| 1 | /* $Id: tstSemPingPong.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT Testcase - RTSemPing/RTSemPong.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2019 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include <iprt/semaphore.h>
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| 32 | #include <iprt/string.h>
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| 33 | #include <iprt/stream.h>
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| 34 | #include <iprt/initterm.h>
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| 35 | #include <iprt/thread.h>
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| 36 | #include <iprt/asm.h>
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| 37 |
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| 38 |
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| 39 | /*********************************************************************************************************************************
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| 40 | * Defined Constants And Macros *
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| 41 | *********************************************************************************************************************************/
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| 42 | #define TSTSEMPINGPONG_ITERATIONS 1000000
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| 43 |
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| 44 |
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| 45 | /*********************************************************************************************************************************
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| 46 | * Global Variables *
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| 47 | *********************************************************************************************************************************/
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| 48 | static volatile uint32_t g_cErrors = 0;
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| 49 |
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| 50 | static DECLCALLBACK(int) tstSemPingPongThread(RTTHREAD hThread, void *pvPP)
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| 51 | {
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| 52 | RT_NOREF_PV(hThread);
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| 53 |
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| 54 | int rc = VINF_SUCCESS; /* (MSC powers of deduction are rather weak. sigh) */
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| 55 | PRTPINGPONG pPP = (PRTPINGPONG)pvPP;
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| 56 | for (uint32_t i = 0; i < TSTSEMPINGPONG_ITERATIONS; i++)
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| 57 | {
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| 58 | if (!RTSemPongShouldWait(pPP))
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| 59 | {
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| 60 | ASMAtomicIncU32(&g_cErrors);
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| 61 | RTPrintf("tstSemPingPong: ERROR - RTSemPongShouldWait returned false before RTSemPongWait.\n");
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| 62 | }
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| 63 |
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| 64 | rc = RTSemPongWait(pPP, RT_INDEFINITE_WAIT);
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| 65 | if (RT_FAILURE(rc))
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| 66 | {
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| 67 | ASMAtomicIncU32(&g_cErrors);
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| 68 | RTPrintf("tstSemPingPong: ERROR - RTSemPongWait -> %Rrc\n", rc);
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| 69 | break;
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| 70 | }
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| 71 |
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| 72 | if (!RTSemPongIsSpeaker(pPP))
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| 73 | {
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| 74 | ASMAtomicIncU32(&g_cErrors);
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| 75 | RTPrintf("tstSemPingPong: ERROR - RTSemPongIsSpeaker returned false before RTSemPong.\n");
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| 76 | }
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| 77 |
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| 78 | rc = RTSemPong(pPP);
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| 79 | if (RT_FAILURE(rc))
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| 80 | {
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| 81 | ASMAtomicIncU32(&g_cErrors);
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| 82 | RTPrintf("tstSemPingPong: ERROR - RTSemPong -> %Rrc\n", rc);
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| 83 | break;
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| 84 | }
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| 85 | }
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| 86 | return rc;
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| 87 | }
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| 88 |
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| 89 |
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| 90 | int main()
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| 91 | {
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| 92 | RTR3InitExeNoArguments(0);
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| 93 |
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| 94 | /*
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| 95 | * Create a ping pong and kick off a second thread which we'll
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| 96 | * exchange TSTSEMPINGPONG_ITERATIONS messages with.
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| 97 | */
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| 98 | RTPINGPONG PingPong;
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| 99 | int rc = RTSemPingPongInit(&PingPong);
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| 100 | if (RT_FAILURE(rc))
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| 101 | {
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| 102 | RTPrintf("tstSemPingPong: FATAL ERROR - RTSemPingPongInit -> %Rrc\n", rc);
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| 103 | return 1;
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| 104 | }
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| 105 |
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| 106 | RTTHREAD hThread;
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| 107 | rc = RTThreadCreate(&hThread, tstSemPingPongThread, &PingPong, 0, RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "PONG");
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| 108 | if (RT_FAILURE(rc))
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| 109 | {
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| 110 | RTPrintf("tstSemPingPong: FATAL ERROR - RTSemPingPongInit -> %Rrc\n", rc);
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| 111 | return 1;
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| 112 | }
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| 113 |
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| 114 | RTPrintf("tstSemPingPong: TESTING - %u iterations...\n", TSTSEMPINGPONG_ITERATIONS);
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| 115 | for (uint32_t i = 0; i < TSTSEMPINGPONG_ITERATIONS; i++)
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| 116 | {
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| 117 | if (!RTSemPingIsSpeaker(&PingPong))
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| 118 | {
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| 119 | ASMAtomicIncU32(&g_cErrors);
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| 120 | RTPrintf("tstSemPingPong: ERROR - RTSemPingIsSpeaker returned false before RTSemPing.\n");
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| 121 | }
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| 122 |
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| 123 | rc = RTSemPing(&PingPong);
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| 124 | if (RT_FAILURE(rc))
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| 125 | {
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| 126 | ASMAtomicIncU32(&g_cErrors);
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| 127 | RTPrintf("tstSemPingPong: ERROR - RTSemPing -> %Rrc\n", rc);
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| 128 | break;
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| 129 | }
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| 130 |
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| 131 | if (!RTSemPingShouldWait(&PingPong))
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| 132 | {
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| 133 | ASMAtomicIncU32(&g_cErrors);
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| 134 | RTPrintf("tstSemPingPong: ERROR - RTSemPingShouldWait returned false before RTSemPingWait.\n");
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| 135 | }
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| 136 |
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| 137 | rc = RTSemPingWait(&PingPong, RT_INDEFINITE_WAIT);
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| 138 | if (RT_FAILURE(rc))
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| 139 | {
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| 140 | ASMAtomicIncU32(&g_cErrors);
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| 141 | RTPrintf("tstSemPingPong: ERROR - RTSemPingWait -> %Rrc\n", rc);
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| 142 | break;
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| 143 | }
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| 144 | }
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| 145 |
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| 146 | int rcThread;
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| 147 | rc = RTThreadWait(hThread, 5000, &rcThread);
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| 148 | if (RT_FAILURE(rc))
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| 149 | {
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| 150 | ASMAtomicIncU32(&g_cErrors);
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| 151 | RTPrintf("tstSemPingPong: ERROR - RTSemPingWait -> %Rrc\n", rc);
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| 152 | }
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| 153 |
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| 154 | rc = RTSemPingPongDelete(&PingPong);
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| 155 | if (RT_FAILURE(rc))
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| 156 | {
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| 157 | ASMAtomicIncU32(&g_cErrors);
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| 158 | RTPrintf("tstSemPingPong: ERROR - RTSemPingPongDestroy -> %Rrc\n", rc);
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| 159 | }
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| 160 |
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| 161 | /*
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| 162 | * Summary.
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| 163 | */
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| 164 | uint32_t cErrors = ASMAtomicUoReadU32(&g_cErrors);
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| 165 | if (cErrors)
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| 166 | RTPrintf("tstSemPingPong: FAILED - %d errors\n", cErrors);
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| 167 | else
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| 168 | RTPrintf("tstSemPingPong: SUCCESS\n");
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| 169 | return cErrors ? 1 : 0;
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| 170 | }
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| 171 |
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