| 1 | /* $Id: time-r0drv-os2.cpp 8245 2008-04-21 17:24:28Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - Time, Ring-0 Driver, OS/2.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2007 knut st. osmundsen <[email protected]>
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| 17 | *
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| 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| 20 | *
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| 29 | */
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| 30 |
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| 31 |
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| 32 | /*******************************************************************************
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| 33 | * Header Files *
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| 34 | *******************************************************************************/
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| 35 | #include "the-os2-kernel.h"
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| 36 |
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| 37 | #include <iprt/time.h>
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| 38 |
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| 39 |
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| 40 | RTDECL(uint64_t) RTTimeNanoTS(void)
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| 41 | {
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| 42 | /** @remark OS/2 Ring-0: will wrap after 48 days. */
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| 43 | return g_pGIS->msecs * UINT64_C(1000000);
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| 44 | }
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| 45 |
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| 46 |
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| 47 | RTDECL(uint64_t) RTTimeMilliTS(void)
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| 48 | {
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| 49 | /** @remark OS/2 Ring-0: will wrap after 48 days. */
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| 50 | return g_pGIS->msecs;
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| 51 | }
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| 52 |
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| 53 |
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| 54 | RTDECL(uint64_t) RTTimeSystemNanoTS(void)
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| 55 | {
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| 56 | /** @remark OS/2 Ring-0: will wrap after 48 days. */
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| 57 | return g_pGIS->msecs * UINT64_C(1000000);
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| 58 | }
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| 59 |
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| 60 |
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| 61 | RTDECL(uint64_t) RTTimeSystemMilliTS(void)
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| 62 | {
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| 63 | /** @remark OS/2 Ring-0: will wrap after 48 days. */
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| 64 | return g_pGIS->msecs;
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| 65 | }
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| 66 |
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| 67 |
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| 68 | RTDECL(PRTTIMESPEC) RTTimeNow(PRTTIMESPEC pTime)
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| 69 | {
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| 70 | /*
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| 71 | * Get the seconds since the unix epoch (local time) and current hundredths.
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| 72 | */
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| 73 | GINFOSEG volatile *pGIS = (GINFOSEG volatile *)g_pGIS;
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| 74 | UCHAR uchHundredths;
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| 75 | ULONG ulSeconds;
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| 76 | do
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| 77 | {
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| 78 | uchHundredths = pGIS->hundredths;
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| 79 | ulSeconds = pGIS->time;
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| 80 | } while ( uchHundredths == pGIS->hundredths
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| 81 | && ulSeconds == pGIS->time);
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| 82 |
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| 83 | /*
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| 84 | * Combine the two and convert to UCT (later).
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| 85 | */
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| 86 | uint64_t u64 = ulSeconds * UINT64_C(1000000000) + (uint32_t)uchHundredths * 10000000;
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| 87 | /** @todo convert from local to UCT. */
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| 88 |
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| 89 | /** @remark OS/2 Ring-0: Currently returns local time instead of UCT. */
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| 90 | return RTTimeSpecSetNano(pTime, u64);
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| 91 | }
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| 92 |
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