src/game/WorldLog.h

   1 /*
   2  * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
   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  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 /// \addtogroup u2w
  20 /// @{
  21 /// \file
  22
  23 #ifndef MANGOS_WORLDLOG_H
  24 #define MANGOS_WORLDLOG_H
  25
  26 #include "Common.h"
  27 #include "Policies/Singleton.h"
  28 #include "Errors.h"
  29
  30 #include <stdarg.h>
  31
  32 /// %Log packets to a file
  33 class MANGOS_DLL_DECL WorldLog : public MaNGOS::Singleton<WorldLog, MaNGOS::ClassLevelLockable<WorldLog, ZThread::FastMutex> >
  34 {
  35     friend class MaNGOS::OperatorNew<WorldLog>;
  36     WorldLog() : i_file(NULL) { Initialize(); }
  37     WorldLog(const WorldLog &);
  38     WorldLog& operator=(const WorldLog &);
  39     typedef MaNGOS::ClassLevelLockable<WorldLog, ZThread::FastMutex>::Lock Guard;
  40
  41     /// Close the file in destructor
  42     ~WorldLog()
  43     {
  44         if( i_file != NULL )
  45             fclose(i_file);
  46         i_file = NULL;
  47     }
  48
  49     public:
  50         void Initialize();
  51         /// Is the world logger active?
  52         inline bool LogWorld(void) const { return (i_file != NULL); }
  53         /// %Log to the file
  54         inline void Log(char const *fmt, ...)
  55         {
  56             if( LogWorld() )
  57             {
  58                 Guard guard(*this);
  59                 ASSERT(i_file);
  60
  61                 va_list args;
  62                 va_start(args, fmt);
  63                 vfprintf(i_file, fmt, args);
  64                 va_end(args);
  65
  66                 fflush(i_file);
  67             }
  68         }
  69
  70     private:
  71         FILE *i_file;
  72 };
  73
  74 #define sWorldLog WorldLog::Instance()
  75 #endif
  76 /// @}