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/* $Id: RTTimeSet-os2.cpp $ */
/** @file
* IPRT - RTTimeSet, OS/2.
*/
/*
* Copyright (c) 2018 knut st. osmundsen <bird-src-spam@anduin.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP RTLOGGROUP_TIME
#define INCL_DOSDATETIME
#define INCL_DOSERRORS
#include <os2.h>
#include <iprt/time.h>
#include "internal/iprt.h"
#include <iprt/assert.h>
#include <iprt/errcore.h>
RTDECL(int) RTTimeSet(PCRTTIMESPEC pTime)
{
/*
* Convert to local time and explode it, keeping the distance
* between UTC and local.
*/
int64_t cNsLocalDelta = RTTimeLocalDeltaNanoFor(pTime);
RTTIMESPEC TimeLocal = *pTime;
RTTIME Exploded;
if (RTTimeExplode(&Exploded, RTTimeSpecAddNano(&TimeLocal, cNsLocalDelta)))
{
/*
* Fill in the OS/2 structure and make the call.
*/
DATETIME DateTime;
DateTime.hours = Exploded.u8Hour;
DateTime.minutes = Exploded.u8Minute;
DateTime.seconds = Exploded.u8Second;
DateTime.hundredths = (uint8_t)(Exploded.u32Nanosecond / (RT_NS_1SEC_64 / 100));
DateTime.day = Exploded.u8MonthDay;
DateTime.month = Exploded.u8Month;
DateTime.year = (uint16_t)Exploded.i32Year;
DateTime.weekday = Exploded.u8WeekDay;
/* Minutes from UTC. http://www.edm2.com/os2api/Dos/DosSetDateTime.html says
that timezones west of UTC should have a positive value. The kernel fails
the call if we're more than +/-780 min (13h) distant, so clamp it in
case of bogus TZ values. */
DateTime.timezone = (int16_t)(-cNsLocalDelta / (int64_t)RT_NS_1MIN);
if (DateTime.timezone > 780)
DateTime.timezone = 780;
else if (DateTime.timezone < -780)
DateTime.timezone = -780;
APIRET rc = DosSetDateTime(&DateTime);
if (rc == NO_ERROR)
return VINF_SUCCESS;
AssertMsgFailed(("rc=%u\n", rc));
return RTErrConvertFromOS2(rc);
}
return VERR_INVALID_PARAMETER;
}
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