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comparison src/core/ngx_buf.c @ 48:6cfc63e68377 NGINX_0_1_24

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nginx 0.1.24 *) Feature: the ngx_http_ssi_filter_module supports the QUERY_STRING and DOCUMENT_URI variables. *) Bugfix: the ngx_http_autoindex_module may some times return the 404 response for existent directory, if this directory was used in "alias" directive. *) Bugfix: the ngx_http_ssi_filter_module ran incorrectly for large responses. *) Bugfix: the lack of the "Referer" header line was always accounted as valid referrer.
author Igor Sysoev <http://sysoev.ru>
date Fri, 04 Mar 2005 00:00:00 +0300
parents 6f8b0dc0f8dd
children 72eb30262aac
comparison
equal deleted inserted replaced
47:4ae32548452c 48:6cfc63e68377
6 6
7 #include <ngx_config.h> 7 #include <ngx_config.h>
8 #include <ngx_core.h> 8 #include <ngx_core.h>
9 9
10 10
11 ngx_buf_t *ngx_create_temp_buf(ngx_pool_t *pool, size_t size) 11 ngx_buf_t *
12 ngx_create_temp_buf(ngx_pool_t *pool, size_t size)
12 { 13 {
13 ngx_buf_t *b; 14 ngx_buf_t *b;
14 15
15 if (!(b = ngx_calloc_buf(pool))) { 16 if (!(b = ngx_calloc_buf(pool))) {
16 return NULL; 17 return NULL;
18 19
19 if (!(b->start = ngx_palloc(pool, size))) { 20 if (!(b->start = ngx_palloc(pool, size))) {
20 return NULL; 21 return NULL;
21 } 22 }
22 23
24 /*
25 * set by ngx_calloc_buf():
26 *
27 * b->file_pos = 0;
28 * b->file_last = 0;
29 * b->file = NULL;
30 * b->shadow = NULL;
31 * b->tag = 0;
32 *
33 */
34
23 b->pos = b->start; 35 b->pos = b->start;
24 b->last = b->start; 36 b->last = b->start;
25 b->end = b->last + size; 37 b->end = b->last + size;
26 b->temporary = 1; 38 b->temporary = 1;
27 39
28 /*
29
30 b->file_pos = 0;
31 b->file_last = 0;
32
33 b->file = NULL;
34 b->shadow = NULL;
35
36 b->tag = 0;
37
38 */
39
40 return b; 40 return b;
41 } 41 }
42 42
43 43
44 ngx_chain_t *ngx_create_chain_of_bufs(ngx_pool_t *pool, ngx_bufs_t *bufs) 44 ngx_chain_t *
45 ngx_create_chain_of_bufs(ngx_pool_t *pool, ngx_bufs_t *bufs)
45 { 46 {
46 u_char *p; 47 u_char *p;
47 ngx_int_t i; 48 ngx_int_t i;
48 ngx_buf_t *b; 49 ngx_buf_t *b;
49 ngx_chain_t *chain, *cl, **ll; 50 ngx_chain_t *chain, *cl, **ll;
57 for (i = 0; i < bufs->num; i++) { 58 for (i = 0; i < bufs->num; i++) {
58 if (!(b = ngx_calloc_buf(pool))) { 59 if (!(b = ngx_calloc_buf(pool))) {
59 return NULL; 60 return NULL;
60 } 61 }
61 62
63 /*
64 * set by ngx_calloc_buf():
65 *
66 * b->file_pos = 0;
67 * b->file_last = 0;
68 * b->file = NULL;
69 * b->shadow = NULL;
70 * b->tag = 0;
71 *
72 */
73
62 b->pos = p; 74 b->pos = p;
63 b->last = p; 75 b->last = p;
64 b->temporary = 1; 76 b->temporary = 1;
65 77
66 b->start = p; 78 b->start = p;
67 p += bufs->size; 79 p += bufs->size;
68 b->end = p; 80 b->end = p;
69
70 /*
71 b->file_pos = 0;
72 b->file_last = 0;
73
74 b->file = NULL;
75 b->shadow = NULL;
76 b->tag = 0;
77 */
78 81
79 if (!(cl = ngx_alloc_chain_link(pool))) { 82 if (!(cl = ngx_alloc_chain_link(pool))) {
80 return NULL; 83 return NULL;
81 } 84 }
82 85
89 92
90 return chain; 93 return chain;
91 } 94 }
92 95
93 96
94 ngx_int_t ngx_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain, 97 ngx_int_t
95 ngx_chain_t *in) 98 ngx_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **chain, ngx_chain_t *in)
96 { 99 {
97 ngx_chain_t *cl, **ll; 100 ngx_chain_t *cl, **ll;
98 101
99 ll = chain; 102 ll = chain;
100 103
115 118
116 return NGX_OK; 119 return NGX_OK;
117 } 120 }
118 121
119 122
120 void ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy, 123 void
121 ngx_chain_t **out, ngx_buf_tag_t tag) 124 ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy,
125 ngx_chain_t **out, ngx_buf_tag_t tag)
122 { 126 {
123 ngx_chain_t *tl; 127 ngx_chain_t *cl;
124 128
125 if (*busy == NULL) { 129 if (*busy == NULL) {
126 *busy = *out; 130 *busy = *out;
127 131
128 } else { 132 } else {
129 for (tl = *busy; tl->next; tl = tl->next) { 133 for (cl = *busy; cl->next; cl = cl->next) { /* void */ }
130 /* void */;
131 }
132 134
133 tl->next = *out; 135 cl->next = *out;
134 } 136 }
135 137
136 *out = NULL; 138 *out = NULL;
137 139
138 while (*busy) { 140 while (*busy) {
152 } 154 }
153 155
154 (*busy)->buf->pos = (*busy)->buf->start; 156 (*busy)->buf->pos = (*busy)->buf->start;
155 (*busy)->buf->last = (*busy)->buf->start; 157 (*busy)->buf->last = (*busy)->buf->start;
156 158
157 tl = *busy; 159 cl = *busy;
158 *busy = (*busy)->next; 160 *busy = cl->next;
159 tl->next = *free; 161 cl->next = *free;
160 *free = tl; 162 *free = cl;
161 } 163 }
162 } 164 }