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log_stream.hpp

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00001 /*
00002   CLAW - a C++ Library Absolutely Wonderful
00003 
00004   CLAW is a free library without any particular aim but being useful to 
00005   anyone.
00006 
00007   Copyright (C) 2005-2008 Julien Jorge
00008 
00009   This library is free software; you can redistribute it and/or
00010   modify it under the terms of the GNU Lesser General Public
00011   License as published by the Free Software Foundation; either
00012   version 2.1 of the License, or (at your option) any later version.
00013 
00014   This library is distributed in the hope that it will be useful,
00015   but WITHOUT ANY WARRANTY; without even the implied warranty of
00016   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017   Lesser General Public License for more details.
00018 
00019   You should have received a copy of the GNU Lesser General Public
00020   License along with this library; if not, write to the Free Software
00021   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00022 
00023   contact: julien_jorge@yahoo.fr
00024 */
00030 #ifndef __CLAW_LOG_STREAM_HPP__
00031 #define __CLAW_LOG_STREAM_HPP__
00032 
00033 #include <string>
00034 #include <fstream>
00035 #include <claw/non_copyable.hpp>
00036 
00037 #ifndef CLAW_LOGGER_EXPORT
00038 #  ifdef _WIN32
00039 #    ifdef claw_logger_EXPORTS
00040 #      define CLAW_LOGGER_EXPORT __declspec(dllexport)
00041 #    else
00042 #      define CLAW_LOGGER_EXPORT __declspec(dllimport)
00043 #    endif // def claw_logger_EXPORTS
00044 #  else // def _WIN32
00045 #    define CLAW_LOGGER_EXPORT
00046 #  endif // def _WIN32
00047 #endif // ndef CLAW_LOGGER_EXPORT
00048 
00049 namespace claw
00050 {
00055   class CLAW_LOGGER_EXPORT log_stream
00056   {
00057   public:
00058     virtual ~log_stream();
00059     virtual void write( const std::string& str ) = 0;
00060     virtual void flush();
00061   }; // class log_stream
00062 
00067   class CLAW_LOGGER_EXPORT console_logger
00068     : public log_stream,
00069       public claw::concept::non_copyable
00070   {
00071   public:
00072     virtual void write( const std::string& str );
00073     virtual void flush();
00074   }; // class console_logger
00075 
00080   class CLAW_LOGGER_EXPORT file_logger
00081     : public log_stream,
00082       public claw::concept::non_copyable
00083   {
00084   public:
00085     file_logger( const std::string& filename );
00086     virtual ~file_logger();
00087 
00088     virtual void write( const std::string& str );
00089     virtual void flush();
00090 
00091   private:
00093     std::ofstream* m_file;
00094 
00095   }; // class file_logger
00096 } // namespace claw
00097 
00098 #endif // __CLAW_LOG_STREAM_HPP__

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