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/* $Id: tstRTThreadExecutionTime.cpp $ */
/** @file
* IPRT Testcase - RTThreadGetExecution.
*/
/*
* Copyright (C) 2010-2023 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/thread.h>
#include <iprt/asm.h>
#include <iprt/test.h>
#include <iprt/string.h>
#include <iprt/stream.h>
#include <iprt/time.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static RTTEST g_hTest;
static volatile uint64_t g_kernel, g_user;
static DECLCALLBACK(int) testThread(RTTHREAD hSelf, void *pvUser)
{
RT_NOREF_PV(hSelf); RT_NOREF_PV(pvUser);
uint64_t u64Now = RTTimeMilliTS();
uint64_t kernel, kernelStart, user, userStart;
RTThreadGetExecutionTimeMilli(&kernelStart, &userStart);
while (RTTimeMilliTS() < u64Now + 1000)
;
RTThreadGetExecutionTimeMilli(&kernel, &user);
RTPrintf("kernel = %4lldms, user = %4lldms\n", kernel - kernelStart, user - userStart);
ASMAtomicAddU64(&g_kernel, kernel);
ASMAtomicAddU64(&g_user, user);
return VINF_SUCCESS;
}
static void test1(void)
{
RTTestSub(g_hTest, "Interrupt RTThreadSleep");
RTTHREAD hThread[16];
RTMSINTERVAL msWait = 1000;
for (unsigned i = 0; i < RT_ELEMENTS(hThread); i++)
{
RTTESTI_CHECK_RC_RETV(RTThreadCreate(&hThread[i], testThread, NULL, 0, RTTHREADTYPE_DEFAULT,
RTTHREADFLAGS_WAITABLE, "test"), VINF_SUCCESS);
}
RTThreadSleep(500);
RTPrintf("Waiting for %dms ...\n", msWait);
RTThreadSleep(msWait);
for (unsigned i = 0; i < RT_ELEMENTS(hThread); i++)
RTTESTI_CHECK_RC(RTThreadWait(hThread[i], RT_INDEFINITE_WAIT, NULL), VINF_SUCCESS);
RTPrintf("sum kernel = %lldms, sum user = %lldms\n", g_kernel, g_user);
}
int main()
{
RTEXITCODE rcExit = RTTestInitAndCreate("tstRTThreadExecutionTime", &g_hTest);
if (rcExit != RTEXITCODE_SUCCESS)
return rcExit;
test1();
return RTTestSummaryAndDestroy(g_hTest);
}
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