VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/path/RTPathSplitA.cpp@ 57358

Last change on this file since 57358 was 57358, checked in by vboxsync, 9 years ago

*: scm cleanup run.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.9 KB
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1/* $Id: RTPathSplitA.cpp 57358 2015-08-14 15:16:38Z vboxsync $ */
2/** @file
3 * IPRT - RTPathSplitA and RTPathSplitFree.
4 */
5
6/*
7 * Copyright (C) 2013-2015 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include "internal/iprt.h"
32#include <iprt/path.h>
33
34#include <iprt/assert.h>
35#include <iprt/err.h>
36#include <iprt/mem.h>
37#include <iprt/string.h>
38
39
40
41RTDECL(int) RTPathSplitATag(const char *pszPath, PRTPATHSPLIT *ppSplit, uint32_t fFlags, const char *pszTag)
42{
43 AssertPtrReturn(ppSplit, VERR_INVALID_POINTER);
44 *ppSplit = NULL;
45
46 /*
47 * Try estimate a reasonable buffer size based on the path length.
48 * Note! No point in trying very hard to get it right.
49 */
50 size_t cbSplit = strlen(pszPath);
51 cbSplit += RT_OFFSETOF(RTPATHSPLIT, apszComps[cbSplit / 8]) + cbSplit / 8 + 8;
52 cbSplit = RT_ALIGN(cbSplit, 64);
53 PRTPATHSPLIT pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
54 if (pSplit == NULL)
55 return VERR_NO_MEMORY;
56
57 /*
58 * First try. If it fails due to buffer, reallocate the buffer and try again.
59 */
60 int rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
61 if (rc == VERR_BUFFER_OVERFLOW)
62 {
63 cbSplit = RT_ALIGN(pSplit->cbNeeded, 64);
64 RTMemFree(pSplit);
65
66 pSplit = (PRTPATHSPLIT)RTMemAllocTag(cbSplit, pszTag);
67 if (pSplit == NULL)
68 return VERR_NO_MEMORY;
69 rc = RTPathSplit(pszPath, pSplit, cbSplit, fFlags);
70 }
71
72 /*
73 * Done (one way or the other).
74 */
75 if (RT_SUCCESS(rc))
76 *ppSplit = pSplit;
77 else
78 RTMemFree(pSplit);
79 return rc;
80}
81
82
83RTDECL(void) RTPathSplitFree(PRTPATHSPLIT pSplit)
84{
85 if (pSplit)
86 {
87 Assert(pSplit->u16Reserved = UINT16_C(0xbeef));
88 RTMemFree(pSplit);
89 }
90}
91
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