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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_kqueue_module.h>
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11
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12
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13 typedef struct {
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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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116
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48
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117 static ngx_int_t
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112
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118 ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
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0
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119 {
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114
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120 ngx_kqueue_conf_t *kcf;
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0
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121 struct timespec ts;
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114
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122 #if (NGX_HAVE_TIMER_EVENT)
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123 struct kevent kev;
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124 #endif
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0
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125
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126 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
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127
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128 if (ngx_kqueue == -1) {
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129 ngx_kqueue = kqueue();
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130
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131 if (ngx_kqueue == -1) {
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132 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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133 "kqueue() failed");
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134 return NGX_ERROR;
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135 }
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136
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137 #if (NGX_THREADS)
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138
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50
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139 list_mutex = ngx_mutex_init(cycle->log, 0);
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140 if (list_mutex == NULL) {
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0
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141 return NGX_ERROR;
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142 }
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143
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50
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144 kevent_mutex = ngx_mutex_init(cycle->log, 0);
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145 if (kevent_mutex == NULL) {
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0
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146 return NGX_ERROR;
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147 }
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148
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149 #endif
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150 }
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151
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152 if (max_changes < kcf->changes) {
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153 if (nchanges) {
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154 ts.tv_sec = 0;
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155 ts.tv_nsec = 0;
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156
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324
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157 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
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158 == -1)
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159 {
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0
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160 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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161 "kevent() failed");
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162 return NGX_ERROR;
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163 }
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164 nchanges = 0;
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165 }
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166
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167 if (change_list0) {
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168 ngx_free(change_list0);
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169 }
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170
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171 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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172 cycle->log);
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173 if (change_list0 == NULL) {
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174 return NGX_ERROR;
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175 }
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176
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177 if (change_list1) {
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178 ngx_free(change_list1);
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179 }
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180
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181 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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182 cycle->log);
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183 if (change_list1 == NULL) {
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184 return NGX_ERROR;
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185 }
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186
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187 change_list = change_list0;
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188 }
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189
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190 max_changes = kcf->changes;
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191
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192 if (nevents < kcf->events) {
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193 if (event_list) {
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194 ngx_free(event_list);
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195 }
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196
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197 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
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198 if (event_list == NULL) {
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199 return NGX_ERROR;
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200 }
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201 }
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202
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332
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203 ngx_event_flags = NGX_USE_ONESHOT_EVENT
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204 |NGX_USE_KQUEUE_EVENT
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205 |NGX_USE_VNODE_EVENT;
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112
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206
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207 #if (NGX_HAVE_TIMER_EVENT)
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208
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209 if (timer) {
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210 kev.ident = 0;
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211 kev.filter = EVFILT_TIMER;
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212 kev.flags = EV_ADD|EV_ENABLE;
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213 kev.fflags = 0;
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214 kev.data = timer;
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215 kev.udata = 0;
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216
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217 ts.tv_sec = 0;
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218 ts.tv_nsec = 0;
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219
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220 if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
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221 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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222 "kevent(EVFILT_TIMER) failed");
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223 return NGX_ERROR;
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224 }
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225
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226 ngx_event_flags |= NGX_USE_TIMER_EVENT;
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227 }
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228
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229 #endif
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230
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231 #if (NGX_HAVE_CLEAR_EVENT)
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232 ngx_event_flags |= NGX_USE_CLEAR_EVENT;
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233 #else
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234 ngx_event_flags |= NGX_USE_LEVEL_EVENT;
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235 #endif
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236
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237 #if (NGX_HAVE_LOWAT_EVENT)
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238 ngx_event_flags |= NGX_USE_LOWAT_EVENT;
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239 #endif
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240
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0
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241 nevents = kcf->events;
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242
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243 ngx_io = ngx_os_io;
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244
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245 ngx_event_actions = ngx_kqueue_module_ctx.actions;
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246
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247 return NGX_OK;
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248 }
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249
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250
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48
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251 static void
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252 ngx_kqueue_done(ngx_cycle_t *cycle)
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0
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253 {
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254 if (close(ngx_kqueue) == -1) {
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255 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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256 "kqueue close() failed");
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257 }
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258
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259 ngx_kqueue = -1;
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260
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261 #if (NGX_THREADS)
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262 ngx_mutex_destroy(kevent_mutex);
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263 ngx_mutex_destroy(list_mutex);
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264 #endif
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265
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266 ngx_free(change_list1);
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267 ngx_free(change_list0);
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268 ngx_free(event_list);
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269
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270 change_list1 = NULL;
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271 change_list0 = NULL;
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272 change_list = NULL;
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273 event_list = NULL;
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274 max_changes = 0;
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275 nchanges = 0;
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276 nevents = 0;
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277 }
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278
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279
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48
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280 static ngx_int_t
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324
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281 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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282 {
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283 ngx_int_t rc;
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132
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284 #if 0
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0
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285 ngx_event_t *e;
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286 ngx_connection_t *c;
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132
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287 #endif
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0
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288
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289 ev->active = 1;
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290 ev->disabled = 0;
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291 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
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292
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112
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293 ngx_mutex_lock(list_mutex);
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0
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294
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132
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295 #if 0
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4
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296
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324
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297 if (ev->index < nchanges
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0
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298 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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299 == (uintptr_t) ev)
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0
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300 {
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301 if (change_list[ev->index].flags == EV_DISABLE) {
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302
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303 /*
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304 * if the EV_DISABLE is still not passed to a kernel
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305 * we will not pass it
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306 */
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307
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308 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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324
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309 "kevent activated: %d: ft:%i",
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0
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310 ngx_event_ident(ev->data), event);
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311
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324
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312 if (ev->index < --nchanges) {
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4
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313 e = (ngx_event_t *)
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314 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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315 change_list[ev->index] = change_list[nchanges];
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316 e->index = ev->index;
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317 }
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318
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319 ngx_mutex_unlock(list_mutex);
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320
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321 return NGX_OK;
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322 }
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323
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324 c = ev->data;
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325
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326 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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327 "previous event on #%d were not passed in kernel", c->fd);
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328
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329 ngx_mutex_unlock(list_mutex);
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330
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331 return NGX_ERROR;
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332 }
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333
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4
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334 #endif
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335
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0
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336 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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337
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338 ngx_mutex_unlock(list_mutex);
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339
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340 return rc;
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341 }
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342
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343
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48
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344 static ngx_int_t
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324
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345 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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346 {
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347 ngx_int_t rc;
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348 ngx_event_t *e;
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349
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350 ev->active = 0;
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351 ev->disabled = 0;
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352
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112
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353 ngx_mutex_lock(list_mutex);
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0
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354
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324
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355 if (ev->index < nchanges
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0
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356 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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132
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357 == (uintptr_t) ev)
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0
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358 {
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359 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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324
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360 "kevent deleted: %d: ft:%i",
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0
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361 ngx_event_ident(ev->data), event);
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362
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363 /* if the event is still not passed to a kernel we will not pass it */
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364
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132
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365 nchanges--;
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366
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324
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367 if (ev->index < nchanges) {
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4
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368 e = (ngx_event_t *)
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369 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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370 change_list[ev->index] = change_list[nchanges];
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371 e->index = ev->index;
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372 }
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373
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374 ngx_mutex_unlock(list_mutex);
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375
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376 return NGX_OK;
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377 }
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378
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379 /*
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380 * when the file descriptor is closed the kqueue automatically deletes
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381 * its filters so we do not need to delete explicity the event
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382 * before the closing the file descriptor.
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383 */
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384
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385 if (flags & NGX_CLOSE_EVENT) {
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386 ngx_mutex_unlock(list_mutex);
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387 return NGX_OK;
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388 }
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389
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390 if (flags & NGX_DISABLE_EVENT) {
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391 ev->disabled = 1;
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332
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392
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393 } else {
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394 flags |= EV_DELETE;
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0
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395 }
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396
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332
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397 rc = ngx_kqueue_set_event(ev, event, flags);
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0
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398
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399 ngx_mutex_unlock(list_mutex);
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400
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401 return rc;
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402 }
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403
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404
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48
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405 static ngx_int_t
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324
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406 ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter, ngx_uint_t flags)
|
|
0
|
407 {
|
|
|
408 struct kevent *kev;
|
|
|
409 struct timespec ts;
|
|
|
410 ngx_connection_t *c;
|
|
|
411
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|
|
412 c = ev->data;
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|
|
413
|
|
332
|
414 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
|
|
324
|
415 "kevent set event: %d: ft:%i fl:%04Xi",
|
|
0
|
416 c->fd, filter, flags);
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|
|
417
|
|
|
418 if (nchanges >= max_changes) {
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|
|
419 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
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|
|
420 "kqueue change list is filled up");
|
|
|
421
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|
|
422 ts.tv_sec = 0;
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|
|
423 ts.tv_nsec = 0;
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|
|
424
|
|
324
|
425 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
|
|
|
426 == -1)
|
|
|
427 {
|
|
0
|
428 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
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|
|
429 return NGX_ERROR;
|
|
|
430 }
|
|
|
431
|
|
|
432 nchanges = 0;
|
|
|
433 }
|
|
|
434
|
|
|
435 kev = &change_list[nchanges];
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|
|
436
|
|
|
437 kev->ident = c->fd;
|
|
324
|
438 kev->filter = (short) filter;
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|
|
439 kev->flags = (u_short) flags;
|
|
38
|
440 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
|
0
|
441
|
|
|
442 if (filter == EVFILT_VNODE) {
|
|
|
443 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
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|
444 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
445 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
446 || __FreeBSD_version >= 500018
|
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|
447 |NOTE_REVOKE
|
|
|
448 #endif
|
|
378
|
449 ;
|
|
0
|
450 kev->data = 0;
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|
|
451
|
|
|
452 } else {
|
|
4
|
453 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
454 if (flags & NGX_LOWAT_EVENT) {
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|
|
455 kev->fflags = NOTE_LOWAT;
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|
|
456 kev->data = ev->available;
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|
|
457
|
|
|
458 } else {
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|
|
459 kev->fflags = 0;
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|
|
460 kev->data = 0;
|
|
|
461 }
|
|
|
462 #else
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|
|
463 kev->fflags = 0;
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|
|
464 kev->data = 0;
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|
|
465 #endif
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|
|
466 }
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467
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|
468 ev->index = nchanges;
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|
469 nchanges++;
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|
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470
|
|
332
|
471 if (flags & NGX_FLUSH_EVENT) {
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|
|
472 ts.tv_sec = 0;
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|
|
473 ts.tv_nsec = 0;
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|
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474
|
|
|
475 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "kevent flush");
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|
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476
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|
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477 if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
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|
|
478 == -1)
|
|
|
479 {
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|
|
480 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
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|
|
481 return NGX_ERROR;
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|
|
482 }
|
|
|
483
|
|
|
484 nchanges = 0;
|
|
|
485 }
|
|
|
486
|
|
0
|
487 return NGX_OK;
|
|
|
488 }
|
|
|
489
|
|
|
490
|
|
48
|
491 static ngx_int_t
|
|
112
|
492 ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
|
493 ngx_uint_t flags)
|
|
0
|
494 {
|
|
112
|
495 int events, n;
|
|
|
496 ngx_int_t i, instance;
|
|
|
497 ngx_uint_t level;
|
|
|
498 ngx_err_t err;
|
|
|
499 ngx_event_t *ev, **queue;
|
|
|
500 struct timespec ts, *tp;
|
|
0
|
501
|
|
|
502 if (ngx_threaded) {
|
|
|
503 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
504 return NGX_ERROR;
|
|
|
505 }
|
|
|
506
|
|
|
507 n = 0;
|
|
|
508
|
|
|
509 } else {
|
|
324
|
510 n = (int) nchanges;
|
|
0
|
511 nchanges = 0;
|
|
|
512 }
|
|
|
513
|
|
|
514 if (timer == NGX_TIMER_INFINITE) {
|
|
|
515 tp = NULL;
|
|
|
516
|
|
|
517 } else {
|
|
168
|
518
|
|
172
|
519 ts.tv_sec = timer / 1000;
|
|
|
520 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
521
|
|
168
|
522 /*
|
|
172
|
523 * 64-bit Darwin kernel has the bug: kernel level ts.tv_nsec is
|
|
168
|
524 * the int32_t while user level ts.tv_nsec is the long (64-bit),
|
|
|
525 * so on the big endian PowerPC all nanoseconds are lost.
|
|
|
526 */
|
|
|
527
|
|
172
|
528 #if (NGX_DARWIN_KEVENT_BUG)
|
|
|
529 ts.tv_nsec <<= 32;
|
|
|
530 #endif
|
|
|
531
|
|
0
|
532 tp = &ts;
|
|
|
533 }
|
|
|
534
|
|
|
535 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
110
|
536 "kevent timer: %M, changes: %d", timer, n);
|
|
0
|
537
|
|
324
|
538 events = kevent(ngx_kqueue, change_list, n, event_list, (int) nevents, tp);
|
|
0
|
539
|
|
|
540 if (events == -1) {
|
|
|
541 err = ngx_errno;
|
|
|
542 } else {
|
|
|
543 err = 0;
|
|
|
544 }
|
|
|
545
|
|
112
|
546 if (flags & NGX_UPDATE_TIME) {
|
|
|
547 ngx_time_update(0, 0);
|
|
|
548 }
|
|
0
|
549
|
|
|
550 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
551 "kevent events: %d", events);
|
|
|
552
|
|
112
|
553 if (err) {
|
|
|
554 if (err == NGX_EINTR) {
|
|
|
555
|
|
|
556 if (ngx_event_timer_alarm) {
|
|
|
557 ngx_event_timer_alarm = 0;
|
|
|
558 return NGX_OK;
|
|
|
559 }
|
|
0
|
560
|
|
112
|
561 level = NGX_LOG_INFO;
|
|
|
562
|
|
|
563 } else {
|
|
|
564 level = NGX_LOG_ALERT;
|
|
|
565 }
|
|
|
566
|
|
|
567 ngx_log_error(level, cycle->log, err, "kevent() failed");
|
|
0
|
568 return NGX_ERROR;
|
|
|
569 }
|
|
|
570
|
|
116
|
571 if (events == 0) {
|
|
|
572 if (timer != NGX_TIMER_INFINITE) {
|
|
|
573 return NGX_OK;
|
|
|
574 }
|
|
0
|
575
|
|
116
|
576 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
577 "kevent() returned no events without timeout");
|
|
|
578 return NGX_ERROR;
|
|
112
|
579 }
|
|
0
|
580
|
|
112
|
581 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
582
|
|
|
583 for (i = 0; i < events; i++) {
|
|
|
584
|
|
|
585 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
586
|
|
|
587 if (event_list[i].flags & EV_ERROR) {
|
|
|
588 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
132
|
589 "kevent() error on %d filter:%d flags:%04Xd",
|
|
|
590 event_list[i].ident, event_list[i].filter,
|
|
|
591 event_list[i].flags);
|
|
0
|
592 continue;
|
|
|
593 }
|
|
|
594
|
|
112
|
595 #if (NGX_HAVE_TIMER_EVENT)
|
|
|
596
|
|
|
597 if (event_list[i].filter == EVFILT_TIMER) {
|
|
|
598 ngx_time_update(0, 0);
|
|
|
599 continue;
|
|
|
600 }
|
|
|
601
|
|
|
602 #endif
|
|
|
603
|
|
0
|
604 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
605
|
|
|
606 switch (event_list[i].filter) {
|
|
|
607
|
|
|
608 case EVFILT_READ:
|
|
|
609 case EVFILT_WRITE:
|
|
|
610
|
|
|
611 instance = (uintptr_t) ev & 1;
|
|
|
612 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
613
|
|
|
614 if (ev->closed || ev->instance != instance) {
|
|
|
615
|
|
|
616 /*
|
|
|
617 * the stale event from a file descriptor
|
|
|
618 * that was just closed in this iteration
|
|
|
619 */
|
|
|
620
|
|
|
621 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
622 "kevent: stale event %p", ev);
|
|
0
|
623 continue;
|
|
|
624 }
|
|
|
625
|
|
|
626 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
627 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
628 }
|
|
|
629
|
|
58
|
630 if (ev->oneshot) {
|
|
|
631 ev->active = 0;
|
|
|
632 }
|
|
|
633
|
|
0
|
634 #if (NGX_THREADS)
|
|
|
635
|
|
112
|
636 if ((flags & NGX_POST_THREAD_EVENTS) && !ev->accept) {
|
|
0
|
637 ev->posted_ready = 1;
|
|
|
638 ev->posted_available = event_list[i].data;
|
|
|
639
|
|
|
640 if (event_list[i].flags & EV_EOF) {
|
|
|
641 ev->posted_eof = 1;
|
|
|
642 ev->posted_errno = event_list[i].fflags;
|
|
|
643 }
|
|
|
644
|
|
112
|
645 ngx_locked_post_event(ev, &ngx_posted_events);
|
|
0
|
646
|
|
|
647 continue;
|
|
|
648 }
|
|
|
649
|
|
|
650 #endif
|
|
|
651
|
|
|
652 ev->available = event_list[i].data;
|
|
|
653
|
|
|
654 if (event_list[i].flags & EV_EOF) {
|
|
|
655 ev->pending_eof = 1;
|
|
|
656 ev->kq_errno = event_list[i].fflags;
|
|
|
657 }
|
|
|
658
|
|
|
659 ev->ready = 1;
|
|
|
660
|
|
|
661 break;
|
|
|
662
|
|
|
663 case EVFILT_VNODE:
|
|
|
664 ev->kq_vnode = 1;
|
|
|
665
|
|
|
666 break;
|
|
|
667
|
|
|
668 case EVFILT_AIO:
|
|
|
669 ev->complete = 1;
|
|
|
670 ev->ready = 1;
|
|
|
671
|
|
|
672 break;
|
|
|
673
|
|
|
674 default:
|
|
|
675 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
676 "unexpected kevent() filter %d",
|
|
|
677 event_list[i].filter);
|
|
|
678 continue;
|
|
|
679 }
|
|
|
680
|
|
112
|
681 if (flags & NGX_POST_EVENTS) {
|
|
|
682 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events:
|
|
|
683 &ngx_posted_events);
|
|
|
684 ngx_locked_post_event(ev, queue);
|
|
0
|
685
|
|
|
686 continue;
|
|
|
687 }
|
|
|
688
|
|
58
|
689 ev->handler(ev);
|
|
0
|
690 }
|
|
|
691
|
|
112
|
692 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
0
|
693
|
|
|
694 return NGX_OK;
|
|
|
695 }
|
|
|
696
|
|
|
697
|
|
48
|
698 static ngx_int_t
|
|
|
699 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
0
|
700 {
|
|
|
701 int n;
|
|
|
702 ngx_int_t rc;
|
|
|
703 ngx_err_t err;
|
|
|
704 struct timespec ts;
|
|
|
705 struct kevent *changes;
|
|
|
706
|
|
112
|
707 ngx_mutex_lock(kevent_mutex);
|
|
0
|
708
|
|
112
|
709 ngx_mutex_lock(list_mutex);
|
|
0
|
710
|
|
|
711 if (nchanges == 0) {
|
|
|
712 ngx_mutex_unlock(list_mutex);
|
|
|
713 ngx_mutex_unlock(kevent_mutex);
|
|
|
714 return NGX_OK;
|
|
|
715 }
|
|
|
716
|
|
|
717 changes = change_list;
|
|
|
718 if (change_list == change_list0) {
|
|
|
719 change_list = change_list1;
|
|
|
720 } else {
|
|
|
721 change_list = change_list0;
|
|
|
722 }
|
|
|
723
|
|
324
|
724 n = (int) nchanges;
|
|
0
|
725 nchanges = 0;
|
|
|
726
|
|
|
727 ngx_mutex_unlock(list_mutex);
|
|
|
728
|
|
|
729 ts.tv_sec = 0;
|
|
|
730 ts.tv_nsec = 0;
|
|
|
731
|
|
|
732 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
733 "kevent changes: %d", n);
|
|
|
734
|
|
|
735 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
736 err = ngx_errno;
|
|
|
737 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
738 cycle->log, err, "kevent() failed");
|
|
|
739 rc = NGX_ERROR;
|
|
|
740
|
|
|
741 } else {
|
|
|
742 rc = NGX_OK;
|
|
|
743 }
|
|
|
744
|
|
|
745 ngx_mutex_unlock(kevent_mutex);
|
|
|
746
|
|
|
747 return rc;
|
|
|
748 }
|
|
|
749
|
|
|
750
|
|
48
|
751 static ngx_inline void
|
|
|
752 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
0
|
753 {
|
|
|
754 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
755 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
756 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
757 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
758 kev->ident, kev->filter,
|
|
|
759 kev->flags, kev->fflags,
|
|
|
760 kev->data, kev->udata);
|
|
|
761 }
|
|
|
762
|
|
|
763
|
|
48
|
764 static void *
|
|
|
765 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
0
|
766 {
|
|
|
767 ngx_kqueue_conf_t *kcf;
|
|
|
768
|
|
50
|
769 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
|
770 if (kcf == NULL) {
|
|
505
|
771 return NULL;
|
|
50
|
772 }
|
|
0
|
773
|
|
|
774 kcf->changes = NGX_CONF_UNSET;
|
|
|
775 kcf->events = NGX_CONF_UNSET;
|
|
|
776
|
|
|
777 return kcf;
|
|
|
778 }
|
|
|
779
|
|
|
780
|
|
48
|
781 static char *
|
|
|
782 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
783 {
|
|
|
784 ngx_kqueue_conf_t *kcf = conf;
|
|
|
785
|
|
324
|
786 ngx_conf_init_uint_value(kcf->changes, 512);
|
|
|
787 ngx_conf_init_uint_value(kcf->events, 512);
|
|
0
|
788
|
|
|
789 return NGX_CONF_OK;
|
|
|
790 }
|
