nginx: src/os/unix/ngx_readv

annotate src/os/unix/ngx_readv_chain.c @ 627:387450de0b4d release-0.3.35

nginx-0.3.35-RELEASE import *) Bugfix: the accept-filter and the TCP_DEFER_ACCEPT option were set for first "listen" directive only; the bug had appeared in 0.3.31. *) Bugfix: in the "proxy_pass" directive without the URI part in a subrequest.

author	Igor Sysoev <igor@sysoev.ru>
date	Tue, 28 Mar 2006 12:24:47 +0000
parents	608cf78b24ef
children	ac33852faaac

rev	line source
441 da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files Igor Sysoev <igor@sysoev.ru> parents: 375 diff changeset	1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files Igor Sysoev <igor@sysoev.ru> parents: 375 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
441 da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files Igor Sysoev <igor@sysoev.ru> parents: 375 diff changeset	4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files Igor Sysoev <igor@sysoev.ru> parents: 375 diff changeset	5
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	6
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	7 #include <ngx_config.h>
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	8 #include <ngx_core.h>
103 6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import Igor Sysoev <igor@sysoev.ru> parents: 93 diff changeset	9 #include <ngx_event.h>
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	10
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	11
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	12 #define NGX_IOVS 16
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	13
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	14
469 2ff194b74f1e nginx-0.1.9-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 455 diff changeset	15 #if (NGX_HAVE_KQUEUE)
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	16
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	17 ssize_t
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	18 ngx_readv_chain(ngx_connection_t c, ngx_chain_t chain)
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	19 {
290 87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import Igor Sysoev <igor@sysoev.ru> parents: 257 diff changeset	20 u_char *prev;
164 84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import Igor Sysoev <igor@sysoev.ru> parents: 163 diff changeset	21 ssize_t n, size;
74 17ab1af8c3dd nginx-0.0.1-2003-04-11-20:01:14 import Igor Sysoev <igor@sysoev.ru> parents: 73 diff changeset	22 ngx_err_t err;
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	23 ngx_array_t vec;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	24 ngx_event_t *rev;
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	25 struct iovec *iov, iovs[NGX_IOVS];
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	26
577 4d9ea73a627a nginx-0.3.10-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 561 diff changeset	27 rev = c->read;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	28
455 295d97d70c69 nginx-0.1.2-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 444 diff changeset	29 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	30 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	31 "readv: eof:%d, avail:%d, err:%d",
375 744ccb59062d nginx-0.0.7-2004-07-02-19:54:34 import Igor Sysoev <igor@sysoev.ru> parents: 343 diff changeset	32 rev->pending_eof, rev->available, rev->kq_errno);
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	33
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	34 if (rev->available == 0) {
587 284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	35 if (rev->pending_eof) {
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	36 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	37 rev->eof = 1;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	38
587 284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	39 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	40 "kevent() reported about an closed connection");
284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	41
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	42 if (rev->kq_errno) {
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	43 rev->error = 1;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	44 ngx_set_socket_errno(rev->kq_errno);
587 284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	45 return NGX_ERROR;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	46 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	47
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	48 return 0;
587 284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	49
284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	50 } else {
284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	51 return NGX_AGAIN;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	52 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	53 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	54 }
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	55
163 fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	56 prev = NULL;
89 29bf798b583f nginx-0.0.1-2003-05-15-19:42:53 import Igor Sysoev <igor@sysoev.ru> parents: 83 diff changeset	57 iov = NULL;
164 84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import Igor Sysoev <igor@sysoev.ru> parents: 163 diff changeset	58 size = 0;
89 29bf798b583f nginx-0.0.1-2003-05-15-19:42:53 import Igor Sysoev <igor@sysoev.ru> parents: 83 diff changeset	59
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	60 vec.elts = iovs;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	61 vec.nelts = 0;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	62 vec.size = sizeof(struct iovec);
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	63 vec.nalloc = NGX_IOVS;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	64 vec.pool = c->pool;
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	65
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: 328 diff changeset	66 /* coalesce the neighbouring bufs */
150 ad5f382c9e7d nginx-0.0.1-2003-10-19-23:57:23 import Igor Sysoev <igor@sysoev.ru> parents: 103 diff changeset	67
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 151 diff changeset	68 while (chain) {
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: 328 diff changeset	69 if (prev == chain->buf->last) {
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: 328 diff changeset	70 iov->iov_len += chain->buf->end - chain->buf->last;
163 fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	71
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	72 } else {
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	73 iov = ngx_array_push(&vec);
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	74 if (iov == NULL) {
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	75 return NGX_ERROR;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	76 }
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	77
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: 328 diff changeset	78 iov->iov_base = (void *) chain->buf->last;
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: 328 diff changeset	79 iov->iov_len = chain->buf->end - chain->buf->last;
163 fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	80 }
fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	81
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: 328 diff changeset	82 size += chain->buf->end - chain->buf->last;
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: 328 diff changeset	83 prev = chain->buf->end;
155 46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import Igor Sysoev <igor@sysoev.ru> parents: 151 diff changeset	84 chain = chain->next;
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	85 }
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	86
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	87 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	88 "readv: %d, last:%d", vec.nelts, iov->iov_len);
75 869b10be682f nginx-0.0.1-2003-04-14-21:04:58 import Igor Sysoev <igor@sysoev.ru> parents: 74 diff changeset	89
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	90 rev = c->read;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	91
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	92 do {
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	93 n = readv(c->fd, (struct iovec *) vec.elts, vec.nelts);
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	94
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	95 if (n >= 0) {
455 295d97d70c69 nginx-0.1.2-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 444 diff changeset	96 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	97 rev->available -= n;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	98
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	99 /*
587 284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	100 * rev->available may be negative here because some additional
284cc140593b nginx-0.3.15-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 581 diff changeset	101 * bytes may be received between kevent() and recv()
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	102 */
163 fb61ba77beba nginx-0.0.1-2003-10-28-18:45:41 import Igor Sysoev <igor@sysoev.ru> parents: 155 diff changeset	103
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	104 if (rev->available <= 0) {
375 744ccb59062d nginx-0.0.7-2004-07-02-19:54:34 import Igor Sysoev <igor@sysoev.ru> parents: 343 diff changeset	105 if (!rev->pending_eof) {
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	106 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	107 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	108
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	109 if (rev->available < 0) {
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	110 rev->available = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	111 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	112 }
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	113
605 5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	114 if (n == 0) {
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	115
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	116 /*
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	117 * on FreeBSD recv() may return 0 on closed socket
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	118 * even if kqueue reported about available data
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	119 */
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	120
627 387450de0b4d nginx-0.3.35-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 609 diff changeset	121 #if 0
605 5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	122 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
609 608cf78b24ef nginx-0.3.26-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 605 diff changeset	123 "readv() returned 0 while kevent() reported "
605 5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	124 "%d available bytes", rev->available);
627 387450de0b4d nginx-0.3.35-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 609 diff changeset	125 #endif
605 5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	126
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	127 rev->eof = 1;
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	128 rev->available = 0;
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	129 }
5dac8c7fb71b nginx-0.3.24-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 587 diff changeset	130
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	131 return n;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	132 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	133
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	134 if (n < size) {
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	135 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	136 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	137
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	138 if (n == 0) {
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	139 rev->eof = 1;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	140 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	141
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	142 return n;
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	143 }
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	144
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	145 err = ngx_socket_errno;
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	146
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	147 if (err == NGX_EAGAIN \|\| err == NGX_EINTR) {
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	148 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	149 "readv() not ready");
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	150 n = NGX_AGAIN;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	151
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	152 } else {
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	153 n = ngx_connection_error(c, err, "readv() failed");
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	154 break;
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	155 }
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	156
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	157 } while (err == NGX_EINTR);
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	158
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	159 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	160
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	161 if (n == NGX_ERROR){
164 84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import Igor Sysoev <igor@sysoev.ru> parents: 163 diff changeset	162 c->read->error = 1;
73 4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	163 }
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	164
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	165 return n;
4534060fde92 nginx-0.0.1-2003-04-10-19:08:54 import Igor Sysoev <igor@sysoev.ru> parents: diff changeset	166 }
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	167
469 2ff194b74f1e nginx-0.1.9-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 455 diff changeset	168 #else /* ! NGX_HAVE_KQUEUE */
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	169
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	170 ssize_t
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	171 ngx_readv_chain(ngx_connection_t c, ngx_chain_t chain)
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	172 {
305 4b1a3a4acc60 nginx-0.0.3-2004-04-02-19:13:20 import Igor Sysoev <igor@sysoev.ru> parents: 303 diff changeset	173 u_char *prev;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	174 ssize_t n, size;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	175 ngx_err_t err;
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	176 ngx_array_t vec;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	177 ngx_event_t *rev;
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	178 struct iovec *iov, iovs[NGX_IOVS];
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	179
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	180 prev = NULL;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	181 iov = NULL;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	182 size = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	183
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	184 vec.elts = iovs;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	185 vec.nelts = 0;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	186 vec.size = sizeof(struct iovec);
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	187 vec.nalloc = NGX_IOVS;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	188 vec.pool = c->pool;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	189
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: 328 diff changeset	190 /* coalesce the neighbouring bufs */
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	191
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	192 while (chain) {
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: 328 diff changeset	193 if (prev == chain->buf->last) {
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: 328 diff changeset	194 iov->iov_len += chain->buf->end - chain->buf->last;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	195
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	196 } else {
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	197 iov = ngx_array_push(&vec);
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	198 if (iov == NULL) {
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	199 return NGX_ERROR;
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	200 }
d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	201
561 e48ebafc6939 nginx-0.3.2-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 501 diff changeset	202 iov->iov_base = (void *) chain->buf->last;
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: 328 diff changeset	203 iov->iov_len = chain->buf->end - chain->buf->last;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	204 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	205
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: 328 diff changeset	206 size += chain->buf->end - chain->buf->last;
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: 328 diff changeset	207 prev = chain->buf->end;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	208 chain = chain->next;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	209 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	210
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	211 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	212 "readv: %d:%d", vec.nelts, iov->iov_len);
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	213
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	214 rev = c->read;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	215
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	216 do {
501 d4ea69372b94 nginx-0.1.25-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 469 diff changeset	217 n = readv(c->fd, (struct iovec *) vec.elts, vec.nelts);
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	218
328 fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	219 if (n == 0) {
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	220 rev->ready = 0;
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	221 rev->eof = 1;
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	222
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	223 return n;
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	224
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	225 } else if (n > 0) {
fb4dfb2ac0fc nginx-0.0.3-2004-04-28-10:14:50 import Igor Sysoev <igor@sysoev.ru> parents: 305 diff changeset	226
455 295d97d70c69 nginx-0.1.2-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 444 diff changeset	227 if (n < size && !(ngx_event_flags & NGX_USE_GREEDY_EVENT)) {
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	228 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	229 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	230
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	231 return n;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	232 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	233
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	234 err = ngx_socket_errno;
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	235
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	236 if (err == NGX_EAGAIN \|\| err == NGX_EINTR) {
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	237 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, err,
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	238 "readv() not ready");
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	239 n = NGX_AGAIN;
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	240
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	241 } else {
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	242 n = ngx_connection_error(c, err, "readv() failed");
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	243 break;
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	244 }
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	245
257 70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import Igor Sysoev <igor@sysoev.ru> parents: 188 diff changeset	246 } while (err == NGX_EINTR);
188 0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	247
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	248 rev->ready = 0;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	249
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	250 if (n == NGX_ERROR){
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	251 c->read->error = 1;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	252 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	253
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	254 return n;
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	255 }
0061d1f0908d nginx-0.0.1-2003-11-18-11:04:34 import Igor Sysoev <igor@sysoev.ru> parents: 164 diff changeset	256
469 2ff194b74f1e nginx-0.1.9-RELEASE import Igor Sysoev <igor@sysoev.ru> parents: 455 diff changeset	257 #endif /* NGX_HAVE_KQUEUE */

Mercurial > hg > nginx

annotate src/os/unix/ngx_readv_chain.c @ 627:387450de0b4d release-0.3.35