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annotate Utils/Log.h @ 2:177f640940f2

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Update exception class and cleanup redifinitions During firmware download and exception caused the application to stop. Rootcause was the defference between QT5 and QT6 exception and string handling which is updated now. In addition some old definitions were removed to avoid compiler warnings.
author Ideenmodellierer
date Fri, 28 Nov 2025 19:57:35 +0100
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children
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1
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1 //////////////////////////////////////////////////////////////////////////////
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2 /// \file Log.h
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3 /// \brief Basic logging tool
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4 /// \author JD Gascuel.
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5 /// \copyright (c) 2011-2016 JD Gascuel. All rights reserved.
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6 /// $Id$
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7 //////////////////////////////////////////////////////////////////////////////
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8 //
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9 // BSD 2-Clause License:
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10 //
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11 // Redistribution and use in source and binary forms, with or without
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12 // modification, are permitted provided that the following conditions
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13 // are met:
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14 //
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15 // 1. Redistributions of source code must retain the above copyright notice,
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16 // this list of conditions and the following disclaimer.
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17 //
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18 // 2. Redistributions in binary form must reproduce the above copyright notice,
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19 // this list of conditions and the following disclaimer in the documentation
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20 // and/or other materials provided with the distribution.
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21 //
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22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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23 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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24 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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25 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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26 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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27 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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28 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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29 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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30 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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31 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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32 // THE POSSIBILITY OF SUCH DAMAGE.
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33 //
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34 //////////////////////////////////////////////////////////////////////////////
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35 // HISTORY
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36 // 2013-07-01 jDG: Creation.
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37 // 2016-05-24 jDG: BSD-2 version.
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38
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39 #ifndef LOG_H
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40 #define LOG_H
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41
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42 #include <QString>
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43 #include <QStringList>
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44 #include <QByteArray>
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45
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46 //class QStringList;
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47 //class QByteArray;
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48
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49 #define LOG_MAX_MESSAGE_LENGTH 2048
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50
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51 //////////////////////////////////////////////////////////////////////////////
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52 /// \brief Basic logging tool
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53 ///
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54 ///
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55 /// Provides easy and centralized log messages for the application.
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56 /// Typical usage:
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57 /// \code
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58 /// main(int argc, char* argv[])
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59 /// {
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60 /// Log::autoLoad(argc, argv); // Read XML configuration.
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61 /// LOG_TRACE("... "); // Just a tick where we are.
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62 ///
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63 /// LOG_INFO("Main started"); // Visible message (users can see it).
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64 /// LOG_TRACE("Now argc=" << argc);
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65 /// LOG_TRACE("Invisible message, only for log files");
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66 /// LOG_DEBUG("Invisible, and logged only if run with a "-d" argument");
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67 /// }
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68 /// \endcode
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69 ///
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70 /// \note that message destination can be multiple, and are the responsability
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71 /// of the LogAppender class hierarchy.
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72 ///
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73 /// \sa LogAppender, LogConsole, LogFile.
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74 class Log
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75 {
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76 /// Application's reference.
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77 static QString _applicationPath;
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78 static QString _applicationName;
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79
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80 public:
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81 //////////////////////////////////////////////////////////////////////////
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82 /// \{
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83 /// \name Record message and context
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84
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85 //------------------------------------------------------------------------
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86 /// \brief Log level: severity scale.
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87 enum Level {
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88 LEVEL_NOERROR = 0,
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89 LEVEL_DEBUG, ///< The most verbose one, used only during debug session.
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90 LEVEL_TRACE, ///< Messages to be put in silent log files, for post-mortem analysis.
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91 LEVEL_INFO, ///< General information send to the final user.
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92 LEVEL_WARNING, ///< Error reported to the user (eg. with a Qt warning box. \sa LogAppenderWindow).
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93 LEVEL_THROW, ///< Error that is mean to be catched, and corrected automatically.
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94 LEVEL_ERROR ///< Fatal error that cannot be recovered. The program should halt.
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95 };
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96
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97 //------------------------------------------------------------------------
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98 const Level level; ///< Event's log level.
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99 const QString file; ///< Source file that fired the log event.
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100 const int line; ///< Source line that fired the log event.
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101 const QString function; ///< Function (and class) that fired the event.
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102 QString message; ///< The log message itself.
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103
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104 /// \}
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105 //////////////////////////////////////////////////////////////////////////
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106 /// \{
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107 /// \name Global services
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108
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109 //------------------------------------------------------------------------
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110 /// \brief Minimal error level to log.
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111 ///
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112 /// Defaults to LEVEL_TRACE.
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113 static Level minLevel;
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114
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115 //------------------------------------------------------------------------
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116 /// \brief Initialize the log system, by loading some XML config.
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117 ///
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118 /// Might be used to change logging configuration of installed
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119 /// applications.
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120 //------------------------------------------------------------------------
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121 /// Initialize the log system, by loading some XML config.
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122 static void autoLoad(int argc, char *argv[]);
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123
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124 //------------------------------------------------------------------------
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125 /// \brief Initialize the log system, without configurations.
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126 ///
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127 /// Then one can instanciate LogAppender classes in a static way.
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128 static void init(int& argc, char* argv[]);
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129
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130 //------------------------------------------------------------------------
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131 /// \brief End the log systems, closing all appenders.
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132 static void close();
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133
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134 //------------------------------------------------------------------------
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135 /// \brief Utility to retrieve where the executable was installed.
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136 static inline QString applicationPath();
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137
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138 /// \brief Utility to retrieve the executable's name.
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139 static inline QString applicationName();
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140
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141 /// \}
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142
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143 protected:
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144 /// \brief Constructor
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145 ///
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146 /// All message are to be created by a LogAction instance, responsible
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147 /// to build-up the message, and to send it to LogAppender instances.
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148 Log(Level level, const char *file, int line, const char *function);
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149 };
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150
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151 inline QString Log::applicationPath() { return _applicationPath; }
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152 inline QString Log::applicationName() { return _applicationName; }
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153
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154 //////////////////////////////////////////////////////////////////////////////
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155 /// \brief Creates a Log event.
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156 ///
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157 /// Uses object's destructor to send the Log into all registered log appenders.
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158 class LogAction
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159 : public Log
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160 {
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161 public:
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162 /// Starts a log line, with timestamp and source-stamp.
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163 LogAction(Level level, const char* file, int line, const char* function);
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164
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165 /// Finish (and print) a log line.
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166 ~LogAction();
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167
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168 /// Appends a single char to the log line.
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169 LogAction& operator<<(char msg);
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170 /// Appends a single char to the log line.
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171 LogAction& operator<<(unsigned char msg);
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172
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173 /// Appends a C string to the log line.
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174 LogAction& operator<<(const char* msg);
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175 /// Appends a Qt's wide-char string to the log line, converted to Latin1.
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176 LogAction& operator<<(const QString& msg);
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177 /// Appends a list of Qt's wide-char strings.
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178 LogAction& operator<<(const QStringList& msg);
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179 /// Appends a Qt's single-byte-string to the log line.
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180 LogAction& operator<<(const QByteArray& msg);
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181
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182 /// Appends a float/double to the log line.
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183 LogAction& operator<<(double value);
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184 /// Appends a signed int/short/byte to the log line.
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185 LogAction& operator<<(int value);
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186 /// Appends an unsigned int/short/byte to the log line.
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187 LogAction& operator<<(unsigned int value);
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188
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189 // Resole ambiguities for the C++ compiler.
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190 /// Appends a signed long to the log line.
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191 LogAction& operator<<(long value);
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192 /// Appends an unsigned long to the log line.
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193 LogAction& operator<<(unsigned long value);
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194 /// Appends a signed long long to the log line.
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195 LogAction& operator<<(long long value);
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196 /// Appends an unsigned long long to the log line.
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197 LogAction& operator<<(unsigned long long value);
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198
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199 /// Print any pointer as an Hex address:
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200 LogAction& operator<<(const void* ptr);
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201 };
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202
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203 #ifndef LOG_FUNCTION_
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204 # if defined __PRETTY_FUNCTION__
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205 # define LOG_FUNCTION_ __PRETTY_FUNCTION__
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206 # elif defined __FUNCSIG__
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207 # define LOG_FUNCTION_ __FUNCSIG__
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208 # elif defined __FUNCTION__
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209 # define LOG_FUNCTION_ __FUNCTION__
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210 # elif defined __func__
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211 # define LOG_FUNCTION_ __func__
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212 # elif defined LINUX
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213 # define LOG_FUNCTION_ __PRETTY_FUNCTION__
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214 # else
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215 # define LOG_FUNCTION_ __FILE__
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216 # endif
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217 #endif
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218
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219 #define LOG_DEBUG(msg) do { if( Log::minLevel <= Log::LEVEL_DEBUG ) LogAction(Log::LEVEL_DEBUG, __FILE__, __LINE__, LOG_FUNCTION_ ) << msg; } while(0)
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220 #define LOG_TRACE(msg) do { if( Log::minLevel <= Log::LEVEL_TRACE ) LogAction(Log::LEVEL_TRACE, __FILE__, __LINE__, LOG_FUNCTION_ ) << msg; } while(0)
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221 #define LOG_INFO(msg) do { if( Log::minLevel <= Log::LEVEL_INFO ) LogAction(Log::LEVEL_INFO, __FILE__, __LINE__, LOG_FUNCTION_ ) << msg; } while(0)
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222 #define LOG_WARNING(msg) do { if( Log::minLevel <= Log::LEVEL_WARNING) LogAction(Log::LEVEL_WARNING, __FILE__, __LINE__, LOG_FUNCTION_ ) << msg; } while(0)
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223 #define LOG_ERROR(msg) do { if( Log::minLevel <= Log::LEVEL_ERROR ) LogAction(Log::LEVEL_ERROR, __FILE__, __LINE__, LOG_FUNCTION_ ) << msg; } while(0)
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224
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225 #include <sstream> // Für std::ostringstream
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226 #include "Exception.h"
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227
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228 // Hilfsmakros für stringification
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229 #define STRINGIFY(x) #x
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230 #define TOSTRING(x) STRINGIFY(x)
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231
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232 #define LOG_THROW_E(EXCEPTION, msg) \
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233 do { \
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234 LogAction log(Log::LEVEL_THROW, __FILE__, __LINE__, LOG_FUNCTION_ ); \
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235 log << msg; \
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236 throw EXCEPTION(log.message); \
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237 } while(0)
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238
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239 #define LOG_THROW(msg) \
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240 do { \
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241 LogAction log(Log::LEVEL_THROW, __FILE__, __LINE__, LOG_FUNCTION_ ); \
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242 log << msg; \
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243 throw ::Exception(log.message); \
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244 } while(0)
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245
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246 #define assert(e) \
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247 do { if( !(e) ) \
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248 LOG_THROW("Assert: " #e); \
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249 } while(0)
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250
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251 #endif // LOG_H