Mercurial > hg > nginx

annotate src/os/unix/ngx_freebsd_sendfile_chain.c @ 101:2e069b6e6920

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-06-04-21:28:33 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 04 Jun 2003 17:28:33 +0000
parents a059e1aa65d4
children 6dfda4cf5200
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
1
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
2 #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
3 #include <ngx_core.h>
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
4 #include <ngx_freebsd_init.h>
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
5
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
6
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
7 /*
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
8 sendfile() often sends 4K pages over ethernet in 3 packets: 2x1460 and 1176
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
9 or in 6 packets: 5x1460 and 892. Besides although sendfile() allows
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
10 to pass the header and the trailer it never sends the header or the trailer
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
11 with the part of the file in one packet. So we use TCP_NOPUSH (similar
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
12 to Linux's TCP_CORK) to postpone the sending - it not only sends the header
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
13 and the first part of the file in one packet but also sends 4K pages
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
14 in the full packets.
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
15
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 96
diff changeset
16 Until FreeBSD 4.5 the turning TCP_NOPUSH off does not not flush
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 96
diff changeset
17 the pending data that less than MSS and the data sent with 5 second delay.
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 96
diff changeset
18 So we use TCP_NOPUSH on FreeBSD 4.5+ only.
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
19 */
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
20
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
21
94
8220378432a8 nginx-0.0.1-2003-05-22-19:23:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 89
diff changeset
22 ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
23 {
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
24 int rc, eintr, tcp_nopush;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
25 char *prev;
67
5a7d1aaa1618 nginx-0.0.1-2003-03-11-23:38:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 63
diff changeset
26 size_t hsize, size;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
27 off_t sent;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
28 struct iovec *iov;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
29 struct sf_hdtr hdtr;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
30 ngx_err_t err;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
31 ngx_array_t header, trailer;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
32 ngx_hunk_t *file;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
33 ngx_chain_t *ce, *tail;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
34
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
35 tcp_nopush = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
36
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
37 do {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
38 ce = in;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
39 file = NULL;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
40 hsize = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
41 eintr = 0;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
42
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
43 ngx_init_array(header, c->pool, 10, sizeof(struct iovec),
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
44 NGX_CHAIN_ERROR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
45 ngx_init_array(trailer, c->pool, 10, sizeof(struct iovec),
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
46 NGX_CHAIN_ERROR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
47
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
48 /* create the header iovec */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
49 if (ngx_hunk_in_memory_only(ce->hunk)) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
50 prev = NULL;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
51 iov = NULL;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
52
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
53 /* create the iovec and coalesce the neighbouring chain entries */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
54 while (ce && ngx_hunk_in_memory_only(ce->hunk)) {
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
55
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
56 if (prev == ce->hunk->pos) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
57 iov->iov_len += ce->hunk->last - ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
58 prev = ce->hunk->last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
59
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
60 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
61 ngx_test_null(iov, ngx_push_array(&header),
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
62 NGX_CHAIN_ERROR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
63 iov->iov_base = ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
64 iov->iov_len = ce->hunk->last - ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
65 prev = ce->hunk->last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
66 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
67
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
68 hsize += ce->hunk->last - ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
69
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
70 ce = ce->next;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
71 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
72 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
73
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
74 /* TODO: coalesce the neighbouring file hunks */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
75 if (ce && (ce->hunk->type & NGX_HUNK_FILE)) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
76 file = ce->hunk;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
77 ce = ce->next;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
78 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
79
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
80 /* create the trailer iovec */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
81 if (ce && ngx_hunk_in_memory_only(ce->hunk)) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
82 prev = NULL;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
83 iov = NULL;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
84
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
85 /* create the iovec and coalesce the neighbouring chain entries */
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
86 while (ce && ngx_hunk_in_memory_only(ce->hunk)) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
87
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
88 if (prev == ce->hunk->pos) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
89 iov->iov_len += ce->hunk->last - ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
90 prev = ce->hunk->last;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
91
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
92 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
93 ngx_test_null(iov, ngx_push_array(&trailer),
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
94 NGX_CHAIN_ERROR);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
95 iov->iov_base = ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
96 iov->iov_len = ce->hunk->last - ce->hunk->pos;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
97 prev = ce->hunk->last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
98 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
99
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
100 ce = ce->next;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
101 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
102 }
67
5a7d1aaa1618 nginx-0.0.1-2003-03-11-23:38:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 63
diff changeset
103
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
104 tail = ce;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
105
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
106 if (file) {
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
107
101
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
108 if (!c->tcp_nopush && c->tcp_nopush_enabled) {
99
a059e1aa65d4 nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents: 96
diff changeset
109 c->tcp_nopush = 1;
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
110 tcp_nopush = 1;
101
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
111 if (ngx_tcp_nopush(c->fd) == NGX_ERROR) {
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
112 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
113 ngx_tcp_nopush_n " failed");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
114 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
115 }
101
2e069b6e6920 nginx-0.0.1-2003-06-04-21:28:33 import
Igor Sysoev <igor@sysoev.ru>
parents: 99
diff changeset
116 ngx_log_debug(c->log, "NOPUSH");
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
117 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
118
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
119 hdtr.headers = (struct iovec *) header.elts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
120 hdtr.hdr_cnt = header.nelts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
121 hdtr.trailers = (struct iovec *) trailer.elts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
122 hdtr.trl_cnt = trailer.nelts;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
123
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
124 if (ngx_freebsd_sendfile_nbytes_bug == 0) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
125 hsize = 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
126 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
128 rc = sendfile(file->file->fd, c->fd, file->file_pos,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
129 (size_t) (file->file_last - file->file_pos) + hsize,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
130 &hdtr, &sent, 0);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
131
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
132 if (rc == -1) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
133 err = ngx_errno;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
134
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
135 if (err == NGX_EINTR) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
136 eintr = 1;
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 if (err == NGX_EAGAIN || err == NGX_EINTR) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
140 ngx_log_error(NGX_LOG_INFO, c->log, err,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
141 "sendfile() sent only %qd bytes", sent);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
142
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
143 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
144 ngx_log_error(NGX_LOG_CRIT, c->log, err,
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
145 "sendfile() failed");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
146 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
147 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
148 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
149
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
150 #if (NGX_DEBUG_WRITE_CHAIN)
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
151 ngx_log_debug(c->log, "sendfile: %d, @%qd %qd:%d" _
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
152 rc _ file->file_pos _ sent _
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
153 (size_t) (file->file_last - file->file_pos) + hsize);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
154 #endif
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
155
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
156 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
157 rc = writev(c->fd, (struct iovec *) header.elts, header.nelts);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
158
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
159 if (rc == -1) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
160 err = ngx_errno;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
161 if (err == NGX_EAGAIN) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
162 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EAGAIN");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
163
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
164 } else if (err == NGX_EINTR) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
165 eintr = 1;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
166 ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EINTR");
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 } else {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
169 ngx_log_error(NGX_LOG_CRIT, c->log, err, "writev() failed");
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
170 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
171 }
88
674d333f4296 nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 74
diff changeset
172 }
89
29bf798b583f nginx-0.0.1-2003-05-15-19:42:53 import
Igor Sysoev <igor@sysoev.ru>
parents: 88
diff changeset
173
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
174 sent = rc > 0 ? rc : 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
175
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
176 #if (NGX_DEBUG_WRITE_CHAIN)
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
177 ngx_log_debug(c->log, "writev: %qd" _ sent);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
178 #endif
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
179 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
180
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
181 c->sent += sent;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
182
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
183 for (ce = in; ce && sent > 0; ce = ce->next) {
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
184
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
185 if (ce->hunk->type & NGX_HUNK_IN_MEMORY) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
186 size = ce->hunk->last - ce->hunk->pos;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
187 } else {
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
188 size = ce->hunk->file_last - ce->hunk->file_pos;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
189 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
190
96
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
191 if (sent >= size) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
192 sent -= size;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
193
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
194 if (ce->hunk->type & NGX_HUNK_IN_MEMORY) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
195 ce->hunk->pos = ce->hunk->last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
196 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
197
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
198 if (ce->hunk->type & NGX_HUNK_FILE) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
199 ce->hunk->file_pos = ce->hunk->file_last;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
200 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
201
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
202 continue;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
203 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
204
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
205 if (ce->hunk->type & NGX_HUNK_IN_MEMORY) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
206 ce->hunk->pos += sent;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
207 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
208
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
209 if (ce->hunk->type & NGX_HUNK_FILE) {
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
210 ce->hunk->file_pos += sent;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
211 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
212
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
213 break;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
214 }
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
215
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
216 ngx_destroy_array(&trailer);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
217 ngx_destroy_array(&header);
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 in = ce;
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
220
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
221 } while ((tail && tail == ce) || eintr);
a23d010f356d nginx-0.0.1-2003-05-27-16:18:54 import
Igor Sysoev <igor@sysoev.ru>
parents: 94
diff changeset
222
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
223 return ce;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
224 }