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annotate src/core/ngx_hunk.h @ 1:d220029ac7f3

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nginx-0.0.1-2002-08-15-21:20:26 import
author Igor Sysoev <igor@sysoev.ru>
date Thu, 15 Aug 2002 17:20:26 +0000
parents 4eff17414a43
children 34a521b1a148
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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1 #ifndef _NGX_CHUNK_H_INCLUDED_
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2 #define _NGX_CHUNK_H_INCLUDED_
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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5 #include <ngx_config.h>
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6 #include <ngx_types.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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7 #include <ngx_alloc.h>
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10 /* hunk type */
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12 /* temp means that hunk's content can be changed */
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13 /* other type means that hunk's content can not be changed */
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14 #define NGX_HUNK_TEMP 0x0001
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15 #define NGX_HUNK_MEMORY 0x0002
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16 #define NGX_HUNK_MMAP 0x0004
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17 #define NGX_HUNK_FILE 0x0008
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19 /* hunk flags */
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21 /* in thread state flush means to write the hunk completely before return */
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22 /* in event state flush means to start to write the hunk */
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23 #define NGX_HUNK_FLUSH 0x0100
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24 /* last hunk */
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25 #define NGX_HUNK_LAST 0x0200
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26 /* can be used with NGX_HUNK_LAST only */
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27 #define NGX_HUNK_SHUTDOWN 0x0400
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30 #define NGX_HUNK_IN_MEMORY (NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP)
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34 typedef struct ngx_hunk_s ngx_hunk_t;
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35 struct ngx_hunk_s {
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36 union {
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37 char *mem; /* start of current data */
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38 off_t file;
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39 } pos;
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40 union {
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41 char *mem; /* end of current data */
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42 off_t file;
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43 } last;
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44 int type;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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45 char *start; /* start of hunk */
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46 char *end; /* end of hunk */
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47 char *pre_start; /* start of pre-allocated hunk */
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48 char *post_end; /* end of post-allocated hunk */
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49 int tag;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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50 ngx_file_t fd;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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51 };
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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53 typedef struct ngx_chain_s ngx_chain_t;
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54 struct ngx_chain_s {
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55 ngx_hunk_t *hunk;
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56 ngx_chain_t *next;
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57 };
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60 ngx_hunk_t *ngx_get_hunk(ngx_pool_t *pool, int size, int before, int after);
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63 #endif /* _NGX_CHUNK_H_INCLUDED_ */