1 | /* $Id: errmsgwin.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - Status code messages.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2019 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 |
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28 | /*********************************************************************************************************************************
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29 | * Header Files *
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30 | *********************************************************************************************************************************/
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31 | #include <iprt/win/windows.h>
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32 |
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33 | #include <iprt/errcore.h>
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34 | #include <iprt/asm.h>
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35 | #include <iprt/string.h>
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36 | #include <iprt/errcore.h>
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37 |
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38 |
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39 | /*********************************************************************************************************************************
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40 | * Global Variables *
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41 | *********************************************************************************************************************************/
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42 | /** Array of messages.
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43 | * The data is generated by a sed script.
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44 | */
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45 | static const RTWINERRMSG g_aStatusMsgs[] =
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46 | {
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47 | #if !defined(IPRT_NO_ERROR_DATA) && !defined(DOXYGEN_RUNNING)
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48 | # include "errmsgcomdata.h"
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49 | # if defined(VBOX) && !defined(IN_GUEST)
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50 | # include "errmsgvboxcomdata.h"
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51 | # endif
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52 | #else
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53 | { "Success.", "ERROR_SUCCESS", 0 },
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54 | #endif
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55 | { NULL, NULL, 0 }
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56 | };
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57 |
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58 |
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59 | /** Temporary buffers to format unknown messages in.
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60 | * @{
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61 | */
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62 | static char g_aszUnknownStr[4][64];
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63 | static RTWINERRMSG g_aUnknownMsgs[4] =
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64 | {
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65 | { &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], 0 },
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66 | { &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], 0 },
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67 | { &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], 0 },
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68 | { &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], 0 }
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69 | };
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70 | /** Last used index in g_aUnknownMsgs. */
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71 | static volatile uint32_t g_iUnknownMsgs;
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72 | /** @} */
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73 |
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74 |
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75 | /**
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76 | * Get the message corresponding to a given status code.
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77 | *
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78 | * @returns Pointer to read-only message description.
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79 | * @param rc The status code.
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80 | */
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81 | RTDECL(PCRTWINERRMSG) RTErrWinGet(long rc)
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82 | {
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83 | unsigned i;
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84 | for (i = 0; i < RT_ELEMENTS(g_aStatusMsgs) - 1U; i++)
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85 | if (g_aStatusMsgs[i].iCode == rc)
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86 | return &g_aStatusMsgs[i];
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87 |
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88 | /* The g_aStatusMsgs table contains a wild mix of error codes with and
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89 | * without included facility and severity. So the chance is high that there
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90 | * was no exact match. Try to find a non-exact match, and include the
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91 | * actual value in case we pick the wrong entry. Better than always using
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92 | * the "Unknown Status" case. */
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93 | for (i = 0; i < RT_ELEMENTS(g_aStatusMsgs) - 1U; i++)
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94 | if (g_aStatusMsgs[i].iCode == HRESULT_CODE(rc))
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95 | {
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96 | int32_t iMsg = (ASMAtomicIncU32(&g_iUnknownMsgs) - 1) % RT_ELEMENTS(g_aUnknownMsgs);
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97 | RTStrPrintf(&g_aszUnknownStr[iMsg][0], sizeof(g_aszUnknownStr[iMsg]), "%s 0x%X", g_aStatusMsgs[i].pszDefine, rc);
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98 | return &g_aUnknownMsgs[iMsg];
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99 | }
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100 |
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101 | /*
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102 | * Need to use the temporary stuff.
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103 | */
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104 | int32_t iMsg = (ASMAtomicIncU32(&g_iUnknownMsgs) - 1) % RT_ELEMENTS(g_aUnknownMsgs);
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105 | RTStrPrintf(&g_aszUnknownStr[iMsg][0], sizeof(g_aszUnknownStr[iMsg]), "Unknown Status 0x%X", rc);
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106 | return &g_aUnknownMsgs[iMsg];
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107 | }
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108 |
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109 |
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110 | RTDECL(PCRTCOMERRMSG) RTErrCOMGet(uint32_t rc)
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111 | {
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112 | return RTErrWinGet((long)rc);
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113 | }
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114 |
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