89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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bowtimer.h
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Abstract:
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This module declares definitions dealing with bowser timers.
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Author:
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Larry Osterman (larryo) 6-May-1991
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Revision History:
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6-May-1991 larryo
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Created
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--*/
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#ifndef _BOWTIMER_
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#define _BOWTIMER_
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struct _TRANSPORT;
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typedef
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NTSTATUS
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(*PBOWSER_TIMER_ROUTINE)(
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IN struct _TRANSPORT *Transport
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);
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// BOWSER_TIMER flags:
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// Canceled is TRUE when a timer is cancelled but is already in
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// the dpc queue.
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//
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// AlreadySet is used to ensure we stop the timer before restarting it.
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//
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// Reset is set to TRUE when a timer has been stopped and restarted while
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// in the dpc queue. The Lock is used to ensure ordered access.
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// Note: a timer can be stopped and reset multiple times before it gets
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// to the front of the dpc queue.
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//
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typedef struct _BOWSER_TIMER {
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KDPC Dpc;
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KTIMER Timer;
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KSPIN_LOCK Lock;
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KEVENT TimerInactiveEvent;
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PBOWSER_TIMER_ROUTINE TimerRoutine;
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PVOID TimerContext;
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LARGE_INTEGER Timeout;
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WORK_QUEUE_ITEM WorkItem;
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BOOLEAN AlreadySet;
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BOOLEAN Initialized;
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BOOLEAN Canceled;
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BOOLEAN SetAgain;
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} BOWSER_TIMER, *PBOWSER_TIMER;
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VOID
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BowserInitializeTimer(
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IN PBOWSER_TIMER Timer
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);
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VOID
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BowserStopTimer (
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IN PBOWSER_TIMER Timer
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);
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VOID
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BowserUninitializeTimer(
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IN PBOWSER_TIMER Timer
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);
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BOOLEAN
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BowserStartTimer (
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IN PBOWSER_TIMER Timer,
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IN ULONG MillisecondsToExpireTimer,
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IN PBOWSER_TIMER_ROUTINE TimerExpirationRoutine,
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IN PVOID Context
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);
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#endif // _BOWTIMER_
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