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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758/* zconf.h -- configuration of the zlib compression library * Copyright (C) 1995-1998 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h */
/* @(#) $Id$ */
#ifndef _ZCONF_H#define _ZCONF_H
/* The memory requirements for deflate are (in bytes): (1 << (windowBits+2)) + (1 << (memLevel+9)) that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) plus a few kilobytes for small objects. For example, if you want to reduce the default memory requirements from 256K to 128K, compile with make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" Of course this will generally degrade compression (there's no free lunch).
The memory requirements for inflate are (in bytes) 1 << windowBits that is, 32K for windowBits=15 (default value) plus a few kilobytes for small objects.*/
/* Maximum value for memLevel in deflateInit2 */#ifndef MAX_MEM_LEVEL# define MAX_MEM_LEVEL 8#endif
/* Maximum value for windowBits in deflateInit2 and inflateInit2. * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files * created by gzip. (Files created by minigzip can still be extracted by * gzip.) */#ifndef MAX_WBITS# define MAX_WBITS 15 /* 32K LZ77 window */#endif
/* default windowBits for decompression. MAX_WBITS is for compression only */#ifndef DEF_WBITS# define DEF_WBITS MAX_WBITS#endif
/* default memLevel */#if MAX_MEM_LEVEL >= 8# define DEF_MEM_LEVEL 8#else# define DEF_MEM_LEVEL MAX_MEM_LEVEL#endif
/* Type declarations */
typedef unsigned char Byte; /* 8 bits */typedef unsigned int uInt; /* 16 bits or more */typedef unsigned long uLong; /* 32 bits or more */typedef void *voidp;
#endif /* _ZCONF_H */