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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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4
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197 #if (NGX_HAVE_LOWAT_EVENT)
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198 |NGX_USE_LOWAT_EVENT
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0
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199 #endif
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4
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200 |NGX_USE_KQUEUE_EVENT;
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0
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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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4
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248 #if 1
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249
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0
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250 if (nchanges > 0
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251 && ev->index < (u_int) nchanges
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252 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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253 == (uintptr_t) ev)
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254 {
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255 if (change_list[ev->index].flags == EV_DISABLE) {
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256
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257 /*
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258 * if the EV_DISABLE is still not passed to a kernel
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259 * we will not pass it
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260 */
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261
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262 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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263 "kevent activated: %d: ft:%d",
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264 ngx_event_ident(ev->data), event);
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265
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266 if (ev->index < (u_int) --nchanges) {
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4
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267 e = (ngx_event_t *)
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268 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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269 change_list[ev->index] = change_list[nchanges];
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270 e->index = ev->index;
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271 }
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272
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273 ngx_mutex_unlock(list_mutex);
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274
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275 return NGX_OK;
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276 }
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277
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278 c = ev->data;
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279
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280 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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281 "previous event on #%d were not passed in kernel", c->fd);
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282
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283 ngx_mutex_unlock(list_mutex);
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284
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285 return NGX_ERROR;
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286 }
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287
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4
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288 #endif
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289
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0
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290 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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291
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292 ngx_mutex_unlock(list_mutex);
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293
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294 return rc;
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295 }
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296
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297
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298 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
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299 {
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300 ngx_int_t rc;
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301 ngx_event_t *e;
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302
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303 ev->active = 0;
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304 ev->disabled = 0;
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305
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306 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
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307 return NGX_ERROR;
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308 }
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309
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4
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310 #if 1
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311
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0
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312 if (nchanges > 0
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313 && ev->index < (u_int) nchanges
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314 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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315 == (uintptr_t) ev)
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316 {
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317 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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318 "kevent deleted: %d: ft:%d",
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319 ngx_event_ident(ev->data), event);
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320
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321 /* if the event is still not passed to a kernel we will not pass it */
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322
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323 if (ev->index < (u_int) --nchanges) {
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4
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324 e = (ngx_event_t *)
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325 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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326 change_list[ev->index] = change_list[nchanges];
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327 e->index = ev->index;
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328 }
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329
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330 ngx_mutex_unlock(list_mutex);
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331
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332 return NGX_OK;
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333 }
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334
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4
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335 #endif
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336
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0
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337 /*
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338 * when the file descriptor is closed the kqueue automatically deletes
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339 * its filters so we do not need to delete explicity the event
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340 * before the closing the file descriptor.
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341 */
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342
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343 if (flags & NGX_CLOSE_EVENT) {
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344 ngx_mutex_unlock(list_mutex);
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345 return NGX_OK;
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346 }
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347
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348 if (flags & NGX_DISABLE_EVENT) {
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349 ev->disabled = 1;
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350 }
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351
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352 rc = ngx_kqueue_set_event(ev, event,
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353 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
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354
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355 ngx_mutex_unlock(list_mutex);
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356
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357 return rc;
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358 }
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359
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360
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361 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
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362 {
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363 struct kevent *kev;
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364 struct timespec ts;
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365 ngx_connection_t *c;
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366
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367 c = ev->data;
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368
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369 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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370 "kevent set event: %d: ft:%d fl:%04X",
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371 c->fd, filter, flags);
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372
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373 if (nchanges >= max_changes) {
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374 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
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375 "kqueue change list is filled up");
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376
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377 ts.tv_sec = 0;
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378 ts.tv_nsec = 0;
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379
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380 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
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381 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
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382 return NGX_ERROR;
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383 }
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384
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385 nchanges = 0;
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386 }
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387
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388 kev = &change_list[nchanges];
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389
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390 kev->ident = c->fd;
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391 kev->filter = filter;
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392 kev->flags = flags;
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393 kev->udata = (void *) ((uintptr_t) ev | ev->instance);
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394
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395 if (filter == EVFILT_VNODE) {
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396 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
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397 |NOTE_ATTRIB|NOTE_RENAME
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398 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
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399 || __FreeBSD_version >= 500018
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400 |NOTE_REVOKE
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401 #endif
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402 ;
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403 kev->data = 0;
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404
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405 } else {
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4
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406 #if (NGX_HAVE_LOWAT_EVENT)
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0
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407 if (flags & NGX_LOWAT_EVENT) {
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408 kev->fflags = NOTE_LOWAT;
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409 kev->data = ev->available;
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410
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411 } else {
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412 kev->fflags = 0;
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413 kev->data = 0;
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414 }
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415 #else
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416 kev->fflags = 0;
|
|
|
417 kev->data = 0;
|
|
|
418 #endif
|
|
|
419 }
|
|
|
420
|
|
|
421 ev->index = nchanges;
|
|
|
422 nchanges++;
|
|
|
423
|
|
|
424 return NGX_OK;
|
|
|
425 }
|
|
|
426
|
|
|
427
|
|
|
428 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle)
|
|
|
429 {
|
|
|
430 int events, n;
|
|
|
431 ngx_int_t i, instance;
|
|
|
432 ngx_uint_t lock, accept_lock, expire;
|
|
|
433 ngx_err_t err;
|
|
|
434 ngx_msec_t timer;
|
|
|
435 ngx_event_t *ev;
|
|
|
436 ngx_epoch_msec_t delta;
|
|
|
437 struct timeval tv;
|
|
|
438 struct timespec ts, *tp;
|
|
|
439
|
|
|
440 for ( ;; ) {
|
|
|
441 timer = ngx_event_find_timer();
|
|
|
442
|
|
|
443 #if (NGX_THREADS)
|
|
|
444
|
|
|
445 if (timer == NGX_TIMER_ERROR) {
|
|
|
446 return NGX_ERROR;
|
|
|
447 }
|
|
|
448
|
|
|
449 if (timer == NGX_TIMER_INFINITE || timer > 500) {
|
|
|
450 timer = 500;
|
|
|
451 break;
|
|
|
452 }
|
|
|
453
|
|
|
454 #endif
|
|
|
455
|
|
|
456 if (timer != 0) {
|
|
|
457 break;
|
|
|
458 }
|
|
|
459
|
|
|
460 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
461 "kevent expired timer");
|
|
|
462
|
|
|
463 ngx_event_expire_timers((ngx_msec_t)
|
|
|
464 (ngx_elapsed_msec - ngx_old_elapsed_msec));
|
|
|
465
|
|
|
466 if (ngx_posted_events && ngx_threaded) {
|
|
|
467 ngx_wakeup_worker_thread(cycle);
|
|
|
468 }
|
|
|
469 }
|
|
|
470
|
|
|
471 ngx_old_elapsed_msec = ngx_elapsed_msec;
|
|
|
472 expire = 1;
|
|
|
473 accept_lock = 0;
|
|
|
474
|
|
|
475 if (ngx_accept_mutex) {
|
|
|
476 if (ngx_accept_disabled > 0) {
|
|
|
477 ngx_accept_disabled--;
|
|
|
478
|
|
|
479 } else {
|
|
|
480 if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
|
|
|
481 return NGX_ERROR;
|
|
|
482 }
|
|
|
483
|
|
|
484 if (ngx_accept_mutex_held) {
|
|
|
485 accept_lock = 1;
|
|
|
486
|
|
|
487 } else if (timer == NGX_TIMER_INFINITE
|
|
|
488 || timer > ngx_accept_mutex_delay)
|
|
|
489 {
|
|
|
490 timer = ngx_accept_mutex_delay;
|
|
|
491 expire = 0;
|
|
|
492 }
|
|
|
493 }
|
|
|
494 }
|
|
|
495
|
|
|
496 if (ngx_threaded) {
|
|
|
497 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
498 ngx_accept_mutex_unlock();
|
|
|
499 return NGX_ERROR;
|
|
|
500 }
|
|
|
501
|
|
|
502 n = 0;
|
|
|
503
|
|
|
504 } else {
|
|
|
505 n = nchanges;
|
|
|
506 nchanges = 0;
|
|
|
507 }
|
|
|
508
|
|
|
509 if (timer == NGX_TIMER_INFINITE) {
|
|
|
510 tp = NULL;
|
|
|
511 expire = 0;
|
|
|
512
|
|
|
513 } else {
|
|
|
514 ts.tv_sec = timer / 1000;
|
|
|
515 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
516 tp = &ts;
|
|
|
517 }
|
|
|
518
|
|
|
519 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
520 "kevent timer: %d, changes: %d", timer, n);
|
|
|
521
|
|
|
522 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
|
523
|
|
|
524 if (events == -1) {
|
|
|
525 err = ngx_errno;
|
|
|
526 } else {
|
|
|
527 err = 0;
|
|
|
528 }
|
|
|
529
|
|
|
530 ngx_gettimeofday(&tv);
|
|
|
531 ngx_time_update(tv.tv_sec);
|
|
|
532
|
|
|
533 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
534 "kevent events: %d", events);
|
|
|
535
|
|
|
536 delta = ngx_elapsed_msec;
|
|
|
537 ngx_elapsed_msec = (ngx_epoch_msec_t) tv.tv_sec * 1000
|
|
|
538 + tv.tv_usec / 1000 - ngx_start_msec;
|
|
|
539
|
|
|
540 if (err) {
|
|
|
541 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
542 cycle->log, err, "kevent() failed");
|
|
|
543 ngx_accept_mutex_unlock();
|
|
|
544 return NGX_ERROR;
|
|
|
545 }
|
|
|
546
|
|
|
547 if (timer != NGX_TIMER_INFINITE) {
|
|
|
548 delta = ngx_elapsed_msec - delta;
|
|
|
549
|
|
|
550 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
551 "kevent timer: %d, delta: %d", timer, (int) delta);
|
|
|
552
|
|
|
553 } else {
|
|
|
554 if (events == 0) {
|
|
|
555 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
556 "kevent() returned no events without timeout");
|
|
|
557 ngx_accept_mutex_unlock();
|
|
|
558 return NGX_ERROR;
|
|
|
559 }
|
|
|
560 }
|
|
|
561
|
|
|
562 if (events > 0) {
|
|
|
563 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
564 ngx_accept_mutex_unlock();
|
|
|
565 return NGX_ERROR;
|
|
|
566 }
|
|
|
567
|
|
|
568 lock = 1;
|
|
|
569
|
|
|
570 } else {
|
|
|
571 lock =0;
|
|
|
572 }
|
|
|
573
|
|
|
574 for (i = 0; i < events; i++) {
|
|
|
575
|
|
|
576 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
577
|
|
|
578 if (event_list[i].flags & EV_ERROR) {
|
|
|
579 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
|
580 "kevent() error on %d", event_list[i].ident);
|
|
|
581 continue;
|
|
|
582 }
|
|
|
583
|
|
|
584 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
585
|
|
|
586 switch (event_list[i].filter) {
|
|
|
587
|
|
|
588 case EVFILT_READ:
|
|
|
589 case EVFILT_WRITE:
|
|
|
590
|
|
|
591 instance = (uintptr_t) ev & 1;
|
|
|
592 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
593
|
|
|
594 if (ev->closed || ev->instance != instance) {
|
|
|
595
|
|
|
596 /*
|
|
|
597 * the stale event from a file descriptor
|
|
|
598 * that was just closed in this iteration
|
|
|
599 */
|
|
|
600
|
|
|
601 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
602 "kevent: stale event " PTR_FMT, ev);
|
|
|
603 continue;
|
|
|
604 }
|
|
|
605
|
|
|
606 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
607 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
608 }
|
|
|
609
|
|
|
610 #if (NGX_THREADS)
|
|
|
611
|
|
|
612 if (ngx_threaded && !ev->accept) {
|
|
|
613 ev->posted_ready = 1;
|
|
|
614 ev->posted_available = event_list[i].data;
|
|
|
615
|
|
|
616 if (event_list[i].flags & EV_EOF) {
|
|
|
617 ev->posted_eof = 1;
|
|
|
618 ev->posted_errno = event_list[i].fflags;
|
|
|
619 }
|
|
|
620
|
|
|
621 ngx_post_event(ev);
|
|
|
622
|
|
|
623 continue;
|
|
|
624 }
|
|
|
625
|
|
|
626 #endif
|
|
|
627
|
|
|
628 ev->available = event_list[i].data;
|
|
|
629
|
|
|
630 if (event_list[i].flags & EV_EOF) {
|
|
|
631 ev->pending_eof = 1;
|
|
|
632 ev->kq_errno = event_list[i].fflags;
|
|
|
633 }
|
|
|
634
|
|
|
635 ev->ready = 1;
|
|
|
636
|
|
|
637 break;
|
|
|
638
|
|
|
639 case EVFILT_VNODE:
|
|
|
640 ev->kq_vnode = 1;
|
|
|
641
|
|
|
642 break;
|
|
|
643
|
|
|
644 case EVFILT_AIO:
|
|
|
645 ev->complete = 1;
|
|
|
646 ev->ready = 1;
|
|
|
647
|
|
|
648 break;
|
|
|
649
|
|
|
650 default:
|
|
|
651 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
652 "unexpected kevent() filter %d",
|
|
|
653 event_list[i].filter);
|
|
|
654 continue;
|
|
|
655 }
|
|
|
656
|
|
|
657 if (!ngx_threaded && !ngx_accept_mutex_held) {
|
|
|
658 ev->event_handler(ev);
|
|
|
659 continue;
|
|
|
660 }
|
|
|
661
|
|
|
662 if (!ev->accept) {
|
|
|
663 ngx_post_event(ev);
|
|
|
664 continue;
|
|
|
665 }
|
|
|
666
|
|
|
667 if (ngx_accept_disabled > 0) {
|
|
|
668 continue;
|
|
|
669 }
|
|
|
670
|
|
|
671 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
672
|
|
|
673 ev->event_handler(ev);
|
|
|
674
|
|
|
675 if (ngx_accept_disabled > 0) {
|
|
|
676 ngx_accept_mutex_unlock();
|
|
|
677 accept_lock = 0;
|
|
|
678 }
|
|
|
679
|
|
|
680 if (i + 1 == events) {
|
|
|
681 lock = 0;
|
|
|
682 break;
|
|
|
683 }
|
|
|
684
|
|
|
685 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
|
|
|
686 if (accept_lock) {
|
|
|
687 ngx_accept_mutex_unlock();
|
|
|
688 }
|
|
|
689 return NGX_ERROR;
|
|
|
690 }
|
|
|
691 }
|
|
|
692
|
|
|
693 if (accept_lock) {
|
|
|
694 ngx_accept_mutex_unlock();
|
|
|
695 }
|
|
|
696
|
|
|
697 if (lock) {
|
|
|
698 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
|
699 }
|
|
|
700
|
|
|
701 if (expire && delta) {
|
|
|
702 ngx_event_expire_timers((ngx_msec_t) delta);
|
|
|
703 }
|
|
|
704
|
|
|
705 if (ngx_posted_events) {
|
|
|
706 if (ngx_threaded) {
|
|
|
707 ngx_wakeup_worker_thread(cycle);
|
|
|
708
|
|
|
709 } else {
|
|
|
710 ngx_event_process_posted(cycle);
|
|
|
711 }
|
|
|
712 }
|
|
|
713
|
|
|
714 return NGX_OK;
|
|
|
715 }
|
|
|
716
|
|
|
717
|
|
|
718 static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
|
719 {
|
|
|
720 int n;
|
|
|
721 ngx_int_t rc;
|
|
|
722 ngx_err_t err;
|
|
|
723 struct timespec ts;
|
|
|
724 struct kevent *changes;
|
|
|
725
|
|
|
726 if (ngx_mutex_lock(kevent_mutex) == NGX_ERROR) {
|
|
|
727 return NGX_ERROR;
|
|
|
728 }
|
|
|
729
|
|
|
730 if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
|
|
|
731 ngx_mutex_unlock(kevent_mutex);
|
|
|
732 return NGX_ERROR;
|
|
|
733 }
|
|
|
734
|
|
|
735 if (nchanges == 0) {
|
|
|
736 ngx_mutex_unlock(list_mutex);
|
|
|
737 ngx_mutex_unlock(kevent_mutex);
|
|
|
738 return NGX_OK;
|
|
|
739 }
|
|
|
740
|
|
|
741 changes = change_list;
|
|
|
742 if (change_list == change_list0) {
|
|
|
743 change_list = change_list1;
|
|
|
744 } else {
|
|
|
745 change_list = change_list0;
|
|
|
746 }
|
|
|
747
|
|
|
748 n = nchanges;
|
|
|
749 nchanges = 0;
|
|
|
750
|
|
|
751 ngx_mutex_unlock(list_mutex);
|
|
|
752
|
|
|
753 ts.tv_sec = 0;
|
|
|
754 ts.tv_nsec = 0;
|
|
|
755
|
|
|
756 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
757 "kevent changes: %d", n);
|
|
|
758
|
|
|
759 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
760 err = ngx_errno;
|
|
|
761 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
762 cycle->log, err, "kevent() failed");
|
|
|
763 rc = NGX_ERROR;
|
|
|
764
|
|
|
765 } else {
|
|
|
766 rc = NGX_OK;
|
|
|
767 }
|
|
|
768
|
|
|
769 ngx_mutex_unlock(kevent_mutex);
|
|
|
770
|
|
|
771 return rc;
|
|
|
772 }
|
|
|
773
|
|
|
774
|
|
|
775 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
|
776 {
|
|
|
777 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
778 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
|
779 "kevent: " PTR_FMT ": ft:%d fl:%04X ff:%08X d:%d ud:"
|
|
|
780 PTR_FMT:
|
|
|
781 "kevent: %d: ft:%d fl:%04X ff:%08X d:%d ud:" PTR_FMT,
|
|
|
782 kev->ident, kev->filter,
|
|
|
783 kev->flags, kev->fflags,
|
|
|
784 kev->data, kev->udata);
|
|
|
785 }
|
|
|
786
|
|
|
787
|
|
|
788 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
|
789 {
|
|
|
790 ngx_kqueue_conf_t *kcf;
|
|
|
791
|
|
|
792 ngx_test_null(kcf, ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t)),
|
|
|
793 NGX_CONF_ERROR);
|
|
|
794
|
|
|
795 kcf->changes = NGX_CONF_UNSET;
|
|
|
796 kcf->events = NGX_CONF_UNSET;
|
|
|
797
|
|
|
798 return kcf;
|
|
|
799 }
|
|
|
800
|
|
|
801
|
|
|
802 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
803 {
|
|
|
804 ngx_kqueue_conf_t *kcf = conf;
|
|
|
805
|
|
|
806 ngx_conf_init_value(kcf->changes, 512);
|
|
|
807 ngx_conf_init_value(kcf->events, 512);
|
|
|
808
|
|
|
809 return NGX_CONF_OK;
|
|
|
810 }
|
