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/*
* Copyright (C) 2013 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.
*/
#pragma once
#include "HandleBlock.h"
#include <wtf/FastMalloc.h>
WTF_ALLOW_UNSAFE_BUFFER_USAGE_BEGIN
namespace JSC {
inline HandleBlock* HandleBlock::create(HandleSet* handleSet)
{
return new (NotNull, fastAlignedMalloc(blockSize, blockSize)) HandleBlock(handleSet);
}
inline void HandleBlock::destroy(HandleBlock* block)
{
block->~HandleBlock();
fastAlignedFree(block);
}
inline HandleBlock::HandleBlock(HandleSet* handleSet)
: DoublyLinkedListNode<HandleBlock>()
, m_handleSet(handleSet)
{
}
inline char* HandleBlock::payloadEnd()
{
return reinterpret_cast<char*>(this) + blockSize;
}
inline char* HandleBlock::payload()
{
return reinterpret_cast<char*>(this) + WTF::roundUpToMultipleOf<sizeof(double)>(sizeof(HandleBlock));
}
inline HandleNode* HandleBlock::nodes()
{
return reinterpret_cast_ptr<HandleNode*>(payload());
}
inline HandleNode* HandleBlock::nodeAtIndex(unsigned i)
{
ASSERT(i < nodeCapacity());
return &nodes()[i];
}
inline unsigned HandleBlock::nodeCapacity()
{
return (payloadEnd() - payload()) / sizeof(HandleNode);
}
} // namespace JSC
WTF_ALLOW_UNSAFE_BUFFER_USAGE_END
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