From 16f504a9dca3fe3b70568f67b7d41241ae485288 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:49:04 +0200 Subject: Adding upstream version 7.0.6-dfsg. Signed-off-by: Daniel Baumann --- src/VBox/Runtime/r3/posix/errvars-posix.cpp | 88 +++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 src/VBox/Runtime/r3/posix/errvars-posix.cpp (limited to 'src/VBox/Runtime/r3/posix/errvars-posix.cpp') diff --git a/src/VBox/Runtime/r3/posix/errvars-posix.cpp b/src/VBox/Runtime/r3/posix/errvars-posix.cpp new file mode 100644 index 00000000..71f16593 --- /dev/null +++ b/src/VBox/Runtime/r3/posix/errvars-posix.cpp @@ -0,0 +1,88 @@ +/* $Id: errvars-posix.cpp $ */ +/** @file + * IPRT - Save and Restore Error Variables, POSIX Ring-3. + */ + +/* + * Copyright (C) 2011-2022 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 "internal/iprt.h" + +#include +#include "internal/magics.h" + + + +RTDECL(PRTERRVARS) RTErrVarsSave(PRTERRVARS pVars) +{ + pVars->ai32Vars[0] = RTERRVARS_MAGIC; + pVars->ai32Vars[1] = errno; + pVars->ai32Vars[2] = h_errno; + return pVars; +} + + +RTDECL(void) RTErrVarsRestore(PCRTERRVARS pVars) +{ + AssertReturnVoid(pVars->ai32Vars[0] == RTERRVARS_MAGIC); + h_errno = pVars->ai32Vars[2]; + errno = pVars->ai32Vars[1]; +} + + +RTDECL(bool) RTErrVarsAreEqual(PCRTERRVARS pVars1, PCRTERRVARS pVars2) +{ + Assert(pVars1->ai32Vars[0] == RTERRVARS_MAGIC); + Assert(pVars2->ai32Vars[0] == RTERRVARS_MAGIC); + + return pVars1->ai32Vars[0] == pVars2->ai32Vars[0] + && pVars1->ai32Vars[1] == pVars2->ai32Vars[1] + && pVars1->ai32Vars[2] == pVars2->ai32Vars[2]; +} + + +RTDECL(bool) RTErrVarsHaveChanged(PCRTERRVARS pVars) +{ + Assert(pVars->ai32Vars[0] == RTERRVARS_MAGIC); + + return pVars->ai32Vars[0] != RTERRVARS_MAGIC + || pVars->ai32Vars[1] != errno + || pVars->ai32Vars[2] != h_errno; +} + -- cgit v1.2.3