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comparison src/os/unix/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
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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 FreeBSD:
12 check sent if errno == EINTR then should return right sent.
13 */
14
15 /*
16 returns
17 0 done
18 -1 error
19 */
20
21 #if (HAVE_FREEBSD_SENDFILE)
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 rc, i;
31 ngx_err_t err;
32 struct sf_hdtr hdtr;
33
34 hdtr.headers = headers;
35 hdtr.hdr_cnt = hdr_cnt;
36 hdtr.trailers = trailers;
37 hdtr.trl_cnt = trl_cnt;
38
39 #if (HAVE_FREEBSD_SENDFILE_NBYTES_BUG)
40 for (i = 0; i < hdr_cnt; i++)
41 nbytes += headers[i].iov_len;
42 #endif
43
44 rc = sendfile(fd, s, offset, nbytes, &hdtr, sent, 0);
45
46 if (rc == -1) {
47 err = ngx_socket_errno;
48 if (err != NGX_EAGAIN && err != NGX_EINTR) {
49 ngx_log_error(NGX_LOG_ERR, log, err,
50 "ngx_sendfile: sendfile failed");
51 return -1;
52
53 } else {
54 ngx_log_error(NGX_LOG_INFO, log, err,
55 "ngx_sendfile: sendfile sent only %qd bytes", *sent);
56 }
57 }
58
59 ngx_log_debug(log, "ngx_sendfile: %d, @%qd %d:%qd" _
60 rc _ offset _ nbytes _ *sent);
61
62 return 0;
63 }
64
65 #endif