1 | /* $Id: assert.cpp 17410 2009-03-05 15:15:04Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - Assertion Workers.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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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 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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28 | * additional information or have any questions.
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29 | */
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30 |
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31 |
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32 | /*******************************************************************************
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33 | * Header Files *
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34 | *******************************************************************************/
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35 | #include <iprt/assert.h>
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36 | #include <iprt/log.h>
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37 | #include <iprt/string.h>
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38 | #include <iprt/stdarg.h>
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39 | #ifdef IN_RING3
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40 | # include <stdio.h>
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41 | #endif
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42 |
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43 |
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44 | #if defined(IN_GUEST_R0) && (defined(RT_OS_LINUX) || defined(RT_OS_WINDOWS))
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45 | /*
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46 | * This is legacy that should be eliminated. OS specific code deals with
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47 | * R0 assertions now and it will do the backdoor printfs in addition to
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48 | * proper OS specific printfs and panics / BSODs / IPEs.
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49 | */
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50 | #include <VBox/log.h>
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51 |
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52 |
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53 | /**
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54 | * The 1st part of an assert message.
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55 | *
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56 | * @param pszExpr Expression. Can be NULL.
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57 | * @param uLine Location line number.
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58 | * @param pszFile Location file name.
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59 | * @param pszFunction Location function name.
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60 | * @remark This API exists in HC Ring-3 and GC.
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61 | */
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62 | RTDECL(void) AssertMsg1(const char *pszExpr, unsigned uLine, const char *pszFile, const char *pszFunction)
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63 | {
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64 | RTLogBackdoorPrintf("\n!!Assertion Failed!!\n"
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65 | "Expression: %s\n"
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66 | "Location : %s(%d) %s\n",
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67 | pszExpr, pszFile, uLine, pszFunction);
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68 | }
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69 |
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70 |
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71 | /**
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72 | * The 2nd (optional) part of an assert message.
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73 | *
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74 | * @param pszFormat Printf like format string.
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75 | * @param ... Arguments to that string.
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76 | * @remark This API exists in HC Ring-3 and GC.
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77 | */
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78 | RTDECL(void) AssertMsg2(const char *pszFormat, ...)
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79 | { /* forwarder. */
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80 | va_list args;
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81 | va_start(args, pszFormat);
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82 | RTLogBackdoorPrintfV(pszFormat, args);
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83 | va_end(args);
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84 | }
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85 |
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86 | # if defined(RT_OS_LINUX) && defined(IN_MODULE)
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87 | /*
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88 | * When we build this in the Linux kernel module, we wish to make the
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89 | * symbols available to other modules as well.
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90 | */
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91 | # include "the-linux-kernel.h"
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92 | EXPORT_SYMBOL(AssertMsg1);
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93 | EXPORT_SYMBOL(AssertMsg2);
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94 | # endif
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95 |
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96 | #elif defined(IN_RING0)
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97 |
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98 | /* OS specific. */
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99 |
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100 | #else /* !IN_RING0 */
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101 |
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102 |
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103 | /** The last assert message, 1st part. */
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104 | RTDATADECL(char) g_szRTAssertMsg1[1024];
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105 | /** The last assert message, 2nd part. */
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106 | RTDATADECL(char) g_szRTAssertMsg2[2048];
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107 |
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108 | /**
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109 | * The 1st part of an assert message.
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110 | *
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111 | * @param pszExpr Expression. Can be NULL.
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112 | * @param uLine Location line number.
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113 | * @param pszFile Location file name.
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114 | * @param pszFunction Location function name.
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115 | * @remark This API exists in HC Ring-3 and GC.
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116 | */
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117 | RTDECL(void) AssertMsg1(const char *pszExpr, unsigned uLine, const char *pszFile, const char *pszFunction)
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118 | {
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119 | #if !defined(IN_RING3) && !defined(LOG_NO_COM)
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120 | RTLogComPrintf("\n!!Assertion Failed!!\n"
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121 | "Expression: %s\n"
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122 | "Location : %s(%d) %s\n",
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123 | pszExpr, pszFile, uLine, pszFunction);
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124 | #endif
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125 |
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126 | PRTLOGGER pLog = RTLogRelDefaultInstance();
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127 | if (pLog)
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128 | {
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129 | RTLogRelPrintf("\n!!Assertion Failed!!\n"
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130 | "Expression: %s\n"
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131 | "Location : %s(%d) %s\n",
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132 | pszExpr, pszFile, uLine, pszFunction);
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133 | #ifndef IN_RC /* flushing is done automatically in RC */
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134 | RTLogFlush(pLog);
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135 | #endif
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136 | }
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137 |
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138 | #ifndef LOG_ENABLED
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139 | if (!pLog)
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140 | #endif
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141 | {
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142 | pLog = RTLogDefaultInstance();
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143 | if (pLog)
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144 | {
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145 | RTLogPrintf("\n!!Assertion Failed!!\n"
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146 | "Expression: %s\n"
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147 | "Location : %s(%d) %s\n",
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148 | pszExpr, pszFile, uLine, pszFunction);
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149 | #ifndef IN_RC /* flushing is done automatically in RC */
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150 | RTLogFlush(pLog);
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151 | #endif
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152 | }
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153 | }
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154 |
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155 | #ifdef IN_RING3
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156 | /* print to stderr, helps user and gdb debugging. */
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157 | fprintf(stderr,
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158 | "\n!!Assertion Failed!!\n"
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159 | "Expression: %s\n"
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160 | "Location : %s(%d) %s\n",
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161 | VALID_PTR(pszExpr) ? pszExpr : "<none>",
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162 | VALID_PTR(pszFile) ? pszFile : "<none>",
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163 | uLine,
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164 | VALID_PTR(pszFunction) ? pszFunction : "");
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165 | fflush(stderr);
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166 | #endif
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167 |
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168 | RTStrPrintf(g_szRTAssertMsg1, sizeof(g_szRTAssertMsg1),
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169 | "\n!!Assertion Failed!!\n"
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170 | "Expression: %s\n"
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171 | "Location : %s(%d) %s\n",
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172 | pszExpr, pszFile, uLine, pszFunction);
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173 | }
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174 |
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175 |
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176 | /**
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177 | * The 2nd (optional) part of an assert message.
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178 | *
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179 | * @param pszFormat Printf like format string.
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180 | * @param ... Arguments to that string.
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181 | * @remark This API exists in HC Ring-3 and GC.
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182 | */
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183 | RTDECL(void) AssertMsg2(const char *pszFormat, ...)
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184 | {
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185 | va_list args;
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186 |
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187 | #if !defined(IN_RING3) && !defined(LOG_NO_COM)
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188 | va_start(args, pszFormat);
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189 | RTLogComPrintfV(pszFormat, args);
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190 | va_end(args);
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191 | #endif
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192 |
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193 | PRTLOGGER pLog = RTLogRelDefaultInstance();
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194 | if (pLog)
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195 | {
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196 | va_start(args, pszFormat);
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197 | RTLogRelPrintfV(pszFormat, args);
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198 | va_end(args);
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199 | #ifndef IN_RC /* flushing is done automatically in RC */
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200 | RTLogFlush(pLog);
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201 | #endif
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202 | }
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203 |
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204 | pLog = RTLogDefaultInstance();
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205 | if (pLog)
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206 | {
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207 | va_start(args, pszFormat);
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208 | RTLogPrintfV(pszFormat, args);
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209 | va_end(args);
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210 | #ifndef IN_RC /* flushing is done automatically in RC */
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211 | RTLogFlush(pLog);
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212 | #endif
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213 | }
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214 |
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215 | #ifdef IN_RING3
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216 | /* print to stderr, helps user and gdb debugging. */
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217 | char szMsg[1024];
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218 | va_start(args, pszFormat);
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219 | RTStrPrintfV(szMsg, sizeof(szMsg), pszFormat, args);
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220 | va_end(args);
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221 | fprintf(stderr, "%s", szMsg);
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222 | fflush(stderr);
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223 | #endif
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224 |
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225 | va_start(args, pszFormat);
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226 | RTStrPrintfV(g_szRTAssertMsg2, sizeof(g_szRTAssertMsg2), pszFormat, args);
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227 | va_end(args);
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228 | }
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229 |
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230 | #endif /* !IN_RING0 */
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231 |
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