OpenShot Audio Library | OpenShotAudio 0.4.0

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juce_SpinLock.h
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2022 - Raw Material Software Limited
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
23 namespace juce
24{
25
26//==============================================================================
41 class JUCE_API SpinLock
42{
43 public:
44 inline SpinLock() = default;
45 inline ~SpinLock() = default;
46
56 void enter() const noexcept;
57
59 inline bool tryEnter() const noexcept
60 {
61 return lock.compareAndSetBool (1, 0);
62 }
63
65 inline void exit() const noexcept
66 {
67 jassert (lock.get() == 1); // Agh! Releasing a lock that isn't currently held!
68 lock = 0;
69 }
70
71 //==============================================================================
73 using ScopedLockType = GenericScopedLock<SpinLock>;
74
76 using ScopedUnlockType = GenericScopedUnlock<SpinLock>;
77
79 using ScopedTryLockType = GenericScopedTryLock<SpinLock>;
80
81 private:
82 //==============================================================================
83 mutable Atomic<int> lock;
84
85 JUCE_DECLARE_NON_COPYABLE (SpinLock)
86};
87
88} // namespace juce
juce::GenericScopedLock
Definition juce_ScopedLock.h:55
juce::GenericScopedTryLock
Definition juce_ScopedLock.h:198
juce::GenericScopedUnlock
Definition juce_ScopedLock.h:126
juce::SpinLock
Definition juce_SpinLock.h:42
juce::SpinLock::exit
void exit() const noexcept
Definition juce_SpinLock.h:65
juce::SpinLock::tryEnter
bool tryEnter() const noexcept
Definition juce_SpinLock.h:59
juce::Atomic
Definition juce_Atomic.h:42