annotate src/core/ngx_buf.c @ 7690:8253424d1aff

Added size check to ngx_http_alloc_large_header_buffer(). This ensures that copying won't write more than the buffer size even if the buffer comes from hc->free and it is smaller than the large client header buffer size in the virtual host configuration. This might happen if size of large client header buffers is different in name-based virtual hosts, similarly to the problem with number of buffers fixed in 6926:e662cbf1b932.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 06 Aug 2020 05:02:22 +0300
parents da9941c9b01b
children c7a8bdf5af55
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
Igor Sysoev <igor@sysoev.ru>
parents: 436
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: 436
diff changeset
2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 441
diff changeset
3 * Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 4114
diff changeset
4 * Copyright (C) Nginx, Inc.
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: 436
diff changeset
5 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 436
diff changeset
6
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7
42
cd035a94e0b6 nginx-0.0.1-2002-12-27-10:27:47 import
Igor Sysoev <igor@sysoev.ru>
parents: 16
diff changeset
8 #include <ngx_config.h>
100
7ebc8b7fb816 nginx-0.0.1-2003-06-03-19:42:58 import
Igor Sysoev <igor@sysoev.ru>
parents: 93
diff changeset
9 #include <ngx_core.h>
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
12 ngx_buf_t *
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
13 ngx_create_temp_buf(ngx_pool_t *pool, size_t size)
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14 {
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: 290
diff changeset
15 ngx_buf_t *b;
16
6ce4755737b4 nginx-0.0.1-2002-09-26-20:50:29 import
Igor Sysoev <igor@sysoev.ru>
parents: 8
diff changeset
16
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
17 b = ngx_calloc_buf(pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
18 if (b == NULL) {
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: 290
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19 return NULL;
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: 290
diff changeset
20 }
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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21
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
22 b->start = ngx_palloc(pool, size);
d4ea69372b94 nginx-0.1.25-RELEASE import
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diff changeset
23 if (b->start == NULL) {
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: 290
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24 return NULL;
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: 290
diff changeset
25 }
166
389d7ee9fa60 nginx-0.0.1-2003-10-30-11:51:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 160
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26
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
27 /*
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
28 * set by ngx_calloc_buf():
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
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29 *
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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30 * b->file_pos = 0;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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31 * b->file_last = 0;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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32 * b->file = NULL;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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33 * b->shadow = NULL;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
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34 * b->tag = 0;
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 507
diff changeset
35 * and flags
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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36 */
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
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37
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: 290
diff changeset
38 b->pos = b->start;
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: 290
diff changeset
39 b->last = b->start;
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: 290
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40 b->end = b->last + size;
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: 290
diff changeset
41 b->temporary = 1;
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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42
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: 290
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43 return b;
0
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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44 }
93
738fe44c70d5 nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 76
diff changeset
45
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
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46
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
47 ngx_chain_t *
507
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
48 ngx_alloc_chain_link(ngx_pool_t *pool)
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
49 {
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
50 ngx_chain_t *cl;
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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51
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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52 cl = pool->chain;
cd3117ad9aab nginx-0.1.28-RELEASE import
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parents: 501
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53
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
54 if (cl) {
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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55 pool->chain = cl->next;
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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56 return cl;
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
57 }
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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58
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
59 cl = ngx_palloc(pool, sizeof(ngx_chain_t));
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
60 if (cl == NULL) {
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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61 return NULL;
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
62 }
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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63
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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64 return cl;
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
65 }
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
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66
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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67
cd3117ad9aab nginx-0.1.28-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 501
diff changeset
68 ngx_chain_t *
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
69 ngx_create_chain_of_bufs(ngx_pool_t *pool, ngx_bufs_t *bufs)
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
70 {
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: 290
diff changeset
71 u_char *p;
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 239
diff changeset
72 ngx_int_t i;
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: 290
diff changeset
73 ngx_buf_t *b;
160
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Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
74 ngx_chain_t *chain, *cl, **ll;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
75
501
d4ea69372b94 nginx-0.1.25-RELEASE import
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76 p = ngx_palloc(pool, bufs->num * bufs->size);
d4ea69372b94 nginx-0.1.25-RELEASE import
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parents: 499
diff changeset
77 if (p == NULL) {
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: 290
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78 return NULL;
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: 290
diff changeset
79 }
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
80
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
81 ll = &chain;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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82
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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83 for (i = 0; i < bufs->num; i++) {
501
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84
d4ea69372b94 nginx-0.1.25-RELEASE import
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85 b = ngx_calloc_buf(pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
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diff changeset
86 if (b == NULL) {
343
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87 return NULL;
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: 290
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88 }
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
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89
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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90 /*
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
91 * set by ngx_calloc_buf():
64d9afb209da nginx-0.1.24-RELEASE import
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diff changeset
92 *
64d9afb209da nginx-0.1.24-RELEASE import
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93 * b->file_pos = 0;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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94 * b->file_last = 0;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
95 * b->file = NULL;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
96 * b->shadow = NULL;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
97 * b->tag = 0;
509
9b8c906f6e63 nginx-0.1.29-RELEASE import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
98 * and flags
499
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99 *
64d9afb209da nginx-0.1.24-RELEASE import
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100 */
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diff changeset
101
343
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parents: 290
diff changeset
102 b->pos = p;
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parents: 290
diff changeset
103 b->last = p;
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parents: 290
diff changeset
104 b->temporary = 1;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
105
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: 290
diff changeset
106 b->start = p;
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: 290
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107 p += bufs->size;
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: 290
diff changeset
108 b->end = p;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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diff changeset
109
501
d4ea69372b94 nginx-0.1.25-RELEASE import
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110 cl = ngx_alloc_chain_link(pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
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diff changeset
111 if (cl == NULL) {
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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112 return NULL;
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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diff changeset
113 }
6bdf858bff8c nginx-0.0.3-2004-05-28-19:49:23 import; rename ngx_hunk_t to ngx_buf_t
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114
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: 290
diff changeset
115 cl->buf = b;
160
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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parents: 155
diff changeset
116 *ll = cl;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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diff changeset
117 ll = &cl->next;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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diff changeset
118 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
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diff changeset
119
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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diff changeset
120 *ll = NULL;
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121
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
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diff changeset
122 return chain;
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
123 }
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
124
e7e094d34162 nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents: 155
diff changeset
125
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
126 ngx_int_t
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
127 ngx_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain, ngx_chain_t *in)
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
128 {
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
129 ngx_chain_t *cl, **ll;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
130
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
131 ll = chain;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
132
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
133 for (cl = *chain; cl; cl = cl->next) {
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
134 ll = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
135 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
136
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
137 while (in) {
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
138 cl = ngx_alloc_chain_link(pool);
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
139 if (cl == NULL) {
7282
da9941c9b01b Leave chain in ngx_chain_add_copy() in consistent state on errors.
Sergey Kandaurov <pluknet@nginx.com>
parents: 6874
diff changeset
140 *ll = NULL;
501
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
141 return NGX_ERROR;
d4ea69372b94 nginx-0.1.25-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 499
diff changeset
142 }
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
143
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: 290
diff changeset
144 cl->buf = in->buf;
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
145 *ll = cl;
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
146 ll = &cl->next;
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
147 in = in->next;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
148 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
149
155
46eb23d9471d nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents: 154
diff changeset
150 *ll = NULL;
136
da00cde00e8a nginx-0.0.1-2003-10-02-09:39:37 import
Igor Sysoev <igor@sysoev.ru>
parents: 135
diff changeset
151
134
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
152 return NGX_OK;
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
153 }
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
154
d57c6835225c nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
parents: 132
diff changeset
155
581
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
156 ngx_chain_t *
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
157 ngx_chain_get_free_buf(ngx_pool_t *p, ngx_chain_t **free)
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
158 {
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
159 ngx_chain_t *cl;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
160
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
161 if (*free) {
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
162 cl = *free;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
163 *free = cl->next;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
164 cl->next = NULL;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
165 return cl;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
166 }
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
167
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
168 cl = ngx_alloc_chain_link(p);
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
169 if (cl == NULL) {
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
170 return NULL;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
171 }
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
172
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
173 cl->buf = ngx_calloc_buf(p);
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
174 if (cl->buf == NULL) {
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
175 return NULL;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
176 }
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
177
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
178 cl->next = NULL;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
179
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
180 return cl;
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
181 }
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
182
326634fb9d47 nginx-0.3.12-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 509
diff changeset
183
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
184 void
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
185 ngx_chain_update_chains(ngx_pool_t *p, ngx_chain_t **free, ngx_chain_t **busy,
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
186 ngx_chain_t **out, ngx_buf_tag_t tag)
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
187 {
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
188 ngx_chain_t *cl;
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
189
6797
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
190 if (*out) {
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
191 if (*busy == NULL) {
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
192 *busy = *out;
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
193
6797
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
194 } else {
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
195 for (cl = *busy; cl->next; cl = cl->next) { /* void */ }
455
295d97d70c69 nginx-0.1.2-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 452
diff changeset
196
6797
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
197 cl->next = *out;
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
198 }
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
199
40c2f3e06d23 Core: slight optimization in ngx_chain_update_chains().
hucongcong <hucong.c@foxmail.com>
parents: 5915
diff changeset
200 *out = NULL;
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
201 }
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
202
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
203 while (*busy) {
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
204 cl = *busy;
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
205
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
206 if (ngx_buf_size(cl->buf) != 0) {
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
207 break;
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
208 }
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
209
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
210 if (cl->buf->tag != tag) {
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
211 *busy = cl->next;
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
212 ngx_free_chain(p, cl);
135
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
213 continue;
e29909bd9b8a nginx-0.0.1-2003-09-28-23:29:06 import
Igor Sysoev <igor@sysoev.ru>
parents: 134
diff changeset
214 }
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
215
4114
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
216 cl->buf->pos = cl->buf->start;
5db098f97e0e API change: ngx_chain_update_chains() now requires pool.
Maxim Dounin <mdounin@mdounin.ru>
parents: 2414
diff changeset
217 cl->buf->last = cl->buf->start;
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
218
499
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
219 *busy = cl->next;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
220 cl->next = *free;
64d9afb209da nginx-0.1.24-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents: 469
diff changeset
221 *free = cl;
132
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
222 }
949f45d1589a nginx-0.0.1-2003-09-24-20:44:13 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
223 }
5850
f9c83484d9ce Moved the code for adjusting sent buffers in a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 4412
diff changeset
224
f9c83484d9ce Moved the code for adjusting sent buffers in a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 4412
diff changeset
225
5915
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
226 off_t
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
227 ngx_chain_coalesce_file(ngx_chain_t **in, off_t limit)
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
228 {
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
229 off_t total, size, aligned, fprev;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
230 ngx_fd_t fd;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
231 ngx_chain_t *cl;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
232
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
233 total = 0;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
234
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
235 cl = *in;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
236 fd = cl->buf->file->fd;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
237
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
238 do {
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
239 size = cl->buf->file_last - cl->buf->file_pos;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
240
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
241 if (size > limit - total) {
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
242 size = limit - total;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
243
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
244 aligned = (cl->buf->file_pos + size + ngx_pagesize - 1)
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
245 & ~((off_t) ngx_pagesize - 1);
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
246
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
247 if (aligned <= cl->buf->file_last) {
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
248 size = aligned - cl->buf->file_pos;
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
249 }
6874
7cc2d3a96ea3 Fixed trailer construction with limit on FreeBSD and macOS.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6797
diff changeset
250
7cc2d3a96ea3 Fixed trailer construction with limit on FreeBSD and macOS.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6797
diff changeset
251 total += size;
7cc2d3a96ea3 Fixed trailer construction with limit on FreeBSD and macOS.
Maxim Dounin <mdounin@mdounin.ru>
parents: 6797
diff changeset
252 break;
5915
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
253 }
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
Valentin Bartenev <vbart@nginx.com>
parents: 5912
diff changeset
254
ac3f78219f85 Moved the code for coalescing file buffers to a separate function.
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255 total += size;
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256 fprev = cl->buf->file_pos + size;
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257 cl = cl->next;
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258
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259 } while (cl
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260 && cl->buf->in_file
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261 && total < limit
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262 && fd == cl->buf->file->fd
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263 && fprev == cl->buf->file_pos);
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264
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265 *in = cl;
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266
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267 return total;
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268 }
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269
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270
5850
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271 ngx_chain_t *
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272 ngx_chain_update_sent(ngx_chain_t *in, off_t sent)
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273 {
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274 off_t size;
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275
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276 for ( /* void */ ; in; in = in->next) {
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277
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278 if (ngx_buf_special(in->buf)) {
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279 continue;
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280 }
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281
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282 if (sent == 0) {
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283 break;
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284 }
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285
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286 size = ngx_buf_size(in->buf);
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287
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288 if (sent >= size) {
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289 sent -= size;
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290
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291 if (ngx_buf_in_memory(in->buf)) {
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292 in->buf->pos = in->buf->last;
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293 }
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294
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295 if (in->buf->in_file) {
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296 in->buf->file_pos = in->buf->file_last;
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297 }
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298
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299 continue;
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300 }
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301
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302 if (ngx_buf_in_memory(in->buf)) {
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303 in->buf->pos += (size_t) sent;
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304 }
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diff changeset
305
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306 if (in->buf->in_file) {
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307 in->buf->file_pos += sent;
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308 }
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309
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310 break;
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311 }
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312
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313 return in;
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314 }