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92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-9 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#ifndef __JUCE_INTERPROCESSLOCK_JUCEHEADER__
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#define __JUCE_INTERPROCESSLOCK_JUCEHEADER__
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#include "../text/juce_String.h"
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//==============================================================================
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/**
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Acts as a critical section which processes can use to block each other.
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@see CriticalSection
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*/
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class JUCE_API InterProcessLock
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{
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public:
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//==============================================================================
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/** Creates a lock object.
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@param name a name that processes will use to identify this lock object
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*/
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InterProcessLock (const String& name);
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/** Destructor.
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This will also release the lock if it's currently held by this process.
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*/
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~InterProcessLock();
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//==============================================================================
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/** Attempts to lock the critical section.
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@param timeOutMillisecs how many milliseconds to wait if the lock
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is already held by another process - a value of
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0 will return immediately, negative values will wait
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forever
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@returns true if the lock could be gained within the timeout period, or
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false if the timeout expired.
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*/
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bool enter (int timeOutMillisecs = -1);
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/** Releases the lock if it's currently held by this process.
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*/
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void exit();
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//==============================================================================
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juce_UseDebuggingNewOperator
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private:
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//==============================================================================
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#if JUCE_WINDOWS
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void* internal;
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#elif JUCE_64BIT
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long long internal;
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#else
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int internal;
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#endif
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String name;
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int reentrancyLevel;
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InterProcessLock (const InterProcessLock&);
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const InterProcessLock& operator= (const InterProcessLock&);
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};
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#endif // __JUCE_INTERPROCESSLOCK_JUCEHEADER__
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