annotate src/os/unix/ngx_aio_write_chain.c @ 577:4d9ea73a627a release-0.3.10

nginx-0.3.10-RELEASE import *) Change: the "valid_referers" directive and the "$invalid_referer" variable were moved to the new ngx_http_referer_module from the ngx_http_rewrite_module. *) Change: the "$apache_bytes_sent" variable name was changed to "$body_bytes_sent". *) Feature: the "$sent_http_..." variables. *) Feature: the "if" directive supports the "=" and "!=" operations. *) Feature: the "proxy_pass" directive supports the HTTPS protocol. *) Feature: the "proxy_set_body" directive. *) Feature: the "post_action" directive. *) Feature: the ngx_http_empty_gif_module. *) Feature: the "worker_cpu_affinity" directive for Linux. *) Bugfix: the "rewrite" directive did not unescape URI part in redirect, now it is unescaped except the %00-%25 and %7F-%FF characters. *) Bugfix: nginx could not be built by the icc 9.0 compiler. *) Bugfix: if the SSI was enabled for zero size static file, then the chunked response was encoded incorrectly.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 15 Nov 2005 13:30:52 +0000
parents d4ea69372b94
children f69d1aab6a0f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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parents: 362
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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
Igor Sysoev <igor@sysoev.ru>
parents: 362
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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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parents:
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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:
diff changeset
8 #include <ngx_core.h>
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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parents: 95
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9 #include <ngx_event.h>
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
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parents: 63
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10 #include <ngx_aio.h>
63
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
Igor Sysoev <igor@sysoev.ru>
parents:
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12
577
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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13 ngx_chain_t *
4d9ea73a627a nginx-0.3.10-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
14 ngx_aio_write_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
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15 {
298
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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parents: 343
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17 off_t send, sent;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
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18 size_t len;
461
a88a3e4e158f nginx-0.1.5-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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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_chain_t *cl;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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21
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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22 /* the maximum limit size is the maximum size_t value - the page size */
8e8f3af115b5 nginx-0.1.11-RELEASE import
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23
477
ad1e9ebf93bb nginx-0.1.13-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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24 if (limit == 0 || limit > NGX_MAX_SIZE_T_VALUE - ngx_pagesize) {
ad1e9ebf93bb nginx-0.1.13-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 473
diff changeset
25 limit = NGX_MAX_SIZE_T_VALUE - ngx_pagesize;
473
8e8f3af115b5 nginx-0.1.11-RELEASE import
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26 }
8e8f3af115b5 nginx-0.1.11-RELEASE import
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27
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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28 send = 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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29 sent = 0;
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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30 cl = in;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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31
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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32 while (cl) {
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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33
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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34 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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35 cl = cl->next;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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36 continue;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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parents: 144
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37 }
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ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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38
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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parents: 95
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39 /* we can post the single aio operation only */
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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40
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
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41 if (!c->write->ready) {
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84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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42 return cl;
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
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43 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
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44
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: 298
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45 buf = cl->buf->pos;
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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parents: 144
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46 prev = buf;
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
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47 len = 0;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
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48
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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parents: 298
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49 /* coalesce the neighbouring bufs */
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ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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50
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7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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parents: 343
diff changeset
51 while (cl && prev == cl->buf->pos && send < limit) {
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
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52 if (ngx_buf_special(cl->buf)) {
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
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53 continue;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
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54 }
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
parents: 343
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55
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
Igor Sysoev <igor@sysoev.ru>
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56 size = cl->buf->last - cl->buf->pos;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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57
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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58 if (send + size > limit) {
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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parents: 343
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59 size = limit - send;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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60 }
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
Igor Sysoev <igor@sysoev.ru>
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62 len += size;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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63 prev = cl->buf->pos + size;
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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parents: 343
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64 send += size;
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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65 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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66 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
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67
362
7650aea1816f nginx-0.0.7-2004-06-21-19:59:32 import
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68 n = ngx_aio_write(c, buf, len);
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36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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parents:
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69
461
a88a3e4e158f nginx-0.1.5-RELEASE import
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70 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_write: %z", n);
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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parents:
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71
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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parents: 144
diff changeset
72 if (n == NGX_ERROR) {
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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73 return NGX_CHAIN_ERROR;
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
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74 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
diff changeset
75
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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diff changeset
76 if (n > 0) {
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
diff changeset
77 sent += n;
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
Igor Sysoev <igor@sysoev.ru>
parents: 144
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78 c->sent += n;
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
diff changeset
79 }
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
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80
257
70e1c7d2b83d nginx-0.0.2-2004-02-11-20:08:49 import
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parents: 248
diff changeset
81 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
461
a88a3e4e158f nginx-0.1.5-RELEASE import
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parents: 444
diff changeset
82 "aio_write sent: %O", c->sent);
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
diff changeset
83
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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parents: 144
diff changeset
84 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:
diff changeset
85
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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parents: 298
diff changeset
86 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
Igor Sysoev <igor@sysoev.ru>
parents: 298
diff changeset
87 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
Igor Sysoev <igor@sysoev.ru>
parents: 298
diff changeset
88 cl->buf->pos = cl->buf->last;
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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parents: 95
diff changeset
89
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
diff changeset
90 continue;
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
diff changeset
91 }
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 95
diff changeset
92
343
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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parents: 298
diff changeset
93 cl->buf->pos += sent;
144
ef8c87afcfc5 nginx-0.0.1-2003-10-12-20:49:16 import
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parents: 95
diff changeset
94
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
95 break;
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
96 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
97 }
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
98
164
84036764e215 nginx-0.0.1-2003-10-29-11:30:44 import
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parents: 144
diff changeset
99 return cl;
63
36d2c25cc9bb nginx-0.0.1-2003-02-26-23:21:43 import
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parents:
diff changeset
100 }