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/* $Id: tstTime-3.cpp $ */
/** @file
* IPRT Testcase - Simple RTTime test.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox 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.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* 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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