Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_upstream_zone_module.c @ 8848:dde5cb0205ef quic
QUIC: fixed the "quic_stream_buffer_size" directive.
The default value is now correctly set and the configuration
is properly merged.
author | Vladimir Homutov <vl@nginx.com> |
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date | Tue, 08 Feb 2022 23:00:12 +0300 |
parents | 3b1b81e248bc |
children |
rev | line source |
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6103 | 1 |
2 /* | |
3 * Copyright (C) Ruslan Ermilov | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
13 static char *ngx_http_upstream_zone(ngx_conf_t *cf, ngx_command_t *cmd, | |
14 void *conf); | |
15 static ngx_int_t ngx_http_upstream_init_zone(ngx_shm_zone_t *shm_zone, | |
16 void *data); | |
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17 static ngx_http_upstream_rr_peers_t *ngx_http_upstream_zone_copy_peers( |
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18 ngx_slab_pool_t *shpool, ngx_http_upstream_srv_conf_t *uscf); |
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19 static ngx_http_upstream_rr_peer_t *ngx_http_upstream_zone_copy_peer( |
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20 ngx_http_upstream_rr_peers_t *peers, ngx_http_upstream_rr_peer_t *src); |
6103 | 21 |
22 | |
23 static ngx_command_t ngx_http_upstream_zone_commands[] = { | |
24 | |
25 { ngx_string("zone"), | |
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26 NGX_HTTP_UPS_CONF|NGX_CONF_TAKE12, |
6103 | 27 ngx_http_upstream_zone, |
28 0, | |
29 0, | |
30 NULL }, | |
31 | |
32 ngx_null_command | |
33 }; | |
34 | |
35 | |
36 static ngx_http_module_t ngx_http_upstream_zone_module_ctx = { | |
37 NULL, /* preconfiguration */ | |
38 NULL, /* postconfiguration */ | |
39 | |
40 NULL, /* create main configuration */ | |
41 NULL, /* init main configuration */ | |
42 | |
43 NULL, /* create server configuration */ | |
44 NULL, /* merge server configuration */ | |
45 | |
46 NULL, /* create location configuration */ | |
47 NULL /* merge location configuration */ | |
48 }; | |
49 | |
50 | |
51 ngx_module_t ngx_http_upstream_zone_module = { | |
52 NGX_MODULE_V1, | |
53 &ngx_http_upstream_zone_module_ctx, /* module context */ | |
54 ngx_http_upstream_zone_commands, /* module directives */ | |
55 NGX_HTTP_MODULE, /* module type */ | |
56 NULL, /* init master */ | |
57 NULL, /* init module */ | |
58 NULL, /* init process */ | |
59 NULL, /* init thread */ | |
60 NULL, /* exit thread */ | |
61 NULL, /* exit process */ | |
62 NULL, /* exit master */ | |
63 NGX_MODULE_V1_PADDING | |
64 }; | |
65 | |
66 | |
67 static char * | |
68 ngx_http_upstream_zone(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
69 { | |
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70 ssize_t size; |
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71 ngx_str_t *value; |
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72 ngx_http_upstream_srv_conf_t *uscf; |
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73 ngx_http_upstream_main_conf_t *umcf; |
6103 | 74 |
75 uscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_upstream_module); | |
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76 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module); |
6103 | 77 |
78 value = cf->args->elts; | |
79 | |
80 if (!value[1].len) { | |
81 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
82 "invalid zone name \"%V\"", &value[1]); | |
83 return NGX_CONF_ERROR; | |
84 } | |
85 | |
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86 if (cf->args->nelts == 3) { |
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87 size = ngx_parse_size(&value[2]); |
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88 |
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89 if (size == NGX_ERROR) { |
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90 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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91 "invalid zone size \"%V\"", &value[2]); |
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92 return NGX_CONF_ERROR; |
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93 } |
6103 | 94 |
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95 if (size < (ssize_t) (8 * ngx_pagesize)) { |
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96 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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97 "zone \"%V\" is too small", &value[1]); |
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98 return NGX_CONF_ERROR; |
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99 } |
6103 | 100 |
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101 } else { |
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102 size = 0; |
6103 | 103 } |
104 | |
105 uscf->shm_zone = ngx_shared_memory_add(cf, &value[1], size, | |
106 &ngx_http_upstream_module); | |
107 if (uscf->shm_zone == NULL) { | |
108 return NGX_CONF_ERROR; | |
109 } | |
110 | |
111 uscf->shm_zone->init = ngx_http_upstream_init_zone; | |
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112 uscf->shm_zone->data = umcf; |
6103 | 113 |
114 uscf->shm_zone->noreuse = 1; | |
115 | |
116 return NGX_CONF_OK; | |
117 } | |
118 | |
119 | |
120 static ngx_int_t | |
121 ngx_http_upstream_init_zone(ngx_shm_zone_t *shm_zone, void *data) | |
122 { | |
123 size_t len; | |
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124 ngx_uint_t i; |
6103 | 125 ngx_slab_pool_t *shpool; |
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126 ngx_http_upstream_rr_peers_t *peers, **peersp; |
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127 ngx_http_upstream_srv_conf_t *uscf, **uscfp; |
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128 ngx_http_upstream_main_conf_t *umcf; |
6103 | 129 |
130 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr; | |
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131 umcf = shm_zone->data; |
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132 uscfp = umcf->upstreams.elts; |
6103 | 133 |
134 if (shm_zone->shm.exists) { | |
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135 peers = shpool->data; |
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136 |
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137 for (i = 0; i < umcf->upstreams.nelts; i++) { |
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138 uscf = uscfp[i]; |
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139 |
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140 if (uscf->shm_zone != shm_zone) { |
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141 continue; |
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142 } |
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143 |
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144 uscf->peer.data = peers; |
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145 peers = peers->zone_next; |
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146 } |
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147 |
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148 return NGX_OK; |
6103 | 149 } |
150 | |
151 len = sizeof(" in upstream zone \"\"") + shm_zone->shm.name.len; | |
152 | |
153 shpool->log_ctx = ngx_slab_alloc(shpool, len); | |
154 if (shpool->log_ctx == NULL) { | |
155 return NGX_ERROR; | |
156 } | |
157 | |
158 ngx_sprintf(shpool->log_ctx, " in upstream zone \"%V\"%Z", | |
159 &shm_zone->shm.name); | |
160 | |
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161 |
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162 /* copy peers to shared memory */ |
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163 |
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164 peersp = (ngx_http_upstream_rr_peers_t **) (void *) &shpool->data; |
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165 |
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166 for (i = 0; i < umcf->upstreams.nelts; i++) { |
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167 uscf = uscfp[i]; |
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168 |
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169 if (uscf->shm_zone != shm_zone) { |
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170 continue; |
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171 } |
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172 |
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173 peers = ngx_http_upstream_zone_copy_peers(shpool, uscf); |
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174 if (peers == NULL) { |
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175 return NGX_ERROR; |
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176 } |
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177 |
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178 *peersp = peers; |
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179 peersp = &peers->zone_next; |
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180 } |
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181 |
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182 return NGX_OK; |
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183 } |
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184 |
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185 |
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186 static ngx_http_upstream_rr_peers_t * |
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187 ngx_http_upstream_zone_copy_peers(ngx_slab_pool_t *shpool, |
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188 ngx_http_upstream_srv_conf_t *uscf) |
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189 { |
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190 ngx_str_t *name; |
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191 ngx_http_upstream_rr_peer_t *peer, **peerp; |
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192 ngx_http_upstream_rr_peers_t *peers, *backup; |
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193 |
6103 | 194 peers = ngx_slab_alloc(shpool, sizeof(ngx_http_upstream_rr_peers_t)); |
195 if (peers == NULL) { | |
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196 return NULL; |
6103 | 197 } |
198 | |
199 ngx_memcpy(peers, uscf->peer.data, sizeof(ngx_http_upstream_rr_peers_t)); | |
200 | |
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201 name = ngx_slab_alloc(shpool, sizeof(ngx_str_t)); |
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202 if (name == NULL) { |
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203 return NULL; |
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204 } |
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205 |
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206 name->data = ngx_slab_alloc(shpool, peers->name->len); |
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207 if (name->data == NULL) { |
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208 return NULL; |
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209 } |
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210 |
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211 ngx_memcpy(name->data, peers->name->data, peers->name->len); |
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212 name->len = peers->name->len; |
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213 |
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214 peers->name = name; |
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215 |
6103 | 216 peers->shpool = shpool; |
217 | |
218 for (peerp = &peers->peer; *peerp; peerp = &peer->next) { | |
219 /* pool is unlocked */ | |
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220 peer = ngx_http_upstream_zone_copy_peer(peers, *peerp); |
6103 | 221 if (peer == NULL) { |
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222 return NULL; |
6103 | 223 } |
224 | |
225 *peerp = peer; | |
226 } | |
227 | |
228 if (peers->next == NULL) { | |
229 goto done; | |
230 } | |
231 | |
232 backup = ngx_slab_alloc(shpool, sizeof(ngx_http_upstream_rr_peers_t)); | |
233 if (backup == NULL) { | |
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234 return NULL; |
6103 | 235 } |
236 | |
237 ngx_memcpy(backup, peers->next, sizeof(ngx_http_upstream_rr_peers_t)); | |
238 | |
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239 backup->name = name; |
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240 |
6103 | 241 backup->shpool = shpool; |
242 | |
243 for (peerp = &backup->peer; *peerp; peerp = &peer->next) { | |
244 /* pool is unlocked */ | |
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245 peer = ngx_http_upstream_zone_copy_peer(backup, *peerp); |
6103 | 246 if (peer == NULL) { |
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247 return NULL; |
6103 | 248 } |
249 | |
250 *peerp = peer; | |
251 } | |
252 | |
253 peers->next = backup; | |
254 | |
255 done: | |
256 | |
257 uscf->peer.data = peers; | |
258 | |
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259 return peers; |
6103 | 260 } |
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261 |
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262 |
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263 static ngx_http_upstream_rr_peer_t * |
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264 ngx_http_upstream_zone_copy_peer(ngx_http_upstream_rr_peers_t *peers, |
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265 ngx_http_upstream_rr_peer_t *src) |
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266 { |
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267 ngx_slab_pool_t *pool; |
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268 ngx_http_upstream_rr_peer_t *dst; |
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269 |
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270 pool = peers->shpool; |
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271 |
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272 dst = ngx_slab_calloc_locked(pool, sizeof(ngx_http_upstream_rr_peer_t)); |
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273 if (dst == NULL) { |
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274 return NULL; |
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275 } |
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276 |
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277 if (src) { |
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278 ngx_memcpy(dst, src, sizeof(ngx_http_upstream_rr_peer_t)); |
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279 dst->sockaddr = NULL; |
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280 dst->name.data = NULL; |
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281 dst->server.data = NULL; |
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282 } |
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283 |
7110
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284 dst->sockaddr = ngx_slab_calloc_locked(pool, sizeof(ngx_sockaddr_t)); |
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285 if (dst->sockaddr == NULL) { |
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286 goto failed; |
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287 } |
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288 |
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289 dst->name.data = ngx_slab_calloc_locked(pool, NGX_SOCKADDR_STRLEN); |
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290 if (dst->name.data == NULL) { |
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291 goto failed; |
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|
292 } |
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293 |
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294 if (src) { |
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295 ngx_memcpy(dst->sockaddr, src->sockaddr, src->socklen); |
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296 ngx_memcpy(dst->name.data, src->name.data, src->name.len); |
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297 |
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298 dst->server.data = ngx_slab_alloc_locked(pool, src->server.len); |
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299 if (dst->server.data == NULL) { |
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300 goto failed; |
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301 } |
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302 |
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303 ngx_memcpy(dst->server.data, src->server.data, src->server.len); |
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304 } |
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305 |
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306 return dst; |
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307 |
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308 failed: |
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309 |
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310 if (dst->server.data) { |
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311 ngx_slab_free_locked(pool, dst->server.data); |
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312 } |
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313 |
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314 if (dst->name.data) { |
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315 ngx_slab_free_locked(pool, dst->name.data); |
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316 } |
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317 |
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318 if (dst->sockaddr) { |
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|
319 ngx_slab_free_locked(pool, dst->sockaddr); |
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320 } |
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|
321 |
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|
322 ngx_slab_free_locked(pool, dst); |
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|
323 |
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|
324 return NULL; |
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|
325 } |