annotate src/http/ngx_http_busy_lock.c @ 662:e5fa0a4a7d27 NGINX_1_1_15

nginx 1.1.15 *) Feature: the "disable_symlinks" directive. *) Feature: the "proxy_cookie_domain" and "proxy_cookie_path" directives. *) Bugfix: nginx might log incorrect error "upstream prematurely closed connection" instead of correct "upstream sent too big header" one. Thanks to Feibo Li. *) Bugfix: nginx could not be built with the ngx_http_perl_module if the --with-openssl option was used. *) Bugfix: internal redirects to named locations were not limited. *) Bugfix: calling $r->flush() multiple times might cause errors in the ngx_http_gzip_filter_module. *) Bugfix: temporary files might be not removed if the "proxy_store" directive were used with SSI includes. *) Bugfix: in some cases non-cacheable variables (such as the $args variable) returned old empty cached value. *) Bugfix: a segmentation fault might occur in a worker process if too many SSI subrequests were issued simultaneously; the bug had appeared in 0.7.25.
author Igor Sysoev <http://sysoev.ru>
date Wed, 15 Feb 2012 00:00:00 +0400
parents d0f7a625f27c
children bf8b55a5ac89
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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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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_http.h>
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13
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14 static int ngx_http_busy_lock_look_cacheable(ngx_http_busy_lock_t *bl,
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15 ngx_http_busy_lock_ctx_t *bc,
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16 int lock);
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19 int ngx_http_busy_lock(ngx_http_busy_lock_t *bl, ngx_http_busy_lock_ctx_t *bc)
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20 {
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21 if (bl->busy < bl->max_busy) {
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22 bl->busy++;
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23
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24 if (bc->time) {
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25 bc->time = 0;
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26 bl->waiting--;
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27 }
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28
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29 return NGX_OK;
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30 }
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31
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32 if (bc->time) {
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33 if (bc->time < bl->timeout) {
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34 ngx_add_timer(bc->event, 1000);
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35 return NGX_AGAIN;
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36 }
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37
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38 bl->waiting--;
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39 return NGX_DONE;
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40
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41 }
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42
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43 if (bl->timeout == 0) {
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44 return NGX_DONE;
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45 }
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46
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47 if (bl->waiting < bl->max_waiting) {
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48 bl->waiting++;
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49
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50 #if 0
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51 ngx_add_timer(bc->event, 1000);
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52 bc->event->event_handler = bc->event_handler;
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53 #endif
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54
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55 /* TODO: ngx_handle_level_read_event() */
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56
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57 return NGX_AGAIN;
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58 }
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59
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60 return NGX_ERROR;
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61 }
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64 int ngx_http_busy_lock_cacheable(ngx_http_busy_lock_t *bl,
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65 ngx_http_busy_lock_ctx_t *bc, int lock)
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66 {
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67 int rc;
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68
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69 rc = ngx_http_busy_lock_look_cacheable(bl, bc, lock);
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70
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71 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, bc->event->log, 0,
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72 "http busylock: %d w:%d mw::%d",
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73 rc, bl->waiting, bl->max_waiting);
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74
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75 if (rc == NGX_OK) { /* no the same request, there's free slot */
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76 return NGX_OK;
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77 }
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78
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79 if (rc == NGX_ERROR && !lock) { /* no the same request, no free slot */
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80 return NGX_OK;
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81 }
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82
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83 /* rc == NGX_AGAIN: the same request */
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84
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85 if (bc->time) {
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86 if (bc->time < bl->timeout) {
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87 ngx_add_timer(bc->event, 1000);
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88 return NGX_AGAIN;
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89 }
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90
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91 bl->waiting--;
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92 return NGX_DONE;
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93
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94 }
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95
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96 if (bl->timeout == 0) {
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97 return NGX_DONE;
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98 }
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99
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100 if (bl->waiting < bl->max_waiting) {
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101 #if 0
0
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102 bl->waiting++;
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103 ngx_add_timer(bc->event, 1000);
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104 bc->event->event_handler = bc->event_handler;
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105 #endif
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106
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107 /* TODO: ngx_handle_level_read_event() */
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108
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109 return NGX_AGAIN;
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110 }
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111
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112 return NGX_ERROR;
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113 }
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114
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115
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116 void ngx_http_busy_unlock(ngx_http_busy_lock_t *bl,
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117 ngx_http_busy_lock_ctx_t *bc)
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118 {
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119 if (bl == NULL) {
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120 return;
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121 }
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122
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123 if (bl->md5) {
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124 bl->md5_mask[bc->slot / 8] &= ~(1 << (bc->slot & 7));
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125 bl->cacheable--;
0
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126 }
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127
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128 bl->busy--;
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129 }
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130
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131
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132 static int ngx_http_busy_lock_look_cacheable(ngx_http_busy_lock_t *bl,
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133 ngx_http_busy_lock_ctx_t *bc,
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134 int lock)
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135 {
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136 int i, b, cacheable, free;
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137 u_int mask;
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138
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139 b = 0;
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140 cacheable = 0;
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141 free = -1;
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142
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143 #if (NGX_SUPPRESS_WARN)
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144 mask = 0;
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145 #endif
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146
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147 for (i = 0; i < bl->max_busy; i++) {
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148
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149 if ((b & 7) == 0) {
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150 mask = bl->md5_mask[i / 8];
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151 }
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152
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153 if (mask & 1) {
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154 if (ngx_memcmp(&bl->md5[i * 16], bc->md5, 16) == 0) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
155 return NGX_AGAIN;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
156 }
340
10cc350ed8a1 nginx 0.6.14
Igor Sysoev <http://sysoev.ru>
parents: 58
diff changeset
157 cacheable++;
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
158
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
159 } else if (free == -1) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
160 free = i;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
161 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
162
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
163 #if 1
340
10cc350ed8a1 nginx 0.6.14
Igor Sysoev <http://sysoev.ru>
parents: 58
diff changeset
164 if (cacheable == bl->cacheable) {
10cc350ed8a1 nginx 0.6.14
Igor Sysoev <http://sysoev.ru>
parents: 58
diff changeset
165 if (free == -1 && cacheable < bl->max_busy) {
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
166 free = i + 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
167 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
168
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
169 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
170 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
171 #endif
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
172
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
173 mask >>= 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
174 b++;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
175 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
176
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
177 if (free == -1) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
178 return NGX_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
179 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
180
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
181 if (lock) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
182 if (bl->busy == bl->max_busy) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
183 return NGX_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
184 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
185
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
186 ngx_memcpy(&bl->md5[free * 16], bc->md5, 16);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
187 bl->md5_mask[free / 8] |= 1 << (free & 7);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
188 bc->slot = free;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
189
340
10cc350ed8a1 nginx 0.6.14
Igor Sysoev <http://sysoev.ru>
parents: 58
diff changeset
190 bl->cacheable++;
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
191 bl->busy++;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
192 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
193
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
194 return NGX_OK;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
195 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
196
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
197
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
198 char *ngx_http_set_busy_lock_slot(ngx_conf_t *cf, ngx_command_t *cmd,
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
199 void *conf)
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
200 {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
201 char *p = conf;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
202
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
203 ngx_uint_t i, dup, invalid;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
204 ngx_str_t *value, line;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
205 ngx_http_busy_lock_t *bl, **blp;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
206
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
207 blp = (ngx_http_busy_lock_t **) (p + cmd->offset);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
208 if (*blp) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
209 return "is duplicate";
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
210 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
211
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
212 /* ngx_calloc_shared() */
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents: 0
diff changeset
213 bl = ngx_pcalloc(cf->pool, sizeof(ngx_http_busy_lock_t));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents: 0
diff changeset
214 if (bl == NULL) {
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
215 return NGX_CONF_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
216 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
217 *blp = bl;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
218
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
219 /* ngx_calloc_shared() */
50
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents: 0
diff changeset
220 bl->mutex = ngx_pcalloc(cf->pool, sizeof(ngx_event_mutex_t));
72eb30262aac nginx 0.1.25
Igor Sysoev <http://sysoev.ru>
parents: 0
diff changeset
221 if (bl->mutex == NULL) {
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
222 return NGX_CONF_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
223 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
224
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
225 dup = 0;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
226 invalid = 0;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
227 value = cf->args->elts;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
228
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
229 for (i = 1; i < cf->args->nelts; i++) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
230
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
231 if (value[i].data[1] != '=') {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
232 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
233 "invalid value \"%s\"", value[i].data);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
234 return NGX_CONF_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
235 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
236
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
237 switch (value[i].data[0]) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
238
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
239 case 'b':
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
240 if (bl->max_busy) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
241 dup = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
242 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
243 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
244
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
245 bl->max_busy = ngx_atoi(value[i].data + 2, value[i].len - 2);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
246 if (bl->max_busy == NGX_ERROR) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
247 invalid = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
248 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
249 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
250
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
251 continue;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
252
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
253 case 'w':
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
254 if (bl->max_waiting) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
255 dup = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
256 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
257 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
258
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
259 bl->max_waiting = ngx_atoi(value[i].data + 2, value[i].len - 2);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
260 if (bl->max_waiting == NGX_ERROR) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
261 invalid = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
262 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
263 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
264
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
265 continue;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
266
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
267 case 't':
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
268 if (bl->timeout) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
269 dup = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
270 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
271 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
272
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
273 line.len = value[i].len - 2;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
274 line.data = value[i].data + 2;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
275
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
276 bl->timeout = ngx_parse_time(&line, 1);
662
e5fa0a4a7d27 nginx 1.1.15
Igor Sysoev <http://sysoev.ru>
parents: 660
diff changeset
277 if (bl->timeout == (time_t) NGX_ERROR) {
0
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
278 invalid = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
279 break;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
280 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
281
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
282 continue;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
283
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
284 default:
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
285 invalid = 1;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
286 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
287
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
288 if (dup) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
289 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
290 "duplicate value \"%s\"", value[i].data);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
291 return NGX_CONF_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
292 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
293
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
294 if (invalid) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
295 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
296 "invalid value \"%s\"", value[i].data);
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
297 return NGX_CONF_ERROR;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
298 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
299 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
300
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
301 if (bl->timeout == 0 && bl->max_waiting) {
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
302 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
303 "busy lock waiting is useless with zero timeout, ignoring");
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
304 }
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
305
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
306 return NGX_CONF_OK;
f0b350454894 nginx 0.1.0
Igor Sysoev <http://sysoev.ru>
parents:
diff changeset
307 }