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62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: kernel/excutive/time.c
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* PURPOSE: Time
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* PROGRAMMER: David Welch (welch@mcmail.com)
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* UPDATE HISTORY:
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* Created 22/05/98
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*/
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/* INCLUDES *****************************************************************/
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#include <ddk/ntddk.h>
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#include <internal/debug.h>
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#define TICKSPERMINUTE 600000000
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/* GLOBALS ******************************************************************/
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static LONG lTimeZoneBias = 0; /* bias[minutes] = UTC - local time */
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/* FUNCTIONS ****************************************************************/
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NTSTATUS STDCALL NtSetSystemTime(IN PLARGE_INTEGER SystemTime,
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IN PLARGE_INTEGER NewSystemTime OPTIONAL)
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{
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return(ZwSetSystemTime(SystemTime,NewSystemTime));
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}
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NTSTATUS STDCALL ZwSetSystemTime(IN PLARGE_INTEGER SystemTime,
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IN PLARGE_INTEGER NewSystemTime OPTIONAL)
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{
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UNIMPLEMENTED;
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}
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NTSTATUS STDCALL NtQuerySystemTime (OUT TIME *CurrentTime)
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{
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return(ZwQuerySystemTime(CurrentTime));
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}
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NTSTATUS STDCALL ZwQuerySystemTime (OUT TIME *CurrentTime)
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{
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KeQuerySystemTime((PLARGE_INTEGER)CurrentTime);
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return STATUS_SUCCESS;
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// UNIMPLEMENTED;
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}
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VOID ExLocalTimeToSystemTime(PLARGE_INTEGER LocalTime,
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PLARGE_INTEGER SystemTime)
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{
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SystemTime->QuadPart = LocalTime->QuadPart +
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lTimeZoneBias * TICKSPERMINUTE;
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}
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VOID ExSystemTimeToLocalTime(PLARGE_INTEGER SystemTime,
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PLARGE_INTEGER LocalTime)
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{
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LocalTime->QuadPart = SystemTime->QuadPart -
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lTimeZoneBias * TICKSPERMINUTE;
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}
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