1/* 2 * Copyright (C) 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef HandleBlockInlines_h 27#define HandleBlockInlines_h 28 29#include "BlockAllocator.h" 30#include "HandleBlock.h" 31 32namespace JSC { 33 34inline HandleBlock* HandleBlock::create(DeadBlock* block, HandleSet* handleSet) 35{ 36 Region* region = block->region(); 37 return new (NotNull, block) HandleBlock(region, handleSet); 38} 39 40inline HandleBlock::HandleBlock(Region* region, HandleSet* handleSet) 41 : HeapBlock<HandleBlock>(region) 42 , m_handleSet(handleSet) 43{ 44} 45 46inline char* HandleBlock::payloadEnd() 47{ 48 return reinterpret_cast<char*>(this) + region()->blockSize(); 49} 50 51inline char* HandleBlock::payload() 52{ 53 return reinterpret_cast<char*>(this) + WTF::roundUpToMultipleOf<sizeof(double)>(sizeof(HandleBlock)); 54} 55 56inline HandleNode* HandleBlock::nodes() 57{ 58 return reinterpret_cast<HandleNode*>(payload()); 59} 60 61inline HandleNode* HandleBlock::nodeAtIndex(unsigned i) 62{ 63 ASSERT(i < nodeCapacity()); 64 return &nodes()[i]; 65} 66 67inline unsigned HandleBlock::nodeCapacity() 68{ 69 return (payloadEnd() - payload()) / sizeof(HandleNode); 70} 71 72} // namespace JSC 73 74#endif // HandleBlockInlines_h 75