1/*
2 * Copyright (C) 2014 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef TestingPlatformSupport_h
32#define TestingPlatformSupport_h
33
34#include "public/platform/Platform.h"
35#include "public/platform/WebDiscardableMemory.h"
36#include "wtf/Vector.h"
37
38namespace blink {
39
40class TestingDiscardableMemory : public WebDiscardableMemory {
41public:
42    explicit TestingDiscardableMemory(size_t);
43    virtual ~TestingDiscardableMemory();
44
45    // WebDiscardableMemory:
46    virtual bool lock() OVERRIDE;
47    virtual void* data() OVERRIDE;
48    virtual void unlock() OVERRIDE;
49
50private:
51    Vector<char> m_data;
52    bool m_isLocked;
53};
54
55class TestingPlatformSupport : public Platform {
56public:
57    struct Config {
58        Config() : hasDiscardableMemorySupport(false) { }
59
60        bool hasDiscardableMemorySupport;
61    };
62
63    explicit TestingPlatformSupport(const Config&);
64
65    virtual ~TestingPlatformSupport();
66
67    // Platform:
68    virtual WebDiscardableMemory* allocateAndLockDiscardableMemory(size_t bytes) OVERRIDE;
69    virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t length) OVERRIDE;
70    virtual const unsigned char* getTraceCategoryEnabledFlag(const char* categoryName) OVERRIDE;
71
72private:
73    const Config m_config;
74    Platform* const m_oldPlatform;
75};
76
77} // namespace blink
78
79#endif // TestingPlatformSupport_h
80