nux-0.9.46

NuxCore/StreamBuffer.h

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00001 /*
00002  * Copyright 2010 Inalogic® Inc.
00003  *
00004  * This program is free software: you can redistribute it and/or modify it
00005  * under the terms of the GNU Lesser General Public License, as
00006  * published by the  Free Software Foundation; either version 2.1 or 3.0
00007  * of the License.
00008  *
00009  * This program is distributed in the hope that it will be useful, but
00010  * WITHOUT ANY WARRANTY; without even the implied warranties of
00011  * MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
00012  * PURPOSE.  See the applicable version of the GNU Lesser General Public
00013  * License for more details.
00014  *
00015  * You should have received a copy of both the GNU Lesser General Public
00016  * License along with this program. If not, see <http://www.gnu.org/licenses/>
00017  *
00018  * Authored by: Jay Taoko <jaytaoko@inalogic.com>
00019  *
00020  */
00021 
00022 
00023 #ifndef NSTREAMBUFFER_H
00024 #define NSTREAMBUFFER_H
00025 
00026 #include <streambuf>
00027 
00028 namespace nux
00029 {
00030   class NStreamBuffer : public std::streambuf
00031   {
00032   public:
00033     NStreamBuffer (const BYTE *begin, const BYTE *end);
00034     explicit NStreamBuffer (const BYTE *str, int size);
00035 
00036     ~NStreamBuffer();
00037 
00038   private:
00039     int_type uflow();
00040     int_type underflow();
00041     int_type pbackfail (int_type ch);
00042     std::streamsize showmanyc();
00043 
00044     // copy ctor and assignment not implemented;
00045     // copying not allowed
00046     NStreamBuffer (const NStreamBuffer &);
00047     NStreamBuffer &operator= (const NStreamBuffer &);
00048 
00049   private:
00050     const BYTE *const begin_;
00051     const BYTE *const end_;
00052     const BYTE *current_;
00053   };
00054 
00055 }
00056 
00057 #endif // NSTREAMBUFFER_H