/*
* Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.max.vm.heap.gcx;
import com.sun.max.unsafe.*;
import com.sun.max.vm.heap.gcx.rset.ctbl.*;
/**
* Allocator into a card space. The allocator must take care of updating the card's space FOT.
* @see CardFirstObjectTable
*
* @param <T> a card-table aware refiller
*/
public final class CardSpaceAllocator<T extends Refiller> extends BaseAtomicBumpPointerAllocator<T> {
private final CardFirstObjectTable cfoTable;
public CardSpaceAllocator(T refillManager, CardTableRSet cardTableRSet) {
super(refillManager);
cfoTable = cardTableRSet.cfoTable;
}
@Override
public Pointer allocateRaw(Size size) {
Pointer cell = bumpAllocate(size);
cfoTable.set(cell, size);
return cell;
}
@Override
public Pointer allocateCleared(Size size) {
Pointer cell = clearAllocatedCell(bumpAllocate(size), size);
cfoTable.set(cell, size);
return cell;
}
}