/* $Id: tstSemPingPong.cpp $ */ /** @file * IPRT Testcase - RTSemPing/RTSemPong. */ /* * Copyright (C) 2006-2019 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/string.h> #include <iprt/stream.h> #include <iprt/initterm.h> #include <iprt/thread.h> #include <iprt/asm.h> /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ #define TSTSEMPINGPONG_ITERATIONS 1000000 /********************************************************************************************************************************* * Global Variables * *********************************************************************************************************************************/ static volatile uint32_t g_cErrors = 0; static DECLCALLBACK(int) tstSemPingPongThread(RTTHREAD hThread, void *pvPP) { RT_NOREF_PV(hThread); int rc = VINF_SUCCESS; /* (MSC powers of deduction are rather weak. sigh) */ PRTPINGPONG pPP = (PRTPINGPONG)pvPP; for (uint32_t i = 0; i < TSTSEMPINGPONG_ITERATIONS; i++) { if (!RTSemPongShouldWait(pPP)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPongShouldWait returned false before RTSemPongWait.\n"); } rc = RTSemPongWait(pPP, RT_INDEFINITE_WAIT); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPongWait -> %Rrc\n", rc); break; } if (!RTSemPongIsSpeaker(pPP)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPongIsSpeaker returned false before RTSemPong.\n"); } rc = RTSemPong(pPP); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPong -> %Rrc\n", rc); break; } } return rc; } int main() { RTR3InitExeNoArguments(0); /* * Create a ping pong and kick off a second thread which we'll * exchange TSTSEMPINGPONG_ITERATIONS messages with. */ RTPINGPONG PingPong; int rc = RTSemPingPongInit(&PingPong); if (RT_FAILURE(rc)) { RTPrintf("tstSemPingPong: FATAL ERROR - RTSemPingPongInit -> %Rrc\n", rc); return 1; } RTTHREAD hThread; rc = RTThreadCreate(&hThread, tstSemPingPongThread, &PingPong, 0, RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "PONG"); if (RT_FAILURE(rc)) { RTPrintf("tstSemPingPong: FATAL ERROR - RTSemPingPongInit -> %Rrc\n", rc); return 1; } RTPrintf("tstSemPingPong: TESTING - %u iterations...\n", TSTSEMPINGPONG_ITERATIONS); for (uint32_t i = 0; i < TSTSEMPINGPONG_ITERATIONS; i++) { if (!RTSemPingIsSpeaker(&PingPong)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingIsSpeaker returned false before RTSemPing.\n"); } rc = RTSemPing(&PingPong); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPing -> %Rrc\n", rc); break; } if (!RTSemPingShouldWait(&PingPong)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingShouldWait returned false before RTSemPingWait.\n"); } rc = RTSemPingWait(&PingPong, RT_INDEFINITE_WAIT); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingWait -> %Rrc\n", rc); break; } } int rcThread; rc = RTThreadWait(hThread, 5000, &rcThread); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingWait -> %Rrc\n", rc); } rc = RTSemPingPongDelete(&PingPong); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingPongDestroy -> %Rrc\n", rc); } /* * Summary. */ uint32_t cErrors = ASMAtomicUoReadU32(&g_cErrors); if (cErrors) RTPrintf("tstSemPingPong: FAILED - %d errors\n", cErrors); else RTPrintf("tstSemPingPong: SUCCESS\n"); return cErrors ? 1 : 0; }