tstOnce.cpp revision 731832c43e76dea65af377cb59ad45e5bc251655
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync/* $Id$ */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync/** @file
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * IPRT Testcase - RTOnce.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync/*
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Copyright (C) 2008 Sun Microsystems, Inc.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync *
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * available from http://www.virtualbox.org. This file is free software;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * you can redistribute it and/or modify it under the terms of the GNU
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * General Public License (GPL) as published by the Free Software
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync *
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * The contents of this file may alternatively be used under the terms
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * of the Common Development and Distribution License Version 1.0
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * VirtualBox OSE distribution, in which case the provisions of the
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * CDDL are applicable instead of those of the GPL.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync *
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * You may elect to license modified versions of this file under the
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * terms and conditions of either the GPL or the CDDL or both.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync *
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * additional information or have any questions.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync/*******************************************************************************
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync* Header Files *
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync*******************************************************************************/
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/once.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/stream.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/initterm.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/thread.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/semaphore.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/string.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/err.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync#include <iprt/asm.h>
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync/*******************************************************************************
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync* Global Variables *
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync*******************************************************************************/
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic int g_cErrors = 0;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic bool g_fOnceCB1 = false;
731832c43e76dea65af377cb59ad45e5bc251655vboxsyncstatic uint32_t volatile g_cOnce2CB = 0;
731832c43e76dea65af377cb59ad45e5bc251655vboxsyncstatic bool volatile g_fOnce2Ready = false;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic RTONCE g_Once2 = RTONCE_INITIALIZER;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic RTSEMEVENTMULTI g_hEventMulti = NIL_RTSEMEVENTMULTI;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic DECLCALLBACK(int) Once1CB(void *pvUser1, void *pvUser2)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync{
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (g_fOnceCB1)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return VERR_WRONG_ORDER;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (pvUser1 != (void *)1 || pvUser2 != (void *)42)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - Once1CB: pvUser1=%p pvUser2=%p!\n", pvUser1, pvUser2);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_cErrors++;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return VERR_INVALID_PARAMETER;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return VINF_SUCCESS;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync}
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic DECLCALLBACK(int) Once2CB(void *pvUser1, void *pvUser2)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync{
731832c43e76dea65af377cb59ad45e5bc251655vboxsync if (ASMAtomicIncU32(&g_cOnce2CB) != 1)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
731832c43e76dea65af377cb59ad45e5bc251655vboxsync RTPrintf("tstOnce: ERROR - Once2CB: g_cOnce2CB not zero!\n");
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_cErrors++;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return VERR_WRONG_ORDER;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (pvUser1 != (void *)42 || pvUser2 != (void *)1)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - Once2CB: pvUser1=%p pvUser2=%p!\n", pvUser1, pvUser2);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_cErrors++;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return VERR_INVALID_PARAMETER;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
731832c43e76dea65af377cb59ad45e5bc251655vboxsync RTThreadSleep(2);
731832c43e76dea65af377cb59ad45e5bc251655vboxsync Assert(!g_fOnce2Ready);
731832c43e76dea65af377cb59ad45e5bc251655vboxsync ASMAtomicWriteBool(&g_fOnce2Ready, true);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return VINF_SUCCESS;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync}
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncstatic DECLCALLBACK(int) Once2Thread(RTTHREAD hThread, void *pvUser)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync{
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync NOREF(hThread); NOREF(pvUser);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync int rc = RTSemEventMultiWait(g_hEventMulti, RT_INDEFINITE_WAIT);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (RT_FAILURE(rc))
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return rc;
731832c43e76dea65af377cb59ad45e5bc251655vboxsync rc = RTOnce(&g_Once2, Once2CB, (void *)42, (void *)1);
731832c43e76dea65af377cb59ad45e5bc251655vboxsync if (RT_SUCCESS(rc))
731832c43e76dea65af377cb59ad45e5bc251655vboxsync {
731832c43e76dea65af377cb59ad45e5bc251655vboxsync if (!ASMAtomicUoReadBool(&g_fOnce2Ready))
731832c43e76dea65af377cb59ad45e5bc251655vboxsync {
731832c43e76dea65af377cb59ad45e5bc251655vboxsync RTPrintf("tstOnce: ERROR - Once2CB: Not initialized!\n");
731832c43e76dea65af377cb59ad45e5bc251655vboxsync g_cErrors++;
731832c43e76dea65af377cb59ad45e5bc251655vboxsync }
731832c43e76dea65af377cb59ad45e5bc251655vboxsync }
731832c43e76dea65af377cb59ad45e5bc251655vboxsync return rc;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync}
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsyncint main()
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync{
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTR3Init();
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /*
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Just a simple testcase.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync */
731832c43e76dea65af377cb59ad45e5bc251655vboxsync RTPrintf("tstOnce: TESTING - smoke...\n");
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTONCE Once1 = RTONCE_INITIALIZER;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_fOnceCB1 = false;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync int rc = RTOnce(&Once1, Once1CB, (void *)1, (void *)42);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (rc != VINF_SUCCESS)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - Once1, 1 failed, rc=%Rrc\n", rc);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_fOnceCB1 = false;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync rc = RTOnce(&Once1, Once1CB, (void *)1, (void *)42);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (rc != VINF_SUCCESS)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - Once1, 2 failed, rc=%Rrc\n", rc);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /*
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Throw a bunch of threads up against a init once thing.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync */
731832c43e76dea65af377cb59ad45e5bc251655vboxsync RTPrintf("tstOnce: TESTING - bunch of threads...\n");
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /* create the semaphore they'll be waiting on. */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync rc = RTSemEventMultiCreate(&g_hEventMulti);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (RT_FAILURE(rc))
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: FATAL ERROR - RTSemEventMultiCreate returned %Rrc\n", rc);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return 1;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /* create the threads */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTTHREAD aThreads[32];
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync for (unsigned i = 0; i < RT_ELEMENTS(aThreads); i++)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync char szName[16];
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTStrPrintf(szName, sizeof(szName), "ONCE2-%d\n", i);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync int rc = RTThreadCreate(&aThreads[i], Once2Thread, NULL, 0, RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, szName);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (RT_FAILURE(rc))
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - failed to create thread #%d\n", i);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_cErrors++;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /* kick them off and yield */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync rc = RTSemEventMultiSignal(g_hEventMulti);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (RT_FAILURE(rc))
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: FATAL ERROR - RTSemEventMultiSignal returned %Rrc\n", rc);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return 1;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTThreadYield();
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /* wait for all of them to finish up, 30 seconds each. */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync for (unsigned i = 0; i < RT_ELEMENTS(aThreads); i++)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (aThreads[i] != NIL_RTTHREAD)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync int rc2;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync int rc = RTThreadWait(aThreads[i], 30*1000, &rc2);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (RT_FAILURE(rc))
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - RTThreadWait on thread #%u returned %Rrc\n", i, rc);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_cErrors++;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync else if (RT_FAILURE(rc2))
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync {
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: ERROR - Thread #%u returned %Rrc\n", i, rc2);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync g_cErrors++;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync }
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync /*
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync * Summary.
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync */
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync if (!g_cErrors)
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: SUCCESS\n");
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync else
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync RTPrintf("tstOnce: FAILURE - %d errors\n", g_cErrors);
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync return !!g_cErrors;
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync}
33b0e5fd502b10034575ffa7c8a30c6816222ce2vboxsync