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/*
This file is part of the KDE libraries
Copyright (C) 1999 Waldo Bastian (bastian@kde.org)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
//----------------------------------------------------------------------------
//
// KDE HTML Widget -- Objects
// $Id: kallocator.cpp,v 1.4 2000/10/09 21:29:00 zander Exp $
#include "kallocator.h"
#include <kdebug.h>
KZoneAllocator::KZoneAllocator(long _blockSize)
: blockSize(_blockSize), blockOffset(0)
{
currentBlock = new char[_blockSize];
memoryBlocks.append(currentBlock);
}
KZoneAllocator::~KZoneAllocator()
{
while (!memoryBlocks.isEmpty())
{
char *oldBuffer = (char *) memoryBlocks.take(0);
delete [] oldBuffer;
}
}
void *
KZoneAllocator::allocate(size_t _size)
{
// Use the size of (void *) as alignment
const size_t alignment = sizeof(void *);
_size = (_size + alignment - 1) & ~(alignment - 1);
if ((long) _size + blockOffset > blockSize)
{
currentBlock = new char[blockSize];
memoryBlocks.append(currentBlock);
blockOffset = 0;
kdDebug () << "Allocating block #" << memoryBlocks.count() << endl;
}
void *result = (void *)(currentBlock+blockOffset);
blockOffset += _size;
return result;
}
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