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juce_ScopedReadLock.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
ScopedReadLock
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{
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public
:
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//==============================================================================
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inline
explicit
ScopedReadLock
(
const
ReadWriteLock
& lock) noexcept : lock_ (lock) { lock.enterRead(); }
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inline
~ScopedReadLock
() noexcept { lock_.exitRead(); }
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private
:
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//==============================================================================
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const
ReadWriteLock
& lock_;
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JUCE_DECLARE_NON_COPYABLE (
ScopedReadLock
)
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};
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//==============================================================================
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class
JUCE_API
ScopedTryReadLock
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{
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public
:
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//==============================================================================
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explicit
ScopedTryReadLock
(
ReadWriteLock
& lockIn)
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:
ScopedTryReadLock
(lockIn, true) {}
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ScopedTryReadLock
(
ReadWriteLock
& lockIn,
bool
acquireLockOnInitialisation) noexcept
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: lock (lockIn), lockWasSuccessful (acquireLockOnInitialisation && lock.tryEnterRead()) {}
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~ScopedTryReadLock
() noexcept {
if
(lockWasSuccessful) lock.exitRead(); }
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bool
isLocked
() const noexcept {
return
lockWasSuccessful; }
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bool
retryLock
() noexcept {
return
lockWasSuccessful = lock.tryEnterRead(); }
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private
:
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//==============================================================================
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ReadWriteLock
& lock;
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bool
lockWasSuccessful;
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JUCE_DECLARE_NON_COPYABLE (
ScopedTryReadLock
)
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};
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}
// namespace juce
juce::ReadWriteLock
Definition
juce_ReadWriteLock.h:48
juce::ScopedReadLock
Definition
juce_ScopedReadLock.h:52
juce::ScopedReadLock::~ScopedReadLock
~ScopedReadLock() noexcept
Definition
juce_ScopedReadLock.h:74
juce::ScopedReadLock::ScopedReadLock
ScopedReadLock(const ReadWriteLock &lock) noexcept
Definition
juce_ScopedReadLock.h:65
juce::ScopedTryReadLock
Definition
juce_ScopedReadLock.h:120
juce::ScopedTryReadLock::~ScopedTryReadLock
~ScopedTryReadLock() noexcept
Definition
juce_ScopedReadLock.h:154
juce::ScopedTryReadLock::ScopedTryReadLock
ScopedTryReadLock(ReadWriteLock &lockIn, bool acquireLockOnInitialisation) noexcept
Definition
juce_ScopedReadLock.h:144
juce::ScopedTryReadLock::ScopedTryReadLock
ScopedTryReadLock(ReadWriteLock &lockIn)
Definition
juce_ScopedReadLock.h:131
juce::ScopedTryReadLock::isLocked
bool isLocked() const noexcept
Definition
juce_ScopedReadLock.h:157
juce::ScopedTryReadLock::retryLock
bool retryLock() noexcept
Definition
juce_ScopedReadLock.h:160
JuceLibraryCode
modules
juce_core
threads
juce_ScopedReadLock.h
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