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/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#ifndef INCLUDE_git_zlib_h__
#define INCLUDE_git_zlib_h__
#include <zlib.h>
/**
* @file git2/zlib.h
* @brief Git data compression routines
* @defgroup git_zlib Git data compression routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
#if defined(NO_DEFLATE_BOUND) || ZLIB_VERNUM < 0x1200
/**
* deflateBound returns an upper bound on the compressed size.
*
* This is a stub function used when zlib does not supply the
* deflateBound() implementation itself.
*
* @param stream the stream pointer.
* @param s total length of the source data (in bytes).
* @return maximum length of the compressed data.
*/
GIT_INLINE(size_t) deflateBound(z_streamp stream, size_t s)
{
return (s + ((s + 7) >> 3) + ((s + 63) >> 6) + 11);
}
#endif
/** @} */
GIT_END_DECL
#endif
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