Mercurial > hg > nginx
comparison src/os/win32/ngx_sendfile.c @ 0:4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
The first code that uses "ngx_" prefix, the previous one used "gx_" prefix.
At that point the code is not yet usable. The first draft ideas are dated
back to 23.10.2001.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 06 Aug 2002 16:39:45 +0000 |
parents | |
children | 34a521b1a148 |
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-1:000000000000 | 0:4eff17414a43 |
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1 | |
2 #include <ngx_config.h> | |
3 #include <ngx_types.h> | |
4 #include <ngx_errno.h> | |
5 #include <ngx_log.h> | |
6 #include <ngx_sendv.h> | |
7 #include <ngx_sendfile.h> | |
8 | |
9 /* | |
10 TODO: | |
11 various flags | |
12 TransmitPackets | |
13 */ | |
14 | |
15 /* | |
16 returns | |
17 0 done | |
18 -1 error | |
19 */ | |
20 | |
21 #if (HAVE_WIN32_TRANSMITFILE) | |
22 | |
23 int ngx_sendfile(ngx_socket_t s, | |
24 ngx_iovec_t *headers, int hdr_cnt, | |
25 ngx_file_t fd, off_t offset, size_t nbytes, | |
26 ngx_iovec_t *trailers, int trl_cnt, | |
27 off_t *sent, | |
28 ngx_log_t *log) | |
29 { | |
30 int tfrc, rc; | |
31 ngx_err_t tf_err, err; | |
32 OVERLAPPED olp; | |
33 TRANSMIT_FILE_BUFFERS tfb, *ptfb; | |
34 | |
35 tf_err = 0; | |
36 err = 0; | |
37 | |
38 olp.Internal = 0; | |
39 olp.InternalHigh = 0; | |
40 olp.Offset = (DWORD) offset; | |
41 olp.OffsetHigh = (DWORD) (offset >> 32); | |
42 olp.hEvent = NULL; | |
43 | |
44 if (headers || trailers) { | |
45 tfb.Head = headers->ngx_iov_base; | |
46 tfb.HeadLength = headers->ngx_iov_len; | |
47 tfb.Tail = trailers->ngx_iov_base; | |
48 tfb.TailLength = trailers->ngx_iov_len; | |
49 ptfb = &tfb; | |
50 | |
51 } else { | |
52 ptfb = NULL; | |
53 } | |
54 | |
55 tfrc = TransmitFile(s, fd, nbytes, 0, &olp, ptfb, 0); | |
56 | |
57 if (tfrc == 0) | |
58 tf_err = ngx_socket_errno; | |
59 | |
60 /* set sent */ | |
61 rc = WSAGetOverlappedResult(s, &olp, (unsigned long *) sent, 0, NULL); | |
62 | |
63 ngx_log_debug(log, "ngx_sendfile: %d, @%qd %d:%qd" _ | |
64 tfrc _ offset _ nbytes _ *sent); | |
65 | |
66 if (rc == 0) { | |
67 err = ngx_socket_errno; | |
68 ngx_log_error(NGX_LOG_ERR, log, err, | |
69 "ngx_sendfile: WSAGetOverlappedResult failed"); | |
70 } | |
71 | |
72 if (tfrc == 0) { | |
73 if (tf_err != NGX_EAGAIN) { | |
74 ngx_log_error(NGX_LOG_ERR, log, tf_err, | |
75 "ngx_sendfile: TransmitFile failed"); | |
76 return -1; | |
77 } | |
78 | |
79 ngx_log_error(NGX_LOG_INFO, log, tf_err, | |
80 "ngx_sendfile: TransmitFile sent only %qd bytes", *sent); | |
81 } | |
82 | |
83 if (rc == 0) | |
84 return -1; | |
85 | |
86 return 0; | |
87 } | |
88 | |
89 #endif |