2
* Copyright (C) 2012 Apple Inc. All rights reserved.
4
* Redistribution and use in source and binary forms, with or without
5
* modification, are permitted provided that the following conditions
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.
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.
29
#include "CopiedSpace.h"
33
class GCThreadSharedData;
38
CopyVisitor(GCThreadSharedData&);
40
void copyFromShared();
45
// Low-level API for copying, appropriate for cases where the object's heap references
46
// are discontiguous or if the object occurs frequently enough that you need to focus on
47
// performance. Use this with care as it is easy to shoot yourself in the foot.
48
bool checkIfShouldCopy(void*);
49
void* allocateNewSpace(size_t);
50
void didCopy(void*, size_t);
53
void* allocateNewSpaceSlow(size_t);
54
void visitCell(JSCell*);
56
GCThreadSharedData& m_shared;
57
CopiedAllocator m_copiedAllocator;