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poison.h
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/*
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* Copyright (C) 2003-2010 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License 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 this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_POISON_H
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#define MPD_POISON_H
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#include "
check.h
"
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#ifndef NDEBUG
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#ifdef HAVE_VALGRIND_MEMCHECK_H
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#include <valgrind/memcheck.h>
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#endif
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#include <string.h>
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#endif
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static
inline
void
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poison_noaccess
(
void
*p,
size_t
length)
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{
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#ifdef NDEBUG
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(void)p;
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(void)length;
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#else
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memset(p, 0x01, length);
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#ifdef HAVE_VALGRIND_MEMCHECK_H
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(void)VALGRIND_MAKE_MEM_NOACCESS(p, length);
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#endif
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#endif
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}
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static
inline
void
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poison_undefined
(
void
*p,
size_t
length)
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{
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#ifdef NDEBUG
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(void)p;
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(void)length;
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#else
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memset(p, 0x02, length);
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#ifdef HAVE_VALGRIND_MEMCHECK_H
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(void)VALGRIND_MAKE_MEM_UNDEFINED(p, length);
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#endif
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#endif
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}
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#endif
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