98 lines
1.5 KiB
C
98 lines
1.5 KiB
C
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/*
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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intrlckd.c
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Abstract:
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This module contains the routines that should have been in the EX package.
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This manipulates inter-locked operations on flags and such.
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Author:
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Jameel Hyder (microsoft!jameelh)
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Revision History:
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5 Sep 1992 Initial Version
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Notes: Tab stop: 4
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--*/
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#define FILENUM FILE_INTRLCKD
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#include <afp.h>
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/*** AfpInterlockedSetDword
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*
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* Set specified bits using the spin-lock to provide an interlocked operation.
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*/
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VOID FASTCALL
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AfpInterlockedSetDword(
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IN PDWORD pSrc,
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IN DWORD Mask,
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IN PAFP_SPIN_LOCK pSpinLock
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)
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{
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KIRQL OldIrql;
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ACQUIRE_SPIN_LOCK(pSpinLock, &OldIrql);
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*pSrc |= Mask;
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RELEASE_SPIN_LOCK(pSpinLock, OldIrql);
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}
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/*** AfpInterlockedClearDword
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*
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* Clear specified bits using the spin-lock to provide an
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* interlocked operation.
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*/
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VOID FASTCALL
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AfpInterlockedClearDword(
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IN PDWORD pSrc,
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IN DWORD Mask,
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IN PAFP_SPIN_LOCK pSpinLock
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)
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{
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KIRQL OldIrql;
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ACQUIRE_SPIN_LOCK(pSpinLock, &OldIrql);
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*pSrc &= ~Mask;
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RELEASE_SPIN_LOCK(pSpinLock, OldIrql);
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}
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/*** AfpInterlockedSetNClearDword
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*
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* Set and Clear specified bits using the spin-lock to provide an
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* interlocked operation.
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*/
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VOID FASTCALL
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AfpInterlockedSetNClearDword(
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IN PDWORD pSrc,
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IN DWORD SetMask,
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IN DWORD ClrMask,
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IN PAFP_SPIN_LOCK pSpinLock
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)
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{
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KIRQL OldIrql;
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ACQUIRE_SPIN_LOCK(pSpinLock, &OldIrql);
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*pSrc |= SetMask;
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*pSrc &= ~ClrMask;
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RELEASE_SPIN_LOCK(pSpinLock, OldIrql);
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}
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