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