paludis  Version 1.4.2
tail_output_stream.hh
1 /* vim: set sw=4 sts=4 et foldmethod=syntax : */
2 
3 /*
4  * Copyright (c) 2008, 2010, 2011 Ciaran McCreesh
5  *
6  * This file is part of the Paludis package manager. Paludis is free software;
7  * you can redistribute it and/or modify it under the terms of the GNU General
8  * Public License version 2, as published by the Free Software Foundation.
9  *
10  * Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
11  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
13  * details.
14  *
15  * You should have received a copy of the GNU General Public License along with
16  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
17  * Place, Suite 330, Boston, MA 02111-1307 USA
18  */
19 
20 #ifndef PALUDIS_GUARD_PALUDIS_UTIL_TAIL_OUTPUT_STREAM_HH
21 #define PALUDIS_GUARD_PALUDIS_UTIL_TAIL_OUTPUT_STREAM_HH 1
22 
23 #include <paludis/util/tail_output_stream-fwd.hh>
25 #include <paludis/util/pimp.hh>
26 #include <paludis/util/sequence.hh>
27 #include <memory>
28 #include <ostream>
29 
30 namespace paludis
31 {
33  public std::streambuf
34  {
35  private:
37 
38  void _append(const std::string &);
39 
40  protected:
41  virtual int_type
42  overflow(int_type c);
43 
44  virtual std::streamsize
45  xsputn(const char * s, std::streamsize num);
46 
47  public:
48  TailOutputStreamBuf(const unsigned n);
50 
51  const std::shared_ptr<const Sequence<std::string> > tail(const bool clear);
52  };
53 
55  {
56  protected:
58 
59  public:
60  TailOutputStreamBase(const unsigned n) :
61  buf(n)
62  {
63  }
64  };
65 
67  protected TailOutputStreamBase,
68  public std::ostream
69  {
70  public:
71  ///\name Basic operations
72  ///\{
73 
74  TailOutputStream(const unsigned n) :
76  std::ostream(&buf)
77  {
78  }
79 
80  const std::shared_ptr<const Sequence<std::string> > tail(const bool clear_after)
81  {
82  return buf.tail(clear_after);
83  }
84 
85  ///\}
86  };
87 
88  extern template class Pimp<TailOutputStreamBuf>;
89 }
90 
91 #endif
Definition: pimp.hh:51
Definition: tail_output_stream.hh:66
Definition: tail_output_stream.hh:54
Definition: tail_output_stream.hh:32
#define PALUDIS_VISIBLE
Definition: attributes.hh:71