Update timers support
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331c5bfeda
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30a2cb9849
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@ -32,6 +32,10 @@ XTFASTCALL
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KRUNLEVEL
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KeGetCurrentRunLevel(VOID);
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XTAPI
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BOOLEAN
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KeGetTimerState(IN PKTIMER Timer);
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XTAPI
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VOID
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KeInitializeApc(IN PKAPC Apc,
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@ -102,6 +106,13 @@ VOID
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KeSetTargetProcessorDpc(IN PKDPC Dpc,
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IN CCHAR Number);
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XTAPI
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VOID
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KeSetTimer(IN PKTIMER Timer,
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IN LARGE_INTEGER DueTime,
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IN LONG Period,
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IN PKDPC Dpc);
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XTAPI
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VOID
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KeSignalCallDpcDone(IN PVOID SystemArgument);
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@ -330,6 +330,7 @@ typedef struct _KTIMER
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DISPATCHER_HEADER Header;
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ULARGE_INTEGER DueTime;
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LIST_ENTRY TimerListEntry;
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PKDPC Dpc;
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LONG Period;
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} KTIMER, *PKTIMER;
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@ -63,6 +63,10 @@ KePanicEx(IN ULONG Code,
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IN ULONG_PTR Parameter3,
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IN ULONG_PTR Parameter4);
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XTAPI
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ULONGLONG
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KeQueryTimer(IN PKTIMER Timer);
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XTAPI
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LONG
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KeSetEvent(IN PKEVENT Event,
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@ -24,13 +24,13 @@ BOOLEAN
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KeCancelTimer(IN PKTIMER Timer)
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{
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BOOLEAN Result;
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KRUNLEVEL OldRunLevel;
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KRUNLEVEL RunLevel;
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/* Set default result value */
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Result = FALSE;
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/* Raise run level and acquire dispatcher lock */
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OldRunLevel = KeRaiseRunLevel(SYNC_LEVEL);
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RunLevel = KeRaiseRunLevel(SYNC_LEVEL);
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KeAcquireQueuedSpinLock(DispatcherLock);
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/* Check timer status */
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@ -41,9 +41,9 @@ KeCancelTimer(IN PKTIMER Timer)
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Result = TRUE;
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}
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/* Release dispatcher lock and processes the deferred ready list */
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/* Release dispatcher lock and process the deferred ready list */
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KeReleaseQueuedSpinLock(DispatcherLock);
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KepExitDispatcher(OldRunLevel);
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KepExitDispatcher(RunLevel);
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/* Return result */
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return Result;
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@ -67,6 +67,24 @@ KeClearTimer(IN PKTIMER Timer)
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Timer->Header.SignalState = 0;
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}
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/**
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* Reads the current signal state of the given timer.
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*
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* @param Timer
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* Supplies a pointer to a timer object.
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*
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* @return This routine returns TRUE if the timer is set, or FALSE otherwise.
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*
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* @since XT 1.0
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*/
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XTAPI
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BOOLEAN
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KeGetTimerState(IN PKTIMER Timer)
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{
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/* Return timer state */
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return (BOOLEAN)Timer->Header.SignalState;
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}
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/**
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* Initializes an extended kernel timer.
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*
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@ -99,6 +117,74 @@ KeInitializeTimer(OUT PKTIMER Timer,
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RtlInitializeListHead(&Timer->TimerListEntry);
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}
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/**
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* Queries the timer's interrupt due time.
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*
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* @param Timer
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* Supplies a pointer to a timer object.
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*
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* @return This routine returns the time remaining on the timer, or 0 if the timer is not set.
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*
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* @since XT 1.0
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*/
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XTAPI
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ULONGLONG
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KeQueryTimer(IN PKTIMER Timer)
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{
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KRUNLEVEL RunLevel;
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ULONGLONG DueTime;
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/* Set initial due time */
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DueTime = 0;
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/* Raise run level and acquire dispatcher lock */
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RunLevel = KeRaiseRunLevel(SYNC_LEVEL);
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KeAcquireQueuedSpinLock(DispatcherLock);
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/* Check timer status */
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if(Timer->Header.Inserted)
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{
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/* Get timer's due time */
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DueTime = Timer->DueTime.QuadPart;
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}
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/* Release dispatcher lock and process the deferred ready list */
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KeReleaseQueuedSpinLock(DispatcherLock);
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KepExitDispatcher(RunLevel);
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/* Return timer's due time */
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return DueTime;
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}
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/**
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* Sets the supplied timer to expire at the specified time.
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*
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* @param Timer
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* Supplies a pointer to a timer object.
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*
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* @param DueTime
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* Supplies the time at which the timer should expire (both absolute and relative times are supported).
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*
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* @param Period
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* Supplies the timer period.
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*
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* @param Dpc
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* Supplies a pointer to a Deferred Procedure Call (DPC) object.
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*
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* @return This routine does not return any value.
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*
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* @since XT 1.0
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*/
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XTAPI
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VOID
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KeSetTimer(IN PKTIMER Timer,
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IN LARGE_INTEGER DueTime,
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IN LONG Period,
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IN PKDPC Dpc)
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{
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UNIMPLEMENTED;
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}
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/**
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* Removes a specified timer from the timer list.
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*
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@ -15,6 +15,7 @@
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@ fastcall KeAcquireSpinLock(ptr)
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@ stdcall KeCancelTimer(ptr)
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@ fastcall KeGetCurrentRunLevel()
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@ stdcall KeGetTimerState(ptr)
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@ stdcall KeInitializeApc(ptr ptr long ptr ptr ptr long ptr)
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@ stdcall KeInitializeDpc(ptr ptr ptr)
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@ stdcall KeInitializeSemaphore(ptr long long)
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@ -28,6 +29,7 @@
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@ fastcall KeReleaseQueuedSpinLock(long)
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@ fastcall KeReleaseSpinLock(ptr)
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@ stdcall KeSetTargetProcessorDpc(ptr long)
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@ stdcall KeSetTimer(ptr long long long ptr)
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@ stdcall KeSignalCallDpcDone(ptr)
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@ stdcall KeSignalCallDpcSynchronize(ptr)
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@ stdcall RtlClearAllBits(ptr)
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