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juce_SpinLock.h
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2022 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace
juce
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{
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//==============================================================================
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class
JUCE_API SpinLock
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{
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public
:
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inline
SpinLock() =
default
;
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inline
~SpinLock() =
default
;
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void
enter
()
const
noexcept
;
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inline
bool
tryEnter
() const noexcept
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{
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return
lock.compareAndSetBool (1, 0);
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}
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inline
void
exit
() const noexcept
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{
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jassert (lock.get() == 1);
// Agh! Releasing a lock that isn't currently held!
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lock = 0;
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}
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//==============================================================================
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using
ScopedLockType
=
GenericScopedLock<SpinLock>
;
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using
ScopedUnlockType
=
GenericScopedUnlock<SpinLock>
;
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using
ScopedTryLockType
=
GenericScopedTryLock<SpinLock>
;
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private
:
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//==============================================================================
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mutable
Atomic<int>
lock;
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JUCE_DECLARE_NON_COPYABLE (SpinLock)
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};
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}
// 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::exit
void exit() const noexcept
Definition
juce_SpinLock.h:65
juce::SpinLock::enter
void enter() const noexcept
Definition
juce_Thread.cpp:334
juce::SpinLock::ScopedUnlockType
GenericScopedUnlock< SpinLock > ScopedUnlockType
Definition
juce_SpinLock.h:76
juce::SpinLock::tryEnter
bool tryEnter() const noexcept
Definition
juce_SpinLock.h:59
juce::SpinLock::ScopedTryLockType
GenericScopedTryLock< SpinLock > ScopedTryLockType
Definition
juce_SpinLock.h:79
juce::SpinLock::ScopedLockType
GenericScopedLock< SpinLock > ScopedLockType
Definition
juce_SpinLock.h:73
juce::Atomic
Definition
juce_Atomic.h:42
JuceLibraryCode
modules
juce_core
threads
juce_SpinLock.h
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