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Diffstat (limited to 'src/VBox/Runtime/testcase/tstRTShMem.cpp')
| -rw-r--r-- | src/VBox/Runtime/testcase/tstRTShMem.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/VBox/Runtime/testcase/tstRTShMem.cpp b/src/VBox/Runtime/testcase/tstRTShMem.cpp new file mode 100644 index 00000000..52a1da24 --- /dev/null +++ b/src/VBox/Runtime/testcase/tstRTShMem.cpp @@ -0,0 +1,158 @@ +/* $Id: tstRTShMem.cpp $ */ +/** @file + * IPRT Testcase - RTShMem. + */ + +/* + * Copyright (C) 2018-2023 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 <https://www.gnu.org/licenses>. + * + * 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 <iprt/shmem.h> + +#include <iprt/err.h> +#include <iprt/log.h> +#include <iprt/string.h> +#include <iprt/test.h> + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Global shared memory object used across all tests. */ +static RTSHMEM g_hShMem = NIL_RTSHMEM; +/** Data to read/write initially. */ +static char g_szDataBefore[] = "Data before modification!"; +/** Data to read/write for the modification. */ +static char g_szDataAfter[] = "Data after modification!"; + + + +static void tstRTShMem2(void) +{ + RTTestISub("Negative"); + + /** @todo */ +} + + +static void tstRTShMem1(void) +{ + RTTestISub("Basics"); + + /* create and destroy. */ + int rc = RTShMemOpen(&g_hShMem, "tstRTShMem-Share", RTSHMEM_O_F_CREATE_EXCL | RTSHMEM_O_F_READWRITE | RTSHMEM_O_F_MAYBE_EXEC, + _512K, 0); + if (RT_FAILURE(rc)) + { + RTTESTI_CHECK_RC_RETV(rc, VERR_ALREADY_EXISTS); + RTTESTI_CHECK_RC(RTShMemDelete("tstRTShMem-Share"), VINF_SUCCESS); + RTTESTI_CHECK_RC_RETV(RTShMemOpen(&g_hShMem, "tstRTShMem-Share", RTSHMEM_O_F_CREATE | RTSHMEM_O_F_READWRITE | RTSHMEM_O_F_MAYBE_EXEC, + _512K, 0), + VINF_SUCCESS); + } + + RTTESTI_CHECK_RETV(g_hShMem != NIL_RTSHMEM); + + /* Query the size. */ + size_t cbShMem = 0; + RTTESTI_CHECK_RC(RTShMemQuerySize(g_hShMem, &cbShMem), VINF_SUCCESS); + RTTESTI_CHECK(cbShMem == _512K); + + /* Create a mapping. */ + void *pvMap; + RTTESTI_CHECK_RC_RETV(RTShMemMapRegion(g_hShMem, 0, cbShMem, RTSHMEM_MAP_F_READ | RTSHMEM_MAP_F_WRITE, &pvMap), VINF_SUCCESS); + memset(pvMap, 0, cbShMem); + memcpy(pvMap, &g_szDataBefore[0], sizeof(g_szDataBefore)); + + /* Open the shared memory object and create a second mapping. */ + RTSHMEM hShMemRead = NIL_RTSHMEM; + RTTESTI_CHECK_RC_RETV(RTShMemOpen(&hShMemRead, "tstRTShMem-Share", RTSHMEM_O_F_READWRITE | RTSHMEM_O_F_MAYBE_EXEC, + 0, 0), + VINF_SUCCESS); + RTTESTI_CHECK_RETV(hShMemRead != NIL_RTSHMEM); + + void *pvMapRead = NULL; + RTTESTI_CHECK_RC(RTShMemQuerySize(hShMemRead, &cbShMem), VINF_SUCCESS); + RTTESTI_CHECK(cbShMem == _512K); + RTTESTI_CHECK_RC_RETV(RTShMemMapRegion(hShMemRead, 0, cbShMem, RTSHMEM_MAP_F_READ | RTSHMEM_MAP_F_WRITE, &pvMapRead), VINF_SUCCESS); + RTTESTI_CHECK(!memcmp(pvMapRead, &g_szDataBefore[0], sizeof(g_szDataBefore))); + RTTESTI_CHECK(!memcmp(pvMapRead, pvMap, cbShMem)); + + /* Alter the data in the first mapping and check that it is visible in the second one. */ + memcpy(pvMap, &g_szDataAfter[0], sizeof(g_szDataAfter)); + RTTESTI_CHECK(!memcmp(pvMapRead, &g_szDataAfter[0], sizeof(g_szDataAfter))); + RTTESTI_CHECK(!memcmp(pvMapRead, pvMap, cbShMem)); + + RTTESTI_CHECK_RC(RTShMemUnmapRegion(hShMemRead, pvMapRead), VINF_SUCCESS); + RTTESTI_CHECK_RC(RTShMemClose(hShMemRead), VINF_SUCCESS); + RTTESTI_CHECK_RC(RTShMemUnmapRegion(g_hShMem, pvMap), VINF_SUCCESS); + RTTESTI_CHECK_RC(RTShMemClose(g_hShMem), VINF_SUCCESS); + g_hShMem = NIL_RTSHMEM; +} + +int main() +{ + RTTEST hTest; + int rc = RTTestInitAndCreate("tstRTShMem", &hTest); + if (rc) + return rc; + RTTestBanner(hTest); + + /* + * The tests. + */ + tstRTShMem1(); + if (RTTestErrorCount(hTest) == 0) + { + bool fMayPanic = RTAssertMayPanic(); + bool fQuiet = RTAssertAreQuiet(); + RTAssertSetMayPanic(false); + RTAssertSetQuiet(true); + tstRTShMem2(); + RTAssertSetQuiet(fQuiet); + RTAssertSetMayPanic(fMayPanic); + } + + if (g_hShMem != NIL_RTSHMEM) + { + RTTESTI_CHECK_RC(RTShMemClose(g_hShMem), VINF_SUCCESS); + g_hShMem = NIL_RTSHMEM; + } + + /* + * Summary. + */ + return RTTestSummaryAndDestroy(hTest); +} + |