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