LogFile.h

   1 /*
   2  * Copyright (c) 2002, Robert Collins..
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins <rbtcollins@hotmail.com>
  13  *
  14  */
  15
  16 #ifndef SETUP_LOGFILE_H
  17 #define SETUP_LOGFILE_H
  18
  19 #include "LogSingleton.h"
  20 #include <sstream>
  21
  22 // Logging class. Default logging level is PLAIN.
  23 class LogFile : public LogSingleton {
  24 public:
  25   static LogFile *createLogFile();
  26   LogFile();
  27   void clearFiles(); // delete all target filenames
  28   void setFile (int minlevel, const std::string& path, bool append);
  29   std::string getFileName (int level) const;
  30
  31   static void setExitMsg (int msg) { exit_msg = msg; }
  32   static int getExitMsg () { return exit_msg; }
  33
  34   /* Some platforms don't call destructors. So this call exists
  35    * which guarantees to flush any log data...
  36    * but doesn't call generic C++ destructors
  37    */
  38   virtual void exit (int exit_code, bool show_end_install_msg = true)
  39           __attribute__ ((noreturn));
  40   virtual void flushAll ();
  41   virtual ~LogFile();
  42   // get a specific verbosity stream.
  43   virtual std::ostream &operator() (enum log_level level);
  44
  45 protected:
  46   LogFile(std::stringbuf *aStream);
  47   LogFile (LogFile const &); // no copy constructor
  48   LogFile &operator = (LogFile const&); // no assignment operator
  49   virtual void endEntry(); // the current in-progress entry is complete.
  50   static int exit_msg;
  51 private:
  52   void log_save (int babble, const std::string& filename, bool append);
  53 };
  54
  55 #define Logger() ((LogFile &) LogSingleton::GetInstance ())
  56 #endif /* SETUP_LOGFILE_H */