1/*
2 * Copyright (C) 2016 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#pragma once
27
28#include <wtf/Vector.h>
29
30namespace JSC {
31
32class HeapSnapshot;
33class HeapSnapshotBuilder;
34class VM;
35
36class HeapProfiler {
37 WTF_MAKE_FAST_ALLOCATED;
38public:
39 HeapProfiler(VM&);
40 ~HeapProfiler();
41
42 VM& vm() const { return m_vm; }
43
44 HeapSnapshot* mostRecentSnapshot();
45 void appendSnapshot(std::unique_ptr<HeapSnapshot>);
46 void clearSnapshots();
47
48 HeapSnapshotBuilder* activeSnapshotBuilder() const { return m_activeBuilder; }
49 void setActiveSnapshotBuilder(HeapSnapshotBuilder*);
50
51private:
52 VM& m_vm;
53 Vector<std::unique_ptr<HeapSnapshot>> m_snapshots;
54 HeapSnapshotBuilder* m_activeBuilder { nullptr };
55};
56
57} // namespace JSC
58