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