Claw  1.7.3
log_stream_uniq.hpp
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1 /*
2  CLAW - a C++ Library Absolutely Wonderful
3 
4  CLAW is a free library without any particular aim but being useful to
5  anyone.
6 
7  Copyright (C) 2005-2011 Julien Jorge
8 
9  This library is free software; you can redistribute it and/or
10  modify it under the terms of the GNU Lesser General Public
11  License as published by the Free Software Foundation; either
12  version 2.1 of the License, or (at your option) any later version.
13 
14  This library is distributed in the hope that it will be useful,
15  but WITHOUT ANY WARRANTY; without even the implied warranty of
16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  Lesser General Public License for more details.
18 
19  You should have received a copy of the GNU Lesser General Public
20  License along with this library; if not, write to the Free Software
21  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 
23  contact: julien.jorge@gamned.org
24 */
30 #ifndef __CLAW_LOG_STREAM_UNIQ_HPP__
31 #define __CLAW_LOG_STREAM_UNIQ_HPP__
32 
33 #include <string>
34 #include <claw/log_stream.hpp>
35 
36 #ifndef CLAW_LOGGER_EXPORT
37 # ifdef CLAW_LOGGER_NO_EXPORT
38 # define CLAW_LOGGER_EXPORT
39 # else
40 # ifdef _WIN32
41 # ifdef claw_logger_EXPORTS
42 # define CLAW_LOGGER_EXPORT __declspec(dllexport)
43 # else
44 # define CLAW_LOGGER_EXPORT __declspec(dllimport)
45 # endif // def claw_logger_EXPORTS
46 # else // def _WIN32
47 # define CLAW_LOGGER_EXPORT
48 # endif // def _WIN32
49 # endif // def CLAW_LOGGER_NO_EXPORT
50 #endif // ndef CLAW_LOGGER_EXPORT
51 
52 namespace claw
53 {
58  class CLAW_LOGGER_EXPORT log_stream_uniq:
59  public log_stream,
61  {
62  public:
63  explicit log_stream_uniq( log_stream* s );
64  virtual ~log_stream_uniq();
65 
66  virtual void write( const std::string& str );
67  virtual void flush();
68 
69  private:
70  void output_current_line();
71 
72  private:
74  log_stream* m_stream;
75 
77  std::string m_current_line;
78 
80  std::string m_previous_line;
81 
83  std::size_t m_repetition_count;
84 
85  }; // class log_stream_uniq
86 } // namespace claw
87 
88 #endif // __CLAW_LOG_STREAM_UNIQ_HPP__