The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/inflate.h

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    1 /*
    2  * ----------------------------------------------------------------------------
    3  * "THE BEER-WARE LICENSE" (Revision 42):
    4  * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
    5  * can do whatever you want with this stuff. If we meet some day, and you think
    6  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
    7  * ----------------------------------------------------------------------------
    8  *
    9  * $FreeBSD: src/sys/sys/inflate.h,v 1.11 1999/12/29 04:24:42 peter Exp $
   10  * $DragonFly: src/sys/sys/inflate.h,v 1.4 2006/05/20 02:42:13 dillon Exp $
   11  *
   12  */
   13 #ifndef _SYS_INFLATE_H_
   14 #define _SYS_INFLATE_H_
   15 
   16 #if defined(_KERNEL) || defined(KZIP)
   17 
   18 #ifndef _SYS_TYPES_H_
   19 #include <sys/types.h>
   20 #endif
   21 
   22 #define GZ_EOF -1
   23 
   24 #define GZ_WSIZE 0x8000
   25 
   26 /*
   27  * Global variables used by inflate and friends.
   28  * This structure is used in order to make inflate() reentrant.
   29  */
   30 struct inflate {
   31         /* Public part */
   32 
   33         /* This pointer is passed along to the two functions below */
   34         void           *gz_private;
   35 
   36         /* Fetch next character to be uncompressed */
   37         int             (*gz_input) (void *);
   38 
   39         /* Dispose of uncompressed characters */
   40         int             (*gz_output) (void *, u_char *, u_long);
   41 
   42         /* Private part */
   43         u_long          gz_bb;  /* bit buffer */
   44         unsigned        gz_bk;  /* bits in bit buffer */
   45         unsigned        gz_hufts;       /* track memory usage */
   46         struct huft    *gz_fixed_tl;    /* must init to NULL !! */
   47         struct huft    *gz_fixed_td;
   48         int             gz_fixed_bl;
   49         int             gz_fixed_bd;
   50         u_char         *gz_slide;
   51         unsigned        gz_wp;
   52 };
   53 
   54 int inflate     (struct inflate *);
   55 
   56 #endif  /* _KERNEL || KZIP */
   57 
   58 #endif  /* ! _SYS_INFLATE_H_ */

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