Standard Portable Library: spl/io/DualChannelStream.h Source File

00001 /*
00002  *   This file is part of the Standard Portable Library (SPL).
00003  *
00004  *   SPL is free software: you can redistribute it and/or modify
00005  *   it under the terms of the GNU General Public License as published by
00006  *   the Free Software Foundation, either version 3 of the License, or
00007  *   (at your option) any later version.
00008  *
00009  *   SPL is distributed in the hope that it will be useful,
00010  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *   GNU General Public License for more details.
00013  *
00014  *   You should have received a copy of the GNU General Public License
00015  *   along with SPL.  If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 #ifndef _dualchannelstream_h
00018 #define _dualchannelstream_h
00019 
00020 #include <spl/io/Stream.h>
00021 
00028 class DualChannelStream;
00029 typedef RefCountPtrCast<DualChannelStream, spl::IStream, spl::IStreamPtr> DualChannelStreamPtr;
00030 typedef WeakReference<DualChannelStream, spl::IStreamPtr> DualChannelStreamRef;
00031 
00032 REGISTER_TYPEOF(86, DualChannelStreamPtr);
00033 REGISTER_TYPEOF( 451, DualChannelStreamRef );
00034 
00038 class DualChannelStream : public spl::IStream
00039 {
00040 protected:
00041         spl::IStreamPtr m_in;
00042         spl::IStreamPtr m_out;
00043 
00044 public:
00045         DualChannelStream(spl::IStreamPtr input, spl::IStreamPtr output, bool canClose = false);
00046         virtual ~DualChannelStream();
00047 
00048         virtual void Close();
00049         virtual void Flush();
00050         virtual int Read(Array<byte>& buffer, const int offset, int count);
00051         virtual int ReadByte();
00052         virtual long Seek(const long offset, const SeekOrigin origin);
00053         virtual void Write(const Array<byte>& buffer, const int offset, const int count);
00054         virtual void WriteByte(byte value);
00055 
00056         virtual bool CanRead() const;
00057         virtual bool CanSeek() const;
00058         virtual bool CanWrite() const;
00059 
00060         virtual long Length() const;
00061         virtual long Position() const;
00062 
00063 #ifdef DEBUG
00064         virtual void ValidateMem() const;
00065         virtual void CheckMem() const;
00066 #endif
00067 };
00068 
00069 REGISTER_TYPEOF(88, DualChannelStream);
00070 
00073 #endif