1/*
2 * Copyright (C) 2014-2018 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#pragma once
27
28#if PLATFORM(COCOA)
29
30#include <mach/mach_port.h>
31
32namespace WTF {
33
34class MachSendRight {
35public:
36 WTF_EXPORT_PRIVATE static MachSendRight adopt(mach_port_t);
37 WTF_EXPORT_PRIVATE static MachSendRight create(mach_port_t);
38
39 MachSendRight() = default;
40 WTF_EXPORT_PRIVATE MachSendRight(MachSendRight&&);
41 WTF_EXPORT_PRIVATE ~MachSendRight();
42
43 WTF_EXPORT_PRIVATE MachSendRight& operator=(MachSendRight&&);
44
45 explicit operator bool() const { return m_port != MACH_PORT_NULL; }
46
47 mach_port_t sendRight() const { return m_port; }
48
49 WTF_EXPORT_PRIVATE MachSendRight copySendRight() const;
50 WTF_EXPORT_PRIVATE mach_port_t leakSendRight() WARN_UNUSED_RETURN;
51
52private:
53 explicit MachSendRight(mach_port_t);
54
55 mach_port_t m_port { MACH_PORT_NULL };
56};
57
58WTF_EXPORT_PRIVATE void deallocateSendRightSafely(mach_port_t);
59
60}
61
62using WTF::MachSendRight;
63using WTF::deallocateSendRightSafely;
64
65#endif
66