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Set system time and update boot time and relative timers.

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svn path=/trunk/; revision=11850
This commit is contained in:
Eric Kohl 2004-11-28 12:59:33 +00:00
parent e8e894de92
commit d899ea5ca7
3 changed files with 65 additions and 9 deletions
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15
reactos/ntoskrnl/ex/time.c
View file

@ -1,4 +1,4 @@
/* $Id: time.c,v 1.24 2004/11/06 16:04:58 ekohl Exp $
/* $Id: time.c,v 1.25 2004/11/28 12:59:33 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -89,7 +89,7 @@ NtSetSystemTime(IN PLARGE_INTEGER UnsafeNewSystemTime,
sizeof(NewSystemTime));
if (!NT_SUCCESS(Status))
{
return(Status);
return Status;
}
if (UnsafeOldSystemTime != NULL)
@ -102,10 +102,8 @@ NtSetSystemTime(IN PLARGE_INTEGER UnsafeNewSystemTime,
&TimeFields);
HalSetRealTimeClock(&TimeFields);
/* FIXME: set system time */
#if 0
KeSetSystemTime();
#endif
/* Set system time */
KiSetSystemTime(&NewSystemTime);
if (UnsafeOldSystemTime != NULL)
{
@ -113,10 +111,11 @@ NtSetSystemTime(IN PLARGE_INTEGER UnsafeNewSystemTime,
sizeof(OldSystemTime));
if (!NT_SUCCESS(Status))
{
return(Status);
return Status;
}
}
return(STATUS_SUCCESS);
return STATUS_SUCCESS;
}

3
reactos/ntoskrnl/include/internal/ke.h
View file

@ -184,6 +184,9 @@ VOID
STDCALL
KeFlushCurrentTb(VOID);
VOID
KiSetSystemTime(PLARGE_INTEGER NewSystemTime);
#endif /* not __ASM__ */
#define MAXIMUM_PROCESSORS 32

56
reactos/ntoskrnl/ke/timer.c
View file

@ -1,4 +1,4 @@
/* $Id: timer.c,v 1.91 2004/11/27 16:57:03 hbirr Exp $
/* $Id: timer.c,v 1.92 2004/11/28 12:59:00 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -821,4 +821,58 @@ KeUpdateSystemTime(
KeInsertQueueDpc(&ExpireTimerDpc, (PVOID)TrapFrame->Eip, 0);
}
VOID
KiSetSystemTime(PLARGE_INTEGER NewSystemTime)
{
LARGE_INTEGER OldSystemTime;
LARGE_INTEGER DeltaTime;
KIRQL OldIrql;
PLIST_ENTRY current_entry = NULL;
PKTIMER current = NULL;
ASSERT(KeGetCurrentIrql() <= DISPATCH_LEVEL);
OldIrql = KeAcquireDispatcherDatabaseLock();
do
{
OldSystemTime.u.HighPart = SharedUserData->SystemTime.High1Time;
OldSystemTime.u.LowPart = SharedUserData->SystemTime.LowPart;
}
while (OldSystemTime.u.HighPart != SharedUserData->SystemTime.High2Time);
/* Set the new system time */
SharedUserData->SystemTime.LowPart = NewSystemTime->u.LowPart;
SharedUserData->SystemTime.High1Time = NewSystemTime->u.HighPart;
SharedUserData->SystemTime.High2Time = NewSystemTime->u.HighPart;
/* Calculate the difference between the new and the old time */
DeltaTime.QuadPart = NewSystemTime->QuadPart - OldSystemTime.QuadPart;
/* Update system boot time */
SystemBootTime.QuadPart += DeltaTime.QuadPart;
/* Update all relative timers */
current_entry = RelativeTimerListHead.Flink;
ASSERT(current_entry);
while (current_entry != &RelativeTimerListHead)
{
current = CONTAINING_RECORD(current_entry, KTIMER, TimerListEntry);
ASSERT(current);
ASSERT(current_entry != &RelativeTimerListHead);
ASSERT(current_entry->Flink != current_entry);
current->DueTime.QuadPart += DeltaTime.QuadPart;
current_entry = current_entry->Flink;
}
KeReleaseDispatcherDatabaseLock(OldIrql);
/*
* NOTE: Expired timers will be processed at the next clock tick!
*/
}
/* EOF */