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annotate src/os/unix/ngx_freebsd_sendfile_chain.c @ 5916:e044893b4587

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merged conditions in the ngx_*_sendfile_chain() functions. No functional changes.
author Valentin Bartenev <vbart@nginx.com>
date Wed, 13 Aug 2014 15:11:45 +0400
parents ac3f78219f85
children 2c64b69daec5
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 265
diff changeset
1
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 265
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
diff changeset
3 * Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 4335
diff changeset
4 * Copyright (C) Nginx, Inc.
272
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 265
diff changeset
5 */
d4e65d74db9f nginx-0.0.2-2004-03-01-00:03:02 import
Igor Sysoev <igor@sysoev.ru>
parents: 265
diff changeset
6
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #include <ngx_config.h>
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
9 #include <ngx_core.h>
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
10 #include <ngx_event.h>
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
12
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
13 /*
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
14 * Although FreeBSD sendfile() allows to pass a header and a trailer,
4133
59b99f217c6d Replaced "can not" with "cannot" and "could not" in a bunch of places.
Ruslan Ermilov <ru@nginx.com>
parents: 3081
diff changeset
15 * it cannot send a header with a part of the file in one packet until
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
16 * FreeBSD 5.3. Besides, over the fast ethernet connection sendfile()
361
446782c909b3 nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
17 * may send the partially filled packets, i.e. the 8 file pages may be sent
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 272
diff changeset
18 * as the 11 full 1460-bytes packets, then one incomplete 324-bytes packet,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 272
diff changeset
19 * and then again the 11 full 1460-bytes packets.
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
20 *
4572
67653855682e Fixed spelling in multiline C comments.
Ruslan Ermilov <ru@nginx.com>
parents: 4499
diff changeset
21 * Therefore we use the TCP_NOPUSH option (similar to Linux's TCP_CORK)
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
22 * to postpone the sending - it not only sends a header and the first part of
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
23 * the file in one packet, but also sends the file pages in the full packets.
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
24 *
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
25 * But until FreeBSD 4.5 turning TCP_NOPUSH off does not flush a pending
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
26 * data that less than MSS, so that data may be sent with 5 second delay.
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
27 * So we do not use TCP_NOPUSH on FreeBSD prior to 4.5, although it can be used
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
28 * for non-keepalive HTTP connections.
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
29 */
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
30
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
31
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
32 ngx_chain_t *
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 483
diff changeset
33 ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
34 {
3065
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
35 int rc, flags;
5915
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5913
diff changeset
36 off_t send, prev_send, sent;
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
37 size_t file_size;
5851
150df089fe47 Removed the "complete" variable from various send chain functions.
Valentin Bartenev <vbart@nginx.com>
parents: 5850
diff changeset
38 ngx_uint_t eintr, eagain;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
39 ngx_err_t err;
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 297
diff changeset
40 ngx_buf_t *file;
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
41 ngx_event_t *wev;
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
42 ngx_chain_t *cl;
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
43 ngx_iovec_t header, trailer;
428
5e73d0ea4dab nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 402
diff changeset
44 struct sf_hdtr hdtr;
5854
b63e829621ab Generalized definitions of the number of preallocated iovec's.
Valentin Bartenev <vbart@nginx.com>
parents: 5851
diff changeset
45 struct iovec headers[NGX_IOVS_PREALLOCATE];
b63e829621ab Generalized definitions of the number of preallocated iovec's.
Valentin Bartenev <vbart@nginx.com>
parents: 5851
diff changeset
46 struct iovec trailers[NGX_IOVS_PREALLOCATE];
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
47
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
48 wev = c->write;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
49
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
50 if (!wev->ready) {
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 143
diff changeset
51 return in;
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 143
diff changeset
52 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 143
diff changeset
53
469
2ff194b74f1e nginx-0.1.9-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 461
diff changeset
54 #if (NGX_HAVE_KQUEUE)
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
55
587
284cc140593b nginx-0.3.15-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 581
diff changeset
56 if ((ngx_event_flags & NGX_USE_KQUEUE_EVENT) && wev->pending_eof) {
537
c9ad0d9c7d59 nginx-0.1.43-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
57 (void) ngx_connection_error(c, wev->kq_errno,
c9ad0d9c7d59 nginx-0.1.43-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
58 "kevent() reported about an closed connection");
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
59 wev->error = 1;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
60 return NGX_CHAIN_ERROR;
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
61 }
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
62
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
63 #endif
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
64
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
65 /* the maximum limit size is the maximum size_t value - the page size */
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
66
1354
f69d1aab6a0f make 64-bit ngx_int_t on 64-bit platforms
Igor Sysoev <igor@sysoev.ru>
parents: 1182
diff changeset
67 if (limit == 0 || limit > (off_t) (NGX_MAX_SIZE_T_VALUE - ngx_pagesize)) {
477
ad1e9ebf93bb nginx-0.1.13-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 473
diff changeset
68 limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize;
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
69 }
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
70
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
71 send = 0;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
72 eagain = 0;
3065
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
73 flags = 0;
361
446782c909b3 nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
74
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
75 header.iovs = headers;
5854
b63e829621ab Generalized definitions of the number of preallocated iovec's.
Valentin Bartenev <vbart@nginx.com>
parents: 5851
diff changeset
76 header.nalloc = NGX_IOVS_PREALLOCATE;
428
5e73d0ea4dab nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 402
diff changeset
77
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
78 trailer.iovs = trailers;
5854
b63e829621ab Generalized definitions of the number of preallocated iovec's.
Valentin Bartenev <vbart@nginx.com>
parents: 5851
diff changeset
79 trailer.nalloc = NGX_IOVS_PREALLOCATE;
428
5e73d0ea4dab nginx-0.0.11-2004-09-16-20:10:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 402
diff changeset
80
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
81 for ( ;; ) {
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
82 eintr = 0;
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
83 prev_send = send;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
84
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 297
diff changeset
85 /* create the header iovec and coalesce the neighbouring bufs */
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
86
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
87 cl = ngx_output_chain_to_iovec(&header, in, limit - send, c->log);
361
446782c909b3 nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
88
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
89 if (cl == NGX_CHAIN_ERROR) {
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
90 return NGX_CHAIN_ERROR;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
91 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
92
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
93 send += header.size;
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
94
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
95 if (cl && cl->buf->in_file && send < limit) {
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 297
diff changeset
96 file = cl->buf;
152
fb48bf4fea1c nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
97
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
Igor Sysoev <igor@sysoev.ru>
parents: 297
diff changeset
98 /* coalesce the neighbouring file bufs */
152
fb48bf4fea1c nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
99
5915
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5913
diff changeset
100 file_size = (size_t) ngx_chain_coalesce_file(&cl, limit - send);
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
101
5915
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5913
diff changeset
102 send += file_size;
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
103
4499
778ef9c3fd2d Fixed spelling in single-line comments.
Ruslan Ermilov <ru@nginx.com>
parents: 4412
diff changeset
104 /* create the trailer iovec and coalesce the neighbouring bufs */
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
105
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
106 cl = ngx_output_chain_to_iovec(&trailer, cl, limit - send, c->log);
361
446782c909b3 nginx-0.0.7-2004-06-20-23:54:15 import
Igor Sysoev <igor@sysoev.ru>
parents: 344
diff changeset
107
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
108 if (cl == NGX_CHAIN_ERROR) {
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
109 return NGX_CHAIN_ERROR;
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
110 }
4596
089cc5154c1e IOV_MAX handling microoptimization.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4572
diff changeset
111
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
112 send += trailer.size;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
113
344
e366ba5db8f8 nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
diff changeset
114 if (ngx_freebsd_use_tcp_nopush
e366ba5db8f8 nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
diff changeset
115 && c->tcp_nopush == NGX_TCP_NOPUSH_UNSET)
e366ba5db8f8 nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
diff changeset
116 {
101
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
117 if (ngx_tcp_nopush(c->fd) == NGX_ERROR) {
5557
188481078faf Use ngx_socket_errno where appropriate.
Piotr Sikora <piotr@cloudflare.com>
parents: 5320
diff changeset
118 err = ngx_socket_errno;
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
119
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
120 /*
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
121 * there is a tiny chance to be interrupted, however,
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
122 * we continue a processing without the TCP_NOPUSH
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
123 */
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
124
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
125 if (err != NGX_EINTR) {
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
126 wev->error = 1;
537
c9ad0d9c7d59 nginx-0.1.43-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
127 (void) ngx_connection_error(c, err,
c9ad0d9c7d59 nginx-0.1.43-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
128 ngx_tcp_nopush_n " failed");
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
129 return NGX_CHAIN_ERROR;
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
130 }
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
131
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
132 } else {
344
e366ba5db8f8 nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
diff changeset
133 c->tcp_nopush = NGX_TCP_NOPUSH_SET;
e366ba5db8f8 nginx-0.0.3-2004-06-01-10:04:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
diff changeset
134
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
135 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
136 "tcp_nopush");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
137 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
138 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
139
4335
1003326eccc5 Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4133
diff changeset
140 /*
1003326eccc5 Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4133
diff changeset
141 * sendfile() does unneeded work if sf_hdtr's count is 0,
1003326eccc5 Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4133
diff changeset
142 * but corresponding pointer is not NULL
1003326eccc5 Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4133
diff changeset
143 */
1003326eccc5 Microoptimization of sendfile(2) usage under FreeBSD.
Maxim Dounin <mdounin@mdounin.ru>
parents: 4133
diff changeset
144
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
145 hdtr.headers = header.count ? header.iovs : NULL;
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
146 hdtr.hdr_cnt = header.count;
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
147 hdtr.trailers = trailer.count ? trailer.iovs : NULL;
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
148 hdtr.trl_cnt = trailer.count;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
149
153
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 152
diff changeset
150 /*
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
151 * the "nbytes bug" of the old sendfile() syscall:
5727
675bda8dcfdb FreeBSD has migrated to Bugzilla.
Sergey Kandaurov <pluknet@nginx.com>
parents: 5557
diff changeset
152 * http://bugs.freebsd.org/33771
153
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 152
diff changeset
153 */
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 152
diff changeset
154
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
155 if (!ngx_freebsd_sendfile_nbytes_bug) {
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
156 header.size = 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
157 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
158
203
c9da5900c79e nginx-0.0.1-2003-12-02-08:47:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 201
diff changeset
159 sent = 0;
c9da5900c79e nginx-0.0.1-2003-12-02-08:47:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 201
diff changeset
160
3065
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
161 #if (NGX_HAVE_AIO_SENDFILE)
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
162 flags = c->aio_sendfile ? SF_NODISKIO : 0;
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
163 #endif
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
164
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
165 rc = sendfile(file->file->fd, c->fd, file->file_pos,
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
166 file_size + header.size, &hdtr, &sent, flags);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
167
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
168 if (rc == -1) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
169 err = ngx_errno;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
170
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
171 switch (err) {
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
172 case NGX_EAGAIN:
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
173 eagain = 1;
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
174 break;
216
f1d0e5f09c1e nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents: 214
diff changeset
175
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
176 case NGX_EINTR:
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
177 eintr = 1;
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
178 break;
152
fb48bf4fea1c nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
179
3065
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
180 #if (NGX_HAVE_AIO_SENDFILE)
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
181 case NGX_EBUSY:
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
182 c->busy_sendfile = file;
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
183 break;
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
184 #endif
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
185
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
186 default:
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
187 wev->error = 1;
537
c9ad0d9c7d59 nginx-0.1.43-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
188 (void) ngx_connection_error(c, err, "sendfile() failed");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
189 return NGX_CHAIN_ERROR;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
190 }
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
191
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
192 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, err,
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
193 "sendfile() sent only %O bytes", sent);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
194
483
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
195 /*
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
196 * sendfile() in FreeBSD 3.x-4.x may return value >= 0
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
197 * on success, although only 0 is documented
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
198 */
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
199
3080
af427e13cfd7 small optimization
Igor Sysoev <igor@sysoev.ru>
parents: 3065
diff changeset
200 } else if (rc >= 0 && sent == 0) {
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
201
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
202 /*
483
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
203 * if rc is OK and sent equal to zero, then someone
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
204 * has truncated the file, so the offset became beyond
621229427cba nginx-0.1.16-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 479
diff changeset
205 * the end of the file
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
206 */
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
207
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
208 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
3081
10bfdd8d5eb9 log offset passed to sendfile()
Igor Sysoev <igor@sysoev.ru>
parents: 3080
diff changeset
209 "sendfile() reported that \"%s\" was truncated at %O",
10bfdd8d5eb9 log offset passed to sendfile()
Igor Sysoev <igor@sysoev.ru>
parents: 3080
diff changeset
210 file->file->name.data, file->file_pos);
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
211
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
212 return NGX_CHAIN_ERROR;
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
213 }
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 444
diff changeset
214
214
e0c502f15852 nginx-0.0.1-2003-12-22-12:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents: 203
diff changeset
215 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 455
diff changeset
216 "sendfile: %d, @%O %O:%uz",
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
217 rc, file->file_pos, sent, file_size + header.size);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
218
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
219 } else {
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
220 rc = writev(c->fd, header.iovs, header.count);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
221
297
ee394e997c77 nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
222 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
5913
8e903522c17a Introduced the ngx_output_chain_to_iovec() function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
223 "writev: %d of %uz", rc, header.size);
297
ee394e997c77 nginx-0.0.3-2004-03-29-21:43:58 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
224
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
225 if (rc == -1) {
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
226 err = ngx_errno;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
227
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
228 switch (err) {
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
229 case NGX_EAGAIN:
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
230 break;
216
f1d0e5f09c1e nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents: 214
diff changeset
231
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
232 case NGX_EINTR:
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
233 eintr = 1;
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
234 break;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
235
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
236 default:
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
237 wev->error = 1;
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
238 ngx_connection_error(c, err, "writev() failed");
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
239 return NGX_CHAIN_ERROR;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
240 }
3063
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
241
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
242 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
6f6d7ea70805 refactor EAGAIN/EINTR processing
Igor Sysoev <igor@sysoev.ru>
parents: 1354
diff changeset
243 "writev() not ready");
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
244 }
89
29bf798b583f nginx-0.0.1-2003-05-15-19:42:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 88
diff changeset
245
143
5526213be452 nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents: 142
diff changeset
246 sent = rc > 0 ? rc : 0;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
247 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
248
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
249 c->sent += sent;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
250
5912
de68ed551bfb Renamed ngx_handle_sent_chain() to ngx_chain_update_sent().
Valentin Bartenev <vbart@nginx.com>
parents: 5868
diff changeset
251 in = ngx_chain_update_sent(in, sent);
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
252
3065
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
253 #if (NGX_HAVE_AIO_SENDFILE)
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
254 if (c->busy_sendfile) {
5320
ad137a80919f Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents: 4596
diff changeset
255 return in;
3065
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
256 }
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
257 #endif
113cd532b328 aio sendfile
Igor Sysoev <igor@sysoev.ru>
parents: 3063
diff changeset
258
152
fb48bf4fea1c nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
259 if (eagain) {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
260
153
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 152
diff changeset
261 /*
479
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
262 * sendfile() may return EAGAIN, even if it has sent a whole file
c52408583801 nginx-0.1.14-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 477
diff changeset
263 * part, it indicates that the successive sendfile() call would
253
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
264 * return EAGAIN right away and would not send anything.
b6793bc5034b nginx-0.0.2-2004-02-09-10:46:43 import
Igor Sysoev <igor@sysoev.ru>
parents: 218
diff changeset
265 * We use it as a hint.
153
c71aeb75c071 nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents: 152
diff changeset
266 */
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
267
170
c42be4185301 nginx-0.0.1-2003-11-03-01:56:18 import
Igor Sysoev <igor@sysoev.ru>
parents: 163
diff changeset
268 wev->ready = 0;
5320
ad137a80919f Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents: 4596
diff changeset
269 return in;
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
270 }
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
271
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
272 if (eintr) {
5868
6bbad2e73245 Fixed counting of sent bytes in the send chain functions on EINTR.
Valentin Bartenev <vbart@nginx.com>
parents: 5854
diff changeset
273 send = prev_send + sent;
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
274 continue;
152
fb48bf4fea1c nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
275 }
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
276
5851
150df089fe47 Removed the "complete" variable from various send chain functions.
Valentin Bartenev <vbart@nginx.com>
parents: 5850
diff changeset
277 if (send - prev_send != sent) {
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
278 wev->ready = 0;
5320
ad137a80919f Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents: 4596
diff changeset
279 return in;
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
280 }
152
fb48bf4fea1c nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
281
5320
ad137a80919f Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents: 4596
diff changeset
282 if (send >= limit || in == NULL) {
ad137a80919f Don't lose pointer to first nonempty buf in ngx_*_sendfile_chain().
Gleb Smirnoff <glebius@nginx.com>
parents: 4596
diff changeset
283 return in;
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 361
diff changeset
284 }
142
cb77c084acdb nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 103
diff changeset
285 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
286 }