/usr/include/casacore/casa/IO/ByteSinkSource.h is in casacore-dev 2.2.0-2.
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//# Copyright (C) 1996,1999
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef CASA_BYTESINKSOURCE_H
#define CASA_BYTESINKSOURCE_H
#include <casacore/casa/aips.h>
#include <casacore/casa/IO/ByteSink.h>
#include <casacore/casa/IO/ByteSource.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
class TypeIO;
// <summary>Class for read/write access to data in a given format.</summary>
// <use visibility=export>
// <reviewed reviewer="Friso Olnon" date="1996/11/06" tests="tByteSinkSource" demos="">
// </reviewed>
// <prerequisite>
// <li> <linkto class=ByteSink>ByteSink</linkto> class
// <li> <linkto class=ByteSource>ByteSource</linkto> class
// <li> <linkto class=TypeIO>TypeIO</linkto> class and derived classes
// </prerequisite>
// <etymology>
// This class combines ByteSink and ByteSource.
// </etymology>
// <synopsis>
// ByteSinkSource provides read/write access to a typed byte stream in the
// Casacore IO framework. It is derived from the classes <src>ByteSink</src>
// and <src>ByteSource</src>, so it combines their functionality.
// <p>
// The object is constructed using a typed byte stream. This stream
// is an instance of a class derived from class
// <linkto class=TypeIO>TypeIO</linkto>. This makes it possible to
// store the data in any format (e.g. CanonicalIO or RawIO).
// <br> In its turn TypeIO uses an instance of a class derived from class
// <linkto class=ByteIO>ByteIO</linkto>. This makes it possible to
// use any output stream (e.g. file, memory).
// </synopsis>
// <example>
// <srcblock>
// main
// {
// Bool valb = True;
// RegularFileIO regularFileIO ("test.dat", ByteIO::New);
// CanonicalIO canonicalIO(®ularFileIO);
// ByteSinkSource sinkSource(&canonicalIO);
// sinkSource << valb; // Write a boolean
// sinkSource.seek (0); // Reset to begin of IO stream
// sinkSource >> valb; // Read a boolean
// cout << valb << endl; // Print the boolean
// }
// </srcblock>
// </example>
// <motivation>
// This class makes it transparant to do IO with different devices and
// in different ways.
// </motivation>
class ByteSinkSource: public ByteSink, public ByteSource
{
public:
// Default constructor.
// This creates an invalid object, but is present for convenience.
ByteSinkSource();
// Construct from given TypeIO object. The constructor does not copy the
// object, but only keeps a pointer to it. If takeOver is true the this
// class will delete the supplied pointer. Otherwise the caller is
// responsible for this.
ByteSinkSource (TypeIO* typeIO, Bool takeOver=False);
// The copy constructor uses reference semantics
ByteSinkSource (const ByteSinkSource& sinkSource);
// The assignment operator uses reference semantics
ByteSinkSource& operator= (const ByteSinkSource& sinkSource);
~ByteSinkSource();
};
} //# NAMESPACE CASACORE - END
#endif
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