OpenShot Audio Library | OpenShotAudio: juce_SpinLock.h Source File

OpenShot Audio Library | OpenShotAudio 0.3.0

Loading...
Searching...
No Matches
juce_SpinLock.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//==============================================================================
41 class JUCE_API SpinLock
42{
43public:
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
78private:
79 //==============================================================================
80 mutable Atomic<int> lock;
81
82 JUCE_DECLARE_NON_COPYABLE (SpinLock)
83};
84
85} // namespace juce
juce::GenericScopedLock
Definition: juce_ScopedLock.h:55
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