c++/io/FilterInputStream.h

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00001 /*
00002  * Copyright (c) 2004 Beeyond Software Holding BV
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  *
00009  * This library 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 GNU
00012  * Lesser General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Lesser General Public
00015  * License along with this library; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017  */
00018 
00023 #ifndef _CLASS_FILTERINPUTSTREAM_H
00024 #define _CLASS_FILTERINPUTSTREAM_H
00025 
00026 #ifdef __cplusplus
00027 
00028 #include "beecrypt/c++/mutex.h"
00029 using beecrypt::mutex;
00030 #include "beecrypt/c++/io/InputStream.h"
00031 using beecrypt::io::InputStream;
00032 
00033 namespace beecrypt {
00034     namespace io {
00037         class BEECRYPTCXXAPI FilterInputStream : public InputStream
00038         {
00039         private:
00040             mutex _lock;
00041 
00042         protected:
00043             InputStream& in;
00044 
00045         public:
00046             FilterInputStream(InputStream& in);
00047             virtual ~FilterInputStream();
00048 
00049             virtual off_t available() throw (IOException);
00050             virtual void close() throw (IOException);
00051             virtual void mark(off_t) throw ();
00052             virtual bool markSupported() throw ();
00053             virtual int read() throw (IOException);
00054             virtual int read(byte* data, size_t offset, size_t length) throw (IOException);
00055             virtual int read(bytearray& b) throw (IOException);
00056             virtual void reset() throw (IOException);
00057             virtual off_t skip(off_t) throw (IOException);
00058         };
00059     }
00060 }
00061 
00062 #endif
00063 
00064 #endif

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