Adding upstream version 7.0.20-dfsg.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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249
include/iprt/cpp/path.h
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249
include/iprt/cpp/path.h
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/** @file
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* IPRT - C++ path utilities.
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*/
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/*
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* Copyright (C) 2017-2023 Oracle and/or its affiliates.
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*
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* This file is part of VirtualBox base platform packages, as
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* available from https://www.virtualbox.org.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, in version 3 of the
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* License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <https://www.gnu.org/licenses>.
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*
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* The contents of this file may alternatively be used under the terms
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* of the Common Development and Distribution License Version 1.0
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* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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* in the VirtualBox distribution, in which case the provisions of the
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* CDDL are applicable instead of those of the GPL.
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*
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* You may elect to license modified versions of this file under the
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* terms and conditions of either the GPL or the CDDL or both.
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*
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* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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*/
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#ifndef IPRT_INCLUDED_cpp_path_h
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#define IPRT_INCLUDED_cpp_path_h
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#ifndef RT_WITHOUT_PRAGMA_ONCE
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# pragma once
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#endif
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#include <iprt/assert.h>
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#include <iprt/errcore.h>
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#include <iprt/path.h>
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#include <iprt/cpp/ministring.h>
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/** @defgroup grp_rt_cpp_path C++ Path Utilities
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* @ingroup grp_rt_cpp
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* @{
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*/
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/**
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* RTPathAbs() wrapper for working directly on a RTCString instance.
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*
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* @returns IPRT status code.
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* @param rStrAbs Reference to the destination string.
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* @param pszRelative The relative source string.
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*/
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DECLINLINE(int) RTPathAbsCxx(RTCString &rStrAbs, const char *pszRelative)
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{
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Assert(rStrAbs.c_str() != pszRelative);
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int rc = rStrAbs.reserveNoThrow(RTPATH_MAX);
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if (RT_SUCCESS(rc))
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{
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unsigned cTries = 8;
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for (;;)
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{
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char *pszDst = rStrAbs.mutableRaw();
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size_t cbCap = rStrAbs.capacity();
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rc = RTPathAbsEx(NULL, pszRelative, RTPATH_STR_F_STYLE_HOST, pszDst, &cbCap);
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if (RT_SUCCESS(rc))
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break;
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*pszDst = '\0';
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if (rc != VERR_BUFFER_OVERFLOW)
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break;
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if (--cTries == 0)
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break;
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rc = rStrAbs.reserveNoThrow(RT_MIN(RT_ALIGN_Z(cbCap, 64), RTPATH_MAX));
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if (RT_FAILURE(rc))
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break;
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}
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rStrAbs.jolt();
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}
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return rc;
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}
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/**
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* RTPathAbs() wrapper for working directly on a RTCString instance.
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*
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* @returns IPRT status code.
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* @param rStrAbs Reference to the destination string.
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* @param rStrRelative Reference to the relative source string.
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*/
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DECLINLINE(int) RTPathAbsCxx(RTCString &rStrAbs, RTCString const &rStrRelative)
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{
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return RTPathAbsCxx(rStrAbs, rStrRelative.c_str());
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}
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/**
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* RTPathAbsEx() wrapper for working directly on a RTCString instance.
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*
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* @returns IPRT status code.
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* @param rStrAbs Reference to the destination string.
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* @param pszBase The base path, optional.
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* @param pszRelative The relative source string.
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* @param fFlags RTPATH_STR_F_STYLE_XXX and RTPATHABS_F_XXX flags.
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*/
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DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, const char *pszBase, const char *pszRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
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{
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Assert(rStrAbs.c_str() != pszRelative);
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int rc = rStrAbs.reserveNoThrow(RTPATH_MAX);
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if (RT_SUCCESS(rc))
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{
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unsigned cTries = 8;
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for (;;)
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{
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char *pszDst = rStrAbs.mutableRaw();
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size_t cbCap = rStrAbs.capacity();
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rc = RTPathAbsEx(pszBase, pszRelative, fFlags, pszDst, &cbCap);
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if (RT_SUCCESS(rc))
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break;
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*pszDst = '\0';
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if (rc != VERR_BUFFER_OVERFLOW)
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break;
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if (--cTries == 0)
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break;
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rc = rStrAbs.reserveNoThrow(RT_MIN(RT_ALIGN_Z(cbCap, 64), RTPATH_MAX));
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if (RT_FAILURE(rc))
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break;
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}
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rStrAbs.jolt();
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}
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return rc;
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}
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DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, RTCString const &rStrBase, RTCString const &rStrRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
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{
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return RTPathAbsExCxx(rStrAbs, rStrBase.c_str(), rStrRelative.c_str(), fFlags);
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}
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DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, const char *pszBase, RTCString const &rStrRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
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{
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return RTPathAbsExCxx(rStrAbs, pszBase, rStrRelative.c_str(), fFlags);
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}
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DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, RTCString const &rStrBase, const char *pszRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
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{
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return RTPathAbsExCxx(rStrAbs, rStrBase.c_str(), pszRelative, fFlags);
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}
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/**
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* RTPathAppPrivateNoArch() wrapper for working directly on a RTCString instance.
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*
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* @returns IPRT status code.
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* @param rStrDst Reference to the destination string.
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*/
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DECLINLINE(int) RTPathAppPrivateNoArchCxx(RTCString &rStrDst)
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{
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int rc = rStrDst.reserveNoThrow(RTPATH_MAX);
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if (RT_SUCCESS(rc))
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{
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char *pszDst = rStrDst.mutableRaw();
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rc = RTPathAppPrivateNoArch(pszDst, rStrDst.capacity());
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if (RT_FAILURE(rc))
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*pszDst = '\0';
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rStrDst.jolt();
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}
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return rc;
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}
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/**
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* RTPathAppend() wrapper for working directly on a RTCString instance.
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*
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* @returns IPRT status code.
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* @param rStrDst Reference to the destination string.
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* @param pszAppend One or more components to append to the path already
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* present in @a rStrDst.
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*/
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DECLINLINE(int) RTPathAppendCxx(RTCString &rStrDst, const char *pszAppend)
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{
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Assert(rStrDst.c_str() != pszAppend);
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size_t cbEstimate = rStrDst.length() + 1 + strlen(pszAppend) + 1;
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int rc;
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if (rStrDst.capacity() >= cbEstimate)
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rc = VINF_SUCCESS;
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else
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rc = rStrDst.reserveNoThrow(RT_ALIGN_Z(cbEstimate, 8));
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if (RT_SUCCESS(rc))
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{
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rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), pszAppend);
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if (rc == VERR_BUFFER_OVERFLOW)
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{
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rc = rStrDst.reserveNoThrow(RTPATH_MAX);
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if (RT_SUCCESS(rc))
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rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), pszAppend);
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}
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rStrDst.jolt();
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}
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return rc;
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}
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/**
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* RTPathAppend() wrapper for working directly on a RTCString instance.
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*
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* @returns IPRT status code.
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* @param rStrDst Reference to the destination string.
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* @param rStrAppend One or more components to append to the path already
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* present in @a rStrDst.
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*/
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DECLINLINE(int) RTPathAppendCxx(RTCString &rStrDst, RTCString const &rStrAppend)
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{
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Assert(&rStrDst != &rStrAppend);
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size_t cbEstimate = rStrDst.length() + 1 + rStrAppend.length() + 1;
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int rc;
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if (rStrDst.capacity() >= cbEstimate)
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rc = VINF_SUCCESS;
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else
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rc = rStrDst.reserveNoThrow(RT_ALIGN_Z(cbEstimate, 8));
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if (RT_SUCCESS(rc))
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{
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rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), rStrAppend.c_str());
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if (rc == VERR_BUFFER_OVERFLOW)
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{
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rc = rStrDst.reserveNoThrow(RTPATH_MAX);
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if (RT_SUCCESS(rc))
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rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), rStrAppend.c_str());
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}
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rStrDst.jolt();
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}
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return rc;
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}
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/** @} */
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#endif /* !IPRT_INCLUDED_cpp_path_h */
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