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/* $Id: tstTime-3.cpp $ */
/** @file
* IPRT Testcase - Simple RTTime test.
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/time.h>
#include <iprt/stream.h>
#include <iprt/string.h>
#include <iprt/initterm.h>
#include <iprt/thread.h>
#include <iprt/errcore.h>
int main(int argc, char **argv)
{
RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
if (argc <= 1)
{
RTPrintf("tstTime-3: usage: tstTime-3 <seconds> [seconds2 [..]]\n");
return 1;
}
RTPrintf("tstTime-3: Testing difference between RTTimeNanoTS() and RTTimeSystemNanoTS()...\n");
for (int i = 1; i < argc; i++)
{
uint64_t cSeconds = 0;
int rc = RTStrToUInt64Ex(argv[i], NULL, 0, &cSeconds);
if (RT_FAILURE(rc))
{
RTPrintf("tstTime-3: Invalid argument %d: %s\n", i, argv[i]);
return 1;
}
RTPrintf("tstTime-3: %d - %RU64 seconds period...\n", i, cSeconds);
RTTimeNanoTS(); RTTimeSystemNanoTS(); RTThreadSleep(1);
uint64_t u64RTStartTS = RTTimeNanoTS();
uint64_t u64OSStartTS = RTTimeSystemNanoTS();
RTThreadSleep(cSeconds * 1000);
uint64_t u64RTElapsedTS = RTTimeNanoTS();
uint64_t u64OSElapsedTS = RTTimeSystemNanoTS();
u64RTElapsedTS -= u64RTStartTS;
u64OSElapsedTS -= u64OSStartTS;
RTPrintf("tstTime-3: %d - RT: %16RU64 ns\n", i, u64RTElapsedTS);
RTPrintf("tstTime-3: %d - OS: %16RU64 ns\n", i, u64OSElapsedTS);
RTPrintf("tstTime-3: %d - diff: %16RI64 ns\n", i, u64RTElapsedTS - u64OSElapsedTS);
}
return 0;
}
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