2002-07-09 16:24:59 +04:00
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//
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2005-10-29 20:27:43 +04:00
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// $Id: Locker.h 10 2002-07-09 12:24:59Z ejakowatz $
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2002-07-09 16:24:59 +04:00
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//
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// This is the BLocker interface for OpenBeOS. It has been created to
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// be source and binary compatible with the BeOS version of BLocker.
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//
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#ifndef _OPENBEOS_LOCKER_H
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#define _OPENBEOS_LOCKER_H
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#include <OS.h>
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#include <SupportDefs.h>
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#ifdef USE_OPENBEOS_NAMESPACE
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namespace OpenBeOS {
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#endif
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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 benaphore_style);
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BLocker(const char *name, bool benaphore_style);
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// The following constructor is not documented in the BeBook
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// and is only listed here to ensure binary compatibility.
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// DO NOT USE THIS CONSTRUCTOR!
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BLocker(const char *name, bool benaphore_style, bool);
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virtual ~BLocker();
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bool Lock(void);
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status_t LockWithTimeout(bigtime_t timeout);
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void Unlock(void);
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thread_id LockingThread(void) const;
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bool IsLocked(void) const;
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int32 CountLocks(void) const;
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int32 CountLockRequests(void) const;
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sem_id Sem(void) const;
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private:
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void InitLocker(const char *name, bool benaphore_style);
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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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// Reserved space for future changes to BLocker
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int32 fReservedSpace[4];
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};
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#ifdef USE_OPENBEOS_NAMESPACE
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}
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#endif
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#endif // _OPENBEOS_LOCKER_H
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