VirtualBox

source: vbox/trunk/src/VBox/Runtime/generic/RTFileMove-generic.cpp@ 28587

Last change on this file since 28587 was 21337, checked in by vboxsync, 15 years ago

IPRT,HostDrv,AddDrv: Export public IPRT symbols for the linux kernel (pain).

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 4.4 KB
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1/* $Id: RTFileMove-generic.cpp 21337 2009-07-07 14:58:27Z vboxsync $ */
2/** @file
3 * IPRT - RTFileMove, Generic.
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27 * Clara, CA 95054 USA or visit http://www.sun.com if you need
28 * additional information or have any questions.
29 */
30
31
32/*******************************************************************************
33* Header Files *
34*******************************************************************************/
35#define LOG_GROUP RTLOGGROUP_FILE
36#include <iprt/file.h>
37#include "internal/iprt.h"
38
39#include <iprt/path.h>
40#include <iprt/err.h>
41#include <iprt/assert.h>
42#include <iprt/log.h>
43
44
45RTDECL(int) RTFileMove(const char *pszSrc, const char *pszDst, unsigned fMove)
46{
47 /*
48 * Validate input.
49 */
50 AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
51 AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
52 AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER);
53 AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER);
54 AssertMsgReturn(!(fMove & ~RTFILEMOVE_FLAGS_REPLACE), ("%#x\n", fMove), VERR_INVALID_PARAMETER);
55
56 /*
57 * Try RTFileRename first.
58 */
59 Assert(RTPATHRENAME_FLAGS_REPLACE == RTFILEMOVE_FLAGS_REPLACE);
60 unsigned fRename = fMove;
61 int rc = RTFileRename(pszSrc, pszDst, fRename);
62 if (rc == VERR_NOT_SAME_DEVICE)
63 {
64 const char *pszDelete = NULL;
65
66 /*
67 * The source and target are not on the same device, darn.
68 * We'll try open both ends and perform a copy.
69 */
70 RTFILE FileSrc;
71 rc = RTFileOpen(&FileSrc, pszSrc, RTFILE_O_READ | RTFILE_O_DENY_WRITE | RTFILE_O_OPEN);
72 if (RT_SUCCESS(rc))
73 {
74 RTFILE FileDst;
75 rc = RTFileOpen(&FileDst, pszDst, RTFILE_O_WRITE | RTFILE_O_DENY_ALL | RTFILE_O_CREATE_REPLACE);
76 if (RT_SUCCESS(rc))
77 {
78 rc = RTFileCopyByHandles(FileSrc, FileDst);
79 if (RT_SUCCESS(rc))
80 pszDelete = pszSrc;
81 else
82 {
83 pszDelete = pszDst;
84 Log(("RTFileMove('%s', '%s', %#x): copy failed, rc=%Rrc\n",
85 pszSrc, pszDst, fMove, rc));
86 }
87
88 /* try delete without closing, and could perhaps avoid some trouble */
89 int rc2 = RTFileDelete(pszDelete);
90 if (RT_SUCCESS(rc2))
91 pszDelete = NULL;
92 RTFileClose(FileDst);
93 }
94 else
95 Log(("RTFileMove('%s', '%s', %#x): failed to create destination, rc=%Rrc\n",
96 pszSrc, pszDst, fMove, rc));
97 RTFileClose(FileSrc);
98 }
99 else
100 Log(("RTFileMove('%s', '%s', %#x): failed to open source, rc=%Rrc\n",
101 pszSrc, pszDst, fMove, rc));
102
103 /* if we failed to close it while open, close it now */
104 if (pszDelete)
105 {
106 int rc2 = RTFileDelete(pszDelete);
107 if (RT_FAILURE(rc2))
108 Log(("RTFileMove('%s', '%s', %#x): failed to delete '%s', rc2=%Rrc (rc=%Rrc)\n",
109 pszSrc, pszDst, fMove, pszDelete, rc2, rc));
110 }
111 }
112
113 LogFlow(("RTDirRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
114 pszSrc, pszSrc, pszDst, pszDst, fMove, rc));
115 return rc;
116}
117RT_EXPORT_SYMBOL(RTFileMove);
118
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