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comparison src/core/ngx_buf.h @ 441:da8c5707af39

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nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
author Igor Sysoev <igor@sysoev.ru>
date Tue, 28 Sep 2004 08:34:51 +0000
parents 4e21d1291a14
children 42d11f017717
comparison
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440:f390d1775430 441:da8c5707af39
1
2 /*
3 * Copyright (C) 2002-2004 Igor Sysoev
4 */
5
6
1 #ifndef _NGX_BUF_H_INCLUDED_ 7 #ifndef _NGX_BUF_H_INCLUDED_
2 #define _NGX_BUF_H_INCLUDED_ 8 #define _NGX_BUF_H_INCLUDED_
3 9
4 10
5 #include <ngx_config.h> 11 #include <ngx_config.h>
6 #include <ngx_core.h> 12 #include <ngx_core.h>
7 13
8 14
9 #if 0 15 typedef void * ngx_buf_tag_t;
10 /* the buf type */
11 16
12 /* the buf's content is in memory */ 17 typedef struct ngx_buf_s ngx_buf_t;
13 #define NGX_HUNK_IN_MEMORY 0x0001
14 /* the buf's content can be changed */
15 #define NGX_HUNK_TEMP 0x0002
16 /* the buf's content is in cache and can not be changed */
17 #define NGX_HUNK_MEMORY 0x0004
18 #define NGX_HUNK_MMAP 0x0008
19
20 /* the buf's content is recycled */
21 #define NGX_HUNK_RECYCLED 0x0010
22
23 /* the buf's content is in a file */
24 #define NGX_HUNK_FILE 0x0020
25
26 #define NGX_HUNK_STORAGE (NGX_HUNK_IN_MEMORY \
27 |NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP \
28 |NGX_HUNK_RECYCLED|NGX_HUNK_FILE)
29
30 /* the buf flags */
31
32 /* in thread state flush means to write the buf completely before return */
33 /* in event state flush means to start to write the buf */
34 #define NGX_HUNK_FLUSH 0x0100
35
36 /* the last buf */
37 #define NGX_HUNK_LAST 0x0200
38
39
40 #define NGX_HUNK_PREREAD 0x2000
41 #define NGX_HUNK_LAST_SHADOW 0x4000
42 #define NGX_HUNK_TEMP_FILE 0x8000
43 #endif
44
45
46 typedef void * ngx_buf_tag_t;
47
48 typedef struct ngx_buf_s ngx_buf_t;
49 18
50 struct ngx_buf_s { 19 struct ngx_buf_s {
51 u_char *pos; 20 u_char *pos;
52 u_char *last; 21 u_char *last;
53 off_t file_pos; 22 off_t file_pos;
59 ngx_buf_tag_t tag; 28 ngx_buf_tag_t tag;
60 ngx_file_t *file; 29 ngx_file_t *file;
61 ngx_buf_t *shadow; 30 ngx_buf_t *shadow;
62 31
63 32
64 /* the buf's content can be changed */ 33 /* the buf's content could be changed */
65 unsigned temporary:1; 34 unsigned temporary:1;
66 35
67 /* 36 /*
68 * the buf's content is in a memory cache or in a read only memory 37 * the buf's content is in a memory cache or in a read only memory
69 * and can not be changed 38 * and must not be changed
70 */ 39 */
71 unsigned memory:1; 40 unsigned memory:1;
72 41
73 /* the buf's content is mmap()ed and can not be changed */ 42 /* the buf's content is mmap()ed and must not be changed */
74 unsigned mmap:1; 43 unsigned mmap:1;
44
75 unsigned recycled:1; 45 unsigned recycled:1;
76 unsigned in_file:1; 46 unsigned in_file:1;
77 unsigned flush:1; 47 unsigned flush:1;
78 unsigned last_buf:1; 48 unsigned last_buf:1;
79 49