1/*
2 * Copyright (C) 2012 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef IncrementalSweeper_h
27#define IncrementalSweeper_h
28
29#include "HeapTimer.h"
30#include <wtf/Vector.h>
31
32namespace JSC {
33
34class Heap;
35class MarkedBlock;
36
37class IncrementalSweeper : public HeapTimer {
38 WTF_MAKE_FAST_ALLOCATED;
39public:
40#if USE(CF)
41 JS_EXPORT_PRIVATE IncrementalSweeper(Heap*, CFRunLoopRef);
42#else
43 explicit IncrementalSweeper(Heap*);
44#endif
45
46 void startSweeping();
47
48 JS_EXPORT_PRIVATE virtual void doWork() override;
49 bool sweepNextBlock();
50 void willFinishSweeping();
51
52#if USE(CF) || PLATFORM(EFL) || USE(GLIB) || PLATFORM(QT)
53private:
54 void doSweep(double startTime);
55 void scheduleTimer();
56 void cancelTimer();
57
58 Vector<MarkedBlock*>& m_blocksToSweep;
59#endif
60};
61
62} // namespace JSC
63
64#endif
65