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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
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11
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12 typedef struct {
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324
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13 ngx_uint_t changes;
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14 ngx_uint_t events;
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0
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15 } ngx_kqueue_conf_t;
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16
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17
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112
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18 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer);
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0
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19 static void ngx_kqueue_done(ngx_cycle_t *cycle);
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324
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20 static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event,
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21 ngx_uint_t flags);
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22 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event,
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23 ngx_uint_t flags);
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24 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter,
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25 ngx_uint_t flags);
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0
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26 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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27 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
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28 ngx_uint_t flags);
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0
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29 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
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48
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30 struct kevent *kev);
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0
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31
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32 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
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33 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
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34
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35
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36 int ngx_kqueue = -1;
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37
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38 /*
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39 * The "change_list" should be declared as ngx_thread_volatile.
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40 * However, the use of the change_list is localized in kqueue functions and
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41 * is protected by the mutex so even the "icc -ipo" should not build the code
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42 * with the race condition. Thus we avoid the declaration to make a more
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43 * readable code.
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44 */
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45
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46 static struct kevent *change_list, *change_list0, *change_list1;
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47 static struct kevent *event_list;
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324
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48 static ngx_uint_t max_changes, nchanges, nevents;
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0
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49
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50 #if (NGX_THREADS)
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51 static ngx_mutex_t *list_mutex;
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52 static ngx_mutex_t *kevent_mutex;
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53 #endif
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54
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55
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56
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57 static ngx_str_t kqueue_name = ngx_string("kqueue");
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58
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59 static ngx_command_t ngx_kqueue_commands[] = {
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60
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48
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61 { ngx_string("kqueue_changes"),
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62 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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63 ngx_conf_set_num_slot,
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64 0,
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65 offsetof(ngx_kqueue_conf_t, changes),
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66 NULL },
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0
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67
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48
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68 { ngx_string("kqueue_events"),
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69 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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70 ngx_conf_set_num_slot,
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71 0,
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72 offsetof(ngx_kqueue_conf_t, events),
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73 NULL },
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0
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74
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48
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75 ngx_null_command
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0
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76 };
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77
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78
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79 ngx_event_module_t ngx_kqueue_module_ctx = {
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80 &kqueue_name,
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81 ngx_kqueue_create_conf, /* create configuration */
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82 ngx_kqueue_init_conf, /* init configuration */
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83
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84 {
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85 ngx_kqueue_add_event, /* add an event */
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86 ngx_kqueue_del_event, /* delete an event */
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87 ngx_kqueue_add_event, /* enable an event */
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88 ngx_kqueue_del_event, /* disable an event */
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89 NULL, /* add an connection */
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90 NULL, /* delete an connection */
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91 ngx_kqueue_process_changes, /* process the changes */
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92 ngx_kqueue_process_events, /* process the events */
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93 ngx_kqueue_init, /* init the events */
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94 ngx_kqueue_done /* done the events */
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95 }
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96
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97 };
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98
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99 ngx_module_t ngx_kqueue_module = {
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58
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100 NGX_MODULE_V1,
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0
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101 &ngx_kqueue_module_ctx, /* module context */
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102 ngx_kqueue_commands, /* module directives */
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103 NGX_EVENT_MODULE, /* module type */
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90
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104 NULL, /* init master */
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0
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105 NULL, /* init module */
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90
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106 NULL, /* init process */
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107 NULL, /* init thread */
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108 NULL, /* exit thread */
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109 NULL, /* exit process */
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110 NULL, /* exit master */
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111 NGX_MODULE_V1_PADDING
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0
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112 };
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113
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114
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48
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115 static ngx_int_t
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112
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116 ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
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0
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117 {
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114
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118 ngx_kqueue_conf_t *kcf;
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0
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119 struct timespec ts;
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114
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120 #if (NGX_HAVE_TIMER_EVENT)
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121 struct kevent kev;
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122 #endif
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0
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123
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124 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
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125
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126 if (ngx_kqueue == -1) {
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127 ngx_kqueue = kqueue();
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128
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129 if (ngx_kqueue == -1) {
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130 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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131 "kqueue() failed");
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132 return NGX_ERROR;
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133 }
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134
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135 #if (NGX_THREADS)
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136
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50
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137 list_mutex = ngx_mutex_init(cycle->log, 0);
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138 if (list_mutex == NULL) {
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0
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139 return NGX_ERROR;
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140 }
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141
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50
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142 kevent_mutex = ngx_mutex_init(cycle->log, 0);
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143 if (kevent_mutex == NULL) {
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0
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144 return NGX_ERROR;
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145 }
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146
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147 #endif
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148 }
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149
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150 if (max_changes < kcf->changes) {
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151 if (nchanges) {
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152 ts.tv_sec = 0;
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153 ts.tv_nsec = 0;
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154
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324
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155 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
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156 == -1)
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157 {
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0
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158 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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159 "kevent() failed");
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160 return NGX_ERROR;
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161 }
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162 nchanges = 0;
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163 }
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164
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165 if (change_list0) {
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166 ngx_free(change_list0);
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167 }
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168
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169 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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170 cycle->log);
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171 if (change_list0 == NULL) {
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172 return NGX_ERROR;
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173 }
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174
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175 if (change_list1) {
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176 ngx_free(change_list1);
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177 }
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178
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179 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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180 cycle->log);
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181 if (change_list1 == NULL) {
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182 return NGX_ERROR;
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183 }
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184
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185 change_list = change_list0;
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186 }
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187
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188 max_changes = kcf->changes;
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189
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190 if (nevents < kcf->events) {
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191 if (event_list) {
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192 ngx_free(event_list);
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193 }
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194
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195 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
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196 if (event_list == NULL) {
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197 return NGX_ERROR;
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198 }
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199 }
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200
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332
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201 ngx_event_flags = NGX_USE_ONESHOT_EVENT
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202 |NGX_USE_KQUEUE_EVENT
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203 |NGX_USE_VNODE_EVENT;
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112
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204
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205 #if (NGX_HAVE_TIMER_EVENT)
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206
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207 if (timer) {
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208 kev.ident = 0;
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209 kev.filter = EVFILT_TIMER;
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210 kev.flags = EV_ADD|EV_ENABLE;
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211 kev.fflags = 0;
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212 kev.data = timer;
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213 kev.udata = 0;
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214
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215 ts.tv_sec = 0;
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216 ts.tv_nsec = 0;
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217
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218 if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
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219 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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220 "kevent(EVFILT_TIMER) failed");
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221 return NGX_ERROR;
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222 }
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223
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224 ngx_event_flags |= NGX_USE_TIMER_EVENT;
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225 }
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226
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227 #endif
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228
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229 #if (NGX_HAVE_CLEAR_EVENT)
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230 ngx_event_flags |= NGX_USE_CLEAR_EVENT;
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231 #else
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232 ngx_event_flags |= NGX_USE_LEVEL_EVENT;
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233 #endif
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234
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235 #if (NGX_HAVE_LOWAT_EVENT)
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236 ngx_event_flags |= NGX_USE_LOWAT_EVENT;
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237 #endif
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238
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0
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239 nevents = kcf->events;
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240
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241 ngx_io = ngx_os_io;
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242
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243 ngx_event_actions = ngx_kqueue_module_ctx.actions;
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244
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245 return NGX_OK;
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246 }
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247
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248
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48
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249 static void
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250 ngx_kqueue_done(ngx_cycle_t *cycle)
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0
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251 {
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252 if (close(ngx_kqueue) == -1) {
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253 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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254 "kqueue close() failed");
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255 }
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256
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257 ngx_kqueue = -1;
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258
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259 #if (NGX_THREADS)
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260 ngx_mutex_destroy(kevent_mutex);
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261 ngx_mutex_destroy(list_mutex);
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262 #endif
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263
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264 ngx_free(change_list1);
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265 ngx_free(change_list0);
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266 ngx_free(event_list);
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267
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268 change_list1 = NULL;
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269 change_list0 = NULL;
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270 change_list = NULL;
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271 event_list = NULL;
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272 max_changes = 0;
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273 nchanges = 0;
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274 nevents = 0;
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275 }
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276
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277
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48
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278 static ngx_int_t
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324
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279 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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280 {
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281 ngx_int_t rc;
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132
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282 #if 0
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0
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283 ngx_event_t *e;
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284 ngx_connection_t *c;
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132
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285 #endif
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0
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286
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287 ev->active = 1;
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288 ev->disabled = 0;
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289 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
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290
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112
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291 ngx_mutex_lock(list_mutex);
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0
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292
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132
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293 #if 0
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4
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294
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324
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295 if (ev->index < nchanges
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0
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296 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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297 == (uintptr_t) ev)
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0
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298 {
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299 if (change_list[ev->index].flags == EV_DISABLE) {
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300
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301 /*
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302 * if the EV_DISABLE is still not passed to a kernel
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303 * we will not pass it
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304 */
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305
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306 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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324
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307 "kevent activated: %d: ft:%i",
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0
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308 ngx_event_ident(ev->data), event);
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309
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324
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310 if (ev->index < --nchanges) {
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4
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311 e = (ngx_event_t *)
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312 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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313 change_list[ev->index] = change_list[nchanges];
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314 e->index = ev->index;
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315 }
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316
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317 ngx_mutex_unlock(list_mutex);
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318
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319 return NGX_OK;
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320 }
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321
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322 c = ev->data;
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323
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324 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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325 "previous event on #%d were not passed in kernel", c->fd);
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326
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327 ngx_mutex_unlock(list_mutex);
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328
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329 return NGX_ERROR;
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330 }
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331
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4
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332 #endif
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333
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0
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334 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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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 rc;
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339 }
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340
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341
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48
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342 static ngx_int_t
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324
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343 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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344 {
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345 ngx_int_t rc;
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346 ngx_event_t *e;
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347
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348 ev->active = 0;
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349 ev->disabled = 0;
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350
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112
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351 ngx_mutex_lock(list_mutex);
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0
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352
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324
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353 if (ev->index < nchanges
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0
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354 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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355 == (uintptr_t) ev)
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0
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356 {
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357 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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324
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358 "kevent deleted: %d: ft:%i",
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0
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359 ngx_event_ident(ev->data), event);
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360
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361 /* if the event is still not passed to a kernel we will not pass it */
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362
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132
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363 nchanges--;
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364
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324
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365 if (ev->index < nchanges) {
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4
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366 e = (ngx_event_t *)
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367 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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368 change_list[ev->index] = change_list[nchanges];
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369 e->index = ev->index;
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370 }
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371
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372 ngx_mutex_unlock(list_mutex);
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373
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374 return NGX_OK;
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375 }
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376
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377 /*
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378 * when the file descriptor is closed the kqueue automatically deletes
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379 * its filters so we do not need to delete explicity the event
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380 * before the closing the file descriptor.
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381 */
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382
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383 if (flags & NGX_CLOSE_EVENT) {
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384 ngx_mutex_unlock(list_mutex);
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385 return NGX_OK;
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386 }
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387
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388 if (flags & NGX_DISABLE_EVENT) {
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389 ev->disabled = 1;
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332
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390
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391 } else {
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392 flags |= EV_DELETE;
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0
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393 }
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394
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332
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395 rc = ngx_kqueue_set_event(ev, event, flags);
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0
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396
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397 ngx_mutex_unlock(list_mutex);
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398
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399 return rc;
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400 }
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401
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402
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48
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403 static ngx_int_t
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324
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404 ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter, ngx_uint_t flags)
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0
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405 {
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406 struct kevent *kev;
|
|
|
407 struct timespec ts;
|
|
|
408 ngx_connection_t *c;
|
|
|
409
|
|
|
410 c = ev->data;
|
|
|
411
|
|
332
|
412 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
324
|
413 "kevent set event: %d: ft:%i fl:%04Xi",
|
|
0
|
414 c->fd, filter, flags);
|
|
|
415
|
|
|
416 if (nchanges >= max_changes) {
|
|
|
417 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
418 "kqueue change list is filled up");
|
|
|
419
|
|
|
420 ts.tv_sec = 0;
|
|
|
421 ts.tv_nsec = 0;
|
|
|
422
|
|
324
|
423 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
|
|
|
424 == -1)
|
|
|
425 {
|
|
0
|
426 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
427 return NGX_ERROR;
|
|
|
428 }
|
|
|
429
|
|
|
430 nchanges = 0;
|
|
|
431 }
|
|
|
432
|
|
|
433 kev = &change_list[nchanges];
|
|
|
434
|
|
|
435 kev->ident = c->fd;
|
|
324
|
436 kev->filter = (short) filter;
|
|
|
437 kev->flags = (u_short) flags;
|
|
38
|
438 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
|
0
|
439
|
|
|
440 if (filter == EVFILT_VNODE) {
|
|
|
441 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
|
442 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
443 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
444 || __FreeBSD_version >= 500018
|
|
|
445 |NOTE_REVOKE
|
|
|
446 #endif
|
|
378
|
447 ;
|
|
0
|
448 kev->data = 0;
|
|
|
449
|
|
|
450 } else {
|
|
4
|
451 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
452 if (flags & NGX_LOWAT_EVENT) {
|
|
|
453 kev->fflags = NOTE_LOWAT;
|
|
|
454 kev->data = ev->available;
|
|
|
455
|
|
|
456 } else {
|
|
|
457 kev->fflags = 0;
|
|
|
458 kev->data = 0;
|
|
|
459 }
|
|
|
460 #else
|
|
|
461 kev->fflags = 0;
|
|
|
462 kev->data = 0;
|
|
|
463 #endif
|
|
|
464 }
|
|
|
465
|
|
|
466 ev->index = nchanges;
|
|
|
467 nchanges++;
|
|
|
468
|
|
332
|
469 if (flags & NGX_FLUSH_EVENT) {
|
|
|
470 ts.tv_sec = 0;
|
|
|
471 ts.tv_nsec = 0;
|
|
|
472
|
|
|
473 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "kevent flush");
|
|
|
474
|
|
|
475 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
|
|
|
476 == -1)
|
|
|
477 {
|
|
|
478 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
479 return NGX_ERROR;
|
|
|
480 }
|
|
|
481
|
|
|
482 nchanges = 0;
|
|
|
483 }
|
|
|
484
|
|
0
|
485 return NGX_OK;
|
|
|
486 }
|
|
|
487
|
|
|
488
|
|
48
|
489 static ngx_int_t
|
|
112
|
490 ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
|
491 ngx_uint_t flags)
|
|
0
|
492 {
|
|
112
|
493 int events, n;
|
|
|
494 ngx_int_t i, instance;
|
|
|
495 ngx_uint_t level;
|
|
|
496 ngx_err_t err;
|
|
|
497 ngx_event_t *ev, **queue;
|
|
|
498 struct timespec ts, *tp;
|
|
0
|
499
|
|
|
500 if (ngx_threaded) {
|
|
|
501 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
502 return NGX_ERROR;
|
|
|
503 }
|
|
|
504
|
|
|
505 n = 0;
|
|
|
506
|
|
|
507 } else {
|
|
324
|
508 n = (int) nchanges;
|
|
0
|
509 nchanges = 0;
|
|
|
510 }
|
|
|
511
|
|
|
512 if (timer == NGX_TIMER_INFINITE) {
|
|
|
513 tp = NULL;
|
|
|
514
|
|
|
515 } else {
|
|
168
|
516
|
|
172
|
517 ts.tv_sec = timer / 1000;
|
|
|
518 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
519
|
|
168
|
520 /*
|
|
172
|
521 * 64-bit Darwin kernel has the bug: kernel level ts.tv_nsec is
|
|
168
|
522 * the int32_t while user level ts.tv_nsec is the long (64-bit),
|
|
|
523 * so on the big endian PowerPC all nanoseconds are lost.
|
|
|
524 */
|
|
|
525
|
|
172
|
526 #if (NGX_DARWIN_KEVENT_BUG)
|
|
|
527 ts.tv_nsec <<= 32;
|
|
|
528 #endif
|
|
|
529
|
|
0
|
530 tp = &ts;
|
|
|
531 }
|
|
|
532
|
|
|
533 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
110
|
534 "kevent timer: %M, changes: %d", timer, n);
|
|
0
|
535
|
|
324
|
536 events = kevent(ngx_kqueue, change_list, n, event_list, (int) nevents, tp);
|
|
0
|
537
|
|
518
|
538 err = (events == -1) ? ngx_errno : 0;
|
|
0
|
539
|
|
112
|
540 if (flags & NGX_UPDATE_TIME) {
|
|
|
541 ngx_time_update(0, 0);
|
|
|
542 }
|
|
0
|
543
|
|
|
544 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
545 "kevent events: %d", events);
|
|
|
546
|
|
112
|
547 if (err) {
|
|
|
548 if (err == NGX_EINTR) {
|
|
|
549
|
|
|
550 if (ngx_event_timer_alarm) {
|
|
|
551 ngx_event_timer_alarm = 0;
|
|
|
552 return NGX_OK;
|
|
|
553 }
|
|
0
|
554
|
|
112
|
555 level = NGX_LOG_INFO;
|
|
|
556
|
|
|
557 } else {
|
|
|
558 level = NGX_LOG_ALERT;
|
|
|
559 }
|
|
|
560
|
|
|
561 ngx_log_error(level, cycle->log, err, "kevent() failed");
|
|
0
|
562 return NGX_ERROR;
|
|
|
563 }
|
|
|
564
|
|
116
|
565 if (events == 0) {
|
|
|
566 if (timer != NGX_TIMER_INFINITE) {
|
|
|
567 return NGX_OK;
|
|
|
568 }
|
|
0
|
569
|
|
116
|
570 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
571 "kevent() returned no events without timeout");
|
|
|
572 return NGX_ERROR;
|
|
112
|
573 }
|
|
0
|
574
|
|
112
|
575 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
576
|
|
|
577 for (i = 0; i < events; i++) {
|
|
|
578
|
|
|
579 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
580
|
|
|
581 if (event_list[i].flags & EV_ERROR) {
|
|
|
582 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
132
|
583 "kevent() error on %d filter:%d flags:%04Xd",
|
|
|
584 event_list[i].ident, event_list[i].filter,
|
|
|
585 event_list[i].flags);
|
|
0
|
586 continue;
|
|
|
587 }
|
|
|
588
|
|
112
|
589 #if (NGX_HAVE_TIMER_EVENT)
|
|
|
590
|
|
|
591 if (event_list[i].filter == EVFILT_TIMER) {
|
|
|
592 ngx_time_update(0, 0);
|
|
|
593 continue;
|
|
|
594 }
|
|
|
595
|
|
|
596 #endif
|
|
|
597
|
|
0
|
598 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
599
|
|
|
600 switch (event_list[i].filter) {
|
|
|
601
|
|
|
602 case EVFILT_READ:
|
|
|
603 case EVFILT_WRITE:
|
|
|
604
|
|
|
605 instance = (uintptr_t) ev & 1;
|
|
|
606 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
607
|
|
|
608 if (ev->closed || ev->instance != instance) {
|
|
|
609
|
|
|
610 /*
|
|
|
611 * the stale event from a file descriptor
|
|
|
612 * that was just closed in this iteration
|
|
|
613 */
|
|
|
614
|
|
|
615 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
616 "kevent: stale event %p", ev);
|
|
0
|
617 continue;
|
|
|
618 }
|
|
|
619
|
|
|
620 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
621 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
622 }
|
|
|
623
|
|
58
|
624 if (ev->oneshot) {
|
|
|
625 ev->active = 0;
|
|
|
626 }
|
|
|
627
|
|
0
|
628 #if (NGX_THREADS)
|
|
|
629
|
|
112
|
630 if ((flags & NGX_POST_THREAD_EVENTS) && !ev->accept) {
|
|
0
|
631 ev->posted_ready = 1;
|
|
|
632 ev->posted_available = event_list[i].data;
|
|
|
633
|
|
|
634 if (event_list[i].flags & EV_EOF) {
|
|
|
635 ev->posted_eof = 1;
|
|
|
636 ev->posted_errno = event_list[i].fflags;
|
|
|
637 }
|
|
|
638
|
|
112
|
639 ngx_locked_post_event(ev, &ngx_posted_events);
|
|
0
|
640
|
|
|
641 continue;
|
|
|
642 }
|
|
|
643
|
|
|
644 #endif
|
|
|
645
|
|
|
646 ev->available = event_list[i].data;
|
|
|
647
|
|
|
648 if (event_list[i].flags & EV_EOF) {
|
|
|
649 ev->pending_eof = 1;
|
|
|
650 ev->kq_errno = event_list[i].fflags;
|
|
|
651 }
|
|
|
652
|
|
|
653 ev->ready = 1;
|
|
|
654
|
|
|
655 break;
|
|
|
656
|
|
|
657 case EVFILT_VNODE:
|
|
|
658 ev->kq_vnode = 1;
|
|
|
659
|
|
|
660 break;
|
|
|
661
|
|
|
662 case EVFILT_AIO:
|
|
|
663 ev->complete = 1;
|
|
|
664 ev->ready = 1;
|
|
|
665
|
|
|
666 break;
|
|
|
667
|
|
|
668 default:
|
|
|
669 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
670 "unexpected kevent() filter %d",
|
|
|
671 event_list[i].filter);
|
|
|
672 continue;
|
|
|
673 }
|
|
|
674
|
|
112
|
675 if (flags & NGX_POST_EVENTS) {
|
|
|
676 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events:
|
|
|
677 &ngx_posted_events);
|
|
|
678 ngx_locked_post_event(ev, queue);
|
|
0
|
679
|
|
|
680 continue;
|
|
|
681 }
|
|
|
682
|
|
58
|
683 ev->handler(ev);
|
|
0
|
684 }
|
|
|
685
|
|
112
|
686 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
0
|
687
|
|
|
688 return NGX_OK;
|
|
|
689 }
|
|
|
690
|
|
|
691
|
|
48
|
692 static ngx_int_t
|
|
|
693 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
0
|
694 {
|
|
|
695 int n;
|
|
|
696 ngx_int_t rc;
|
|
|
697 ngx_err_t err;
|
|
|
698 struct timespec ts;
|
|
|
699 struct kevent *changes;
|
|
|
700
|
|
112
|
701 ngx_mutex_lock(kevent_mutex);
|
|
0
|
702
|
|
112
|
703 ngx_mutex_lock(list_mutex);
|
|
0
|
704
|
|
|
705 if (nchanges == 0) {
|
|
|
706 ngx_mutex_unlock(list_mutex);
|
|
|
707 ngx_mutex_unlock(kevent_mutex);
|
|
|
708 return NGX_OK;
|
|
|
709 }
|
|
|
710
|
|
|
711 changes = change_list;
|
|
|
712 if (change_list == change_list0) {
|
|
|
713 change_list = change_list1;
|
|
|
714 } else {
|
|
|
715 change_list = change_list0;
|
|
|
716 }
|
|
|
717
|
|
324
|
718 n = (int) nchanges;
|
|
0
|
719 nchanges = 0;
|
|
|
720
|
|
|
721 ngx_mutex_unlock(list_mutex);
|
|
|
722
|
|
|
723 ts.tv_sec = 0;
|
|
|
724 ts.tv_nsec = 0;
|
|
|
725
|
|
|
726 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
727 "kevent changes: %d", n);
|
|
|
728
|
|
|
729 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
730 err = ngx_errno;
|
|
|
731 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
732 cycle->log, err, "kevent() failed");
|
|
|
733 rc = NGX_ERROR;
|
|
|
734
|
|
|
735 } else {
|
|
|
736 rc = NGX_OK;
|
|
|
737 }
|
|
|
738
|
|
|
739 ngx_mutex_unlock(kevent_mutex);
|
|
|
740
|
|
|
741 return rc;
|
|
|
742 }
|
|
|
743
|
|
|
744
|
|
48
|
745 static ngx_inline void
|
|
|
746 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
0
|
747 {
|
|
|
748 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
749 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
750 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
751 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
752 kev->ident, kev->filter,
|
|
|
753 kev->flags, kev->fflags,
|
|
|
754 kev->data, kev->udata);
|
|
|
755 }
|
|
|
756
|
|
|
757
|
|
48
|
758 static void *
|
|
|
759 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
0
|
760 {
|
|
|
761 ngx_kqueue_conf_t *kcf;
|
|
|
762
|
|
50
|
763 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
|
764 if (kcf == NULL) {
|
|
496
|
765 return NULL;
|
|
50
|
766 }
|
|
0
|
767
|
|
|
768 kcf->changes = NGX_CONF_UNSET;
|
|
|
769 kcf->events = NGX_CONF_UNSET;
|
|
|
770
|
|
|
771 return kcf;
|
|
|
772 }
|
|
|
773
|
|
|
774
|
|
48
|
775 static char *
|
|
|
776 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
777 {
|
|
|
778 ngx_kqueue_conf_t *kcf = conf;
|
|
|
779
|
|
324
|
780 ngx_conf_init_uint_value(kcf->changes, 512);
|
|
|
781 ngx_conf_init_uint_value(kcf->events, 512);
|
|
0
|
782
|
|
|
783 return NGX_CONF_OK;
|
|
|
784 }
|
