annotate src/os/unix/ngx_aio_write_chain.c @ 473:8e8f3af115b5 release-0.1.11

nginx-0.1.11-RELEASE import *) Feature: the worker_priority directive. *) Change: both tcp_nopush and tcp_nodelay directives affect the transferred response. *) Bugfix: nginx did not call initgroups(). Thanks to Andrew Sitnikov and Andrei Nigmatulin. *) Change: now the ngx_http_autoindex_module shows the file size in the bytes. *) Bugfix: the ngx_http_autoindex_module returned the 500 error if the broken symlink was in a directory. *) Bugfix: the files bigger than 4G could not be transferred using sendfile. *) Bugfix: if the backend was resolved to several backends and there was an error while the response waiting then process may got caught in an endless loop. *) Bugfix: the worker process may exit with the "unknown cycle" message when the /dev/poll method was used. *) Bugfix: "close() channel failed" errors. *) Bugfix: the autodetection of the "nobody" and "nogroup" groups. *) Bugfix: the send_lowat directive did not work on Linux. *) Bugfix: the segmentation fault occurred if there was no events section in configuration. *) Bugfix: nginx could not be built on OpenBSD. *) Bugfix: the double slashes in "://" in the URI were converted to ":/".
author Igor Sysoev <igor@sysoev.ru>
date Thu, 02 Dec 2004 18:40:46 +0000
parents a88a3e4e158f
children ad1e9ebf93bb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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5
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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6
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
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7 #include <ngx_config.h>
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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parents:
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8 #include <ngx_core.h>
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ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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9 #include <ngx_event.h>
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738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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10 #include <ngx_aio.h>
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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11
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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12
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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13 ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in,
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
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14 off_t limit)
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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15 {
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4a3f18406832 nginx-0.0.3-2004-03-30-10:27:36 import
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16 u_char *buf, *prev;
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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17 off_t send, sent;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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18 size_t len;
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a88a3e4e158f nginx-0.1.5-RELEASE import
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19 ssize_t n, size;
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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20 ngx_err_t err;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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21 ngx_chain_t *cl;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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22
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8e8f3af115b5 nginx-0.1.11-RELEASE import
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23 /* the maximum limit size is the maximum size_t value - the page size */
8e8f3af115b5 nginx-0.1.11-RELEASE import
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24
8e8f3af115b5 nginx-0.1.11-RELEASE import
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25 if (limit == 0 || limit > MAX_SIZE_T_VALUE - ngx_pagesize) {
8e8f3af115b5 nginx-0.1.11-RELEASE import
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26 limit = MAX_SIZE_T_VALUE - ngx_pagesize;
8e8f3af115b5 nginx-0.1.11-RELEASE import
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27 }
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28
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29 send = 0;
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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30 sent = 0;
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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31 cl = in;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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32
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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33 while (cl) {
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34
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35 if (cl->buf->pos == cl->buf->last) {
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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36 cl = cl->next;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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37 continue;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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38 }
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39
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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40 /* we can post the single aio operation only */
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41
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389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
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42 if (!c->write->ready) {
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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43 return cl;
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44 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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45
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6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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46 buf = cl->buf->pos;
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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47 prev = buf;
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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48 len = 0;
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49
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50 /* coalesce the neighbouring bufs */
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51
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52 while (cl && prev == cl->buf->pos && send < limit) {
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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53 if (ngx_buf_special(cl->buf)) {
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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54 continue;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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55 }
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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56
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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57 size = cl->buf->last - cl->buf->pos;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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58
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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59 if (send + size > limit) {
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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60 size = limit - send;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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61 }
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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62
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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63 len += size;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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64 prev = cl->buf->pos + size;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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65 send += size;
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66 cl = cl->next;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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67 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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68
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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69 n = ngx_aio_write(c, buf, len);
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70
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71 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_write: %z", n);
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72
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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73 if (n == NGX_ERROR) {
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ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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74 return NGX_CHAIN_ERROR;
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75 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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76
164
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77 if (n > 0) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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78 sent += n;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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79 c->sent += n;
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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80 }
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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81
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
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82 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
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83 "aio_write sent: %O", c->sent);
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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diff changeset
84
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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85 for (cl = in; cl; cl = cl->next) {
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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parents:
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86
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diff changeset
87 if (sent >= cl->buf->last - cl->buf->pos) {
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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88 sent -= cl->buf->last - cl->buf->pos;
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89 cl->buf->pos = cl->buf->last;
144
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90
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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91 continue;
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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diff changeset
92 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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93
343
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94 cl->buf->pos += sent;
144
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95
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
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96 break;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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97 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
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98 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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99
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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100 return cl;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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101 }