You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
2.3 KiB
101 lines
2.3 KiB
/*++
|
|
|
|
Copyright (c) 1992 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
spxtimer.h
|
|
|
|
Abstract:
|
|
|
|
This module contains routines to schedule timer events.
|
|
|
|
Author:
|
|
|
|
Jameel Hyder ([email protected])
|
|
Nikhil Kamkolkar ([email protected])
|
|
|
|
Revision History:
|
|
19 Jun 1992 Initial Version
|
|
|
|
Notes: Tab stop: 4
|
|
--*/
|
|
|
|
#define TIMER_DONT_REQUEUE 0
|
|
#define TIMER_REQUEUE_CUR_VALUE 1
|
|
|
|
typedef ULONG (*TIMER_ROUTINE)(IN PVOID Context, IN BOOLEAN TimerShuttingDown);
|
|
|
|
extern
|
|
NTSTATUS
|
|
SpxTimerInit(
|
|
VOID);
|
|
|
|
extern
|
|
ULONG
|
|
SpxTimerScheduleEvent(
|
|
IN TIMER_ROUTINE Worker, // Routine to invoke when time expires
|
|
IN ULONG DeltaTime, // Schedule after this much time
|
|
IN PVOID pContext); // Context to pass to the routine
|
|
|
|
extern
|
|
VOID
|
|
SpxTimerFlushAndStop(
|
|
VOID);
|
|
|
|
extern
|
|
BOOLEAN
|
|
SpxTimerCancelEvent(
|
|
IN ULONG TimerId,
|
|
IN BOOLEAN ReEnqueue);
|
|
|
|
#define TMR_SIGNATURE *(PULONG)"ATMR"
|
|
#if DBG
|
|
#define VALID_TMR(pTmr) (((pTmr) != NULL) && \
|
|
((pTmr)->tmr_Signature == TMR_SIGNATURE))
|
|
#else
|
|
#define VALID_TMR(pTmr) ((pTmr) != NULL)
|
|
#endif
|
|
typedef struct _TimerList
|
|
{
|
|
#if DBG
|
|
ULONG tmr_Signature;
|
|
#endif
|
|
struct _TimerList * tmr_Next; // Link to next
|
|
struct _TimerList ** tmr_Prev; // Link to prev
|
|
struct _TimerList * tmr_Overflow; // Link to overflow entry in hash table
|
|
ULONG tmr_AbsTime; // Absolute time, for re-enqueue
|
|
ULONG tmr_RelDelta; // Relative to the previous entry
|
|
ULONG tmr_Id; // Unique Id for this event
|
|
BOOLEAN tmr_Cancelled; // Was the timer cancelled?
|
|
TIMER_ROUTINE tmr_Worker; // Real Worker
|
|
PVOID tmr_Context; // Real context
|
|
} TIMERLIST, *PTIMERLIST;
|
|
|
|
|
|
#define SpxGetCurrentTime() (SpxTimerCurrentTime/SPX_TIMER_FACTOR)
|
|
#define SpxGetCurrentTick() SpxTimerCurrentTime
|
|
|
|
// Keep this at a ONE second level.
|
|
#define SPX_TIMER_FACTOR 10 // i.e. 10 ticks per second
|
|
#define SPX_MS_TO_TICKS 100 // Divide ms by this to get ticks
|
|
#define SPX_TIMER_TICK -1000000L // 100ms in 100ns units
|
|
#define SPX_TIMER_WAIT 50 // Time to wait in FlushAndStop in ms
|
|
#define TIMER_HASH_TABLE 32
|
|
|
|
VOID
|
|
spxTimerDpcRoutine(
|
|
IN PKDPC pKDpc,
|
|
IN PVOID pContext,
|
|
IN PVOID SystemArgument1,
|
|
IN PVOID SystemArgument2);
|
|
|
|
VOID
|
|
spxTimerWorker(
|
|
IN PTIMERLIST pList);
|
|
|
|
VOID
|
|
spxTimerEnqueue(
|
|
PTIMERLIST pListNew);
|
|
|
|
|