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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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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_event.h>
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11
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12
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13 typedef struct {
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324
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14 ngx_uint_t changes;
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15 ngx_uint_t events;
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0
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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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324
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21 static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event,
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22 ngx_uint_t flags);
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23 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event,
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24 ngx_uint_t flags);
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25 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter,
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26 ngx_uint_t flags);
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0
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27 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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28 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
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29 ngx_uint_t flags);
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0
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30 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
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48
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31 struct kevent *kev);
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0
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32
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33 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
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34 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
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35
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36
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37 int ngx_kqueue = -1;
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38
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39 /*
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40 * The "change_list" should be declared as ngx_thread_volatile.
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41 * However, the use of the change_list is localized in kqueue functions and
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42 * is protected by the mutex so even the "icc -ipo" should not build the code
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43 * with the race condition. Thus we avoid the declaration to make a more
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44 * readable code.
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45 */
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46
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47 static struct kevent *change_list, *change_list0, *change_list1;
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48 static struct kevent *event_list;
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324
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49 static ngx_uint_t max_changes, nchanges, nevents;
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0
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50
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51 #if (NGX_THREADS)
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52 static ngx_mutex_t *list_mutex;
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53 static ngx_mutex_t *kevent_mutex;
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54 #endif
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55
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56
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57
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58 static ngx_str_t kqueue_name = ngx_string("kqueue");
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59
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60 static ngx_command_t ngx_kqueue_commands[] = {
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61
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48
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62 { ngx_string("kqueue_changes"),
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63 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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64 ngx_conf_set_num_slot,
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65 0,
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66 offsetof(ngx_kqueue_conf_t, changes),
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67 NULL },
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0
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68
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48
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69 { ngx_string("kqueue_events"),
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70 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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71 ngx_conf_set_num_slot,
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72 0,
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73 offsetof(ngx_kqueue_conf_t, events),
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74 NULL },
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0
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75
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48
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76 ngx_null_command
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0
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77 };
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78
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79
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80 ngx_event_module_t ngx_kqueue_module_ctx = {
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81 &kqueue_name,
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82 ngx_kqueue_create_conf, /* create configuration */
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83 ngx_kqueue_init_conf, /* init configuration */
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84
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85 {
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86 ngx_kqueue_add_event, /* add an event */
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87 ngx_kqueue_del_event, /* delete an event */
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88 ngx_kqueue_add_event, /* enable an event */
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89 ngx_kqueue_del_event, /* disable an event */
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90 NULL, /* add an connection */
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91 NULL, /* delete an connection */
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92 ngx_kqueue_process_changes, /* process the changes */
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93 ngx_kqueue_process_events, /* process the events */
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94 ngx_kqueue_init, /* init the events */
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95 ngx_kqueue_done /* done the events */
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96 }
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97
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98 };
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99
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100 ngx_module_t ngx_kqueue_module = {
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58
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101 NGX_MODULE_V1,
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0
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102 &ngx_kqueue_module_ctx, /* module context */
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103 ngx_kqueue_commands, /* module directives */
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104 NGX_EVENT_MODULE, /* module type */
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90
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105 NULL, /* init master */
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0
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106 NULL, /* init module */
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90
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107 NULL, /* init process */
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108 NULL, /* init thread */
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109 NULL, /* exit thread */
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110 NULL, /* exit process */
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111 NULL, /* exit master */
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112 NGX_MODULE_V1_PADDING
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0
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113 };
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114
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115
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48
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116 static ngx_int_t
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112
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117 ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
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0
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118 {
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114
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119 ngx_kqueue_conf_t *kcf;
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0
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120 struct timespec ts;
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114
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121 #if (NGX_HAVE_TIMER_EVENT)
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122 struct kevent kev;
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123 #endif
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0
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124
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125 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
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126
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127 if (ngx_kqueue == -1) {
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128 ngx_kqueue = kqueue();
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129
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130 if (ngx_kqueue == -1) {
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131 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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132 "kqueue() failed");
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133 return NGX_ERROR;
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134 }
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135
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136 #if (NGX_THREADS)
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137
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50
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138 list_mutex = ngx_mutex_init(cycle->log, 0);
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139 if (list_mutex == NULL) {
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0
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140 return NGX_ERROR;
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141 }
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142
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50
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143 kevent_mutex = ngx_mutex_init(cycle->log, 0);
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144 if (kevent_mutex == NULL) {
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0
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145 return NGX_ERROR;
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146 }
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147
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148 #endif
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149 }
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150
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151 if (max_changes < kcf->changes) {
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152 if (nchanges) {
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153 ts.tv_sec = 0;
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154 ts.tv_nsec = 0;
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155
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324
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156 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
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157 == -1)
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158 {
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0
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159 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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160 "kevent() failed");
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161 return NGX_ERROR;
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162 }
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163 nchanges = 0;
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164 }
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165
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166 if (change_list0) {
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167 ngx_free(change_list0);
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168 }
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169
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170 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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171 cycle->log);
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172 if (change_list0 == NULL) {
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173 return NGX_ERROR;
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174 }
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175
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176 if (change_list1) {
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177 ngx_free(change_list1);
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178 }
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179
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180 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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181 cycle->log);
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182 if (change_list1 == NULL) {
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183 return NGX_ERROR;
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184 }
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185
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186 change_list = change_list0;
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187 }
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188
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189 max_changes = kcf->changes;
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190
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191 if (nevents < kcf->events) {
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192 if (event_list) {
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193 ngx_free(event_list);
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194 }
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195
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196 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
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197 if (event_list == NULL) {
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198 return NGX_ERROR;
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199 }
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200 }
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201
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332
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202 ngx_event_flags = NGX_USE_ONESHOT_EVENT
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203 |NGX_USE_KQUEUE_EVENT
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204 |NGX_USE_VNODE_EVENT;
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112
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205
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206 #if (NGX_HAVE_TIMER_EVENT)
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207
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208 if (timer) {
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209 kev.ident = 0;
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210 kev.filter = EVFILT_TIMER;
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211 kev.flags = EV_ADD|EV_ENABLE;
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212 kev.fflags = 0;
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213 kev.data = timer;
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214 kev.udata = 0;
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215
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216 ts.tv_sec = 0;
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217 ts.tv_nsec = 0;
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218
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219 if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
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220 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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221 "kevent(EVFILT_TIMER) failed");
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222 return NGX_ERROR;
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223 }
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224
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225 ngx_event_flags |= NGX_USE_TIMER_EVENT;
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226 }
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227
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228 #endif
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229
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230 #if (NGX_HAVE_CLEAR_EVENT)
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231 ngx_event_flags |= NGX_USE_CLEAR_EVENT;
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232 #else
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233 ngx_event_flags |= NGX_USE_LEVEL_EVENT;
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234 #endif
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235
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236 #if (NGX_HAVE_LOWAT_EVENT)
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237 ngx_event_flags |= NGX_USE_LOWAT_EVENT;
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238 #endif
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239
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0
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240 nevents = kcf->events;
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241
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242 ngx_io = ngx_os_io;
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243
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244 ngx_event_actions = ngx_kqueue_module_ctx.actions;
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245
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246 return NGX_OK;
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247 }
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248
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249
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48
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250 static void
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251 ngx_kqueue_done(ngx_cycle_t *cycle)
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0
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252 {
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253 if (close(ngx_kqueue) == -1) {
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254 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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255 "kqueue close() failed");
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256 }
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257
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258 ngx_kqueue = -1;
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259
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260 #if (NGX_THREADS)
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261 ngx_mutex_destroy(kevent_mutex);
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262 ngx_mutex_destroy(list_mutex);
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263 #endif
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264
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265 ngx_free(change_list1);
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266 ngx_free(change_list0);
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267 ngx_free(event_list);
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268
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269 change_list1 = NULL;
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270 change_list0 = NULL;
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271 change_list = NULL;
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272 event_list = NULL;
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273 max_changes = 0;
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274 nchanges = 0;
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275 nevents = 0;
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276 }
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277
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278
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48
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279 static ngx_int_t
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324
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280 ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
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0
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281 {
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282 ngx_int_t rc;
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132
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283 #if 0
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0
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284 ngx_event_t *e;
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285 ngx_connection_t *c;
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132
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286 #endif
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0
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287
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288 ev->active = 1;
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289 ev->disabled = 0;
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290 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
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291
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112
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292 ngx_mutex_lock(list_mutex);
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0
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293
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132
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294 #if 0
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4
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295
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324
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296 if (ev->index < nchanges
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0
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297 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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298 == (uintptr_t) ev)
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0
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299 {
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300 if (change_list[ev->index].flags == EV_DISABLE) {
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301
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302 /*
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303 * if the EV_DISABLE is still not passed to a kernel
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304 * we will not pass it
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305 */
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306
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307 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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324
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308 "kevent activated: %d: ft:%i",
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0
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309 ngx_event_ident(ev->data), event);
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310
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324
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311 if (ev->index < --nchanges) {
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4
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312 e = (ngx_event_t *)
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313 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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314 change_list[ev->index] = change_list[nchanges];
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315 e->index = ev->index;
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316 }
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317
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318 ngx_mutex_unlock(list_mutex);
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319
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320 return NGX_OK;
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321 }
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322
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323 c = ev->data;
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324
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325 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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326 "previous event on #%d were not passed in kernel", c->fd);
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327
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328 ngx_mutex_unlock(list_mutex);
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329
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330 return NGX_ERROR;
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331 }
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332
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4
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333 #endif
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334
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0
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335 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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336
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337 ngx_mutex_unlock(list_mutex);
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338
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339 return rc;
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340 }
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341
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342
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48
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343 static ngx_int_t
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324
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344 ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
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0
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345 {
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346 ngx_int_t rc;
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347 ngx_event_t *e;
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348
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349 ev->active = 0;
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350 ev->disabled = 0;
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351
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112
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352 ngx_mutex_lock(list_mutex);
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0
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353
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324
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354 if (ev->index < nchanges
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0
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355 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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356 == (uintptr_t) ev)
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0
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357 {
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358 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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324
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359 "kevent deleted: %d: ft:%i",
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0
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360 ngx_event_ident(ev->data), event);
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361
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362 /* if the event is still not passed to a kernel we will not pass it */
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363
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132
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364 nchanges--;
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365
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324
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366 if (ev->index < nchanges) {
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4
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367 e = (ngx_event_t *)
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368 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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369 change_list[ev->index] = change_list[nchanges];
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370 e->index = ev->index;
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371 }
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372
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373 ngx_mutex_unlock(list_mutex);
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374
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375 return NGX_OK;
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376 }
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377
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378 /*
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379 * when the file descriptor is closed the kqueue automatically deletes
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670
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380 * its filters so we do not need to delete explicitly the event
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0
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381 * before the closing the file descriptor.
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382 */
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383
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384 if (flags & NGX_CLOSE_EVENT) {
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385 ngx_mutex_unlock(list_mutex);
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386 return NGX_OK;
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387 }
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388
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389 if (flags & NGX_DISABLE_EVENT) {
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390 ev->disabled = 1;
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332
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391
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392 } else {
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393 flags |= EV_DELETE;
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0
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394 }
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395
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332
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396 rc = ngx_kqueue_set_event(ev, event, flags);
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0
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397
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398 ngx_mutex_unlock(list_mutex);
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399
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400 return rc;
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401 }
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402
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403
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48
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404 static ngx_int_t
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324
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405 ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter, ngx_uint_t flags)
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|
0
|
406 {
|
|
|
407 struct kevent *kev;
|
|
|
408 struct timespec ts;
|
|
|
409 ngx_connection_t *c;
|
|
|
410
|
|
|
411 c = ev->data;
|
|
|
412
|
|
332
|
413 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
324
|
414 "kevent set event: %d: ft:%i fl:%04Xi",
|
|
0
|
415 c->fd, filter, flags);
|
|
|
416
|
|
|
417 if (nchanges >= max_changes) {
|
|
|
418 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
419 "kqueue change list is filled up");
|
|
|
420
|
|
|
421 ts.tv_sec = 0;
|
|
|
422 ts.tv_nsec = 0;
|
|
|
423
|
|
324
|
424 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
|
|
|
425 == -1)
|
|
|
426 {
|
|
0
|
427 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
428 return NGX_ERROR;
|
|
|
429 }
|
|
|
430
|
|
|
431 nchanges = 0;
|
|
|
432 }
|
|
|
433
|
|
|
434 kev = &change_list[nchanges];
|
|
|
435
|
|
|
436 kev->ident = c->fd;
|
|
324
|
437 kev->filter = (short) filter;
|
|
|
438 kev->flags = (u_short) flags;
|
|
38
|
439 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
|
0
|
440
|
|
|
441 if (filter == EVFILT_VNODE) {
|
|
|
442 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
|
443 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
444 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
445 || __FreeBSD_version >= 500018
|
|
|
446 |NOTE_REVOKE
|
|
|
447 #endif
|
|
378
|
448 ;
|
|
0
|
449 kev->data = 0;
|
|
|
450
|
|
|
451 } else {
|
|
4
|
452 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
453 if (flags & NGX_LOWAT_EVENT) {
|
|
|
454 kev->fflags = NOTE_LOWAT;
|
|
|
455 kev->data = ev->available;
|
|
|
456
|
|
|
457 } else {
|
|
|
458 kev->fflags = 0;
|
|
|
459 kev->data = 0;
|
|
|
460 }
|
|
|
461 #else
|
|
|
462 kev->fflags = 0;
|
|
|
463 kev->data = 0;
|
|
|
464 #endif
|
|
|
465 }
|
|
|
466
|
|
|
467 ev->index = nchanges;
|
|
|
468 nchanges++;
|
|
|
469
|
|
332
|
470 if (flags & NGX_FLUSH_EVENT) {
|
|
|
471 ts.tv_sec = 0;
|
|
|
472 ts.tv_nsec = 0;
|
|
|
473
|
|
|
474 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "kevent flush");
|
|
|
475
|
|
|
476 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
|
|
|
477 == -1)
|
|
|
478 {
|
|
|
479 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
480 return NGX_ERROR;
|
|
|
481 }
|
|
|
482
|
|
|
483 nchanges = 0;
|
|
|
484 }
|
|
|
485
|
|
0
|
486 return NGX_OK;
|
|
|
487 }
|
|
|
488
|
|
|
489
|
|
48
|
490 static ngx_int_t
|
|
112
|
491 ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
|
492 ngx_uint_t flags)
|
|
0
|
493 {
|
|
112
|
494 int events, n;
|
|
|
495 ngx_int_t i, instance;
|
|
|
496 ngx_uint_t level;
|
|
|
497 ngx_err_t err;
|
|
|
498 ngx_event_t *ev, **queue;
|
|
|
499 struct timespec ts, *tp;
|
|
0
|
500
|
|
|
501 if (ngx_threaded) {
|
|
|
502 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
503 return NGX_ERROR;
|
|
|
504 }
|
|
|
505
|
|
|
506 n = 0;
|
|
|
507
|
|
|
508 } else {
|
|
324
|
509 n = (int) nchanges;
|
|
0
|
510 nchanges = 0;
|
|
|
511 }
|
|
|
512
|
|
|
513 if (timer == NGX_TIMER_INFINITE) {
|
|
|
514 tp = NULL;
|
|
|
515
|
|
|
516 } else {
|
|
168
|
517
|
|
172
|
518 ts.tv_sec = timer / 1000;
|
|
|
519 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
520
|
|
168
|
521 /*
|
|
172
|
522 * 64-bit Darwin kernel has the bug: kernel level ts.tv_nsec is
|
|
168
|
523 * the int32_t while user level ts.tv_nsec is the long (64-bit),
|
|
|
524 * so on the big endian PowerPC all nanoseconds are lost.
|
|
|
525 */
|
|
|
526
|
|
172
|
527 #if (NGX_DARWIN_KEVENT_BUG)
|
|
|
528 ts.tv_nsec <<= 32;
|
|
|
529 #endif
|
|
|
530
|
|
0
|
531 tp = &ts;
|
|
|
532 }
|
|
|
533
|
|
|
534 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
110
|
535 "kevent timer: %M, changes: %d", timer, n);
|
|
0
|
536
|
|
324
|
537 events = kevent(ngx_kqueue, change_list, n, event_list, (int) nevents, tp);
|
|
0
|
538
|
|
518
|
539 err = (events == -1) ? ngx_errno : 0;
|
|
0
|
540
|
|
566
|
541 if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) {
|
|
|
542 ngx_time_update();
|
|
112
|
543 }
|
|
0
|
544
|
|
|
545 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
546 "kevent events: %d", events);
|
|
|
547
|
|
112
|
548 if (err) {
|
|
|
549 if (err == NGX_EINTR) {
|
|
|
550
|
|
|
551 if (ngx_event_timer_alarm) {
|
|
|
552 ngx_event_timer_alarm = 0;
|
|
|
553 return NGX_OK;
|
|
|
554 }
|
|
0
|
555
|
|
112
|
556 level = NGX_LOG_INFO;
|
|
|
557
|
|
|
558 } else {
|
|
|
559 level = NGX_LOG_ALERT;
|
|
|
560 }
|
|
|
561
|
|
|
562 ngx_log_error(level, cycle->log, err, "kevent() failed");
|
|
0
|
563 return NGX_ERROR;
|
|
|
564 }
|
|
|
565
|
|
116
|
566 if (events == 0) {
|
|
|
567 if (timer != NGX_TIMER_INFINITE) {
|
|
|
568 return NGX_OK;
|
|
|
569 }
|
|
0
|
570
|
|
116
|
571 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
572 "kevent() returned no events without timeout");
|
|
|
573 return NGX_ERROR;
|
|
112
|
574 }
|
|
0
|
575
|
|
112
|
576 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
577
|
|
|
578 for (i = 0; i < events; i++) {
|
|
|
579
|
|
|
580 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
581
|
|
|
582 if (event_list[i].flags & EV_ERROR) {
|
|
|
583 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
132
|
584 "kevent() error on %d filter:%d flags:%04Xd",
|
|
|
585 event_list[i].ident, event_list[i].filter,
|
|
|
586 event_list[i].flags);
|
|
0
|
587 continue;
|
|
|
588 }
|
|
|
589
|
|
112
|
590 #if (NGX_HAVE_TIMER_EVENT)
|
|
|
591
|
|
|
592 if (event_list[i].filter == EVFILT_TIMER) {
|
|
566
|
593 ngx_time_update();
|
|
112
|
594 continue;
|
|
|
595 }
|
|
|
596
|
|
|
597 #endif
|
|
|
598
|
|
0
|
599 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
600
|
|
|
601 switch (event_list[i].filter) {
|
|
|
602
|
|
|
603 case EVFILT_READ:
|
|
|
604 case EVFILT_WRITE:
|
|
|
605
|
|
|
606 instance = (uintptr_t) ev & 1;
|
|
|
607 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
608
|
|
|
609 if (ev->closed || ev->instance != instance) {
|
|
|
610
|
|
|
611 /*
|
|
|
612 * the stale event from a file descriptor
|
|
|
613 * that was just closed in this iteration
|
|
|
614 */
|
|
|
615
|
|
|
616 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
617 "kevent: stale event %p", ev);
|
|
0
|
618 continue;
|
|
|
619 }
|
|
|
620
|
|
|
621 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
622 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
623 }
|
|
|
624
|
|
58
|
625 if (ev->oneshot) {
|
|
|
626 ev->active = 0;
|
|
|
627 }
|
|
|
628
|
|
0
|
629 #if (NGX_THREADS)
|
|
|
630
|
|
112
|
631 if ((flags & NGX_POST_THREAD_EVENTS) && !ev->accept) {
|
|
0
|
632 ev->posted_ready = 1;
|
|
|
633 ev->posted_available = event_list[i].data;
|
|
|
634
|
|
|
635 if (event_list[i].flags & EV_EOF) {
|
|
|
636 ev->posted_eof = 1;
|
|
|
637 ev->posted_errno = event_list[i].fflags;
|
|
|
638 }
|
|
|
639
|
|
112
|
640 ngx_locked_post_event(ev, &ngx_posted_events);
|
|
0
|
641
|
|
|
642 continue;
|
|
|
643 }
|
|
|
644
|
|
|
645 #endif
|
|
|
646
|
|
|
647 ev->available = event_list[i].data;
|
|
|
648
|
|
|
649 if (event_list[i].flags & EV_EOF) {
|
|
|
650 ev->pending_eof = 1;
|
|
|
651 ev->kq_errno = event_list[i].fflags;
|
|
|
652 }
|
|
|
653
|
|
|
654 ev->ready = 1;
|
|
|
655
|
|
|
656 break;
|
|
|
657
|
|
|
658 case EVFILT_VNODE:
|
|
|
659 ev->kq_vnode = 1;
|
|
|
660
|
|
|
661 break;
|
|
|
662
|
|
|
663 case EVFILT_AIO:
|
|
|
664 ev->complete = 1;
|
|
|
665 ev->ready = 1;
|
|
|
666
|
|
|
667 break;
|
|
|
668
|
|
|
669 default:
|
|
|
670 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
671 "unexpected kevent() filter %d",
|
|
|
672 event_list[i].filter);
|
|
|
673 continue;
|
|
|
674 }
|
|
|
675
|
|
112
|
676 if (flags & NGX_POST_EVENTS) {
|
|
|
677 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events:
|
|
|
678 &ngx_posted_events);
|
|
|
679 ngx_locked_post_event(ev, queue);
|
|
0
|
680
|
|
|
681 continue;
|
|
|
682 }
|
|
|
683
|
|
58
|
684 ev->handler(ev);
|
|
0
|
685 }
|
|
|
686
|
|
112
|
687 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
0
|
688
|
|
|
689 return NGX_OK;
|
|
|
690 }
|
|
|
691
|
|
|
692
|
|
48
|
693 static ngx_int_t
|
|
|
694 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
0
|
695 {
|
|
|
696 int n;
|
|
|
697 ngx_int_t rc;
|
|
|
698 ngx_err_t err;
|
|
|
699 struct timespec ts;
|
|
|
700 struct kevent *changes;
|
|
|
701
|
|
112
|
702 ngx_mutex_lock(kevent_mutex);
|
|
0
|
703
|
|
112
|
704 ngx_mutex_lock(list_mutex);
|
|
0
|
705
|
|
|
706 if (nchanges == 0) {
|
|
|
707 ngx_mutex_unlock(list_mutex);
|
|
|
708 ngx_mutex_unlock(kevent_mutex);
|
|
|
709 return NGX_OK;
|
|
|
710 }
|
|
|
711
|
|
|
712 changes = change_list;
|
|
|
713 if (change_list == change_list0) {
|
|
|
714 change_list = change_list1;
|
|
|
715 } else {
|
|
|
716 change_list = change_list0;
|
|
|
717 }
|
|
|
718
|
|
324
|
719 n = (int) nchanges;
|
|
0
|
720 nchanges = 0;
|
|
|
721
|
|
|
722 ngx_mutex_unlock(list_mutex);
|
|
|
723
|
|
|
724 ts.tv_sec = 0;
|
|
|
725 ts.tv_nsec = 0;
|
|
|
726
|
|
|
727 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
728 "kevent changes: %d", n);
|
|
|
729
|
|
|
730 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
731 err = ngx_errno;
|
|
|
732 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
733 cycle->log, err, "kevent() failed");
|
|
|
734 rc = NGX_ERROR;
|
|
|
735
|
|
|
736 } else {
|
|
|
737 rc = NGX_OK;
|
|
|
738 }
|
|
|
739
|
|
|
740 ngx_mutex_unlock(kevent_mutex);
|
|
|
741
|
|
|
742 return rc;
|
|
|
743 }
|
|
|
744
|
|
|
745
|
|
48
|
746 static ngx_inline void
|
|
|
747 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
0
|
748 {
|
|
|
749 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
750 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
751 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
752 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
753 kev->ident, kev->filter,
|
|
|
754 kev->flags, kev->fflags,
|
|
|
755 kev->data, kev->udata);
|
|
|
756 }
|
|
|
757
|
|
|
758
|
|
48
|
759 static void *
|
|
|
760 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
0
|
761 {
|
|
|
762 ngx_kqueue_conf_t *kcf;
|
|
|
763
|
|
50
|
764 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
|
765 if (kcf == NULL) {
|
|
496
|
766 return NULL;
|
|
50
|
767 }
|
|
0
|
768
|
|
|
769 kcf->changes = NGX_CONF_UNSET;
|
|
|
770 kcf->events = NGX_CONF_UNSET;
|
|
|
771
|
|
|
772 return kcf;
|
|
|
773 }
|
|
|
774
|
|
|
775
|
|
48
|
776 static char *
|
|
|
777 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
778 {
|
|
|
779 ngx_kqueue_conf_t *kcf = conf;
|
|
|
780
|
|
324
|
781 ngx_conf_init_uint_value(kcf->changes, 512);
|
|
|
782 ngx_conf_init_uint_value(kcf->events, 512);
|
|
0
|
783
|
|
|
784 return NGX_CONF_OK;
|
|
|
785 }
|
