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/* $Id: tstRTR0SemMutexDriver.cpp $ */
/** @file
* IPRT R0 Testcase - Thread Preemption, driver program.
*/
/*
* Copyright (C) 2009-2023 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/initterm.h>
#include <iprt/errcore.h>
#include <iprt/path.h>
#include <iprt/param.h>
#include <iprt/stream.h>
#include <iprt/string.h>
#include <iprt/test.h>
#include <iprt/thread.h>
#ifdef VBOX
# include <VBox/sup.h>
# include "tstRTR0SemMutex.h"
#endif
/*********************************************************************************************************************************
* Structures and Typedefs *
*********************************************************************************************************************************/
typedef struct TSTRTR0SEMMUTEXREQ
{
SUPR0SERVICEREQHDR Hdr;
char szMsg[256];
} TSTRTR0SEMMUTEXREQ;
typedef TSTRTR0SEMMUTEXREQ *PTSTRTR0SEMMUTEXREQ;
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static RTTEST g_hTest;
/**
* Thread function employed by tstDoThreadedTest.
*
* @returns IPRT status code.
* @param hThreadSelf The thread.
* @param pvUser The operation to perform.
*/
static DECLCALLBACK(int) tstThreadFn(RTTHREAD hThreadSelf, void *pvUser)
{
RT_NOREF1(hThreadSelf);
uint32_t u32 = (uint32_t)(uintptr_t)pvUser;
TSTRTR0SEMMUTEX enmDo = (TSTRTR0SEMMUTEX)RT_LOWORD(u32);
uint32_t cSecs = RT_HIWORD(u32);
TSTRTR0SEMMUTEXREQ Req;
RT_ZERO(Req);
Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
Req.Hdr.cbReq = sizeof(Req);
Req.szMsg[0] = '\0';
RTTEST_CHECK_RC_RET(g_hTest, SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
enmDo, cSecs, &Req.Hdr),
VINF_SUCCESS,
rcCheck);
if (Req.szMsg[0] == '!')
{
RTTestFailed(g_hTest, "%s", &Req.szMsg[1]);
return VERR_GENERAL_FAILURE;
}
if (Req.szMsg[0])
RTTestPrintf(g_hTest, RTTESTLVL_ALWAYS, "%s", Req.szMsg);
return VINF_SUCCESS;
}
/**
* Performs a threaded test.
*
* @returns true on success, false on failure.
* @param enmSetup The setup operation number.
* @param enmDo The do-it operation number.
* @param enmCleanup The cleanup operation number.
* @param cThreads The number of threads.
* @param pReq The request structure.
* @param pszTest The test name.
*/
static bool tstDoThreadedTest(TSTRTR0SEMMUTEX enmSetup, TSTRTR0SEMMUTEX enmDo, TSTRTR0SEMMUTEX enmCleanup,
unsigned cThreads, unsigned cSecs, PTSTRTR0SEMMUTEXREQ pReq, const char *pszTest)
{
RTTestSubF(g_hTest, "%s - %u threads", pszTest, cThreads);
RTTHREAD ahThreads[32];
RTTESTI_CHECK_RET(cThreads <= RT_ELEMENTS(ahThreads), false);
/*
* Setup.
*/
pReq->Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
pReq->Hdr.cbReq = sizeof(*pReq);
pReq->szMsg[0] = '\0';
RTTESTI_CHECK_RC_RET(SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1, enmSetup, 0, &pReq->Hdr),
VINF_SUCCESS, false);
if (pReq->szMsg[0] == '!')
return !!RTTestIFailedRc(false, "%s", &pReq->szMsg[1]);
if (pReq->szMsg[0])
RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", pReq->szMsg);
/*
* Test execution.
*/
for (unsigned i = 0; i < RT_ELEMENTS(ahThreads); i++)
ahThreads[i] = NIL_RTTHREAD;
int rc = VINF_SUCCESS;
for (unsigned i = 0; i < cThreads && RT_SUCCESS(rc); i++)
rc = RTThreadCreateF(&ahThreads[i], tstThreadFn, (void *)(uintptr_t)RT_MAKE_U32(enmDo, cSecs), 0, RTTHREADTYPE_DEFAULT,
RTTHREADFLAGS_WAITABLE, "test-%u", i);
for (unsigned i = 0; i < cThreads; i++)
if (ahThreads[i] != NIL_RTTHREAD)
{
int rcThread = VINF_SUCCESS;
int rc2 = RTThreadWait(ahThreads[i], 3600*1000, &rcThread);
if (RT_SUCCESS(rc2))
{
ahThreads[i] = NIL_RTTHREAD;
if (RT_FAILURE(rcThread) && RT_SUCCESS(rc2))
rc = rcThread;
}
else if (RT_SUCCESS(rc))
rc = rc2;
}
/*
* Cleanup.
*/
pReq->Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
pReq->Hdr.cbReq = sizeof(*pReq);
pReq->szMsg[0] = '\0';
RTTESTI_CHECK_RC_RET(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1, enmCleanup, 0, &pReq->Hdr),
VINF_SUCCESS, false);
if (pReq->szMsg[0] == '!')
return !!RTTestIFailedRc(false, "%s", &pReq->szMsg[1]);
if (pReq->szMsg[0])
RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", pReq->szMsg);
if (RT_FAILURE(rc))
for (unsigned i = 0; i < cThreads; i++)
if (ahThreads[i] != NIL_RTTHREAD)
RTThreadWait(ahThreads[i], 1000, NULL);
return RT_SUCCESS(rc);
}
/**
* Entry point.
*/
extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
{
RT_NOREF3(argc, argv, envp);
#ifndef VBOX
RTPrintf("tstSup: SKIPPED\n");
return 0;
#else
/*
* Init.
*/
RTTEST hTest;
int rc = RTTestInitAndCreate("tstRTR0SemMutex", &hTest);
if (rc)
return rc;
g_hTest = hTest;
RTTestBanner(hTest);
PSUPDRVSESSION pSession;
rc = SUPR3Init(&pSession);
if (RT_FAILURE(rc))
{
RTTestFailed(hTest, "SUPR3Init failed with rc=%Rrc\n", rc);
return RTTestSummaryAndDestroy(hTest);
}
char szPath[RTPATH_MAX];
rc = RTPathExecDir(szPath, sizeof(szPath));
if (RT_SUCCESS(rc))
rc = RTPathAppend(szPath, sizeof(szPath), "tstRTR0SemMutex.r0");
if (RT_FAILURE(rc))
{
RTTestFailed(hTest, "Failed constructing .r0 filename (rc=%Rrc)", rc);
return RTTestSummaryAndDestroy(hTest);
}
void *pvImageBase;
rc = SUPR3LoadServiceModule(szPath, "tstRTR0SemMutex",
"TSTRTR0SemMutexSrvReqHandler",
&pvImageBase);
if (RT_FAILURE(rc))
{
RTTestFailed(hTest, "SUPR3LoadServiceModule(%s,,,) failed with rc=%Rrc\n", szPath, rc);
return RTTestSummaryAndDestroy(hTest);
}
/* test request */
TSTRTR0SEMMUTEXREQ Req;
/*
* Sanity checks.
*/
RTTestSub(hTest, "Sanity");
Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
Req.Hdr.cbReq = sizeof(Req);
Req.szMsg[0] = '\0';
RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
TSTRTR0SEMMUTEX_SANITY_OK, 0, &Req.Hdr), VINF_SUCCESS);
if (RT_FAILURE(rc))
return RTTestSummaryAndDestroy(hTest);
RTTESTI_CHECK_MSG(Req.szMsg[0] == '\0', ("%s", Req.szMsg));
if (Req.szMsg[0] != '\0')
return RTTestSummaryAndDestroy(hTest);
Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
Req.Hdr.cbReq = sizeof(Req);
Req.szMsg[0] = '\0';
RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
TSTRTR0SEMMUTEX_SANITY_FAILURE, 0, &Req.Hdr), VINF_SUCCESS);
if (RT_FAILURE(rc))
return RTTestSummaryAndDestroy(hTest);
RTTESTI_CHECK_MSG(!strncmp(Req.szMsg, RT_STR_TUPLE("!42failure42")), ("%s", Req.szMsg));
if (strncmp(Req.szMsg, RT_STR_TUPLE("!42failure42")))
return RTTestSummaryAndDestroy(hTest);
/*
* Basic tests, bail out on failure.
*/
RTTestSub(hTest, "Basics");
Req.Hdr.u32Magic = SUPR0SERVICEREQHDR_MAGIC;
Req.Hdr.cbReq = sizeof(Req);
Req.szMsg[0] = '\0';
RTTESTI_CHECK_RC(rc = SUPR3CallR0Service("tstRTR0SemMutex", sizeof("tstRTR0SemMutex") - 1,
TSTRTR0SEMMUTEX_BASIC, 0, &Req.Hdr), VINF_SUCCESS);
if (RT_FAILURE(rc))
return RTTestSummaryAndDestroy(hTest);
if (Req.szMsg[0] == '!')
{
RTTestIFailed("%s", &Req.szMsg[1]);
return RTTestSummaryAndDestroy(hTest);
}
if (Req.szMsg[0])
RTTestIPrintf(RTTESTLVL_ALWAYS, "%s", Req.szMsg);
/*
* Tests with multiple threads for bugs in the contention part of the code.
* Test #2: Try to hold the semaphore for 1 ms.
* Test #3: Grab and release immediately.
* Test #4: Timeout checks. Try grab it for 0-32 ms and hold it for 1 s.
*/
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 1, 1, &Req, "test #2");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 2, 3, &Req, "test #2");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 3, 3, &Req, "test #2");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST2_SETUP, TSTRTR0SEMMUTEX_TEST2_DO, TSTRTR0SEMMUTEX_TEST2_CLEANUP, 9, 3, &Req, "test #2");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 1, 1, &Req, "test #3");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 2, 3, &Req, "test #3");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 3, 3, &Req, "test #3");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST3_SETUP, TSTRTR0SEMMUTEX_TEST3_DO, TSTRTR0SEMMUTEX_TEST3_CLEANUP, 9, 3, &Req, "test #3");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 1, 1, &Req, "test #4");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 2, 3, &Req, "test #4");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 3, 3, &Req, "test #4");
tstDoThreadedTest(TSTRTR0SEMMUTEX_TEST4_SETUP, TSTRTR0SEMMUTEX_TEST4_DO, TSTRTR0SEMMUTEX_TEST4_CLEANUP, 9, 3, &Req, "test #4");
/*
* Done.
*/
return RTTestSummaryAndDestroy(hTest);
#endif
}
#if !defined(VBOX_WITH_HARDENING) || !defined(RT_OS_WINDOWS)
/**
* Main entry point.
*/
int main(int argc, char **argv, char **envp)
{
return TrustedMain(argc, argv, envp);
}
#endif
|
