Mercurial > hg > nginx
annotate src/core/ngx_hunk.h @ 148:5afee0074707
nginx-0.0.1-2003-10-17-00:19:16 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 16 Oct 2003 20:19:16 +0000 |
parents | be71fca7f9d7 |
children | eac26585476e |
rev | line source |
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1 #ifndef _NGX_HUNK_H_INCLUDED_ |
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2 #define _NGX_HUNK_H_INCLUDED_ |
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4 |
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5 #include <ngx_config.h> |
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6 #include <ngx_core.h> |
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9 /* hunk type */ |
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11 /* the hunk is in memory */ |
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12 #define NGX_HUNK_IN_MEMORY 0x0001 |
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13 /* the hunk's content can be changed */ |
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14 #define NGX_HUNK_TEMP 0x0002 |
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15 /* the hunk's content is in cache and can not be changed */ |
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16 #define NGX_HUNK_MEMORY 0x0004 |
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17 /* the hunk's content is mmap()ed and can not be changed */ |
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18 #define NGX_HUNK_MMAP 0x0008 |
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20 #define NGX_HUNK_RECYCLED 0x0010 |
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21 |
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22 /* the hunk is in file */ |
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23 #define NGX_HUNK_FILE 0x0100 |
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25 #define NGX_HUNK_STORAGE (NGX_HUNK_IN_MEMORY \ |
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26 |NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP \ |
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27 |NGX_HUNK_RECYCLED|NGX_HUNK_FILE) |
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29 /* hunk flags */ |
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31 /* in thread state flush means to write the hunk completely before return */ |
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32 /* in event state flush means to start to write the hunk */ |
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33 #define NGX_HUNK_FLUSH 0x1000 |
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34 /* last hunk */ |
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35 #define NGX_HUNK_LAST 0x2000 |
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36 #define NGX_HUNK_LAST_SHADOW 0x4000 |
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40 typedef struct ngx_hunk_s ngx_hunk_t; |
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42 struct ngx_hunk_s { |
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43 char *pos; |
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44 char *last; |
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45 off_t file_pos; |
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46 off_t file_last; |
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48 int type; |
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49 char *start; /* start of hunk */ |
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50 char *end; /* end of hunk */ |
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51 char *pre_start; /* start of pre-allocated hunk */ |
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52 char *post_end; /* end of post-allocated hunk */ |
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53 int tag; |
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54 ngx_file_t *file; |
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55 ngx_hunk_t *shadow; |
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56 }; |
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59 typedef struct ngx_chain_s ngx_chain_t; |
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61 struct ngx_chain_s { |
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62 ngx_hunk_t *hunk; |
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63 ngx_chain_t *next; |
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64 }; |
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67 typedef struct { |
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68 int num; |
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69 ssize_t size; |
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70 } ngx_bufs_t; |
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71 |
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73 #define NGX_CHAIN_ERROR (ngx_chain_t *) NGX_ERROR |
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76 #define ngx_hunk_in_memory_only(h) \ |
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77 ((h->type & (NGX_HUNK_IN_MEMORY|NGX_HUNK_FILE)) == NGX_HUNK_IN_MEMORY) |
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78 /* |
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79 ((h->type & (NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP|NGX_HUNK_FILE)) \ |
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80 == (h->type & (NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP))) |
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81 |
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82 */ |
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84 #define ngx_hunk_special(h) \ |
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85 (h->type == (h->type & (NGX_HUNK_FLUSH|NGX_HUNK_LAST))) |
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86 |
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88 #define ngx_hunk_size(h) \ |
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89 ((h->type & NGX_HUNK_IN_MEMORY) ? h->last - h->pos: \ |
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90 (size_t) (h->file_last - h->file_pos)) |
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91 |
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93 ngx_hunk_t *ngx_create_temp_hunk(ngx_pool_t *pool, int size, |
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94 int before, int after); |
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96 #define ngx_alloc_hunk(pool) ngx_palloc(pool, sizeof(ngx_hunk_t)) |
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97 #define ngx_calloc_hunk(pool) ngx_pcalloc(pool, sizeof(ngx_hunk_t)) |
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98 |
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99 #define ngx_alloc_chain_entry(pool) ngx_palloc(pool, sizeof(ngx_chain_t)) |
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101 #define ngx_add_hunk_to_chain(chain, h, pool, error) \ |
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102 do { \ |
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nginx-0.0.1-2003-04-15-19:06:52 import
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103 ngx_test_null(chain, ngx_alloc_chain_entry(pool), error); \ |
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nginx-0.0.1-2002-08-22-19:24:03 import
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104 chain->hunk = h; \ |
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nginx-0.0.1-2002-08-22-19:24:03 import
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105 chain->next = NULL; \ |
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nginx-0.0.1-2002-08-22-19:24:03 import
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106 } while (0); |
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nginx-0.0.1-2002-08-22-19:24:03 import
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107 |
145
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nginx-0.0.1-2003-10-13-20:32:29 import
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108 #define ngx_alloc_ce_and_set_hunk ngx_add_hunk_to_chain |
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nginx-0.0.1-2003-10-13-20:32:29 import
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109 |
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110 |
148
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nginx-0.0.1-2003-10-17-00:19:16 import
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111 #define ngx_chain_add_ce(chain, last, ce) \ |
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nginx-0.0.1-2003-10-13-20:32:29 import
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112 if (chain) { \ |
148
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113 *last = ce; \ |
145
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114 } else { \ |
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115 chain = ce; \ |
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116 } \ |
148
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117 last = &ce->next |
145
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nginx-0.0.1-2003-10-13-20:32:29 import
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118 |
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119 |
134
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nginx-0.0.1-2003-09-26-09:45:21 import
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120 int ngx_chain_add_copy(ngx_pool_t *pool, ngx_chain_t **ch, ngx_chain_t *in); |
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nginx-0.0.1-2003-09-26-09:45:21 import
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121 void ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy, |
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nginx-0.0.1-2003-09-26-09:45:21 import
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122 ngx_chain_t **out); |
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nginx-0.0.1-2003-09-26-09:45:21 import
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123 |
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nginx-0.0.1-2003-09-26-09:45:21 import
Igor Sysoev <igor@sysoev.ru>
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124 |
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nginx-0.0.1-2002-08-22-19:24:03 import
Igor Sysoev <igor@sysoev.ru>
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125 |
100
7ebc8b7fb816
nginx-0.0.1-2003-06-03-19:42:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
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126 #endif /* _NGX_HUNK_H_INCLUDED_ */ |