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/* $Id: time-r0drv-os2.cpp $ */
/** @file
* IPRT - Time, Ring-0 Driver, OS/2.
*/
/*
* Copyright (c) 2007 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 *
*********************************************************************************************************************************/
#include "the-os2-kernel.h"
#include <iprt/time.h>
RTDECL(uint64_t) RTTimeNanoTS(void)
{
/** @remark OS/2 Ring-0: will wrap after 48 days. */
return g_pGIS->msecs * UINT64_C(1000000);
}
RTDECL(uint64_t) RTTimeMilliTS(void)
{
/** @remark OS/2 Ring-0: will wrap after 48 days. */
return g_pGIS->msecs;
}
RTDECL(uint64_t) RTTimeSystemNanoTS(void)
{
/** @remark OS/2 Ring-0: will wrap after 48 days. */
return g_pGIS->msecs * UINT64_C(1000000);
}
RTDECL(uint64_t) RTTimeSystemMilliTS(void)
{
/** @remark OS/2 Ring-0: will wrap after 48 days. */
return g_pGIS->msecs;
}
RTDECL(PRTTIMESPEC) RTTimeNow(PRTTIMESPEC pTime)
{
/*
* Get the seconds since the unix epoch (local time) and current hundredths.
*/
GINFOSEG volatile *pGIS = (GINFOSEG volatile *)g_pGIS;
UCHAR uchHundredths;
ULONG ulSeconds;
do
{
uchHundredths = pGIS->hundredths;
ulSeconds = pGIS->time;
} while ( uchHundredths == pGIS->hundredths
&& ulSeconds == pGIS->time);
/*
* Combine the two and convert to UCT (later).
*/
uint64_t u64 = ulSeconds * UINT64_C(1000000000) + (uint32_t)uchHundredths * 10000000;
/** @todo convert from local to UCT. */
/** @remark OS/2 Ring-0: Currently returns local time instead of UCT. */
return RTTimeSpecSetNano(pTime, u64);
}
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