mirror of http://192.168.1.51:8099/lmh188/twain3
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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RxTimer.h
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Abstract:
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This module defines the prototypes and structures for the timer on the rdbss architecture.
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What is provided is a 55ms timer...that is, if you register a routine then you get a call
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every 55ms. On NT, you're at DPC level.
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Also contained here are the routines for posting to a thread from DPC level.
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Author:
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--*/
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#ifndef _RXTIMER_H_
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#define _RXTIMER_H_
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//
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// The RX_WORK_ITEM encapsulates the context for posting to a worker thread as well as
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// a timer routine to be triggered after a specific interval.
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//
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typedef struct _RX_WORK_ITEM_ {
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RX_WORK_QUEUE_ITEM WorkQueueItem;
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ULONG LastTick;
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ULONG Options;
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} RX_WORK_ITEM, *PRX_WORK_ITEM;
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extern NTSTATUS
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NTAPI
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RxPostOneShotTimerRequest(
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IN PRDBSS_DEVICE_OBJECT pDeviceObject,
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IN PRX_WORK_ITEM pWorkItem,
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IN PRX_WORKERTHREAD_ROUTINE Routine,
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IN PVOID pContext,
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IN LARGE_INTEGER TimeInterval);
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extern NTSTATUS
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NTAPI
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RxPostRecurrentTimerRequest(
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IN PRDBSS_DEVICE_OBJECT pDeviceObject,
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IN PRX_WORKERTHREAD_ROUTINE Routine,
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IN PVOID pContext,
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IN LARGE_INTEGER TimeInterval);
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extern NTSTATUS
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NTAPI
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RxCancelTimerRequest(
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IN PRDBSS_DEVICE_OBJECT pDeviceObject,
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IN PRX_WORKERTHREAD_ROUTINE Routine,
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IN PVOID pContext
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);
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//
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// Routines for initializing and tearing down the timer service in RDBSS
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//
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extern NTSTATUS
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NTAPI
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RxInitializeRxTimer();
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extern VOID
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NTAPI
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RxTearDownRxTimer(void);
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#endif // _RXTIMER_STUFF_DEFINED_
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