| 1 | /* $Id: errmsg.cpp 44528 2013-02-04 14:27:54Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Status code messages.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2012 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 <iprt/err.h>
|
|---|
| 32 | #include "internal/iprt.h"
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/asm.h>
|
|---|
| 35 | #include <iprt/string.h>
|
|---|
| 36 | #include <iprt/err.h>
|
|---|
| 37 | #include <VBox/err.h>
|
|---|
| 38 |
|
|---|
| 39 |
|
|---|
| 40 | /*******************************************************************************
|
|---|
| 41 | * Global Variables *
|
|---|
| 42 | *******************************************************************************/
|
|---|
| 43 | /** Array of messages.
|
|---|
| 44 | * The data is generated by a sed script.
|
|---|
| 45 | */
|
|---|
| 46 | static const RTSTATUSMSG g_aStatusMsgs[] =
|
|---|
| 47 | {
|
|---|
| 48 | #include "errmsgdata.h"
|
|---|
| 49 | { NULL, NULL, NULL, 0 }
|
|---|
| 50 | };
|
|---|
| 51 |
|
|---|
| 52 |
|
|---|
| 53 | /** Temporary buffers to format unknown messages in.
|
|---|
| 54 | * @{
|
|---|
| 55 | */
|
|---|
| 56 | static char g_aszUnknownStr[4][64];
|
|---|
| 57 | static RTSTATUSMSG g_aUnknownMsgs[4] =
|
|---|
| 58 | {
|
|---|
| 59 | { &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], 0 },
|
|---|
| 60 | { &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], 0 },
|
|---|
| 61 | { &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], 0 },
|
|---|
| 62 | { &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], 0 }
|
|---|
| 63 | };
|
|---|
| 64 | /** Last used index in g_aUnknownMsgs. */
|
|---|
| 65 | static volatile uint32_t g_iUnknownMsgs;
|
|---|
| 66 | /** @} */
|
|---|
| 67 |
|
|---|
| 68 |
|
|---|
| 69 | /**
|
|---|
| 70 | * Get the message corresponding to a given status code.
|
|---|
| 71 | *
|
|---|
| 72 | * @returns Pointer to read-only message description.
|
|---|
| 73 | * @param rc The status code.
|
|---|
| 74 | */
|
|---|
| 75 | RTDECL(PCRTSTATUSMSG) RTErrGet(int rc)
|
|---|
| 76 | {
|
|---|
| 77 | unsigned iFound = ~0;
|
|---|
| 78 | unsigned i;
|
|---|
| 79 | for (i = 0; i < RT_ELEMENTS(g_aStatusMsgs); i++)
|
|---|
| 80 | {
|
|---|
| 81 | if (g_aStatusMsgs[i].iCode == rc)
|
|---|
| 82 | {
|
|---|
| 83 | /*
|
|---|
| 84 | * Found a match.
|
|---|
| 85 | * Since this isn't a unique key, we must check that it's not
|
|---|
| 86 | * one of those start/end #defines before we return.
|
|---|
| 87 | */
|
|---|
| 88 | #define STR_ENDS_WITH(a_psz, a_cch, a_sz) \
|
|---|
| 89 | ( (a_cch) >= sizeof(a_sz) && !strncmp((a_psz) + (a_cch) - sizeof(a_sz) + 1, RT_STR_TUPLE(a_sz)) )
|
|---|
| 90 | size_t const cchDefine = strlen(g_aStatusMsgs[i].pszDefine);
|
|---|
| 91 | if ( !STR_ENDS_WITH(g_aStatusMsgs[i].pszDefine, cchDefine, "_FIRST")
|
|---|
| 92 | && !STR_ENDS_WITH(g_aStatusMsgs[i].pszDefine, cchDefine, "_LAST")
|
|---|
| 93 | && !STR_ENDS_WITH(g_aStatusMsgs[i].pszDefine, cchDefine, "_LOWEST")
|
|---|
| 94 | && !STR_ENDS_WITH(g_aStatusMsgs[i].pszDefine, cchDefine, "_HIGHEST")
|
|---|
| 95 | )
|
|---|
| 96 | return &g_aStatusMsgs[i];
|
|---|
| 97 | iFound = i;
|
|---|
| 98 | }
|
|---|
| 99 | }
|
|---|
| 100 | if (iFound != ~0U)
|
|---|
| 101 | return &g_aStatusMsgs[iFound];
|
|---|
| 102 |
|
|---|
| 103 | /*
|
|---|
| 104 | * Need to use the temporary stuff.
|
|---|
| 105 | */
|
|---|
| 106 | int iMsg = ASMAtomicXchgU32(&g_iUnknownMsgs, (g_iUnknownMsgs + 1) % RT_ELEMENTS(g_aUnknownMsgs));
|
|---|
| 107 | RTStrPrintf(&g_aszUnknownStr[iMsg][0], sizeof(g_aszUnknownStr[iMsg]), "Unknown Status 0x%X", rc);
|
|---|
| 108 | return &g_aUnknownMsgs[iMsg];
|
|---|
| 109 | }
|
|---|
| 110 | RT_EXPORT_SYMBOL(RTErrGet);
|
|---|
| 111 |
|
|---|
