Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_wsasend_chain.c @ 4650:b38fea6f9a15
Fixed returned value handling from the cookie rewrite handler.
If the "proxy_cookie_domain" or "proxy_cookie_path" directive is used and there
are no matches in Set-Cookie header then ngx_http_proxy_rewrite_cookie() returns
NGX_DECLINED to indicate that the header was not rewritten. Returning this value
further from the upstream headers copy handler resulted in 500 error response.
See here for report:
http://mailman.nginx.org/pipermail/nginx/2012-May/033858.html
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Wed, 30 May 2012 12:30:03 +0000 |
parents | d620f497c50f |
children | f9c83484d9ce |
rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
103
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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 |
461 | 13 #define NGX_WSABUFS 8 |
14 | |
15 | |
501 | 16 ngx_chain_t * |
17 ngx_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) | |
103
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18 { |
184
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19 int rc; |
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20 u_char *prev; |
473 | 21 u_long size, sent, send, prev_send; |
461 | 22 ngx_uint_t complete; |
184
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23 ngx_err_t err; |
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24 ngx_event_t *wev; |
461 | 25 ngx_array_t vec; |
501 | 26 ngx_chain_t *cl; |
461 | 27 LPWSABUF wsabuf; |
28 WSABUF wsabufs[NGX_WSABUFS]; | |
184
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29 |
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30 wev = c->write; |
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31 |
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32 if (!wev->ready) { |
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33 return in; |
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34 } |
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35 |
473 | 36 /* the maximum limit size is the maximum u_long value - the page size */ |
37 | |
38 if (limit == 0 || limit > NGX_MAX_UINT32_VALUE - ngx_pagesize) { | |
39 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize; | |
40 } | |
41 | |
461 | 42 send = 0; |
43 complete = 0; | |
44 | |
184
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45 /* |
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46 * WSABUFs must be 4-byte aligned otherwise |
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47 * WSASend() will return undocumented WSAEINVAL error. |
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48 */ |
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49 |
461 | 50 vec.elts = wsabufs; |
51 vec.size = sizeof(WSABUF); | |
577 | 52 vec.nalloc = NGX_WSABUFS; |
461 | 53 vec.pool = c->pool; |
184
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54 |
461 | 55 for ( ;; ) { |
56 prev = NULL; | |
57 wsabuf = NULL; | |
473 | 58 prev_send = send; |
184
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59 |
461 | 60 vec.nelts = 0; |
184
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61 |
461 | 62 /* create the WSABUF and coalesce the neighbouring bufs */ |
184
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63 |
461 | 64 for (cl = in; |
65 cl && vec.nelts < ngx_max_wsabufs && send < limit; | |
66 cl = cl->next) | |
67 { | |
68 if (ngx_buf_special(cl->buf)) { | |
69 continue; | |
70 } | |
184
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71 |
461 | 72 size = cl->buf->last - cl->buf->pos; |
184
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73 |
461 | 74 if (send + size > limit) { |
75 size = (u_long) (limit - send); | |
76 } | |
184
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77 |
461 | 78 if (prev == cl->buf->pos) { |
79 wsabuf->len += cl->buf->last - cl->buf->pos; | |
184
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80 |
461 | 81 } else { |
501 | 82 wsabuf = ngx_array_push(&vec); |
83 if (wsabuf == NULL) { | |
461 | 84 return NGX_CHAIN_ERROR; |
85 } | |
184
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86 |
461 | 87 wsabuf->buf = (char *) cl->buf->pos; |
88 wsabuf->len = cl->buf->last - cl->buf->pos; | |
184
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89 } |
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90 |
461 | 91 prev = cl->buf->last; |
92 send += size; | |
184
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93 } |
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94 |
461 | 95 sent = 0; |
96 | |
97 rc = WSASend(c->fd, vec.elts, vec.nelts, &sent, 0, NULL, NULL); | |
98 | |
99 if (rc == -1) { | |
100 err = ngx_errno; | |
101 | |
102 if (err == WSAEWOULDBLOCK) { | |
103 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, | |
104 "WSASend() not ready"); | |
105 | |
106 } else { | |
107 wev->error = 1; | |
108 ngx_connection_error(c, err, "WSASend() failed"); | |
109 return NGX_CHAIN_ERROR; | |
110 } | |
111 } | |
112 | |
113 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, | |
114 "WSASend: fd:%d, s:%ul", c->fd, sent); | |
115 | |
473 | 116 if (send - prev_send == sent) { |
461 | 117 complete = 1; |
184
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118 } |
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119 |
461 | 120 c->sent += sent; |
121 | |
2614 | 122 for (cl = in; cl; cl = cl->next) { |
123 | |
461 | 124 if (ngx_buf_special(cl->buf)) { |
125 continue; | |
126 } | |
127 | |
128 if (sent == 0) { | |
129 break; | |
130 } | |
131 | |
132 size = cl->buf->last - cl->buf->pos; | |
133 | |
134 if (sent >= size) { | |
135 sent -= size; | |
136 cl->buf->pos = cl->buf->last; | |
184
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137 |
461 | 138 continue; |
139 } | |
140 | |
141 cl->buf->pos += sent; | |
142 | |
143 break; | |
144 } | |
145 | |
146 if (!complete) { | |
147 wev->ready = 0; | |
148 return cl; | |
149 } | |
150 | |
151 if (send >= limit || cl == NULL) { | |
152 return cl; | |
153 } | |
154 | |
155 in = cl; | |
184
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156 } |
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157 } |
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158 |
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159 |
501 | 160 ngx_chain_t * |
161 ngx_overlapped_wsasend_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit) | |
184
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162 { |
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163 int rc; |
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164 u_char *prev; |
473 | 165 u_long size, send, sent; |
184
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166 ngx_err_t err; |
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167 ngx_event_t *wev; |
461 | 168 ngx_array_t vec; |
184
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169 ngx_chain_t *cl; |
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170 LPWSAOVERLAPPED ovlp; |
501 | 171 LPWSABUF wsabuf; |
461 | 172 WSABUF wsabufs[NGX_WSABUFS]; |
184
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173 |
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174 wev = c->write; |
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175 |
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176 if (!wev->ready) { |
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177 return in; |
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178 } |
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179 |
461 | 180 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
181 "wev->complete: %d", wev->complete); | |
182 | |
184
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183 if (!wev->complete) { |
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184 |
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185 /* post the overlapped WSASend() */ |
473 | 186 |
187 /* the maximum limit size is the maximum u_long value - the page size */ | |
188 | |
189 if (limit == 0 || limit > NGX_MAX_UINT32_VALUE - ngx_pagesize) { | |
190 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize; | |
191 } | |
577 | 192 |
184
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193 /* |
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194 * WSABUFs must be 4-byte aligned otherwise |
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195 * WSASend() will return undocumented WSAEINVAL error. |
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196 */ |
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197 |
461 | 198 vec.elts = wsabufs; |
199 vec.nelts = 0; | |
200 vec.size = sizeof(WSABUF); | |
577 | 201 vec.nalloc = NGX_WSABUFS; |
461 | 202 vec.pool = c->pool; |
184
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203 |
461 | 204 send = 0; |
184
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205 prev = NULL; |
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206 wsabuf = NULL; |
577 | 207 |
184
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208 /* create the WSABUF and coalesce the neighbouring bufs */ |
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209 |
461 | 210 for (cl = in; |
211 cl && vec.nelts < ngx_max_wsabufs && send < limit; | |
212 cl = cl->next) | |
213 { | |
214 if (ngx_buf_special(cl->buf)) { | |
215 continue; | |
216 } | |
217 | |
218 size = cl->buf->last - cl->buf->pos; | |
219 | |
220 if (send + size > limit) { | |
221 size = (u_long) (limit - send); | |
222 } | |
184
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223 |
343
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224 if (prev == cl->buf->pos) { |
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225 wsabuf->len += cl->buf->last - cl->buf->pos; |
461 | 226 |
184
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227 } else { |
501 | 228 wsabuf = ngx_array_push(&vec); |
229 if (wsabuf == NULL) { | |
461 | 230 return NGX_CHAIN_ERROR; |
231 } | |
232 | |
343
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233 wsabuf->buf = (char *) cl->buf->pos; |
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234 wsabuf->len = cl->buf->last - cl->buf->pos; |
184
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235 } |
461 | 236 |
237 prev = cl->buf->last; | |
238 send += size; | |
184
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239 } |
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240 |
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241 ovlp = (LPWSAOVERLAPPED) &c->write->ovlp; |
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242 ngx_memzero(ovlp, sizeof(WSAOVERLAPPED)); |
577 | 243 |
461 | 244 rc = WSASend(c->fd, vec.elts, vec.nelts, &sent, 0, ovlp, NULL); |
184
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245 |
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246 wev->complete = 0; |
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247 |
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248 if (rc == -1) { |
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249 err = ngx_errno; |
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250 |
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251 if (err == WSA_IO_PENDING) { |
461 | 252 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err, |
253 "WSASend() posted"); | |
184
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254 wev->active = 1; |
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255 return in; |
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256 |
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257 } else { |
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258 wev->error = 1; |
278
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259 ngx_connection_error(c, err, "WSASend() failed"); |
184
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260 return NGX_CHAIN_ERROR; |
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261 } |
577 | 262 |
184
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263 } else if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
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264 |
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265 /* |
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266 * if a socket was bound with I/O completion port then |
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267 * GetQueuedCompletionStatus() would anyway return its status |
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268 * despite that WSASend() was already complete |
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269 */ |
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270 |
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271 wev->active = 1; |
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272 return in; |
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273 } |
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274 |
461 | 275 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
276 "WSASend: fd:%d, s:%ul", c->fd, sent); | |
277 | |
184
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278 } else { |
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279 |
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280 /* the overlapped WSASend() complete */ |
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281 |
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282 wev->complete = 0; |
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283 wev->active = 0; |
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284 |
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285 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
1bf718ce0dde
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parents:
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286 if (wev->ovlp.error) { |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
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parents:
257
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287 ngx_connection_error(c, wev->ovlp.error, "WSASend() failed"); |
184
1bf718ce0dde
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288 return NGX_CHAIN_ERROR; |
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parents:
144
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289 } |
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|
290 |
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291 sent = wev->available; |
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292 |
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144
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293 } else { |
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parents:
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294 if (WSAGetOverlappedResult(c->fd, (LPWSAOVERLAPPED) &wev->ovlp, |
2776 | 295 &sent, 0, NULL) |
296 == 0) | |
297 { | |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
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parents:
257
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298 ngx_connection_error(c, ngx_socket_errno, |
0ba4821f4460
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parents:
257
diff
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|
299 "WSASend() or WSAGetOverlappedResult() failed"); |
577 | 300 |
184
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parents:
144
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301 return NGX_CHAIN_ERROR; |
1bf718ce0dde
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parents:
144
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|
302 } |
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parents:
144
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|
303 } |
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nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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|
304 } |
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parents:
144
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305 |
461 | 306 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
307 "WSASend ovlp: fd:%d, s:%ul", c->fd, sent); | |
184
1bf718ce0dde
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|
308 |
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309 c->sent += sent; |
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310 |
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311 for (cl = in; cl && sent > 0; cl = cl->next) { |
461 | 312 if (ngx_buf_special(cl->buf)) { |
313 continue; | |
314 } | |
315 | |
316 if (sent == 0) { | |
317 break; | |
318 } | |
184
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parents:
144
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|
319 |
343
6bdf858bff8c
nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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parents:
292
diff
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|
320 size = cl->buf->last - cl->buf->pos; |
184
1bf718ce0dde
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parents:
144
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|
321 |
1bf718ce0dde
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144
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|
322 if (sent >= size) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
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|
323 sent -= size; |
461 | 324 cl->buf->pos = cl->buf->last; |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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diff
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|
325 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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|
326 continue; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
327 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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|
328 |
461 | 329 cl->buf->pos += sent; |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
330 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
331 break; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
332 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
333 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
334 if (cl) { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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|
335 wev->ready = 0; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
336 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
337 } else { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
338 wev->ready = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
339 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
340 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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changeset
|
341 return cl; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
342 } |