blob: 281d4bd3b186f51685660325dc0ec8359bc41227 [file] [log] [blame]
/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "CopyVisitor.h"
#include "CopyVisitorInlines.h"
#include "CopyWorkList.h"
#include "GCThreadSharedData.h"
#include "JSCell.h"
#include "JSObject.h"
#include <wtf/Threading.h>
namespace JSC {
CopyVisitor::CopyVisitor(GCThreadSharedData& shared)
: m_shared(shared)
{
}
void CopyVisitor::copyFromShared()
{
size_t next, end;
m_shared.getNextBlocksToCopy(next, end);
while (next < end) {
for (; next < end; ++next) {
CopiedBlock* block = m_shared.m_blocksToCopy[next];
if (!block->hasWorkList())
continue;
CopyWorkList& workList = block->workList();
for (CopyWorkList::iterator it = workList.begin(); it != workList.end(); ++it)
visitCell(*it);
ASSERT(!block->liveBytes());
m_shared.m_copiedSpace->recycleEvacuatedBlock(block);
}
m_shared.getNextBlocksToCopy(next, end);
}
ASSERT(next == end);
}
} // namespace JSC