Mercurial > hg > nginx
diff src/core/ngx_hunk.h @ 0:4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
The first code that uses "ngx_" prefix, the previous one used "gx_" prefix.
At that point the code is not yet usable. The first draft ideas are dated
back to 23.10.2001.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 06 Aug 2002 16:39:45 +0000 |
parents | |
children | d220029ac7f3 |
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new file mode 100644 --- /dev/null +++ b/src/core/ngx_hunk.h @@ -0,0 +1,57 @@ +#ifndef _NGX_CHUNK_H_INCLUDED_ +#define _NGX_CHUNK_H_INCLUDED_ + + +#include <ngx_config.h> +#include <ngx_types.h> +#include <ngx_alloc.h> + + +/* type */ +#define NGX_HUNK_TEMP 0x0001 +#define NGX_HUNK_MEMORY 0x0002 +#define NGX_HUNK_MMAP 0x0004 +#define NGX_HUNK_FILE 0x0008 +#define NGX_HUNK_FLUSH 0x0010 +/* in thread state flush means to write the hunk completely before return + in event-driven state flush means to start to write the hunk */ +#define NGX_HUNK_LAST 0x0020 + +#define NGX_HUNK_IN_MEMORY (NGX_HUNK_TEMP | NGX_HUNK_MEMORY | NGX_HUNK_MMAP ) +#define NGX_HUNK_TYPE 0x0ffff + +/* flags */ +#define NGX_HUNK_SHUTDOWN 0x10000 +/* can be used with NGX_HUNK_LAST only */ + + +typedef struct ngx_hunk_s ngx_hunk_t; +struct ngx_hunk_s { + union { + char *p; /* start of current data */ + off_t f; + } pos; + union { + char *p; /* end of current data */ + off_t f; + } last; + int type; + char *start; /* start of hunk */ + char *end; /* end of hunk */ + char *pre_start; /* start of pre-allocated hunk */ + char *post_end; /* end of post-allocated hunk */ + int tag; + ngx_file_t fd; +}; + +typedef struct ngx_chain_s ngx_chain_t; +struct ngx_chain_s { + ngx_hunk_t *hunk; + ngx_chain_t *next; +}; + + +ngx_hunk_t *ngx_get_hunk(ngx_pool_t *pool, int size, int before, int after); + + +#endif /* _NGX_CHUNK_H_INCLUDED_ */