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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_kqueue_module.h>
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11
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12
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13 typedef struct {
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14 int changes;
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15 int events;
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16 } ngx_kqueue_conf_t;
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17
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18
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112
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19 static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer);
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0
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20 static void ngx_kqueue_done(ngx_cycle_t *cycle);
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21 static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags);
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22 static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags);
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23 static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags);
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24 static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try);
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112
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25 static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
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26 ngx_uint_t flags);
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0
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27 static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
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48
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28 struct kevent *kev);
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0
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29
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30 static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
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31 static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
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32
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33
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34 int ngx_kqueue = -1;
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35
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36 /*
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37 * The "change_list" should be declared as ngx_thread_volatile.
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38 * However, the use of the change_list is localized in kqueue functions and
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39 * is protected by the mutex so even the "icc -ipo" should not build the code
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40 * with the race condition. Thus we avoid the declaration to make a more
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41 * readable code.
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42 */
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43
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44 static struct kevent *change_list, *change_list0, *change_list1;
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45 static struct kevent *event_list;
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46 static int max_changes, nchanges, nevents;
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47
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48 #if (NGX_THREADS)
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49 static ngx_mutex_t *list_mutex;
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50 static ngx_mutex_t *kevent_mutex;
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51 #endif
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52
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53
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54
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55 static ngx_str_t kqueue_name = ngx_string("kqueue");
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56
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57 static ngx_command_t ngx_kqueue_commands[] = {
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58
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48
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59 { ngx_string("kqueue_changes"),
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60 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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61 ngx_conf_set_num_slot,
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62 0,
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63 offsetof(ngx_kqueue_conf_t, changes),
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64 NULL },
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0
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65
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48
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66 { ngx_string("kqueue_events"),
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67 NGX_EVENT_CONF|NGX_CONF_TAKE1,
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68 ngx_conf_set_num_slot,
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69 0,
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70 offsetof(ngx_kqueue_conf_t, events),
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71 NULL },
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0
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72
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48
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73 ngx_null_command
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0
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74 };
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75
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76
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77 ngx_event_module_t ngx_kqueue_module_ctx = {
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78 &kqueue_name,
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79 ngx_kqueue_create_conf, /* create configuration */
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80 ngx_kqueue_init_conf, /* init configuration */
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81
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82 {
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83 ngx_kqueue_add_event, /* add an event */
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84 ngx_kqueue_del_event, /* delete an event */
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85 ngx_kqueue_add_event, /* enable an event */
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86 ngx_kqueue_del_event, /* disable an event */
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87 NULL, /* add an connection */
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88 NULL, /* delete an connection */
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89 ngx_kqueue_process_changes, /* process the changes */
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90 ngx_kqueue_process_events, /* process the events */
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91 ngx_kqueue_init, /* init the events */
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92 ngx_kqueue_done /* done the events */
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93 }
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94
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95 };
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96
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97 ngx_module_t ngx_kqueue_module = {
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58
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98 NGX_MODULE_V1,
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0
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99 &ngx_kqueue_module_ctx, /* module context */
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100 ngx_kqueue_commands, /* module directives */
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101 NGX_EVENT_MODULE, /* module type */
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90
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102 NULL, /* init master */
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0
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103 NULL, /* init module */
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90
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104 NULL, /* init process */
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105 NULL, /* init thread */
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106 NULL, /* exit thread */
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107 NULL, /* exit process */
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108 NULL, /* exit master */
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109 NGX_MODULE_V1_PADDING
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0
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110 };
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111
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112
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113
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48
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114 static ngx_int_t
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112
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115 ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
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0
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116 {
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114
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117 ngx_kqueue_conf_t *kcf;
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0
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118 struct timespec ts;
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114
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119 #if (NGX_HAVE_TIMER_EVENT)
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120 struct kevent kev;
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121 #endif
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0
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122
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123 kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
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124
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125 if (ngx_kqueue == -1) {
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126 ngx_kqueue = kqueue();
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127
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128 if (ngx_kqueue == -1) {
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129 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
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130 "kqueue() failed");
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131 return NGX_ERROR;
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132 }
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133
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134 #if (NGX_THREADS)
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135
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50
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136 list_mutex = ngx_mutex_init(cycle->log, 0);
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137 if (list_mutex == NULL) {
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0
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138 return NGX_ERROR;
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139 }
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140
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50
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141 kevent_mutex = ngx_mutex_init(cycle->log, 0);
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142 if (kevent_mutex == NULL) {
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0
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143 return NGX_ERROR;
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144 }
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145
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146 #endif
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147 }
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148
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149 if (max_changes < kcf->changes) {
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150 if (nchanges) {
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151 ts.tv_sec = 0;
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152 ts.tv_nsec = 0;
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153
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154 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
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155 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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156 "kevent() failed");
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157 return NGX_ERROR;
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158 }
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159 nchanges = 0;
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160 }
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161
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162 if (change_list0) {
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163 ngx_free(change_list0);
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164 }
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165
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166 change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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167 cycle->log);
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168 if (change_list0 == NULL) {
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169 return NGX_ERROR;
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170 }
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171
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172 if (change_list1) {
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173 ngx_free(change_list1);
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174 }
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175
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176 change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
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177 cycle->log);
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178 if (change_list1 == NULL) {
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179 return NGX_ERROR;
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180 }
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181
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182 change_list = change_list0;
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183 }
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184
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185 max_changes = kcf->changes;
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186
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187 if (nevents < kcf->events) {
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188 if (event_list) {
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189 ngx_free(event_list);
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190 }
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191
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192 event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
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193 if (event_list == NULL) {
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194 return NGX_ERROR;
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195 }
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196 }
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197
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112
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198 ngx_event_flags = 0;
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199
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200 #if (NGX_HAVE_TIMER_EVENT)
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201
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202 if (timer) {
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203 kev.ident = 0;
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204 kev.filter = EVFILT_TIMER;
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205 kev.flags = EV_ADD|EV_ENABLE;
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206 kev.fflags = 0;
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207 kev.data = timer;
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208 kev.udata = 0;
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209
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210 ts.tv_sec = 0;
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211 ts.tv_nsec = 0;
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212
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213 if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
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214 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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215 "kevent(EVFILT_TIMER) failed");
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216 return NGX_ERROR;
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217 }
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218
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219 ngx_event_flags |= NGX_USE_TIMER_EVENT;
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220 }
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221
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222 #endif
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223
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224 ngx_event_flags |= NGX_USE_ONESHOT_EVENT|NGX_USE_KQUEUE_EVENT;
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225
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226 #if (NGX_HAVE_CLEAR_EVENT)
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227 ngx_event_flags |= NGX_USE_CLEAR_EVENT;
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228 #else
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229 ngx_event_flags |= NGX_USE_LEVEL_EVENT;
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230 #endif
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231
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232 #if (NGX_HAVE_LOWAT_EVENT)
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233 ngx_event_flags |= NGX_USE_LOWAT_EVENT;
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234 #endif
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235
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0
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236 nevents = kcf->events;
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237
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238 ngx_io = ngx_os_io;
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239
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240 ngx_event_actions = ngx_kqueue_module_ctx.actions;
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241
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242 return NGX_OK;
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243 }
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244
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245
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48
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246 static void
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247 ngx_kqueue_done(ngx_cycle_t *cycle)
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0
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248 {
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249 if (close(ngx_kqueue) == -1) {
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250 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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251 "kqueue close() failed");
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252 }
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253
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254 ngx_kqueue = -1;
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255
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256 #if (NGX_THREADS)
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257 ngx_mutex_destroy(kevent_mutex);
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258 ngx_mutex_destroy(list_mutex);
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259 #endif
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260
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261 ngx_free(change_list1);
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262 ngx_free(change_list0);
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263 ngx_free(event_list);
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264
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265 change_list1 = NULL;
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266 change_list0 = NULL;
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267 change_list = NULL;
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268 event_list = NULL;
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269 max_changes = 0;
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270 nchanges = 0;
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271 nevents = 0;
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272 }
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273
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274
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48
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275 static ngx_int_t
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276 ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
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0
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277 {
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278 ngx_int_t rc;
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279 ngx_event_t *e;
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280 ngx_connection_t *c;
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281
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282 ev->active = 1;
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283 ev->disabled = 0;
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284 ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
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285
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112
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286 ngx_mutex_lock(list_mutex);
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0
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287
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4
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288 #if 1
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289
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0
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290 if (nchanges > 0
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291 && ev->index < (u_int) nchanges
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292 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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293 == (uintptr_t) ev)
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294 {
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295 if (change_list[ev->index].flags == EV_DISABLE) {
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296
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297 /*
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298 * if the EV_DISABLE is still not passed to a kernel
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299 * we will not pass it
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300 */
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301
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302 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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303 "kevent activated: %d: ft:%d",
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304 ngx_event_ident(ev->data), event);
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305
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306 if (ev->index < (u_int) --nchanges) {
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4
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307 e = (ngx_event_t *)
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308 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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309 change_list[ev->index] = change_list[nchanges];
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310 e->index = ev->index;
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311 }
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312
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313 ngx_mutex_unlock(list_mutex);
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314
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315 return NGX_OK;
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316 }
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317
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318 c = ev->data;
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319
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320 ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
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321 "previous event on #%d were not passed in kernel", c->fd);
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322
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323 ngx_mutex_unlock(list_mutex);
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324
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325 return NGX_ERROR;
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326 }
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327
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4
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328 #endif
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329
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0
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330 rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
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331
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332 ngx_mutex_unlock(list_mutex);
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333
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334 return rc;
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335 }
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336
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337
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48
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338 static ngx_int_t
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339 ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
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0
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340 {
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341 ngx_int_t rc;
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342 ngx_event_t *e;
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343
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344 ev->active = 0;
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345 ev->disabled = 0;
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346
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112
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347 ngx_mutex_lock(list_mutex);
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0
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348
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4
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349 #if 1
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350
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0
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351 if (nchanges > 0
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352 && ev->index < (u_int) nchanges
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353 && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
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354 == (uintptr_t) ev)
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355 {
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356 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
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357 "kevent deleted: %d: ft:%d",
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358 ngx_event_ident(ev->data), event);
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359
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360 /* if the event is still not passed to a kernel we will not pass it */
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361
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362 if (ev->index < (u_int) --nchanges) {
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4
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363 e = (ngx_event_t *)
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364 ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
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0
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365 change_list[ev->index] = change_list[nchanges];
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366 e->index = ev->index;
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367 }
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368
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369 ngx_mutex_unlock(list_mutex);
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370
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371 return NGX_OK;
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372 }
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373
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4
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374 #endif
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375
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0
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376 /*
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377 * when the file descriptor is closed the kqueue automatically deletes
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378 * its filters so we do not need to delete explicity the event
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379 * before the closing the file descriptor.
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380 */
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381
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382 if (flags & NGX_CLOSE_EVENT) {
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383 ngx_mutex_unlock(list_mutex);
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384 return NGX_OK;
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385 }
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386
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387 if (flags & NGX_DISABLE_EVENT) {
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388 ev->disabled = 1;
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389 }
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390
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391 rc = ngx_kqueue_set_event(ev, event,
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392 flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
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393
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394 ngx_mutex_unlock(list_mutex);
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395
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396 return rc;
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397 }
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398
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399
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48
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400 static ngx_int_t
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401 ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
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0
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402 {
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403 struct kevent *kev;
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404 struct timespec ts;
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405 ngx_connection_t *c;
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406
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407 c = ev->data;
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408
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409 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
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10
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410 "kevent set event: %d: ft:%d fl:%04Xd",
|
|
0
|
411 c->fd, filter, flags);
|
|
|
412
|
|
|
413 if (nchanges >= max_changes) {
|
|
|
414 ngx_log_error(NGX_LOG_WARN, ev->log, 0,
|
|
|
415 "kqueue change list is filled up");
|
|
|
416
|
|
|
417 ts.tv_sec = 0;
|
|
|
418 ts.tv_nsec = 0;
|
|
|
419
|
|
|
420 if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
|
|
|
421 ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
|
|
|
422 return NGX_ERROR;
|
|
|
423 }
|
|
|
424
|
|
|
425 nchanges = 0;
|
|
|
426 }
|
|
|
427
|
|
|
428 kev = &change_list[nchanges];
|
|
|
429
|
|
|
430 kev->ident = c->fd;
|
|
|
431 kev->filter = filter;
|
|
|
432 kev->flags = flags;
|
|
38
|
433 kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
|
|
0
|
434
|
|
|
435 if (filter == EVFILT_VNODE) {
|
|
|
436 kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
|
|
|
437 |NOTE_ATTRIB|NOTE_RENAME
|
|
|
438 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
|
|
|
439 || __FreeBSD_version >= 500018
|
|
|
440 |NOTE_REVOKE
|
|
|
441 #endif
|
|
|
442 ;
|
|
|
443 kev->data = 0;
|
|
|
444
|
|
|
445 } else {
|
|
4
|
446 #if (NGX_HAVE_LOWAT_EVENT)
|
|
0
|
447 if (flags & NGX_LOWAT_EVENT) {
|
|
|
448 kev->fflags = NOTE_LOWAT;
|
|
|
449 kev->data = ev->available;
|
|
|
450
|
|
|
451 } else {
|
|
|
452 kev->fflags = 0;
|
|
|
453 kev->data = 0;
|
|
|
454 }
|
|
|
455 #else
|
|
|
456 kev->fflags = 0;
|
|
|
457 kev->data = 0;
|
|
|
458 #endif
|
|
|
459 }
|
|
|
460
|
|
|
461 ev->index = nchanges;
|
|
|
462 nchanges++;
|
|
|
463
|
|
|
464 return NGX_OK;
|
|
|
465 }
|
|
|
466
|
|
|
467
|
|
48
|
468 static ngx_int_t
|
|
112
|
469 ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
|
|
|
470 ngx_uint_t flags)
|
|
0
|
471 {
|
|
112
|
472 int events, n;
|
|
|
473 ngx_int_t i, instance;
|
|
|
474 ngx_uint_t level;
|
|
|
475 ngx_err_t err;
|
|
|
476 ngx_event_t *ev, **queue;
|
|
|
477 struct timespec ts, *tp;
|
|
0
|
478
|
|
|
479 if (ngx_threaded) {
|
|
|
480 if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
|
|
|
481 return NGX_ERROR;
|
|
|
482 }
|
|
|
483
|
|
|
484 n = 0;
|
|
|
485
|
|
|
486 } else {
|
|
|
487 n = nchanges;
|
|
|
488 nchanges = 0;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (timer == NGX_TIMER_INFINITE) {
|
|
|
492 tp = NULL;
|
|
|
493
|
|
|
494 } else {
|
|
|
495 ts.tv_sec = timer / 1000;
|
|
|
496 ts.tv_nsec = (timer % 1000) * 1000000;
|
|
|
497 tp = &ts;
|
|
|
498 }
|
|
|
499
|
|
|
500 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
110
|
501 "kevent timer: %M, changes: %d", timer, n);
|
|
0
|
502
|
|
|
503 events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
|
|
|
504
|
|
|
505 if (events == -1) {
|
|
|
506 err = ngx_errno;
|
|
|
507 } else {
|
|
|
508 err = 0;
|
|
|
509 }
|
|
|
510
|
|
112
|
511 if (flags & NGX_UPDATE_TIME) {
|
|
|
512 ngx_time_update(0, 0);
|
|
|
513 }
|
|
0
|
514
|
|
|
515 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
516 "kevent events: %d", events);
|
|
|
517
|
|
112
|
518 if (err) {
|
|
|
519 if (err == NGX_EINTR) {
|
|
|
520
|
|
|
521 if (ngx_event_timer_alarm) {
|
|
|
522 ngx_event_timer_alarm = 0;
|
|
|
523 return NGX_OK;
|
|
|
524 }
|
|
0
|
525
|
|
112
|
526 level = NGX_LOG_INFO;
|
|
|
527
|
|
|
528 } else {
|
|
|
529 level = NGX_LOG_ALERT;
|
|
|
530 }
|
|
|
531
|
|
|
532 ngx_log_error(level, cycle->log, err, "kevent() failed");
|
|
0
|
533 return NGX_ERROR;
|
|
|
534 }
|
|
|
535
|
|
116
|
536 if (events == 0) {
|
|
|
537 if (timer != NGX_TIMER_INFINITE) {
|
|
|
538 return NGX_OK;
|
|
|
539 }
|
|
0
|
540
|
|
116
|
541 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
542 "kevent() returned no events without timeout");
|
|
|
543 return NGX_ERROR;
|
|
112
|
544 }
|
|
0
|
545
|
|
112
|
546 ngx_mutex_lock(ngx_posted_events_mutex);
|
|
0
|
547
|
|
|
548 for (i = 0; i < events; i++) {
|
|
|
549
|
|
|
550 ngx_kqueue_dump_event(cycle->log, &event_list[i]);
|
|
|
551
|
|
|
552 if (event_list[i].flags & EV_ERROR) {
|
|
|
553 ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
|
|
|
554 "kevent() error on %d", event_list[i].ident);
|
|
|
555 continue;
|
|
|
556 }
|
|
|
557
|
|
112
|
558 #if (NGX_HAVE_TIMER_EVENT)
|
|
|
559
|
|
|
560 if (event_list[i].filter == EVFILT_TIMER) {
|
|
|
561 ngx_time_update(0, 0);
|
|
|
562 continue;
|
|
|
563 }
|
|
|
564
|
|
|
565 #endif
|
|
|
566
|
|
0
|
567 ev = (ngx_event_t *) event_list[i].udata;
|
|
|
568
|
|
|
569 switch (event_list[i].filter) {
|
|
|
570
|
|
|
571 case EVFILT_READ:
|
|
|
572 case EVFILT_WRITE:
|
|
|
573
|
|
|
574 instance = (uintptr_t) ev & 1;
|
|
|
575 ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
|
|
|
576
|
|
|
577 if (ev->closed || ev->instance != instance) {
|
|
|
578
|
|
|
579 /*
|
|
|
580 * the stale event from a file descriptor
|
|
|
581 * that was just closed in this iteration
|
|
|
582 */
|
|
|
583
|
|
|
584 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
10
|
585 "kevent: stale event %p", ev);
|
|
0
|
586 continue;
|
|
|
587 }
|
|
|
588
|
|
|
589 if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
590 ngx_kqueue_dump_event(ev->log, &event_list[i]);
|
|
|
591 }
|
|
|
592
|
|
58
|
593 if (ev->oneshot) {
|
|
|
594 ev->active = 0;
|
|
|
595 }
|
|
|
596
|
|
0
|
597 #if (NGX_THREADS)
|
|
|
598
|
|
112
|
599 if ((flags & NGX_POST_THREAD_EVENTS) && !ev->accept) {
|
|
0
|
600 ev->posted_ready = 1;
|
|
|
601 ev->posted_available = event_list[i].data;
|
|
|
602
|
|
|
603 if (event_list[i].flags & EV_EOF) {
|
|
|
604 ev->posted_eof = 1;
|
|
|
605 ev->posted_errno = event_list[i].fflags;
|
|
|
606 }
|
|
|
607
|
|
112
|
608 ngx_locked_post_event(ev, &ngx_posted_events);
|
|
0
|
609
|
|
|
610 continue;
|
|
|
611 }
|
|
|
612
|
|
|
613 #endif
|
|
|
614
|
|
|
615 ev->available = event_list[i].data;
|
|
|
616
|
|
|
617 if (event_list[i].flags & EV_EOF) {
|
|
|
618 ev->pending_eof = 1;
|
|
|
619 ev->kq_errno = event_list[i].fflags;
|
|
|
620 }
|
|
|
621
|
|
|
622 ev->ready = 1;
|
|
|
623
|
|
|
624 break;
|
|
|
625
|
|
|
626 case EVFILT_VNODE:
|
|
|
627 ev->kq_vnode = 1;
|
|
|
628
|
|
|
629 break;
|
|
|
630
|
|
|
631 case EVFILT_AIO:
|
|
|
632 ev->complete = 1;
|
|
|
633 ev->ready = 1;
|
|
|
634
|
|
|
635 break;
|
|
|
636
|
|
|
637 default:
|
|
|
638 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
|
|
|
639 "unexpected kevent() filter %d",
|
|
|
640 event_list[i].filter);
|
|
|
641 continue;
|
|
|
642 }
|
|
|
643
|
|
112
|
644 if (flags & NGX_POST_EVENTS) {
|
|
|
645 queue = (ngx_event_t **) (ev->accept ? &ngx_posted_accept_events:
|
|
|
646 &ngx_posted_events);
|
|
|
647 ngx_locked_post_event(ev, queue);
|
|
0
|
648
|
|
|
649 continue;
|
|
|
650 }
|
|
|
651
|
|
58
|
652 ev->handler(ev);
|
|
0
|
653 }
|
|
|
654
|
|
112
|
655 ngx_mutex_unlock(ngx_posted_events_mutex);
|
|
0
|
656
|
|
|
657 return NGX_OK;
|
|
|
658 }
|
|
|
659
|
|
|
660
|
|
48
|
661 static ngx_int_t
|
|
|
662 ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
|
|
0
|
663 {
|
|
|
664 int n;
|
|
|
665 ngx_int_t rc;
|
|
|
666 ngx_err_t err;
|
|
|
667 struct timespec ts;
|
|
|
668 struct kevent *changes;
|
|
|
669
|
|
112
|
670 ngx_mutex_lock(kevent_mutex);
|
|
0
|
671
|
|
112
|
672 ngx_mutex_lock(list_mutex);
|
|
0
|
673
|
|
|
674 if (nchanges == 0) {
|
|
|
675 ngx_mutex_unlock(list_mutex);
|
|
|
676 ngx_mutex_unlock(kevent_mutex);
|
|
|
677 return NGX_OK;
|
|
|
678 }
|
|
|
679
|
|
|
680 changes = change_list;
|
|
|
681 if (change_list == change_list0) {
|
|
|
682 change_list = change_list1;
|
|
|
683 } else {
|
|
|
684 change_list = change_list0;
|
|
|
685 }
|
|
|
686
|
|
|
687 n = nchanges;
|
|
|
688 nchanges = 0;
|
|
|
689
|
|
|
690 ngx_mutex_unlock(list_mutex);
|
|
|
691
|
|
|
692 ts.tv_sec = 0;
|
|
|
693 ts.tv_nsec = 0;
|
|
|
694
|
|
|
695 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
|
|
|
696 "kevent changes: %d", n);
|
|
|
697
|
|
|
698 if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
|
|
|
699 err = ngx_errno;
|
|
|
700 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
|
|
|
701 cycle->log, err, "kevent() failed");
|
|
|
702 rc = NGX_ERROR;
|
|
|
703
|
|
|
704 } else {
|
|
|
705 rc = NGX_OK;
|
|
|
706 }
|
|
|
707
|
|
|
708 ngx_mutex_unlock(kevent_mutex);
|
|
|
709
|
|
|
710 return rc;
|
|
|
711 }
|
|
|
712
|
|
|
713
|
|
48
|
714 static ngx_inline void
|
|
|
715 ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
|
|
0
|
716 {
|
|
|
717 ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
|
|
|
718 (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
|
|
10
|
719 "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p":
|
|
|
720 "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
|
|
0
|
721 kev->ident, kev->filter,
|
|
|
722 kev->flags, kev->fflags,
|
|
|
723 kev->data, kev->udata);
|
|
|
724 }
|
|
|
725
|
|
|
726
|
|
48
|
727 static void *
|
|
|
728 ngx_kqueue_create_conf(ngx_cycle_t *cycle)
|
|
0
|
729 {
|
|
|
730 ngx_kqueue_conf_t *kcf;
|
|
|
731
|
|
50
|
732 kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
|
|
|
733 if (kcf == NULL) {
|
|
|
734 return NGX_CONF_ERROR;
|
|
|
735 }
|
|
0
|
736
|
|
|
737 kcf->changes = NGX_CONF_UNSET;
|
|
|
738 kcf->events = NGX_CONF_UNSET;
|
|
|
739
|
|
|
740 return kcf;
|
|
|
741 }
|
|
|
742
|
|
|
743
|
|
48
|
744 static char *
|
|
|
745 ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
0
|
746 {
|
|
|
747 ngx_kqueue_conf_t *kcf = conf;
|
|
|
748
|
|
|
749 ngx_conf_init_value(kcf->changes, 512);
|
|
|
750 ngx_conf_init_value(kcf->events, 512);
|
|
|
751
|
|
|
752 return NGX_CONF_OK;
|
|
|
753 }
|
