VirtualBox

source: vbox/trunk/src/VBox/Runtime/errmsg.cpp@ 980

Last change on this file since 980 was 1, checked in by vboxsync, 55 years ago

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1/* $Id: errmsg.cpp 1 1970-01-01 00:00:00Z vboxsync $ */
2/** @file
3 * InnoTek Portable Runtime - Status code messages.
4 */
5
6/*
7 * Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13 * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14 * distribution. VirtualBox OSE is distributed in the hope that it will
15 * be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * If you received this file as part of a commercial VirtualBox
18 * distribution, then only the terms of your commercial VirtualBox
19 * license agreement apply instead of the previous paragraph.
20 */
21
22/*******************************************************************************
23* Header Files *
24*******************************************************************************/
25#include <iprt/err.h>
26#include <iprt/asm.h>
27#include <iprt/string.h>
28#include <iprt/err.h>
29#include <VBox/err.h>
30
31
32/*******************************************************************************
33* Global Variables *
34*******************************************************************************/
35/** Array of messages.
36 * The data is generated by a sed script.
37 */
38static const RTSTATUSMSG g_aStatusMsgs[] =
39{
40#include "errmsgdata.h"
41 { NULL, NULL, NULL, 0 }
42};
43
44
45/** Temporary buffers to format unknown messages in.
46 * @{
47 */
48static char g_aszUnknownStr[4][64];
49static RTSTATUSMSG g_aUnknownMsgs[4] =
50{
51 { &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], 0 },
52 { &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], 0 },
53 { &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], 0 },
54 { &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], 0 }
55};
56/** Last used index in g_aUnknownMsgs. */
57static volatile uint32_t g_iUnknownMsgs;
58/** @} */
59
60
61/**
62 * Get the message corresponding to a given status code.
63 *
64 * @returns Pointer to read-only message description.
65 * @param rc The status code.
66 */
67RTDECL(PCRTSTATUSMSG) RTErrGet(int rc)
68{
69 unsigned iFound = ~0;
70 unsigned i;
71 for (i = 0; i < ELEMENTS(g_aStatusMsgs); i++)
72 {
73 if (g_aStatusMsgs[i].iCode == rc)
74 {
75 /*
76 * Found a match.
77 * Since this isn't a unique key, we must check that it's not
78 * one of those start/end #defines before we return.
79 */
80 if ( !strstr(g_aStatusMsgs[i].pszDefine, "FIRST")
81 && !strstr(g_aStatusMsgs[i].pszDefine, "LAST"))
82 return &g_aStatusMsgs[i];
83 iFound = i;
84 }
85 }
86 if (iFound != ~0U)
87 return &g_aStatusMsgs[iFound];
88
89 /*
90 * Need to use the temporary stuff.
91 */
92 int iMsg = ASMAtomicXchgU32(&g_iUnknownMsgs, (g_iUnknownMsgs + 1) % ELEMENTS(g_aUnknownMsgs));
93 RTStrPrintf(&g_aszUnknownStr[iMsg][0], sizeof(g_aszUnknownStr[iMsg]), "Unknown Status %d\n", rc);
94 return &g_aUnknownMsgs[iMsg];
95}
96
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