Mercurial > hg > nginx-quic
annotate src/event/modules/ngx_rtsig_module.c @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 05 Mar 2012 13:17:56 +0000 |
parents | 4919fb357a5d |
children | 4c36e15651f7 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 |
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12 |
469 | 13 #if (NGX_TEST_BUILD_RTSIG) |
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14 |
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15 #ifdef SIGRTMIN |
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16 #define si_fd _reason.__spare__.__spare2__[0] |
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17 #else |
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18 #define SIGRTMIN 33 |
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19 #define si_fd __spare__[0] |
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20 #endif |
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21 |
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22 #define F_SETSIG 10 |
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23 #define KERN_RTSIGNR 30 |
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24 #define KERN_RTSIGMAX 31 |
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25 |
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26 int sigtimedwait(const sigset_t *set, siginfo_t *info, |
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27 const struct timespec *timeout) |
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28 { |
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29 return -1; |
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30 } |
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31 |
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32 int ngx_linux_rtsig_max; |
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33 |
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34 #endif |
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35 |
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36 |
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37 typedef struct { |
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38 ngx_uint_t signo; |
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39 ngx_uint_t overflow_events; |
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40 ngx_uint_t overflow_test; |
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41 ngx_uint_t overflow_threshold; |
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42 } ngx_rtsig_conf_t; |
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43 |
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45 extern ngx_event_module_t ngx_poll_module_ctx; |
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46 |
563 | 47 static ngx_int_t ngx_rtsig_init(ngx_cycle_t *cycle, ngx_msec_t timer); |
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48 static void ngx_rtsig_done(ngx_cycle_t *cycle); |
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49 static ngx_int_t ngx_rtsig_add_connection(ngx_connection_t *c); |
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50 static ngx_int_t ngx_rtsig_del_connection(ngx_connection_t *c, |
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51 ngx_uint_t flags); |
563 | 52 static ngx_int_t ngx_rtsig_process_events(ngx_cycle_t *cycle, |
53 ngx_msec_t timer, ngx_uint_t flags); | |
54 static ngx_int_t ngx_rtsig_process_overflow(ngx_cycle_t *cycle, | |
55 ngx_msec_t timer, ngx_uint_t flags); | |
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56 |
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57 static void *ngx_rtsig_create_conf(ngx_cycle_t *cycle); |
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58 static char *ngx_rtsig_init_conf(ngx_cycle_t *cycle, void *conf); |
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59 static char *ngx_check_ngx_overflow_threshold_bounds(ngx_conf_t *cf, |
499 | 60 void *post, void *data); |
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61 |
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62 |
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63 static sigset_t set; |
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64 static ngx_uint_t overflow, overflow_current; |
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65 static struct pollfd *overflow_list; |
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66 |
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67 |
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68 static ngx_str_t rtsig_name = ngx_string("rtsig"); |
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69 |
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70 static ngx_conf_num_bounds_t ngx_overflow_threshold_bounds = { |
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71 ngx_check_ngx_overflow_threshold_bounds, 2, 10 |
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72 }; |
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73 |
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74 |
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75 static ngx_command_t ngx_rtsig_commands[] = { |
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76 |
499 | 77 { ngx_string("rtsig_signo"), |
78 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
79 ngx_conf_set_num_slot, | |
80 0, | |
81 offsetof(ngx_rtsig_conf_t, signo), | |
82 NULL }, | |
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83 |
499 | 84 { ngx_string("rtsig_overflow_events"), |
85 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
86 ngx_conf_set_num_slot, | |
87 0, | |
88 offsetof(ngx_rtsig_conf_t, overflow_events), | |
89 NULL }, | |
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90 |
499 | 91 { ngx_string("rtsig_overflow_test"), |
92 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
93 ngx_conf_set_num_slot, | |
94 0, | |
95 offsetof(ngx_rtsig_conf_t, overflow_test), | |
96 NULL }, | |
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97 |
499 | 98 { ngx_string("rtsig_overflow_threshold"), |
99 NGX_EVENT_CONF|NGX_CONF_TAKE1, | |
100 ngx_conf_set_num_slot, | |
101 0, | |
102 offsetof(ngx_rtsig_conf_t, overflow_threshold), | |
103 &ngx_overflow_threshold_bounds }, | |
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104 |
499 | 105 ngx_null_command |
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106 }; |
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107 |
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108 |
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109 ngx_event_module_t ngx_rtsig_module_ctx = { |
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110 &rtsig_name, |
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111 ngx_rtsig_create_conf, /* create configuration */ |
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112 ngx_rtsig_init_conf, /* init configuration */ |
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113 |
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114 { |
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115 NULL, /* add an event */ |
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116 NULL, /* delete an event */ |
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117 NULL, /* enable an event */ |
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118 NULL, /* disable an event */ |
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119 ngx_rtsig_add_connection, /* add an connection */ |
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120 ngx_rtsig_del_connection, /* delete an connection */ |
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121 NULL, /* process the changes */ |
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122 ngx_rtsig_process_events, /* process the events */ |
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123 ngx_rtsig_init, /* init the events */ |
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124 ngx_rtsig_done, /* done the events */ |
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125 } |
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126 |
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127 }; |
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128 |
260
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129 ngx_module_t ngx_rtsig_module = { |
509 | 130 NGX_MODULE_V1, |
260
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131 &ngx_rtsig_module_ctx, /* module context */ |
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132 ngx_rtsig_commands, /* module directives */ |
499 | 133 NGX_EVENT_MODULE, /* module type */ |
541 | 134 NULL, /* init master */ |
499 | 135 NULL, /* init module */ |
541 | 136 NULL, /* init process */ |
137 NULL, /* init thread */ | |
138 NULL, /* exit thread */ | |
139 NULL, /* exit process */ | |
140 NULL, /* exit master */ | |
141 NGX_MODULE_V1_PADDING | |
246
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142 }; |
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143 |
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144 |
499 | 145 static ngx_int_t |
563 | 146 ngx_rtsig_init(ngx_cycle_t *cycle, ngx_msec_t timer) |
60
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147 { |
260
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148 ngx_rtsig_conf_t *rtscf; |
246
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149 |
260
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150 rtscf = ngx_event_get_conf(cycle->conf_ctx, ngx_rtsig_module); |
246
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151 |
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152 sigemptyset(&set); |
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153 sigaddset(&set, (int) rtscf->signo); |
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154 sigaddset(&set, (int) rtscf->signo + 1); |
246
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155 sigaddset(&set, SIGIO); |
563 | 156 sigaddset(&set, SIGALRM); |
246
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157 |
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158 if (sigprocmask(SIG_BLOCK, &set, NULL) == -1) { |
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159 ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, |
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160 "sigprocmask() failed"); |
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161 return NGX_ERROR; |
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162 } |
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163 |
351
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350
diff
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164 if (overflow_list) { |
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165 ngx_free(overflow_list); |
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166 } |
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167 |
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168 overflow_list = ngx_alloc(sizeof(struct pollfd) * rtscf->overflow_events, |
af4c6b45a687
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169 cycle->log); |
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170 if (overflow_list == NULL) { |
af4c6b45a687
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171 return NGX_ERROR; |
af4c6b45a687
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172 } |
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|
173 |
246
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174 ngx_io = ngx_os_io; |
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175 |
260
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176 ngx_event_actions = ngx_rtsig_module_ctx.actions; |
246
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177 |
543 | 178 ngx_event_flags = NGX_USE_RTSIG_EVENT |
179 |NGX_USE_GREEDY_EVENT | |
180 |NGX_USE_FD_EVENT; | |
246
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181 |
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182 return NGX_OK; |
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183 } |
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nginx-0.0.1-2004-01-30-20:39:00 import
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184 |
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185 |
499 | 186 static void |
187 ngx_rtsig_done(ngx_cycle_t *cycle) | |
246
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188 { |
452 | 189 ngx_free(overflow_list); |
190 | |
191 overflow_list = NULL; | |
246
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192 } |
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193 |
60
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194 |
499 | 195 static ngx_int_t |
196 ngx_rtsig_add_connection(ngx_connection_t *c) | |
246
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197 { |
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198 ngx_uint_t signo; |
260
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199 ngx_rtsig_conf_t *rtscf; |
246
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200 |
349
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nginx-0.0.4-2004-06-09-20:36:55 import
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parents:
348
diff
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|
201 if (c->read->accept && c->read->disabled) { |
354
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nginx-0.0.7-2004-06-15-11:55:11 import
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352
diff
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|
202 |
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203 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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352
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|
204 "rtsig enable connection: fd:%d", c->fd); |
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nginx-0.0.7-2004-06-15-11:55:11 import
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parents:
352
diff
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|
205 |
349
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nginx-0.0.4-2004-06-09-20:36:55 import
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348
diff
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|
206 if (fcntl(c->fd, F_SETOWN, ngx_pid) == -1) { |
a958aa92f9a5
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diff
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207 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
a958aa92f9a5
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parents:
348
diff
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|
208 "fcntl(F_SETOWN) failed"); |
a958aa92f9a5
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parents:
348
diff
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|
209 return NGX_ERROR; |
a958aa92f9a5
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Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
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|
210 } |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
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|
211 |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
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348
diff
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|
212 c->read->active = 1; |
a958aa92f9a5
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|
213 c->read->disabled = 0; |
a958aa92f9a5
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parents:
348
diff
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|
214 } |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
215 |
260
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nginx-0.0.2-2004-02-17-20:53:12 import
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|
216 rtscf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_rtsig_module); |
246
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diff
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|
217 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
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parents:
328
diff
changeset
|
218 signo = rtscf->signo + c->read->instance; |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
219 |
246
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|
220 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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221 "rtsig add connection: fd:%d signo:%ui", c->fd, signo); |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
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parents:
diff
changeset
|
222 |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
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diff
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|
223 if (fcntl(c->fd, F_SETFL, O_RDWR|O_NONBLOCK|O_ASYNC) == -1) { |
246
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parents:
60
diff
changeset
|
224 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
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parents:
diff
changeset
|
225 "fcntl(O_RDWR|O_NONBLOCK|O_ASYNC) failed"); |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
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parents:
diff
changeset
|
226 return NGX_ERROR; |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
227 } |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
228 |
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|
229 if (fcntl(c->fd, F_SETSIG, (int) signo) == -1) { |
246
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parents:
60
diff
changeset
|
230 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
231 "fcntl(F_SETSIG) failed"); |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
232 return NGX_ERROR; |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
233 } |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
234 |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
235 if (fcntl(c->fd, F_SETOWN, ngx_pid) == -1) { |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
236 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
237 "fcntl(F_SETOWN) failed"); |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
238 return NGX_ERROR; |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
239 } |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
240 |
469 | 241 #if (NGX_HAVE_ONESIGFD) |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
242 if (fcntl(c->fd, F_SETAUXFL, O_ONESIGFD) == -1) { |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
243 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
244 "fcntl(F_SETAUXFL) failed"); |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
245 return NGX_ERROR; |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
246 } |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
247 #endif |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
248 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
249 c->read->active = 1; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
250 c->write->active = 1; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
251 |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
252 return NGX_OK; |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
253 } |
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
254 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
255 |
499 | 256 static ngx_int_t |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
257 ngx_rtsig_del_connection(ngx_connection_t *c, ngx_uint_t flags) |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
258 { |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
259 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
260 "rtsig del connection: fd:%d", c->fd); |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
261 |
349
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
262 if ((flags & NGX_DISABLE_EVENT) && c->read->accept) { |
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
263 |
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
264 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
265 "rtsig disable connection: fd:%d", c->fd); |
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
266 |
349
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
267 c->read->active = 0; |
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
268 c->read->disabled = 1; |
349
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
269 return NGX_OK; |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
270 } |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
271 |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
272 if (flags & NGX_CLOSE_EVENT) { |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
273 c->read->active = 0; |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
274 c->write->active = 0; |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
275 return NGX_OK; |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
276 } |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
277 |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
278 if (fcntl(c->fd, F_SETFL, O_RDWR|O_NONBLOCK) == -1) { |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
279 ngx_log_error(NGX_LOG_ALERT, c->log, ngx_errno, |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
280 "fcntl(O_RDWR|O_NONBLOCK) failed"); |
a958aa92f9a5
nginx-0.0.4-2004-06-09-20:36:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
348
diff
changeset
|
281 return NGX_ERROR; |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
282 } |
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
283 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
284 c->read->active = 0; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
285 c->write->active = 0; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
286 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
287 return NGX_OK; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
288 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
289 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
290 |
499 | 291 static ngx_int_t |
563 | 292 ngx_rtsig_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags) |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
293 { |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
294 int signo; |
501 | 295 ngx_int_t instance; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
296 ngx_err_t err; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
297 siginfo_t si; |
573 | 298 ngx_event_t *rev, *wev, **queue; |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
299 struct timespec ts, *tp; |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
300 struct sigaction sa; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
301 ngx_connection_t *c; |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
302 ngx_rtsig_conf_t *rtscf; |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
303 |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
304 if (timer == NGX_TIMER_INFINITE) { |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
305 tp = NULL; |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
306 |
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
307 } else { |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
308 ts.tv_sec = timer / 1000; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
309 ts.tv_nsec = (timer % 1000) * 1000000; |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
310 tp = &ts; |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
311 } |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
312 |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
313 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
557 | 314 "rtsig timer: %M", timer); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
315 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
316 /* Linux's sigwaitinfo() is sigtimedwait() with the NULL timeout pointer */ |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
317 |
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
318 signo = sigtimedwait(&set, &si, tp); |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
319 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
320 if (signo == -1) { |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
321 err = ngx_errno; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
322 |
382
449c4885dcd1
nginx-0.0.7-2004-07-07-23:48:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
381
diff
changeset
|
323 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, err, |
449c4885dcd1
nginx-0.0.7-2004-07-07-23:48:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
381
diff
changeset
|
324 "rtsig signo:%d", signo); |
449c4885dcd1
nginx-0.0.7-2004-07-07-23:48:31 import
Igor Sysoev <igor@sysoev.ru>
parents:
381
diff
changeset
|
325 |
567 | 326 if (flags & NGX_UPDATE_TIME) { |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
327 ngx_time_update(); |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
328 } |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
329 |
567 | 330 if (err == NGX_EAGAIN) { |
331 | |
332 /* timeout */ | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
333 |
567 | 334 if (timer != NGX_TIMER_INFINITE) { |
335 return NGX_AGAIN; | |
336 } | |
577 | 337 |
567 | 338 ngx_log_error(NGX_LOG_ALERT, cycle->log, err, |
339 "sigtimedwait() returned EAGAIN without timeout"); | |
340 return NGX_ERROR; | |
341 } | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
342 |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
343 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT, |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
344 cycle->log, err, "sigtimedwait() failed"); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
345 return NGX_ERROR; |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
346 } |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
347 |
567 | 348 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
349 "rtsig signo:%d fd:%d band:%04Xd", | |
350 signo, si.si_fd, si.si_band); | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
351 |
567 | 352 if (flags & NGX_UPDATE_TIME) { |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
353 ngx_time_update(); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
354 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
355 |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
356 rtscf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_rtsig_module); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
357 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
358 if (signo == (int) rtscf->signo || signo == (int) rtscf->signo + 1) { |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
359 |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
360 if (overflow && (ngx_uint_t) si.si_fd > overflow_current) { |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
361 return NGX_OK; |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
362 } |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
363 |
551 | 364 c = ngx_cycle->files[si.si_fd]; |
365 | |
366 if (c == NULL) { | |
563 | 367 |
551 | 368 /* the stale event */ |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
369 |
551 | 370 return NGX_OK; |
371 } | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
372 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
373 instance = signo - (int) rtscf->signo; |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
374 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
375 rev = c->read; |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
376 |
563 | 377 if (rev->instance != instance) { |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
378 |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
379 /* |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
380 * the stale event from a file descriptor |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
381 * that was just closed in this iteration |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
382 */ |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
383 |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
384 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
461 | 385 "rtsig: stale event %p", c); |
344
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
386 |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
387 return NGX_OK; |
e366ba5db8f8
nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
328
diff
changeset
|
388 } |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
389 |
563 | 390 if ((si.si_band & (POLLIN|POLLHUP|POLLERR)) && rev->active) { |
573 | 391 |
563 | 392 rev->ready = 1; |
573 | 393 |
394 if (flags & NGX_POST_EVENTS) { | |
395 queue = (ngx_event_t **) (rev->accept ? | |
396 &ngx_posted_accept_events : &ngx_posted_events); | |
397 | |
398 ngx_locked_post_event(rev, queue); | |
399 | |
577 | 400 } else { |
573 | 401 rev->handler(rev); |
402 } | |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
403 } |
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
404 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
405 wev = c->write; |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
406 |
563 | 407 if ((si.si_band & (POLLOUT|POLLHUP|POLLERR)) && wev->active) { |
573 | 408 |
563 | 409 wev->ready = 1; |
573 | 410 |
411 if (flags & NGX_POST_EVENTS) { | |
412 ngx_locked_post_event(wev, &ngx_posted_events); | |
413 | |
414 } else { | |
415 wev->handler(wev); | |
416 } | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
417 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
418 |
567 | 419 return NGX_OK; |
420 | |
563 | 421 } else if (signo == SIGALRM) { |
422 | |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
423 ngx_time_update(); |
567 | 424 |
563 | 425 return NGX_OK; |
426 | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
427 } else if (signo == SIGIO) { |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
428 |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
429 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
430 "rt signal queue overflowed"); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
431 |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
432 /* flush the RT signal queue */ |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
433 |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
434 ngx_memzero(&sa, sizeof(struct sigaction)); |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
435 sa.sa_handler = SIG_DFL; |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
436 sigemptyset(&sa.sa_mask); |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
437 |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
438 if (sigaction(rtscf->signo, &sa, NULL) == -1) { |
305
4b1a3a4acc60
nginx-0.0.3-2004-04-02-19:13:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
262
diff
changeset
|
439 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
440 "sigaction(%d, SIG_DFL) failed", rtscf->signo); |
247
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
441 } |
008276b9e061
nginx-0.0.1-2004-02-01-11:10:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
246
diff
changeset
|
442 |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
443 if (sigaction(rtscf->signo + 1, &sa, NULL) == -1) { |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
444 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
445 "sigaction(%d, SIG_DFL) failed", rtscf->signo + 1); |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
446 } |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
447 |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
448 overflow = 1; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
449 overflow_current = 0; |
380
5ce6561246a5
nginx-0.0.7-2004-07-07-10:15:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
375
diff
changeset
|
450 ngx_event_actions.process_events = ngx_rtsig_process_overflow; |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
451 |
352
694d7ddc3599
nginx-0.0.4-2004-06-11-10:15:08 import
Igor Sysoev <igor@sysoev.ru>
parents:
351
diff
changeset
|
452 return NGX_ERROR; |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
453 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
454 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
455 |
567 | 456 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
457 "sigtimedwait() returned unexpected signal: %d", signo); | |
316
a0beefedaf94
nginx-0.0.3-2004-04-15-00:34:05 import
Igor Sysoev <igor@sysoev.ru>
parents:
306
diff
changeset
|
458 |
567 | 459 return NGX_ERROR; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
460 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
461 |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
462 |
499 | 463 static ngx_int_t |
563 | 464 ngx_rtsig_process_overflow(ngx_cycle_t *cycle, ngx_msec_t timer, |
465 ngx_uint_t flags) | |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
466 { |
354
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
467 int name[2], rtsig_max, rtsig_nr, events, ready; |
eaf1f651cf86
nginx-0.0.7-2004-06-15-11:55:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
352
diff
changeset
|
468 size_t len; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
469 ngx_err_t err; |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
470 ngx_uint_t tested, n, i; |
563 | 471 ngx_event_t *rev, *wev, **queue; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
472 ngx_connection_t *c; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
473 ngx_rtsig_conf_t *rtscf; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
474 |
563 | 475 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
476 "rtsig process overflow"); | |
477 | |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
478 rtscf = ngx_event_get_conf(ngx_cycle->conf_ctx, ngx_rtsig_module); |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
479 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
480 tested = 0; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
481 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
482 for ( ;; ) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
483 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
484 n = 0; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
485 while (n < rtscf->overflow_events) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
486 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
487 if (overflow_current == cycle->connection_n) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
488 break; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
489 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
490 |
543 | 491 c = cycle->files[overflow_current++]; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
492 |
559 | 493 if (c == NULL || c->fd == -1) { |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
494 continue; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
495 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
496 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
497 events = 0; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
498 |
509 | 499 if (c->read->active && c->read->handler) { |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
500 events |= POLLIN; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
501 } |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
502 |
509 | 503 if (c->write->active && c->write->handler) { |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
504 events |= POLLOUT; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
505 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
506 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
507 if (events == 0) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
508 continue; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
509 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
510 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
511 overflow_list[n].fd = c->fd; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
512 overflow_list[n].events = events; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
513 overflow_list[n].revents = 0; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
514 n++; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
515 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
516 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
517 if (n == 0) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
518 break; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
519 } |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
520 |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
521 for ( ;; ) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
522 ready = poll(overflow_list, n, 0); |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
523 |
563 | 524 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
525 "rtsig overflow poll:%d", ready); | |
526 | |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
527 if (ready == -1) { |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
528 err = ngx_errno; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
529 ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT, |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
530 cycle->log, 0, |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
531 "poll() failed while the overflow recover"); |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
532 |
402
f209f3391020
nginx-0.0.9-2004-07-28-20:16:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
391
diff
changeset
|
533 if (err == NGX_EINTR) { |
f209f3391020
nginx-0.0.9-2004-07-28-20:16:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
391
diff
changeset
|
534 continue; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
535 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
536 } |
402
f209f3391020
nginx-0.0.9-2004-07-28-20:16:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
391
diff
changeset
|
537 |
f209f3391020
nginx-0.0.9-2004-07-28-20:16:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
391
diff
changeset
|
538 break; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
539 } |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
540 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
541 if (ready <= 0) { |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
542 continue; |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
543 } |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
544 |
563 | 545 ngx_mutex_lock(ngx_posted_events_mutex); |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
546 |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
547 for (i = 0; i < n; i++) { |
543 | 548 c = cycle->files[overflow_list[i].fd]; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
549 |
559 | 550 if (c == NULL) { |
551 continue; | |
552 } | |
553 | |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
554 rev = c->read; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
555 |
390
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
556 if (rev->active |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
557 && !rev->closed |
509 | 558 && rev->handler |
390
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
559 && (overflow_list[i].revents |
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
560 & (POLLIN|POLLERR|POLLHUP|POLLNVAL))) |
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
561 { |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
562 tested++; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
563 |
563 | 564 if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
565 rev->posted_ready = 1; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
566 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
567 } else { |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
568 rev->ready = 1; |
563 | 569 } |
570 | |
571 if (flags & NGX_POST_EVENTS) { | |
572 queue = (ngx_event_t **) (rev->accept ? | |
573 &ngx_posted_accept_events : &ngx_posted_events); | |
574 | |
575 ngx_locked_post_event(rev, queue); | |
576 | |
577 } else { | |
578 rev->handler(rev); | |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
579 } |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
580 } |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
581 |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
582 wev = c->write; |
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
583 |
390
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
584 if (wev->active |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
585 && !wev->closed |
509 | 586 && wev->handler |
390
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
587 && (overflow_list[i].revents |
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
588 & (POLLOUT|POLLERR|POLLHUP|POLLNVAL))) |
1471c6fb108a
nginx-0.0.7-2004-07-14-00:24:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
589 { |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
590 tested++; |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
591 |
563 | 592 if (flags & NGX_POST_THREAD_EVENTS) { |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
593 wev->posted_ready = 1; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
594 |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
595 } else { |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
596 wev->ready = 1; |
563 | 597 } |
598 | |
599 if (flags & NGX_POST_EVENTS) { | |
600 ngx_locked_post_event(wev, &ngx_posted_events); | |
601 | |
602 } else { | |
603 wev->handler(wev); | |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
604 } |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
605 } |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
606 } |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
607 |
402
f209f3391020
nginx-0.0.9-2004-07-28-20:16:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
391
diff
changeset
|
608 ngx_mutex_unlock(ngx_posted_events_mutex); |
381
02a511569afb
nginx-0.0.7-2004-07-07-19:01:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
380
diff
changeset
|
609 |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
610 if (tested >= rtscf->overflow_test) { |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
611 |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
612 if (ngx_linux_rtsig_max) { |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
613 |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
614 /* |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
615 * Check the current rt queue length to prevent |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
616 * the new overflow. |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
617 * |
563 | 618 * learn the "/proc/sys/kernel/rtsig-max" value because |
619 * it can be changed since the last checking | |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
620 */ |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
621 |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
622 name[0] = CTL_KERN; |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
623 name[1] = KERN_RTSIGMAX; |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
624 len = sizeof(rtsig_max); |
493 | 625 |
626 if (sysctl(name, 2, &rtsig_max, &len, NULL, 0) == -1) { | |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
627 ngx_log_error(NGX_LOG_ALERT, cycle->log, errno, |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
628 "sysctl(KERN_RTSIGMAX) failed"); |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
629 return NGX_ERROR; |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
630 } |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
631 |
493 | 632 /* name[0] = CTL_KERN; */ |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
633 name[1] = KERN_RTSIGNR; |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
634 len = sizeof(rtsig_nr); |
493 | 635 |
636 if (sysctl(name, 2, &rtsig_nr, &len, NULL, 0) == -1) { | |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
637 ngx_log_error(NGX_LOG_ALERT, cycle->log, errno, |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
638 "sysctl(KERN_RTSIGNR) failed"); |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
639 return NGX_ERROR; |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
640 } |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
641 |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
642 /* |
563 | 643 * drain the rt signal queue if the /"proc/sys/kernel/rtsig-nr" |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
644 * is bigger than |
563 | 645 * "/proc/sys/kernel/rtsig-max" / "rtsig_overflow_threshold" |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
646 */ |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
647 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
648 if (rtsig_max / (int) rtscf->overflow_threshold < rtsig_nr) { |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
649 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
650 "rtsig queue state: %d/%d", |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
651 rtsig_nr, rtsig_max); |
563 | 652 while (ngx_rtsig_process_events(cycle, 0, flags) == NGX_OK) |
653 { | |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
654 /* void */ |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
655 } |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
656 } |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
657 |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
658 } else { |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
659 |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
660 /* |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
661 * Linux has not KERN_RTSIGMAX since 2.6.6-mm2 |
402
f209f3391020
nginx-0.0.9-2004-07-28-20:16:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
391
diff
changeset
|
662 * so drain the rt signal queue unconditionally |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
663 */ |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
664 |
563 | 665 while (ngx_rtsig_process_events(cycle, 0, flags) == NGX_OK) { |
666 /* void */ | |
667 } | |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
668 } |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
669 |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
670 tested = 0; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
671 } |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
672 } |
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
673 |
563 | 674 if (flags & NGX_UPDATE_TIME) { |
3475
ab353d7dc182
*) introduce ngx_time_sigsafe_update() to update the error log time only
Igor Sysoev <igor@sysoev.ru>
parents:
3474
diff
changeset
|
675 ngx_time_update(); |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
676 } |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
677 |
527 | 678 ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
679 "rt signal queue overflow recovered"); |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
680 |
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
681 overflow = 0; |
380
5ce6561246a5
nginx-0.0.7-2004-07-07-10:15:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
375
diff
changeset
|
682 ngx_event_actions.process_events = ngx_rtsig_process_events; |
348
68ff8000a974
nginx-0.0.3-2004-06-09-11:45:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
346
diff
changeset
|
683 |
261
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
684 return NGX_OK; |
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
685 } |
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
686 |
bdd631bf1a1c
nginx-0.0.2-2004-02-18-00:11:27 import
Igor Sysoev <igor@sysoev.ru>
parents:
260
diff
changeset
|
687 |
499 | 688 static void * |
689 ngx_rtsig_create_conf(ngx_cycle_t *cycle) | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
690 { |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
691 ngx_rtsig_conf_t *rtscf; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
692 |
501 | 693 rtscf = ngx_palloc(cycle->pool, sizeof(ngx_rtsig_conf_t)); |
694 if (rtscf == NULL) { | |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
1939
diff
changeset
|
695 return NULL; |
501 | 696 } |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
697 |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
698 rtscf->signo = NGX_CONF_UNSET; |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
699 rtscf->overflow_events = NGX_CONF_UNSET; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
700 rtscf->overflow_test = NGX_CONF_UNSET; |
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
701 rtscf->overflow_threshold = NGX_CONF_UNSET; |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
702 |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
703 return rtscf; |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
704 } |
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
705 |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
706 |
499 | 707 static char * |
708 ngx_rtsig_init_conf(ngx_cycle_t *cycle, void *conf) | |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
709 { |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
710 ngx_rtsig_conf_t *rtscf = conf; |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
711 |
260
5dacbb4daaf6
nginx-0.0.2-2004-02-17-20:53:12 import
Igor Sysoev <igor@sysoev.ru>
parents:
247
diff
changeset
|
712 /* LinuxThreads use the first 3 RT signals */ |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
713 ngx_conf_init_uint_value(rtscf->signo, SIGRTMIN + 10); |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
714 |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
715 ngx_conf_init_uint_value(rtscf->overflow_events, 16); |
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
716 ngx_conf_init_uint_value(rtscf->overflow_test, 32); |
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
717 ngx_conf_init_uint_value(rtscf->overflow_threshold, 10); |
351
af4c6b45a687
nginx-0.0.4-2004-06-10-22:36:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
350
diff
changeset
|
718 |
246
6753e8cdaa2c
nginx-0.0.1-2004-01-30-20:39:00 import
Igor Sysoev <igor@sysoev.ru>
parents:
60
diff
changeset
|
719 return NGX_CONF_OK; |
60
50186b49f2ad
nginx-0.0.1-2003-02-11-10:14:40 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
720 } |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
721 |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
722 |
499 | 723 static char * |
1354
f69d1aab6a0f
make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents:
577
diff
changeset
|
724 ngx_check_ngx_overflow_threshold_bounds(ngx_conf_t *cf, void *post, void *data) |
391
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
725 { |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
726 if (ngx_linux_rtsig_max) { |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
727 return ngx_conf_check_num_bounds(cf, post, data); |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
728 } |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
729 |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
730 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
731 "\"rtsig_overflow_threshold\" is not supported " |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
732 "since Linux 2.6.6-mm2, ignored"); |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
733 |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
734 return NGX_CONF_OK; |
b670db10cbbd
nginx-0.0.7-2004-07-14-20:01:42 import
Igor Sysoev <igor@sysoev.ru>
parents:
390
diff
changeset
|
735 } |