95 lines
1.5 KiB
C
95 lines
1.5 KiB
C
//
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// VERY USEFUL TIMER ROUTINES
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//
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BOOL
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RtCreateTimer(IN PHANDLE TimerHandlep)
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{
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OBJECT_ATTRIBUTES ObjA;
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NTSTATUS Status;
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InitializeObjectAttributes(&ObjA, NULL, 0, NULL, NULL);
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Status = NtCreateTimer(TimerHandlep, TIMER_ALL_ACCESS, &ObjA);
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if (!NT_SUCCESS(Status)) {
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SS_PRINT(("Failed to create timer: %X\n", Status));
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return TRUE;
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}
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return FALSE;
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}
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BOOL
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RtDestroyTimer(IN HANDLE TimerHandle)
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{
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NTSTATUS Status;
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Status = NtClose(TimerHandle);
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if (!NT_SUCCESS(Status)) {
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SS_PRINT(("Failed to create timer: %X\n", Status));
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return TRUE;
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}
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return FALSE;
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}
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BOOL
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RtSetTimer(
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IN HANDLE TimerHandle,
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IN ULONG MillisecondsToExpire,
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IN PTIMER_APC_ROUTINE TimerRoutine,
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IN PVOID Context
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)
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{
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LARGE_INTEGER TimerDueTime;
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NTSTATUS NtStatus;
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//
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// Figure out the timeout.
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//
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TimerDueTime.QuadPart = Int32x32To64( MillisecondsToExpire, -10000 );
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//
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// Set the timer to go off when it expires.
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//
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NtStatus = NtSetTimer(TimerHandle,
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&TimerDueTime,
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TimerRoutine,
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Context,
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NULL);
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if (!NT_SUCCESS(NtStatus)) {
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SS_PRINT(("RtSetTimer: Failed to set timer: 0x%x\n", NtStatus));
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SS_ASSERT(FALSE);
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return TRUE;
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}
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return FALSE;
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}
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BOOL
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RtCancelTimer(
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IN HANDLE TimerHandle;
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)
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{
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NTSTATUS NtStatus;
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NtStatus = NtCancelTimer(TimerHandle, NULL);
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if (!NT_SUCCESS(NtStatus)) {
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SS_PRINT(("RtCancelTimer: Failed to cancel timer: 0x%x\n", NtStatus));
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return TRUE;
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}
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return FALSE;
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}
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