149
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150 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
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151 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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152 "kevent() failed");
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153 return NGX_ERROR;
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154 }
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155 nchanges = 0;
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156 }
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157
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158 if (change_list0) {
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159 ngx_free(change_list0);
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160 }
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161
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162 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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163 cycle->log);
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164 if (change_list0 == NULL) {
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165 return NGX_ERROR;
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166 }
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167
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168 if (change_list1) {
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169 ngx_free(change_list1);
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170 }
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171
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172 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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173 cycle->log);
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174 if (change_list1 == NULL) {
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175 return NGX_ERROR;
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176 }
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177
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178 change_list = change_list0;
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179 }
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180
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181 max_changes = kcf->changes;
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182
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183 if (nevents < kcf->events) {
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184 if (event_list) {
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185 ngx_free(event_list);
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186 }
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187
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188 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
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189 if (event_list == NULL) {
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190 return NGX_ERROR;
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191 }
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192 }
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193
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194 nevents = kcf->events;
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195
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196 ngx_io = ngx_os_io;
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197
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198 ngx_event_actions = ngx_kqueue_module_ctx.actions;
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199
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200 ngx_event_flags = NGX_USE_ONESHOT_EVENT
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58
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201 #if 1
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18
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202 #if (NGX_HAVE_CLEAR_EVENT)
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0
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203 |NGX_USE_CLEAR_EVENT
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204 #else
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205 |NGX_USE_LEVEL_EVENT
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206 #endif
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58
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207 #endif
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4
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208 #if (NGX_HAVE_LOWAT_EVENT)
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209 |NGX_USE_LOWAT_EVENT
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0
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210 #endif
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4
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211 |NGX_USE_KQUEUE_EVENT;
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0
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212
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213 return NGX_OK;
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214 }
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215
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216
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48
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217 static void
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218 ngx_kqueue_done(ngx_cycle_t *cycle)
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0
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219 {
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220 if (close(ngx_kqueue) == -1) {
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221 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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222 "kqueue close() failed");
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223 }
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224
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225 ngx_kqueue = -1;
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226
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227 #if (NGX_THREADS)
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228 ngx_mutex_destroy(kevent_mutex);
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229 ngx_mutex_destroy(list_mutex);
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230 #endif
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231
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232 ngx_free(change_list1);
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233 ngx_free(change_list0);
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234 ngx_free(event_list);
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235
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236 change_list1 = NULL;
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237 change_list0 = NULL;
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238 change_list = NULL;
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239 event_list = NULL;
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240 max_changes = 0;
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241 nchanges = 0;
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242 nevents = 0;
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243 }
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244
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245
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48
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246 static ngx_int_t
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247 ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
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0
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248 {
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249 ngx_int_t rc;
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250 ngx_event_t *e;
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251 ngx_connection_t *c;
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252
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253 ev->active = 1;
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254 ev->disabled = 0;
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255 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
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256
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257 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
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258 return NGX_ERROR;
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259 }
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260
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4
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261 #if 1
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262
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0
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263 if (nchanges > 0
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264 && ev->index < (u_int) nchanges
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265 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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266 == (uintptr_t) ev)
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267 {
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268 if (change_list[ev->index].flags == EV_DISABLE) {
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269
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270 /*
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271 * if the EV_DISABLE is still not passed to a kernel
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272 * we will not pass it
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273 */
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274
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275 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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276 "kevent activated: %d: ft:%d",
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277 ngx_event_ident(ev->data), event);
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278
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279 if (ev->index < (u_int) --nchanges) {
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4
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280 e = (ngx_event_t *)
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281 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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282 change_list[ev->index] = change_list[nchanges];
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283 e->index = ev->index;
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284 }
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285
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286 ngx_mutex_unlock(list_mutex);
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287
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288 return NGX_OK;
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289 }
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290
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291 c = ev->data;
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292
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293 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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294 "previous event on #%d were not passed in kernel", c->fd);
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295
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296 ngx_mutex_unlock(list_mutex);
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297
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298 return NGX_ERROR;
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299 }
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300
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4
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301 #endif
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302
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0
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303 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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304
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305 ngx_mutex_unlock(list_mutex);
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306
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307 return rc;
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308 }
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309
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310
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48
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311 static ngx_int_t
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312 ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
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0
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313 {
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314 ngx_int_t rc;
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315 ngx_event_t *e;
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316
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317 ev->active = 0;
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318 ev->disabled = 0;
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319
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320 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
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321 return NGX_ERROR;
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322 }
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323
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4
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324 #if 1
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325
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0
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326 if (nchanges > 0
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327 && ev->index < (u_int) nchanges
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328 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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329 == (uintptr_t) ev)
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330 {
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331 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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332 "kevent deleted: %d: ft:%d",
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333 ngx_event_ident(ev->data), event);
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334
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335 /* if the event is still not passed to a kernel we will not pass it */
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336
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337 if (ev->index < (u_int) --nchanges) {
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4
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338 e = (ngx_event_t *)
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339 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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340 change_list[ev->index] = change_list[nchanges];
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341 e->index = ev->index;
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342 }
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343
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344 ngx_mutex_unlock(list_mutex);
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345
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346 return NGX_OK;
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347 }
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348
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4
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349 #endif
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350
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0
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351 /*
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352 * when the file descriptor is closed the kqueue automatically deletes
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353 * its filters so we do not need to delete explicity the event
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354 * before the closing the file descriptor.
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355 */
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356
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357 if (flags & NGX_CLOSE_EVENT) {
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358 ngx_mutex_unlock(list_mutex);
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359 return NGX_OK;
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360 }
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361
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362 if (flags & NGX_DISABLE_EVENT) {
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363 ev->disabled = 1;
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364 }
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365
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366 rc = ngx_kqueue_set_event(ev, event,
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367 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
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368
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369 ngx_mutex_unlock(list_mutex);
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370
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371 return rc;
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372 }
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373
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374
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48
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375 static ngx_int_t
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376 ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
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0
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377 {
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378 struct kevent *kev;
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379 struct timespec ts;
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380 ngx_connection_t *c;
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381
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382 c = ev->data;
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383
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384 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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10
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385 "kevent set event: %d: ft:%d fl:%04Xd",
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0
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386 c->fd, filter, flags);
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387
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388 if (nchanges >= max_changes) {
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389 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
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390 "kqueue change list is filled up");
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391
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392 ts.tv_sec = 0;
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393 ts.tv_nsec = 0;
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394
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395 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
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396 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
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397 return NGX_ERROR;
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398 }
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399
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400 nchanges = 0;
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401 }
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402
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403 kev = &change_list[nchanges];
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404
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405 kev->ident = c->fd;
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406 kev->filter = filter;
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407 kev->flags = flags;
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38
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408 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
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0
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409
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410 if (filter == EVFILT_VNODE) {
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411 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
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412 |NOTE_ATTRIB|NOTE_RENAME
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413 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
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414 || __FreeBSD_version >= 500018
|
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415 |NOTE_REVOKE
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416 #endif
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417 ;
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418 kev->data = 0;
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419
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420 } else {
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4
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421 #if (NGX_HAVE_LOWAT_EVENT)
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0
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422 if (flags & NGX_LOWAT_EVENT) {
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423 kev->fflags = NOTE_LOWAT;
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424 kev->data = ev->available;
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425
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426 } else {
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427 kev->fflags = 0;
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428 kev->data = 0;
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429 }
|
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430 #else
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431 kev->fflags = 0;
|
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432 kev->data = 0;
|
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433 #endif
|
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434 }
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435
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436 ev->index = nchanges;
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437 nchanges++;
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438
|
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439 return NGX_OK;
|
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440 }
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441
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442
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48
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443 static ngx_int_t
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444 ngx_kqueue_process_events(ngx_cycle_t *cycle)
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0
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445 {
|
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446 int events, n;
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447 ngx_int_t i, instance;
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448 ngx_uint_t lock, accept_lock, expire;
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449 ngx_err_t err;
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450 ngx_msec_t timer;
|
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451 ngx_event_t *ev;
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452 ngx_epoch_msec_t delta;
|
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453 struct timeval tv;
|
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454 struct timespec ts, *tp;
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455
|
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456 for ( ;; ) {
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457 timer = ngx_event_find_timer();
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458
|
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459 #if (NGX_THREADS)
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460
|
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461 if (timer == NGX_TIMER_ERROR) {
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462 return NGX_ERROR;
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463 }
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464
|
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465 if (timer == NGX_TIMER_INFINITE || timer > 500) {
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466 timer = 500;
|
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467 break;
|
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468 }
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469
|
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470 #endif
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471
|
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472 if (timer != 0) {
|
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473 break;
|
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474 }
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475
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476 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
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477 "kevent expired timer");
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478
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479 ngx_event_expire_timers((ngx_msec_t)
|
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480 (ngx_elapsed_msec - ngx_old_elapsed_msec));
|
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481
|
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482 if (ngx_posted_events && ngx_threaded) {
|
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483 ngx_wakeup_worker_thread(cycle);
|
|
484 }
|
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485 }
|
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486
|
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487 ngx_old_elapsed_msec = ngx_elapsed_msec;
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488 expire = 1;
|
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489 accept_lock = 0;
|
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490
|
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491 if (ngx_accept_mutex) {
|
|
492 if (ngx_accept_disabled > 0) {
|
|
493 ngx_accept_disabled--;
|
|
494
|
|
495 } else {
|
|
496 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
497 return NGX_ERROR;
|
|
498 }
|
|
499
|
|
500 if (ngx_accept_mutex_held) {
|
|
501 accept_lock = 1;
|
|
502
|
|
503 } else if (timer == NGX_TIMER_INFINITE
|
|
504 || timer > ngx_accept_mutex_delay)
|
|
505 {
|
|
506 timer = ngx_accept_mutex_delay;
|
|
507 expire = 0;
|
|
508 }
|
|
509 }
|
|
510 }
|
|
511
|
|
512 if (ngx_threaded) {
|
|
513 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
514 ngx_accept_mutex_unlock();
|
|
515 return NGX_ERROR;
|
|
516 }
|
|
517
|
|
518 n = 0;
|
|
519
|
|
520 } else {
|
|
521 n = nchanges;
|
|
522 nchanges = 0;
|
|
523 }
|
|
524
|
|
525 if (timer == NGX_TIMER_INFINITE) {
|
|
526 tp = NULL;
|
|
527 expire = 0;
|
|
528
|
|
529 } else {
|
|
530 ts.tv_sec = timer / 1000;
|
|
531 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
532 tp = &ts;
|
|
533 }
|
|
534
|
|
535 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
536 "kevent timer: %d, changes: %d", timer, n);
|
|
537
|
|
538 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
539
|
|
540 if (events == -1) {
|
|
541 err = ngx_errno;
|
|
542 } else {
|
|
543 err = 0;
|
|
544 }
|
|
545
|
|
546 ngx_gettimeofday(&tv);
|
|
547 ngx_time_update(tv.tv_sec);
|
|
548
|
|
549 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
550 "kevent events: %d", events);
|
|
551
|
|
552 delta = ngx_elapsed_msec;
|
|
553 ngx_elapsed_msec = (ngx_epoch_msec_t) tv.tv_sec * 1000
|
|
554 + tv.tv_usec / 1000 - ngx_start_msec;
|
|
555
|
|
556 if (err) {
|
|
557 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
558 cycle->log, err, "kevent() failed");
|
|
559 ngx_accept_mutex_unlock();
|
|
560 return NGX_ERROR;
|
|
561 }
|
|
562
|
|
563 if (timer != NGX_TIMER_INFINITE) {
|
|
564 delta = ngx_elapsed_msec - delta;
|
|
565
|
|
566 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
567 "kevent timer: %d, delta: %d", timer, (int) delta);
|
|
568
|
|
569 } else {
|
|
570 if (events == 0) {
|
|
571 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
572 "kevent() returned no events without timeout");
|
|
573 ngx_accept_mutex_unlock();
|
|
574 return NGX_ERROR;
|
|
575 }
|
|
576 }
|
|
577
|
|
578 if (events > 0) {
|
|
579 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
580 ngx_accept_mutex_unlock();
|
|
581 return NGX_ERROR;
|
|
582 }
|
|
583
|
|
584 lock = 1;
|
|
585
|
|
586 } else {
|
|
587 lock =0;
|
|
588 }
|
|
589
|
|
590 for (i = 0; i < events; i++) {
|
|
591
|
|
592 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
593
|
|
594 if (event_list[i].flags & EV_ERROR) {
|
|
595 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
596 "kevent() error on %d", event_list[i].ident);
|
|
597 continue;
|
|
598 }
|
|
599
|
|
600 ev = (ngx_event_t *) event_list[i].udata;
|
|
601
|
|
602 switch (event_list[i].filter) {
|
|
603
|
|
604 case EVFILT_READ:
|
|
605 case EVFILT_WRITE:
|
|
606
|
|
607 instance = (uintptr_t) ev & 1;
|
|
608 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
609
|
|
610 if (ev->closed || ev->instance != instance) {
|
|
611
|
|
612 /*
|
|
613 * the stale event from a file descriptor
|
|
614 * that was just closed in this iteration
|
|
615 */
|
|
616
|
|
617 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
10
|
618 "kevent: stale event %p", ev);
|
0
|
619 continue;
|
|
620 }
|
|
621
|
|
622 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
623 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
624 }
|
|
625
|
58
|
626 if (ev->oneshot) {
|
|
627 ev->active = 0;
|
|
628 }
|
|
629
|
0
|
630 #if (NGX_THREADS)
|
|
631
|
|
632 if (ngx_threaded && !ev->accept) {
|
|
633 ev->posted_ready = 1;
|
|
634 ev->posted_available = event_list[i].data;
|
|
635
|
|
636 if (event_list[i].flags & EV_EOF) {
|
|
637 ev->posted_eof = 1;
|
|
638 ev->posted_errno = event_list[i].fflags;
|
|
639 }
|
|
640
|
|
641 ngx_post_event(ev);
|
|
642
|
|
643 continue;
|
|
644 }
|
|
645
|
|
646 #endif
|
|
647
|
|
648 ev->available = event_list[i].data;
|
|
649
|
|
650 if (event_list[i].flags & EV_EOF) {
|
|
651 ev->pending_eof = 1;
|
|
652 ev->kq_errno = event_list[i].fflags;
|
|
653 }
|
|
654
|
|
655 ev->ready = 1;
|
|
656
|
|
657 break;
|
|
658
|
|
659 case EVFILT_VNODE:
|
|
660 ev->kq_vnode = 1;
|
|
661
|
|
662 break;
|
|
663
|
|
664 case EVFILT_AIO:
|
|
665 ev->complete = 1;
|
|
666 ev->ready = 1;
|
|
667
|
|
668 break;
|
|
669
|
|
670 default:
|
|
671 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
672 "unexpected kevent() filter %d",
|
|
673 event_list[i].filter);
|
|
674 continue;
|
|
675 }
|
|
676
|
|
677 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
58
|
678 ev->handler(ev);
|
0
|
679 continue;
|
|
680 }
|
|
681
|
|
682 if (!ev->accept) {
|
|
683 ngx_post_event(ev);
|
|
684 continue;
|
|
685 }
|
|
686
|
|
687 if (ngx_accept_disabled > 0) {
|
|
688 continue;
|
|
689 }
|
|
690
|
|
691 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
692
|
58
|
693 ev->handler(ev);
|
0
|
694
|
|
695 if (ngx_accept_disabled > 0) {
|
|
696 ngx_accept_mutex_unlock();
|
|
697 accept_lock = 0;
|
|
698 }
|
|
699
|
|
700 if (i + 1 == events) {
|
|
701 lock = 0;
|
|
702 break;
|
|
703 }
|
|
704
|
|
705 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
706 if (accept_lock) {
|
|
707 ngx_accept_mutex_unlock();
|
|
708 }
|
|
709 return NGX_ERROR;
|
|
710 }
|
|
711 }
|
|
712
|
|
713 if (accept_lock) {
|
|
714 ngx_accept_mutex_unlock();
|
|
715 }
|
|
716
|
|
717 if (lock) {
|
|
718 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
719 }
|
|
720
|
|
721 if (expire && delta) {
|
|
722 ngx_event_expire_timers((ngx_msec_t) delta);
|
|
723 }
|
|
724
|
|
725 if (ngx_posted_events) {
|
|
726 if (ngx_threaded) {
|
|
727 ngx_wakeup_worker_thread(cycle);
|
|
728
|
|
729 } else {
|
|
730 ngx_event_process_posted(cycle);
|
|
731 }
|
|
732 }
|
|
733
|
|
734 return NGX_OK;
|
|
735 }
|
|
736
|
|
737
|
48
|
738 static ngx_int_t
|
|
739 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
0
|
740 {
|
|
741 int n;
|
|
742 ngx_int_t rc;
|
|
743 ngx_err_t err;
|
|
744 struct timespec ts;
|
|
745 struct kevent *changes;
|
|
746
|
|
747 if (ngx_mutex_lock(kevent_mutex) == NGX_ERROR) {
|
|
748 return NGX_ERROR;
|
|
749 }
|
|
750
|
|
751 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
752 ngx_mutex_unlock(kevent_mutex);
|
|
753 return NGX_ERROR;
|
|
754 }
|
|
755
|
|
756 if (nchanges == 0) {
|
|
757 ngx_mutex_unlock(list_mutex);
|
|
758 ngx_mutex_unlock(kevent_mutex);
|
|
759 return NGX_OK;
|
|
760 }
|
|
761
|
|
762 changes = change_list;
|
|
763 if (change_list == change_list0) {
|
|
764 change_list = change_list1;
|
|
765 } else {
|
|
766 change_list = change_list0;
|
|
767 }
|
|
768
|
|
769 n = nchanges;
|
|
770 nchanges = 0;
|
|
771
|
|
772 ngx_mutex_unlock(list_mutex);
|
|
773
|
|
774 ts.tv_sec = 0;
|
|
775 ts.tv_nsec = 0;
|
|
776
|
|
777 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
778 "kevent changes: %d", n);
|
|
779
|
|
780 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
781 err = ngx_errno;
|
|
782 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
783 cycle->log, err, "kevent() failed");
|
|
784 rc = NGX_ERROR;
|
|
785
|
|
786 } else {
|
|
787 rc = NGX_OK;
|
|
788 }
|
|
789
|
|
790 ngx_mutex_unlock(kevent_mutex);
|
|
791
|
|
792 return rc;
|
|
793 }
|
|
794
|
|
795
|
48
|
796 static ngx_inline void
|
|
797 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
0
|
798 {
|
|
799 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
800 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
10
|
801 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
802 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
0
|
803 kev->ident, kev->filter,
|
|
804 kev->flags, kev->fflags,
|
|
805 kev->data, kev->udata);
|
|
806 }
|
|
807
|
|
808
|
48
|
809 static void *
|
|
810 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
0
|
811 {
|
|
812 ngx_kqueue_conf_t *kcf;
|
|
813
|
50
|
814 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
815 if (kcf == NULL) {
|
|
816 return NGX_CONF_ERROR;
|
|
817 }
|
0
|
818
|
|
819 kcf->changes = NGX_CONF_UNSET;
|
|
820 kcf->events = NGX_CONF_UNSET;
|
|
821
|
|
822 return kcf;
|
|
823 }
|
|
824
|
|
825
|
48
|
826 static char *
|
|
827 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
0
|
828 {
|
|
829 ngx_kqueue_conf_t *kcf = conf;
|
|
830
|
|
831 ngx_conf_init_value(kcf->changes, 512);
|
|
832 ngx_conf_init_value(kcf->events, 512);
|
|
833
|
|
834 return NGX_CONF_OK;
|
|
835 }
|