VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/err/errmsg.cpp@ 21812

Last change on this file since 21812 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: 3.7 KB
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1/* $Id: errmsg.cpp 21337 2009-07-07 14:58:27Z vboxsync $ */
2/** @file
3 * IPRT - Status code messages.
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#include <iprt/err.h>
36#include "internal/iprt.h"
37
38#include <iprt/asm.h>
39#include <iprt/string.h>
40#include <iprt/err.h>
41#include <VBox/err.h>
42
43
44/*******************************************************************************
45* Global Variables *
46*******************************************************************************/
47/** Array of messages.
48 * The data is generated by a sed script.
49 */
50static const RTSTATUSMSG g_aStatusMsgs[] =
51{
52#include "errmsgdata.h"
53 { NULL, NULL, NULL, 0 }
54};
55
56
57/** Temporary buffers to format unknown messages in.
58 * @{
59 */
60static char g_aszUnknownStr[4][64];
61static RTSTATUSMSG g_aUnknownMsgs[4] =
62{
63 { &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], 0 },
64 { &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], 0 },
65 { &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], 0 },
66 { &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], 0 }
67};
68/** Last used index in g_aUnknownMsgs. */
69static volatile uint32_t g_iUnknownMsgs;
70/** @} */
71
72
73/**
74 * Get the message corresponding to a given status code.
75 *
76 * @returns Pointer to read-only message description.
77 * @param rc The status code.
78 */
79RTDECL(PCRTSTATUSMSG) RTErrGet(int rc)
80{
81 unsigned iFound = ~0;
82 unsigned i;
83 for (i = 0; i < RT_ELEMENTS(g_aStatusMsgs); i++)
84 {
85 if (g_aStatusMsgs[i].iCode == rc)
86 {
87 /*
88 * Found a match.
89 * Since this isn't a unique key, we must check that it's not
90 * one of those start/end #defines before we return.
91 */
92 if ( !strstr(g_aStatusMsgs[i].pszDefine, "FIRST")
93 && !strstr(g_aStatusMsgs[i].pszDefine, "LAST"))
94 return &g_aStatusMsgs[i];
95 iFound = i;
96 }
97 }
98 if (iFound != ~0U)
99 return &g_aStatusMsgs[iFound];
100
101 /*
102 * Need to use the temporary stuff.
103 */
104 int iMsg = ASMAtomicXchgU32(&g_iUnknownMsgs, (g_iUnknownMsgs + 1) % RT_ELEMENTS(g_aUnknownMsgs));
105 RTStrPrintf(&g_aszUnknownStr[iMsg][0], sizeof(g_aszUnknownStr[iMsg]), "Unknown Status 0x%X", rc);
106 return &g_aUnknownMsgs[iMsg];
107}
108RT_EXPORT_SYMBOL(RTErrGet);
109
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