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juce_ReadWriteLock.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) 2017 - ROLI Ltd.
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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
ReadWriteLock
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{
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public
:
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//==============================================================================
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ReadWriteLock
()
noexcept
;
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~ReadWriteLock
()
noexcept
;
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//==============================================================================
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void
enterRead()
const
noexcept
;
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bool
tryEnterRead()
const
noexcept
;
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void
exitRead()
const
noexcept
;
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//==============================================================================
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void
enterWrite()
const
noexcept
;
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bool
tryEnterWrite()
const
noexcept
;
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void
exitWrite()
const
noexcept
;
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private
:
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//==============================================================================
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SpinLock
accessLock;
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WaitableEvent
readWaitEvent, writeWaitEvent;
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mutable
int
numWaitingWriters = 0, numWriters = 0;
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mutable
Thread::ThreadID
writerThreadId = {};
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struct
ThreadRecursionCount
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{
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Thread::ThreadID
threadID;
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int
count;
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};
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mutable
Array <ThreadRecursionCount>
readerThreads;
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bool
tryEnterWriteInternal (
Thread::ThreadID
)
const
noexcept
;
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JUCE_DECLARE_NON_COPYABLE (
ReadWriteLock
)
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};
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}
// namespace juce
juce::Array
Definition
juce_Array.h:56
juce::ReadWriteLock
Definition
juce_ReadWriteLock.h:48
juce::SpinLock
Definition
juce_SpinLock.h:42
juce::Thread::ThreadID
void * ThreadID
Definition
juce_Thread.h:304
juce::WaitableEvent
Definition
juce_WaitableEvent.h:36
JuceLibraryCode
modules
juce_core
threads
juce_ReadWriteLock.h
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