49 lines
1.0 KiB
C++
49 lines
1.0 KiB
C++
/*
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* Copyright 2001-2010, 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 _LOCKER_H
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#define _LOCKER_H
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#include <OS.h>
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class BLocker {
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public:
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BLocker();
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BLocker(const char* name);
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BLocker(bool benaphoreStyle);
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BLocker(const char* name, bool benaphoreStyle);
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virtual ~BLocker();
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status_t InitCheck() const;
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bool Lock();
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status_t LockWithTimeout(bigtime_t timeout);
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void Unlock();
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thread_id LockingThread() const;
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bool IsLocked() const;
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int32 CountLocks() const;
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int32 CountLockRequests() const;
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sem_id Sem() const;
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private:
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BLocker(const char* name, bool benaphoreStyle,
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bool _ignored);
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void InitLocker(const char* name,
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bool benaphoreStyle);
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bool AcquireLock(bigtime_t timeout, status_t* error);
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int32 fBenaphoreCount;
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sem_id fSemaphoreID;
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thread_id fLockOwner;
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int32 fRecursiveCount;
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int32 _reserved[4];
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};
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#endif // _LOCKER_H
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