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juce_InterProcessLock.h
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2017 - ROLI Ltd.
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 The code included in this file is provided under the terms of the ISC license
11 http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12 To use, copy, modify, and/or distribute this software for any purpose with or
13 without fee is hereby granted provided that the above copyright notice and
14 this permission notice appear in all copies.
15
16 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18 DISCLAIMED.
19
20 ==============================================================================
21*/
22
23namespace juce
24{
25
26//==============================================================================
34class JUCE_API InterProcessLock
35{
36public:
37 //==============================================================================
41 explicit InterProcessLock (const String& name);
42
47
48 //==============================================================================
57 bool enter (int timeOutMillisecs = -1);
58
60 void exit();
61
62 //==============================================================================
72 {
73 public:
74 //==============================================================================
88 explicit ScopedLockType (InterProcessLock& l) : ipLock (l) { lockWasSuccessful = l.enter(); }
89
97 inline ~ScopedLockType() { ipLock.exit(); }
98
100 bool isLocked() const noexcept { return lockWasSuccessful; }
101
102 private:
103 //==============================================================================
104 InterProcessLock& ipLock;
105 bool lockWasSuccessful;
106
107 JUCE_DECLARE_NON_COPYABLE (ScopedLockType)
108 };
109
110private:
111 //==============================================================================
112 class Pimpl;
113 std::unique_ptr<Pimpl> pimpl;
114
115 CriticalSection lock;
116 String name;
117
118 JUCE_DECLARE_NON_COPYABLE (InterProcessLock)
119};
120
121} // namespace juce
bool enter(int timeOutMillisecs=-1)
InterProcessLock(const String &name)