Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_wsasend_chain.c @ 4943:1e2d5d3f9f6b
Core: removed GLOB_NOSORT glob option.
This will result in alphabetical sorting of included files if
the "include" directive with wildcards is used.
Note that the behaviour is now different from that on Windows, where
alphabetical sorting is not guaranteed for FindFirsFile()/FindNextFile()
(used to be alphabetical on NTFS, but not on FAT).
Approved by Igor Sysoev, prodded by many.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 29 Nov 2012 23:15:41 +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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nginx-0.0.2-2004-03-04-10:04:55 import
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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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parents:
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279 |
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280 /* the overlapped WSASend() complete */ |
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parents:
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281 |
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282 wev->complete = 0; |
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parents:
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283 wev->active = 0; |
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parents:
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284 |
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285 if (ngx_event_flags & NGX_USE_IOCP_EVENT) { |
1bf718ce0dde
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parents:
144
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286 if (wev->ovlp.error) { |
278
0ba4821f4460
nginx-0.0.2-2004-03-04-10:04:55 import
Igor Sysoev <igor@sysoev.ru>
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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parents:
144
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|
290 |
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nginx-0.0.1-2003-11-14-10:20:34 import
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291 sent = wev->available; |
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292 |
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parents:
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
nginx-0.0.2-2004-03-04-10:04:55 import
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parents:
257
diff
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|
299 "WSASend() or WSAGetOverlappedResult() failed"); |
577 | 300 |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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301 return NGX_CHAIN_ERROR; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
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|
302 } |
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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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|
303 } |
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nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
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|
304 } |
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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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|
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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parents:
144
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|
308 |
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nginx-0.0.1-2003-11-14-10:20:34 import
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309 c->sent += sent; |
1bf718ce0dde
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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
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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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
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
changeset
|
321 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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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:
144
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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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parents:
144
diff
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|
325 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
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|
326 continue; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
327 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
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|
328 |
461 | 329 cl->buf->pos += sent; |
184
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
330 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
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
Igor Sysoev <igor@sysoev.ru>
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
diff
changeset
|
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
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
337 } else { |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
338 wev->ready = 1; |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
339 } |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
340 |
1bf718ce0dde
nginx-0.0.1-2003-11-14-10:20:34 import
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parents:
144
diff
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 } |