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The function zlib_deflate_workspacesize() now take 2 arguments. This was done to avoid always having to allocate the maximum size workspace (268K). The caller can now specific the windowBits and memLevel compression parameters to get a smaller workspace. For our purposes we introduce a spl_zlib_deflate_workspacesize() wrapper which accepts both arguments. When the two argument version of zlib_deflate_workspacesize() is available the arguments are passed through. When it's not we assume the worst case and a maximally sized workspace is used.
38 lines
1.5 KiB
C
38 lines
1.5 KiB
C
/*****************************************************************************\
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* Copyright (C) 2011 Lawrence Livermore National Security, LLC.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://github.com/behlendorf/spl/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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\*****************************************************************************/
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#ifndef _SPL_ZLIB_COMPAT_H
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#define _SPL_ZLIB_COMPAT_H
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#include <linux/zlib.h>
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#ifdef HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE
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#define spl_zlib_deflate_workspacesize(wb, ml) \
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zlib_deflate_workspacesize(wb, ml)
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#else
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#define spl_zlib_deflate_workspacesize(wb, ml) \
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zlib_deflate_workspacesize()
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#endif /* HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE */
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#endif /* SPL_ZLIB_COMPAT_H */
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