41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2002 Sanchez Computer Associates, Inc. *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#ifndef MUTEX_H
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#define MUTEX_H
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#include "mutexsp.h"
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#if defined(UNIX)
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#define MUTEX_HARD_SPIN_COUNT 128
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#elif defined(VMS)
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#define MUTEX_HARD_SPIN_COUNT 1024 /* VMS mutex does not have a sleep spin loop, so compensate with larger hard spin count */
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#else
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#error Unsupported Platform
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#endif
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#define MUTEX_SLEEP_SPIN_COUNT 128
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#define MUTEX_SHORT_WAIT_MS 2 /* ms. Keep this a power of 2 */
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#define MUTEX_SHORT_WAIT_US (MUTEX_SHORT_WAIT_MS << 10) /* micro sec */
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#define MUTEX_SPIN_SLEEP_MASK (MUTEX_SHORT_WAIT_US - 1)
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#define MUTEX_WRITE_HARD_SPIN_COUNT MUTEX_HARD_SPIN_COUNT
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#define MUTEX_WRITE_SLEEP_SPIN_COUNT MUTEX_SLEEP_SPIN_COUNT
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#define MUTEX_WRITE_SPIN_SLEEP_MASK MUTEX_SPIN_SLEEP_MASK
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#define MUTEX_MAX_OPTIMISTIC_ATTEMPTS 1024
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#define MUTEX_MAX_WAIT_FOR_PROGRESS_CNTR 3
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#define MUTEX_MAX_WRITE_LOCK_ATTEMPTS 8
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#endif /* MUTEX_H */
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