/* $Id: tstRTR0SemMutex.cpp $ */ /** @file * IPRT R0 Testcase - Mutex Semaphores. */ /* * 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 . * * 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 #include #include #include #include #include #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 (!RT_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; }