MTSLog.h

00001 #ifndef MTSLOG_H
00002 #define MTSLOG_H
00003 
00004 #include <string>
00005 
00006 inline const char* className(const std::string& prettyFunction)
00007 {
00008     size_t colons = prettyFunction.find_last_of("::");
00009     if (colons == std::string::npos)
00010         return "";
00011     size_t begin = prettyFunction.substr(0,colons).rfind(" ") + 1;
00012     size_t end = colons - begin;
00013 
00014     return prettyFunction.substr(begin,end).c_str();
00015 }
00016 
00017 #define __CLASSNAME__ className(__PRETTY_FUNCTION__)
00018 
00019 #ifdef MTS_TIMESTAMP_LOG
00020 #define __LOG__(logLevel, format, ...)                                   \
00021     mts::MTSLog::printMessage(logLevel, "%s| [%s] " format "\r\n", \
00022                               mts::MTSLog::getTime().c_str(), mts::MTSLog::getLogLevelString(logLevel), ##__VA_ARGS__)
00023 #else
00024 #define __LOG__(logLevel, format, ...)                                   \
00025     mts::MTSLog::printMessage(logLevel, "[%s] " format "\r\n", mts::MTSLog::getLogLevelString(logLevel), ##__VA_ARGS__)
00026 #endif
00027 
00028 #ifdef MTS_DEBUG
00029 #define logFatal(format, ...) \
00030     mts::MTSLog::printMessage(mts::MTSLog::FATAL_LEVEL, "%s:%s:%d| [%s] " format "\r\n", __CLASSNAME__, __func__, __LINE__, mts::MTSLog::FATAL_LABEL, ##__VA_ARGS__)
00031 #define logError(format, ...) \
00032     mts::MTSLog::printMessage(mts::MTSLog::ERROR_LEVEL, "%s:%s:%d| [%s] " format "\r\n", __CLASSNAME__, __func__, __LINE__, mts::MTSLog::ERROR_LABEL, ##__VA_ARGS__)
00033 #define logWarning(format, ...) \
00034     mts::MTSLog::printMessage(mts::MTSLog::WARNING_LEVEL, "%s:%s:%d| [%s] " format "\r\n", __CLASSNAME__, __func__, __LINE__, mts::MTSLog::WARNING_LABEL, ##__VA_ARGS__)
00035 #define logInfo(format, ...) \
00036     mts::MTSLog::printMessage(mts::MTSLog::INFO_LEVEL, "%s:%s:%d| [%s] " format "\r\n", __CLASSNAME__, __func__, __LINE__, mts::MTSLog::INFO_LABEL, ##__VA_ARGS__)
00037 #define logDebug(format, ...) \
00038     mts::MTSLog::printMessage(mts::MTSLog::DEBUG_LEVEL, "%s:%s:%d| [%s] " format "\r\n", __CLASSNAME__, __func__, __LINE__, mts::MTSLog::DEBUG_LABEL, ##__VA_ARGS__)
00039 #define logTrace(format, ...) \
00040     mts::MTSLog::printMessage(mts::MTSLog::TRACE_LEVEL, "%s:%s:%d| [%s] " format "\r\n", __CLASSNAME__, __func__, __LINE__, mts::MTSLog::TRACE_LABEL, ##__VA_ARGS__)
00041 #elif defined(MTS_DEBUG_OFF)
00042 #define logFatal(...)
00043 #define logError(...)
00044 #define logWarning(...)
00045 #define logInfo(...)
00046 #define logDebug(...)
00047 #define logTrace(...)
00048 #else
00049 #define logFatal(format, ...) \
00050     __LOG__(mts::MTSLog::FATAL_LEVEL, format, ##__VA_ARGS__)
00051 #define logError(format, ...) \
00052     __LOG__(mts::MTSLog::ERROR_LEVEL, format, ##__VA_ARGS__)
00053 #define logWarning(format, ...) \
00054     __LOG__(mts::MTSLog::WARNING_LEVEL, format, ##__VA_ARGS__)
00055 #define logInfo(format, ...) \
00056     __LOG__(mts::MTSLog::INFO_LEVEL, format, ##__VA_ARGS__)
00057 #define logDebug(format, ...) \
00058     __LOG__(mts::MTSLog::DEBUG_LEVEL, format, ##__VA_ARGS__)
00059 #define logTrace(format, ...) \
00060     __LOG__(mts::MTSLog::TRACE_LEVEL, format, ##__VA_ARGS__)
00061 #endif
00062 
00063 namespace mts {
00064 
00065 class MTSLog
00066 {
00067 public:
00068 
00069     /** Enum of log levels.
00070      */
00071     enum logLevel {
00072         NONE_LEVEL = 0,
00073         FATAL_LEVEL = 1,
00074         ERROR_LEVEL = 2,
00075         WARNING_LEVEL = 3,
00076         INFO_LEVEL = 4,
00077         DEBUG_LEVEL = 5,
00078         TRACE_LEVEL = 6
00079     };
00080 
00081     /** Print log message.
00082      */
00083     static void printMessage(int level, const char* format, ...);
00084 
00085     /** Determine if the given level is currently printable.
00086      */
00087     static bool printable(int level);
00088 
00089     /** Set log level
00090      * Messages with lower priority than the current level will not be printed.
00091      * If the level is set to NONE, no messages will print.
00092      */
00093     static void setLogLevel(int level);
00094 
00095     /** Get the current log level.
00096      */
00097     static int getLogLevel();
00098 
00099     /** Get string representation of the current log level.
00100      */
00101     static const char* getLogLevelString();
00102     static const char* getLogLevelString(int level);
00103 
00104     /** Get a formatted time string as HH:MM:SS
00105      */
00106     static std::string getTime();
00107 
00108     static const char* NONE_LABEL;
00109     static const char* FATAL_LABEL;
00110     static const char* ERROR_LABEL;
00111     static const char* WARNING_LABEL;
00112     static const char* INFO_LABEL;
00113     static const char* DEBUG_LABEL;
00114     static const char* TRACE_LABEL;
00115 
00116 private:
00117 
00118     /** Constructor
00119      */
00120     MTSLog();
00121 
00122     static int currentLevel;
00123 
00124 };
00125 
00126 }
00127 
00128 #endif