106 lines
1.3 KiB
C++
106 lines
1.3 KiB
C++
/*
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* Copyright 2001-2009, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _AUTOLOCK_H
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#define _AUTOLOCK_H
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#include <Locker.h>
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#include <Looper.h>
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class BAutolock {
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public:
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inline BAutolock(BLooper* looper);
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inline BAutolock(BLocker* locker);
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inline BAutolock(BLocker& locker);
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inline ~BAutolock();
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inline bool IsLocked();
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inline bool Lock();
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inline void Unlock();
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private:
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BLocker* fLocker;
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BLooper* fLooper;
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bool fIsLocked;
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};
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inline
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BAutolock::BAutolock(BLooper *looper)
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:
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fLocker(NULL),
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fLooper(looper),
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fIsLocked(looper->Lock())
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{
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}
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inline
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BAutolock::BAutolock(BLocker *locker)
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:
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fLocker(locker),
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fLooper(NULL),
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fIsLocked(locker->Lock())
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{
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}
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inline
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BAutolock::BAutolock(BLocker &locker)
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:
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fLocker(&locker),
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fLooper(NULL),
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fIsLocked(locker.Lock())
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{
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}
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inline
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BAutolock::~BAutolock()
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{
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Unlock();
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}
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inline bool
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BAutolock::IsLocked()
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{
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return fIsLocked;
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}
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inline bool
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BAutolock::Lock()
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{
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if (fIsLocked)
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return true;
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if (fLooper != NULL)
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fIsLocked = fLooper->Lock();
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else
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fIsLocked = fLocker->Lock();
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return fIsLocked;
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}
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inline void
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BAutolock::Unlock()
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{
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if (!fIsLocked)
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return;
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fIsLocked = false;
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if (fLooper != NULL)
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fLooper->Unlock();
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else
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fLocker->Unlock();
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}
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#endif // _AUTOLOCK_H
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