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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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112
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19 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer);
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0
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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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112
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25 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
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26 ngx_uint_t flags);
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0
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27 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
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48
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28 struct kevent *kev);
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0
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29
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30 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
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31 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
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32
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33
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34 int ngx_kqueue = -1;
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35
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36 /*
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37 * The "change_list" should be declared as ngx_thread_volatile.
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38 * However, the use of the change_list is localized in kqueue functions and
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39 * is protected by the mutex so even the "icc -ipo" should not build the code
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40 * with the race condition. Thus we avoid the declaration to make a more
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41 * readable code.
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42 */
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43
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44 static struct kevent *change_list, *change_list0, *change_list1;
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45 static struct kevent *event_list;
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46 static int max_changes, nchanges, nevents;
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47
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48 #if (NGX_THREADS)
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49 static ngx_mutex_t *list_mutex;
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50 static ngx_mutex_t *kevent_mutex;
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51 #endif
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52
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53
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54
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55 static ngx_str_t kqueue_name = ngx_string("kqueue");
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56
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57 static ngx_command_t ngx_kqueue_commands[] = {
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58
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48
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59 { ngx_string("kqueue_changes"),
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60 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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61 ngx_conf_set_num_slot,
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62 0,
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63 offsetof(ngx_kqueue_conf_t, changes),
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64 NULL },
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0
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65
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48
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66 { ngx_string("kqueue_events"),
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67 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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68 ngx_conf_set_num_slot,
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69 0,
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70 offsetof(ngx_kqueue_conf_t, events),
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71 NULL },
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0
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72
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48
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73 ngx_null_command
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0
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74 };
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75
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76
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77 ngx_event_module_t ngx_kqueue_module_ctx = {
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78 &kqueue_name,
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79 ngx_kqueue_create_conf, /* create configuration */
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80 ngx_kqueue_init_conf, /* init configuration */
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81
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82 {
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83 ngx_kqueue_add_event, /* add an event */
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84 ngx_kqueue_del_event, /* delete an event */
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85 ngx_kqueue_add_event, /* enable an event */
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86 ngx_kqueue_del_event, /* disable an event */
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87 NULL, /* add an connection */
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88 NULL, /* delete an connection */
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89 ngx_kqueue_process_changes, /* process the changes */
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90 ngx_kqueue_process_events, /* process the events */
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91 ngx_kqueue_init, /* init the events */
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92 ngx_kqueue_done /* done the events */
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93 }
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94
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95 };
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96
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97 ngx_module_t ngx_kqueue_module = {
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58
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98 NGX_MODULE_V1,
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0
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99 &ngx_kqueue_module_ctx, /* module context */
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100 ngx_kqueue_commands, /* module directives */
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101 NGX_EVENT_MODULE, /* module type */
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90
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102 NULL, /* init master */
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0
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103 NULL, /* init module */
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90
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104 NULL, /* init process */
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105 NULL, /* init thread */
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106 NULL, /* exit thread */
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107 NULL, /* exit process */
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108 NULL, /* exit master */
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109 NGX_MODULE_V1_PADDING
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0
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110 };
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111
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112
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113
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48
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114 static ngx_int_t
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112
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115 ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
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0
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116 {
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114
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117 ngx_kqueue_conf_t *kcf;
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0
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118 struct timespec ts;
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114
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119 #if (NGX_HAVE_TIMER_EVENT)
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120 struct kevent kev;
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121 #endif
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0
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122
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123 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
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124
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125 if (ngx_kqueue == -1) {
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126 ngx_kqueue = kqueue();
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127
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128 if (ngx_kqueue == -1) {
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129 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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130 "kqueue() failed");
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131 return NGX_ERROR;
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132 }
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133
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134 #if (NGX_THREADS)
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135
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50
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136 list_mutex = ngx_mutex_init(cycle->log, 0);
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137 if (list_mutex == NULL) {
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0
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138 return NGX_ERROR;
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139 }
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140
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50
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141 kevent_mutex = ngx_mutex_init(cycle->log, 0);
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142 if (kevent_mutex == NULL) {
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0
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143 return NGX_ERROR;
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144 }
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145
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146 #endif
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147 }
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148
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149 if (max_changes < kcf->changes) {
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150 if (nchanges) {
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151 ts.tv_sec = 0;
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152 ts.tv_nsec = 0;
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153
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154 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
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155 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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156 "kevent() failed");
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157 return NGX_ERROR;
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158 }
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159 nchanges = 0;
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160 }
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161
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162 if (change_list0) {
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163 ngx_free(change_list0);
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164 }
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165
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166 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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167 cycle->log);
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168 if (change_list0 == NULL) {
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169 return NGX_ERROR;
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170 }
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171
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172 if (change_list1) {
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173 ngx_free(change_list1);
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174 }
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175
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176 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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177 cycle->log);
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178 if (change_list1 == NULL) {
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179 return NGX_ERROR;
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180 }
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181
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182 change_list = change_list0;
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183 }
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184
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185 max_changes = kcf->changes;
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186
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187 if (nevents < kcf->events) {
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188 if (event_list) {
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189 ngx_free(event_list);
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190 }
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191
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192 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
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193 if (event_list == NULL) {
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194 return NGX_ERROR;
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195 }
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196 }
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197
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112
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198 ngx_event_flags = 0;
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199
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200 #if (NGX_HAVE_TIMER_EVENT)
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201
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202 if (timer) {
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203 kev.ident = 0;
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204 kev.filter = EVFILT_TIMER;
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205 kev.flags = EV_ADD|EV_ENABLE;
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206 kev.fflags = 0;
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207 kev.data = timer;
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208 kev.udata = 0;
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209
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210 ts.tv_sec = 0;
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211 ts.tv_nsec = 0;
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212
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213 if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
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214 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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215 "kevent(EVFILT_TIMER) failed");
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216 return NGX_ERROR;
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217 }
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218
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219 ngx_event_flags |= NGX_USE_TIMER_EVENT;
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220 }
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221
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222 #endif
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223
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224 ngx_event_flags |= NGX_USE_ONESHOT_EVENT|NGX_USE_KQUEUE_EVENT;
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225
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226 #if (NGX_HAVE_CLEAR_EVENT)
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227 ngx_event_flags |= NGX_USE_CLEAR_EVENT;
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228 #else
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229 ngx_event_flags |= NGX_USE_LEVEL_EVENT;
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230 #endif
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231
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232 #if (NGX_HAVE_LOWAT_EVENT)
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233 ngx_event_flags |= NGX_USE_LOWAT_EVENT;
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234 #endif
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235
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0
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236 nevents = kcf->events;
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237
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238 ngx_io = ngx_os_io;
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239
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240 ngx_event_actions = ngx_kqueue_module_ctx.actions;
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241
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242 return NGX_OK;
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243 }
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244
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245
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48
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246 static void
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247 ngx_kqueue_done(ngx_cycle_t *cycle)
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0
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248 {
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249 if (close(ngx_kqueue) == -1) {
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250 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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251 "kqueue close() failed");
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252 }
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253
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254 ngx_kqueue = -1;
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255
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256 #if (NGX_THREADS)
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257 ngx_mutex_destroy(kevent_mutex);
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258 ngx_mutex_destroy(list_mutex);
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259 #endif
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260
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261 ngx_free(change_list1);
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262 ngx_free(change_list0);
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263 ngx_free(event_list);
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264
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265 change_list1 = NULL;
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266 change_list0 = NULL;
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267 change_list = NULL;
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268 event_list = NULL;
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269 max_changes = 0;
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270 nchanges = 0;
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271 nevents = 0;
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272 }
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273
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274
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48
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275 static ngx_int_t
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276 ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
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0
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277 {
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278 ngx_int_t rc;
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132
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279 #if 0
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0
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280 ngx_event_t *e;
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281 ngx_connection_t *c;
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132
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282 #endif
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0
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283
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284 ev->active = 1;
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285 ev->disabled = 0;
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286 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
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287
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112
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288 ngx_mutex_lock(list_mutex);
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0
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289
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132
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290 #if 0
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4
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291
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132
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292 if (ev->index < (u_int) nchanges
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0
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293 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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294 == (uintptr_t) ev)
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0
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295 {
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296 if (change_list[ev->index].flags == EV_DISABLE) {
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297
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298 /*
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299 * if the EV_DISABLE is still not passed to a kernel
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300 * we will not pass it
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301 */
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302
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303 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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304 "kevent activated: %d: ft:%d",
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305 ngx_event_ident(ev->data), event);
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306
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307 if (ev->index < (u_int) --nchanges) {
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4
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308 e = (ngx_event_t *)
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309 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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310 change_list[ev->index] = change_list[nchanges];
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311 e->index = ev->index;
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312 }
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313
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314 ngx_mutex_unlock(list_mutex);
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315
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316 return NGX_OK;
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317 }
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318
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319 c = ev->data;
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320
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321 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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322 "previous event on #%d were not passed in kernel", c->fd);
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323
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324 ngx_mutex_unlock(list_mutex);
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325
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326 return NGX_ERROR;
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327 }
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328
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4
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329 #endif
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330
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0
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331 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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332
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333 ngx_mutex_unlock(list_mutex);
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334
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335 return rc;
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336 }
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337
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338
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48
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339 static ngx_int_t
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340 ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
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0
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341 {
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342 ngx_int_t rc;
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343 ngx_event_t *e;
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344
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345 ev->active = 0;
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346 ev->disabled = 0;
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347
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112
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348 ngx_mutex_lock(list_mutex);
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0
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349
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132
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350 if (ev->index < (u_int) nchanges
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0
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351 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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352 == (uintptr_t) ev)
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0
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353 {
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354 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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355 "kevent deleted: %d: ft:%d",
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356 ngx_event_ident(ev->data), event);
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357
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358 /* if the event is still not passed to a kernel we will not pass it */
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359
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132
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360 nchanges--;
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361
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362 if (ev->index < (u_int) nchanges) {
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4
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363 e = (ngx_event_t *)
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364 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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365 change_list[ev->index] = change_list[nchanges];
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366 e->index = ev->index;
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367 }
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368
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369 ngx_mutex_unlock(list_mutex);
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370
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371 return NGX_OK;
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372 }
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373
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374 /*
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375 * when the file descriptor is closed the kqueue automatically deletes
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376 * its filters so we do not need to delete explicity the event
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377 * before the closing the file descriptor.
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378 */
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379
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380 if (flags & NGX_CLOSE_EVENT) {
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381 ngx_mutex_unlock(list_mutex);
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382 return NGX_OK;
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383 }
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384
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385 if (flags & NGX_DISABLE_EVENT) {
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386 ev->disabled = 1;
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387 }
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388
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389 rc = ngx_kqueue_set_event(ev, event,
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390 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
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391
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392 ngx_mutex_unlock(list_mutex);
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393
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394 return rc;
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395 }
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396
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397
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48
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398 static ngx_int_t
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399 ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
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0
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400 {
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401 struct kevent *kev;
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402 struct timespec ts;
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403 ngx_connection_t *c;
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404
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405 c = ev->data;
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406
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407 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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10
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408 "kevent set event: %d: ft:%d fl:%04Xd",
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|
0
|
409 c->fd, filter, flags);
|
|
|
410
|
|
|
411 if (nchanges >= max_changes) {
|
|
|
412 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
413 "kqueue change list is filled up");
|
|
|
414
|
|
|
415 ts.tv_sec = 0;
|
|
|
416 ts.tv_nsec = 0;
|
|
|
417
|
|
|
418 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
|
419 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
420 return NGX_ERROR;
|
|
|
421 }
|
|
|
422
|
|
|
423 nchanges = 0;
|
|
|
424 }
|
|
|
425
|
|
|
426 kev = &change_list[nchanges];
|
|
|
427
|
|
|
428 kev->ident = c->fd;
|
|
|
429 kev->filter = filter;
|
|
|
430 kev->flags = flags;
|
|
38
|
431 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
|
0
|
432
|
|
|
433 if (filter == EVFILT_VNODE) {
|
|
|
434 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
|
435 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
436 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
437 || __FreeBSD_version >= 500018
|
|
|
438 |NOTE_REVOKE
|
|
|
439 #endif
|
|
|
440 ;
|
|
|
441 kev->data = 0;
|
|
|
442
|
|
|
443 } else {
|
|
4
|
444 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
445 if (flags & NGX_LOWAT_EVENT) {
|
|
|
446 kev->fflags = NOTE_LOWAT;
|
|
|
447 kev->data = ev->available;
|
|
|
448
|
|
|
449 } else {
|
|
|
450 kev->fflags = 0;
|
|
|
451 kev->data = 0;
|
|
|
452 }
|
|
|
453 #else
|
|
|
454 kev->fflags = 0;
|
|
|
455 kev->data = 0;
|
|
|
456 #endif
|
|
|
457 }
|
|
|
458
|
|
|
459 ev->index = nchanges;
|
|
|
460 nchanges++;
|
|
|
461
|
|
|
462 return NGX_OK;
|
|
|
463 }
|
|
|
464
|
|
|
465
|
|
48
|
466 static ngx_int_t
|
|
112
|
467 ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
|
468 ngx_uint_t flags)
|
|
0
|
469 {
|
|
112
|
470 int events, n;
|
|
|
471 ngx_int_t i, instance;
|
|
|
472 ngx_uint_t level;
|
|
|
473 ngx_err_t err;
|
|
|
474 ngx_event_t *ev, **queue;
|
|
|
475 struct timespec ts, *tp;
|
|
0
|
476
|
|
|
477 if (ngx_threaded) {
|
|
|
478 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
479 return NGX_ERROR;
|
|
|
480 }
|
|
|
481
|
|
|
482 n = 0;
|
|
|
483
|
|
|
484 } else {
|
|
|
485 n = nchanges;
|
|
|
486 nchanges = 0;
|
|
|
487 }
|
|
|
488
|
|
|
489 if (timer == NGX_TIMER_INFINITE) {
|
|
|
490 tp = NULL;
|
|
|
491
|
|
|
492 } else {
|
|
168
|
493
|
|
172
|
494 ts.tv_sec = timer / 1000;
|
|
|
495 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
496
|
|
168
|
497 /*
|
|
172
|
498 * 64-bit Darwin kernel has the bug: kernel level ts.tv_nsec is
|
|
168
|
499 * the int32_t while user level ts.tv_nsec is the long (64-bit),
|
|
|
500 * so on the big endian PowerPC all nanoseconds are lost.
|
|
|
501 */
|
|
|
502
|
|
172
|
503 #if (NGX_DARWIN_KEVENT_BUG)
|
|
|
504 ts.tv_nsec <<= 32;
|
|
|
505 #endif
|
|
|
506
|
|
0
|
507 tp = &ts;
|
|
|
508 }
|
|
|
509
|
|
|
510 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
110
|
511 "kevent timer: %M, changes: %d", timer, n);
|
|
0
|
512
|
|
|
513 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
|
514
|
|
|
515 if (events == -1) {
|
|
|
516 err = ngx_errno;
|
|
|
517 } else {
|
|
|
518 err = 0;
|
|
|
519 }
|
|
|
520
|
|
112
|
521 if (flags & NGX_UPDATE_TIME) {
|
|
|
522 ngx_time_update(0, 0);
|
|
|
523 }
|
|
0
|
524
|
|
|
525 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
526 "kevent events: %d", events);
|
|
|
527
|
|
112
|
528 if (err) {
|
|
|
529 if (err == NGX_EINTR) {
|
|
|
530
|
|
|
531 if (ngx_event_timer_alarm) {
|
|
|
532 ngx_event_timer_alarm = 0;
|
|
|
533 return NGX_OK;
|
|
|
534 }
|
|
0
|
535
|
|
112
|
536 level = NGX_LOG_INFO;
|
|
|
537
|
|
|
538 } else {
|
|
|
539 level = NGX_LOG_ALERT;
|
|
|
540 }
|
|
|
541
|
|
|
542 ngx_log_error(level, cycle->log, err, "kevent() failed");
|
|
0
|
543 return NGX_ERROR;
|
|
|
544 }
|
|
|
545
|
|
116
|
546 if (events == 0) {
|
|
|
547 if (timer != NGX_TIMER_INFINITE) {
|
|
|
548 return NGX_OK;
|
|
|
549 }
|
|
0
|
550
|
|
116
|
551 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
552 "kevent() returned no events without timeout");
|
|
|
553 return NGX_ERROR;
|
|
112
|
554 }
|
|
0
|
555
|
|
112
|
556 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
557
|
|
|
558 for (i = 0; i < events; i++) {
|
|
|
559
|
|
|
560 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
561
|
|
|
562 if (event_list[i].flags & EV_ERROR) {
|
|
|
563 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
132
|
564 "kevent() error on %d filter:%d flags:%04Xd",
|
|
|
565 event_list[i].ident, event_list[i].filter,
|
|
|
566 event_list[i].flags);
|
|
0
|
567 continue;
|
|
|
568 }
|
|
|
569
|
|
112
|
570 #if (NGX_HAVE_TIMER_EVENT)
|
|
|
571
|
|
|
572 if (event_list[i].filter == EVFILT_TIMER) {
|
|
|
573 ngx_time_update(0, 0);
|
|
|
574 continue;
|
|
|
575 }
|
|
|
576
|
|
|
577 #endif
|
|
|
578
|
|
0
|
579 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
580
|
|
|
581 switch (event_list[i].filter) {
|
|
|
582
|
|
|
583 case EVFILT_READ:
|
|
|
584 case EVFILT_WRITE:
|
|
|
585
|
|
|
586 instance = (uintptr_t) ev & 1;
|
|
|
587 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
588
|
|
|
589 if (ev->closed || ev->instance != instance) {
|
|
|
590
|
|
|
591 /*
|
|
|
592 * the stale event from a file descriptor
|
|
|
593 * that was just closed in this iteration
|
|
|
594 */
|
|
|
595
|
|
|
596 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
597 "kevent: stale event %p", ev);
|
|
0
|
598 continue;
|
|
|
599 }
|
|
|
600
|
|
|
601 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
602 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
603 }
|
|
|
604
|
|
58
|
605 if (ev->oneshot) {
|
|
|
606 ev->active = 0;
|
|
|
607 }
|
|
|
608
|
|
0
|
609 #if (NGX_THREADS)
|
|
|
610
|
|
112
|
611 if ((flags & NGX_POST_THREAD_EVENTS) && !ev->accept) {
|
|
0
|
612 ev->posted_ready = 1;
|
|
|
613 ev->posted_available = event_list[i].data;
|
|
|
614
|
|
|
615 if (event_list[i].flags & EV_EOF) {
|
|
|
616 ev->posted_eof = 1;
|
|
|
617 ev->posted_errno = event_list[i].fflags;
|
|
|
618 }
|
|
|
619
|
|
112
|
620 ngx_locked_post_event(ev, &ngx_posted_events);
|
|
0
|
621
|
|
|
622 continue;
|
|
|
623 }
|
|
|
624
|
|
|
625 #endif
|
|
|
626
|
|
|
627 ev->available = event_list[i].data;
|
|
|
628
|
|
|
629 if (event_list[i].flags & EV_EOF) {
|
|
|
630 ev->pending_eof = 1;
|
|
|
631 ev->kq_errno = event_list[i].fflags;
|
|
|
632 }
|
|
|
633
|
|
|
634 ev->ready = 1;
|
|
|
635
|
|
|
636 break;
|
|
|
637
|
|
|
638 case EVFILT_VNODE:
|
|
|
639 ev->kq_vnode = 1;
|
|
|
640
|
|
|
641 break;
|
|
|
642
|
|
|
643 case EVFILT_AIO:
|
|
|
644 ev->complete = 1;
|
|
|
645 ev->ready = 1;
|
|
|
646
|
|
|
647 break;
|
|
|
648
|
|
|
649 default:
|
|
|
650 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
651 "unexpected kevent() filter %d",
|
|
|
652 event_list[i].filter);
|
|
|
653 continue;
|
|
|
654 }
|
|
|
655
|
|
112
|
656 if (flags & NGX_POST_EVENTS) {
|
|
|
657 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events:
|
|
|
658 &ngx_posted_events);
|
|
|
659 ngx_locked_post_event(ev, queue);
|
|
0
|
660
|
|
|
661 continue;
|
|
|
662 }
|
|
|
663
|
|
58
|
664 ev->handler(ev);
|
|
0
|
665 }
|
|
|
666
|
|
112
|
667 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
0
|
668
|
|
|
669 return NGX_OK;
|
|
|
670 }
|
|
|
671
|
|
|
672
|
|
48
|
673 static ngx_int_t
|
|
|
674 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
0
|
675 {
|
|
|
676 int n;
|
|
|
677 ngx_int_t rc;
|
|
|
678 ngx_err_t err;
|
|
|
679 struct timespec ts;
|
|
|
680 struct kevent *changes;
|
|
|
681
|
|
112
|
682 ngx_mutex_lock(kevent_mutex);
|
|
0
|
683
|
|
112
|
684 ngx_mutex_lock(list_mutex);
|
|
0
|
685
|
|
|
686 if (nchanges == 0) {
|
|
|
687 ngx_mutex_unlock(list_mutex);
|
|
|
688 ngx_mutex_unlock(kevent_mutex);
|
|
|
689 return NGX_OK;
|
|
|
690 }
|
|
|
691
|
|
|
692 changes = change_list;
|
|
|
693 if (change_list == change_list0) {
|
|
|
694 change_list = change_list1;
|
|
|
695 } else {
|
|
|
696 change_list = change_list0;
|
|
|
697 }
|
|
|
698
|
|
|
699 n = nchanges;
|
|
|
700 nchanges = 0;
|
|
|
701
|
|
|
702 ngx_mutex_unlock(list_mutex);
|
|
|
703
|
|
|
704 ts.tv_sec = 0;
|
|
|
705 ts.tv_nsec = 0;
|
|
|
706
|
|
|
707 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
708 "kevent changes: %d", n);
|
|
|
709
|
|
|
710 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
711 err = ngx_errno;
|
|
|
712 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
713 cycle->log, err, "kevent() failed");
|
|
|
714 rc = NGX_ERROR;
|
|
|
715
|
|
|
716 } else {
|
|
|
717 rc = NGX_OK;
|
|
|
718 }
|
|
|
719
|
|
|
720 ngx_mutex_unlock(kevent_mutex);
|
|
|
721
|
|
|
722 return rc;
|
|
|
723 }
|
|
|
724
|
|
|
725
|
|
48
|
726 static ngx_inline void
|
|
|
727 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
0
|
728 {
|
|
|
729 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
730 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
731 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
732 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
733 kev->ident, kev->filter,
|
|
|
734 kev->flags, kev->fflags,
|
|
|
735 kev->data, kev->udata);
|
|
|
736 }
|
|
|
737
|
|
|
738
|
|
48
|
739 static void *
|
|
|
740 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
0
|
741 {
|
|
|
742 ngx_kqueue_conf_t *kcf;
|
|
|
743
|
|
50
|
744 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
|
745 if (kcf == NULL) {
|
|
|
746 return NGX_CONF_ERROR;
|
|
|
747 }
|
|
0
|
748
|
|
|
749 kcf->changes = NGX_CONF_UNSET;
|
|
|
750 kcf->events = NGX_CONF_UNSET;
|
|
|
751
|
|
|
752 return kcf;
|
|
|
753 }
|
|
|
754
|
|
|
755
|
|
48
|
756 static char *
|
|
|
757 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
758 {
|
|
|
759 ngx_kqueue_conf_t *kcf = conf;
|
|
|
760
|
|
|
761 ngx_conf_init_value(kcf->changes, 512);
|
|
|
762 ngx_conf_init_value(kcf->events, 512);
|
|
|
763
|
|
|
764 return NGX_CONF_OK;
|
|
|
765 }
|
