| 1 | /* $Id: tstTime-3.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - Simple RTTime test.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include <iprt/time.h>
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| 32 | #include <iprt/stream.h>
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| 33 | #include <iprt/string.h>
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| 34 | #include <iprt/initterm.h>
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| 35 | #include <iprt/thread.h>
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| 36 | #include <iprt/errcore.h>
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| 37 |
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| 38 |
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| 39 |
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| 40 | int main(int argc, char **argv)
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| 41 | {
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| 42 | RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
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| 43 |
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| 44 | if (argc <= 1)
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| 45 | {
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| 46 | RTPrintf("tstTime-3: usage: tstTime-3 <seconds> [seconds2 [..]]\n");
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| 47 | return 1;
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| 48 | }
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| 49 |
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| 50 | RTPrintf("tstTime-3: Testing difference between RTTimeNanoTS() and RTTimeSystemNanoTS()...\n");
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| 51 |
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| 52 | for (int i = 1; i < argc; i++)
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| 53 | {
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| 54 | uint64_t cSeconds = 0;
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| 55 | int rc = RTStrToUInt64Ex(argv[i], NULL, 0, &cSeconds);
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| 56 | if (RT_FAILURE(rc))
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| 57 | {
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| 58 | RTPrintf("tstTime-3: Invalid argument %d: %s\n", i, argv[i]);
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| 59 | return 1;
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| 60 | }
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| 61 | RTPrintf("tstTime-3: %d - %RU64 seconds period...\n", i, cSeconds);
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| 62 |
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| 63 | RTTimeNanoTS(); RTTimeSystemNanoTS(); RTThreadSleep(1);
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| 64 | uint64_t u64RTStartTS = RTTimeNanoTS();
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| 65 | uint64_t u64OSStartTS = RTTimeSystemNanoTS();
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| 66 |
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| 67 | RTThreadSleep(cSeconds * 1000);
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| 68 |
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| 69 | uint64_t u64RTElapsedTS = RTTimeNanoTS();
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| 70 | uint64_t u64OSElapsedTS = RTTimeSystemNanoTS();
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| 71 | u64RTElapsedTS -= u64RTStartTS;
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| 72 | u64OSElapsedTS -= u64OSStartTS;
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| 73 |
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| 74 | RTPrintf("tstTime-3: %d - RT: %16RU64 ns\n", i, u64RTElapsedTS);
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| 75 | RTPrintf("tstTime-3: %d - OS: %16RU64 ns\n", i, u64OSElapsedTS);
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| 76 | RTPrintf("tstTime-3: %d - diff: %16RI64 ns\n", i, u64RTElapsedTS - u64OSElapsedTS);
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| 77 | }
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| 78 |
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| 79 | return 0;
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| 80 | }
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| 81 |
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