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comparison src/os/win32/ngx_sendfile.c @ 0:4eff17414a43

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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>
date Tue, 06 Aug 2002 16:39:45 +0000
parents
children 34a521b1a148
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-1:000000000000 0:4eff17414a43
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