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/* $Id$ */
/** @file
* IPRT R0 Testcase - Mutex Semaphores.
*/
/*
* Copyright (C) 2009-2016 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/semaphore.h>
#include <iprt/err.h>
#include <VBox/sup.h>
#include <iprt/string.h>
#include <iprt/time.h>
#include <iprt/thread.h>
#include "tstRTR0SemMutex.h"
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** The mutex used in test #2. */
static RTSEMMUTEX g_hMtxTest2 = NIL_RTSEMMUTEX;
/**
* Service request callback function.
*
* @returns VBox status code.
* @param pSession The caller's session.
* @param u64Arg 64-bit integer argument.
* @param pReqHdr The request header. Input / Output. Optional.
*/
DECLEXPORT(int) TSTRTR0SemMutexSrvReqHandler(PSUPDRVSESSION pSession, uint32_t uOperation,
uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr)
{
NOREF(pSession);
if (!VALID_PTR(pReqHdr))
return VERR_INVALID_PARAMETER;
char *pszErr = (char *)(pReqHdr + 1);
size_t cchErr = pReqHdr->cbReq - sizeof(*pReqHdr);
if (cchErr < 32 || cchErr >= 0x10000)
return VERR_INVALID_PARAMETER;
*pszErr = '\0';
#define SET_ERROR(szFmt) do { if (!*pszErr) RTStrPrintf(pszErr, cchErr, "!" szFmt); } while (0)
#define SET_ERROR1(szFmt, a1) do { if (!*pszErr) RTStrPrintf(pszErr, cchErr, "!" szFmt, a1); } while (0)
#define SET_ERROR2(szFmt, a1, a2) do { if (!*pszErr) RTStrPrintf(pszErr, cchErr, "!" szFmt, a1, a2); } while (0)
#define SET_ERROR3(szFmt, a1, a2, a3) do { if (!*pszErr) RTStrPrintf(pszErr, cchErr, "!" szFmt, a1, a2, a3); } while (0)
#define CHECK_RC_BREAK(rc, rcExpect, szOp) \
if ((rc) != (rcExpect)) \
{ \
RTStrPrintf(pszErr, cchErr, "!%s -> %Rrc, expected %Rrc. line %u", szOp, rc, rcExpect, __LINE__); \
SUPR0Printf("%s -> %d, expected %d. line %u", szOp, rc, rcExpect, __LINE__); \
break; \
}
/*
* Set up test timeout (when applicable).
*/
if (u64Arg > 120)
{
SET_ERROR1("Timeout is too large (max 120): %lld", u64Arg);
return VINF_SUCCESS;
}
uint64_t const StartTS = RTTimeSystemMilliTS();
uint32_t const cMsMax = (uint32_t)u64Arg * 1000;
/*
* The big switch.
*/
RTSEMMUTEX hMtx;
int rc;
switch (uOperation)
{
case TSTRTR0SEMMUTEX_SANITY_OK:
break;
case TSTRTR0SEMMUTEX_SANITY_FAILURE:
SET_ERROR1("42failure42%1024s", "");
break;
case TSTRTR0SEMMUTEX_BASIC:
rc = RTSemMutexCreate(&hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexCreate");
do
{
/*
* The interruptible version first.
*/
/* simple request and release, polling. */
rc = RTSemMutexRequestNoResume(hMtx, 0);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
/* simple request and release, wait for ever. */
rc = RTSemMutexRequestNoResume(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume(indef_wait)");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
/* simple request and release, wait a tiny while. */
rc = RTSemMutexRequestNoResume(hMtx, 133);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume(133)");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
/* nested request and release. */
rc = RTSemMutexRequestNoResume(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume#1");
rc = RTSemMutexRequestNoResume(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume#2");
rc = RTSemMutexRequestNoResume(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume#3");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#3");
rc = RTSemMutexRequestNoResume(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume#3b");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#3b");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#2");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#1");
/*
* The uninterruptible variant.
*/
/* simple request and release, polling. */
rc = RTSemMutexRequest(hMtx, 0);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
/* simple request and release, wait for ever. */
rc = RTSemMutexRequest(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest(indef_wait)");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
/* simple request and release, wait a tiny while. */
rc = RTSemMutexRequest(hMtx, 133);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest(133)");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
/* nested request and release. */
rc = RTSemMutexRequest(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest#1");
rc = RTSemMutexRequest(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest#2");
rc = RTSemMutexRequest(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest#3");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#3");
rc = RTSemMutexRequest(hMtx, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequest#3b");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#3b");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#2");
rc = RTSemMutexRelease(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease#1");
} while (false);
rc = RTSemMutexDestroy(hMtx);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexDestroy");
break;
case TSTRTR0SEMMUTEX_TEST2_SETUP:
case TSTRTR0SEMMUTEX_TEST3_SETUP:
case TSTRTR0SEMMUTEX_TEST4_SETUP:
rc = RTSemMutexCreate(&g_hMtxTest2);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexCreate");
break;
case TSTRTR0SEMMUTEX_TEST2_DO:
for (unsigned i = 0; i < 200; i++)
{
if (i & 1)
{
rc = RTSemMutexRequestNoResume(g_hMtxTest2, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume(,indef_wait)");
}
else
{
rc = RTSemMutexRequestNoResume(g_hMtxTest2, 30000);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume(,30000)");
}
RTThreadSleep(1);
rc = RTSemMutexRelease(g_hMtxTest2);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
if ((i % 16) == 15 && RTTimeSystemMilliTS() - StartTS >= cMsMax)
break;
}
break;
case TSTRTR0SEMMUTEX_TEST3_DO:
for (unsigned i = 0; i < 1000000; i++)
{
if (i & 1)
{
rc = RTSemMutexRequestNoResume(g_hMtxTest2, RT_INDEFINITE_WAIT);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume(,indef_wait)");
}
else
{
rc = RTSemMutexRequestNoResume(g_hMtxTest2, 30000);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume(,30000)");
}
rc = RTSemMutexRelease(g_hMtxTest2);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
if ((i % 256) == 255 && RTTimeSystemMilliTS() - StartTS >= cMsMax)
break;
}
break;
case TSTRTR0SEMMUTEX_TEST4_DO:
for (unsigned i = 0; i < 1024; i++)
{
rc = RTSemMutexRequestNoResume(g_hMtxTest2, (i % 32));
if (rc != VERR_TIMEOUT)
{
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRequestNoResume");
RTThreadSleep(1000);
rc = RTSemMutexRelease(g_hMtxTest2);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexRelease");
}
if (RTTimeSystemMilliTS() - StartTS >= cMsMax)
break;
}
break;
case TSTRTR0SEMMUTEX_TEST2_CLEANUP:
case TSTRTR0SEMMUTEX_TEST3_CLEANUP:
case TSTRTR0SEMMUTEX_TEST4_CLEANUP:
rc = RTSemMutexDestroy(g_hMtxTest2);
CHECK_RC_BREAK(rc, VINF_SUCCESS, "RTSemMutexCreate");
g_hMtxTest2 = NIL_RTSEMMUTEX;
break;
default:
SET_ERROR1("Unknown test #%d", uOperation);
break;
}
/* The error indicator is the '!' in the message buffer. */
return VINF_SUCCESS;
}
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