Mercurial > hg > nginx
comparison src/os/win32/ngx_wsarecv_chain.c @ 186:c1f3a3c7c5db
nginx-0.0.1-2003-11-17-00:49:42 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sun, 16 Nov 2003 21:49:42 +0000 |
parents | |
children | 0ba4821f4460 |
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185:d5f50cefc322 | 186:c1f3a3c7c5db |
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1 | |
2 #include <ngx_config.h> | |
3 #include <ngx_core.h> | |
4 #include <ngx_event.h> | |
5 | |
6 | |
7 ssize_t ngx_wsarecv_chain(ngx_connection_t *c, ngx_chain_t *chain) | |
8 { | |
9 int rc; | |
10 char *prev; | |
11 u_int flags; | |
12 size_t bytes, size; | |
13 WSABUF *wsabuf; | |
14 ngx_err_t err; | |
15 ngx_array_t io; | |
16 ngx_event_t *rev; | |
17 | |
18 prev = NULL; | |
19 wsabuf = NULL; | |
20 flags = 0; | |
21 size = 0; | |
22 bytes = 0; | |
23 | |
24 ngx_init_array(io, c->pool, 10, sizeof(WSABUF), NGX_ERROR); | |
25 | |
26 /* coalesce the neighbouring hunks */ | |
27 | |
28 while (chain) { | |
29 if (prev == chain->hunk->last) { | |
30 wsabuf->len += chain->hunk->end - chain->hunk->last; | |
31 | |
32 } else { | |
33 ngx_test_null(wsabuf, ngx_push_array(&io), NGX_ERROR); | |
34 wsabuf->buf = chain->hunk->last; | |
35 wsabuf->len = chain->hunk->end - chain->hunk->last; | |
36 } | |
37 | |
38 size += chain->hunk->end - chain->hunk->last; | |
39 prev = chain->hunk->end; | |
40 chain = chain->next; | |
41 } | |
42 | |
43 ngx_log_debug(c->log, "WSARecv: %d:%d" _ io.nelts _ wsabuf->len); | |
44 | |
45 rc = WSARecv(c->fd, io.elts, io.nelts, &bytes, &flags, NULL, NULL); | |
46 | |
47 rev = c->read; | |
48 | |
49 if (rc == -1) { | |
50 rev->ready = 0; | |
51 err = ngx_socket_errno; | |
52 | |
53 if (err == WSAEWOULDBLOCK) { | |
54 ngx_log_error(NGX_LOG_INFO, c->log, err, "WSARecv() EAGAIN"); | |
55 return NGX_AGAIN; | |
56 } | |
57 | |
58 rev->error = 1; | |
59 ngx_log_error(NGX_LOG_CRIT, c->log, err, "WSARecv() failed"); | |
60 return NGX_ERROR; | |
61 } | |
62 | |
63 if (bytes < size) { | |
64 rev->ready = 0; | |
65 } | |
66 | |
67 if (bytes == 0) { | |
68 rev->eof = 1; | |
69 } | |
70 | |
71 return bytes; | |
72 } |