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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/generic/semfastmutex-generic.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/generic/semfastmutex-generic.cpp')
-rw-r--r-- | src/VBox/Runtime/generic/semfastmutex-generic.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/VBox/Runtime/generic/semfastmutex-generic.cpp b/src/VBox/Runtime/generic/semfastmutex-generic.cpp new file mode 100644 index 00000000..28366ab5 --- /dev/null +++ b/src/VBox/Runtime/generic/semfastmutex-generic.cpp @@ -0,0 +1,92 @@ +/* $Id: semfastmutex-generic.cpp $ */ +/** @file + * IPRT - Fast Mutex, Generic. + */ + +/* + * Copyright (C) 2006-2023 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/semaphore.h> +#include "internal/iprt.h" + +#include <iprt/alloc.h> +#include <iprt/errcore.h> +#include <iprt/critsect.h> + + + +RTDECL(int) RTSemFastMutexCreate(PRTSEMFASTMUTEX phFastMtx) +{ + PRTCRITSECT pCritSect = (PRTCRITSECT)RTMemAlloc(sizeof(RTCRITSECT)); + if (!pCritSect) + return VERR_NO_MEMORY; + + int rc = RTCritSectInitEx(pCritSect, RTCRITSECT_FLAGS_NO_NESTING, + NIL_RTLOCKVALCLASS, RTLOCKVAL_SUB_CLASS_NONE, NULL); + if (RT_SUCCESS(rc)) + *phFastMtx = (RTSEMFASTMUTEX)pCritSect; + else + RTMemFree(pCritSect); + return rc; +} +RT_EXPORT_SYMBOL(RTSemFastMutexCreate); + + +RTDECL(int) RTSemFastMutexDestroy(RTSEMFASTMUTEX hFastMtx) +{ + if (hFastMtx == NIL_RTSEMFASTMUTEX) + return VERR_INVALID_PARAMETER; + PRTCRITSECT pCritSect = (PRTCRITSECT)hFastMtx; + int rc = RTCritSectDelete(pCritSect); + if (RT_SUCCESS(rc)) + RTMemFree(pCritSect); + return rc; +} +RT_EXPORT_SYMBOL(RTSemFastMutexDestroy); + + +RTDECL(int) RTSemFastMutexRequest(RTSEMFASTMUTEX hFastMtx) +{ + return RTCritSectEnter((PRTCRITSECT)hFastMtx); +} +RT_EXPORT_SYMBOL(RTSemFastMutexRequest); + + +RTDECL(int) RTSemFastMutexRelease(RTSEMFASTMUTEX hFastMtx) +{ + return RTCritSectLeave((PRTCRITSECT)hFastMtx); +} +RT_EXPORT_SYMBOL(RTSemFastMutexRelease); + |