/usr/include/Poco/TeeStream.h is in libpoco-dev 1.3.6p1-5+deb8u1.
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// TeeStream.h
//
// $Id: //poco/1.3/Foundation/include/Poco/TeeStream.h#1 $
//
// Library: Foundation
// Package: Streams
// Module: TeeStream
//
// Definition of the TeeStream class.
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#ifndef Foundation_TeeStream_INCLUDED
#define Foundation_TeeStream_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/UnbufferedStreamBuf.h"
#include <vector>
#include <istream>
#include <ostream>
namespace Poco {
class Foundation_API TeeStreamBuf: public UnbufferedStreamBuf
/// This stream buffer copies all data written to or
/// read from it to one or multiple output streams.
{
public:
TeeStreamBuf();
/// Creates an unconnected CountingStreamBuf.
/// Use addStream() to attach output streams.
TeeStreamBuf(std::istream& istr);
/// Creates the CountingStreamBuf and connects it
/// to the given input stream.
TeeStreamBuf(std::ostream& ostr);
/// Creates the CountingStreamBuf and connects it
/// to the given output stream.
~TeeStreamBuf();
/// Destroys the CountingStream.
void addStream(std::ostream& ostr);
/// Adds the given output stream.
protected:
int readFromDevice();
int writeToDevice(char c);
private:
typedef std::vector<std::ostream*> StreamVec;
std::istream* _pIstr;
StreamVec _streams;
};
class Foundation_API TeeIOS: public virtual std::ios
/// The base class for TeeInputStream and TeeOutputStream.
///
/// This class is needed to ensure the correct initialization
/// order of the stream buffer and base classes.
{
public:
TeeIOS();
/// Creates the basic stream and leaves it unconnected.
TeeIOS(std::istream& istr);
/// Creates the basic stream and connects it
/// to the given input stream.
TeeIOS(std::ostream& ostr);
/// Creates the basic stream and connects it
/// to the given output stream.
~TeeIOS();
/// Destroys the stream.
void addStream(std::ostream& ostr);
/// Adds the given output stream.
TeeStreamBuf* rdbuf();
/// Returns a pointer to the underlying streambuf.
protected:
TeeStreamBuf _buf;
};
class Foundation_API TeeInputStream: public TeeIOS, public std::istream
/// This stream copies all characters read through it
/// to one or multiple output streams.
{
public:
TeeInputStream(std::istream& istr);
/// Creates the TeeInputStream and connects it
/// to the given input stream.
~TeeInputStream();
/// Destroys the TeeInputStream.
};
class Foundation_API TeeOutputStream: public TeeIOS, public std::ostream
/// This stream copies all characters written to it
/// to one or multiple output streams.
{
public:
TeeOutputStream();
/// Creates an unconnected TeeOutputStream.
TeeOutputStream(std::ostream& ostr);
/// Creates the TeeOutputStream and connects it
/// to the given input stream.
~TeeOutputStream();
/// Destroys the TeeOutputStream.
};
} // namespace Poco
#endif // Foundation_TeeStream_INCLUDED
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