[pclasses-cvs] pclasses2/include/pclasses/IO StringDevice.h,NONE,1.1

[stephan b. <sg...@us...>]

Update of /cvsroot/pclasses/pclasses2/include/pclasses/IO
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv6900/include/pclasses/IO

Added Files:
	StringDevice.h 
Log Message:
egg. IO experiment.

--- NEW FILE: StringDevice.h ---
#ifndef P_IO_STRINGDEVICE_HPP_INCLUDED
#define P_IO_STRINGDEVICE_HPP_INCLUDED 1

#include "pclasses/IO/IODevice.h"
#include "pclasses/Unicode/String.h"

namespace P { namespace IO {


	/**
	   StringDevice is an experiment to get to know the IO layer
	   better. It implements an IODevice interface into a
	   Unicode::String buffer of arbitrary size.
	*/
	class StringDevice : public IODevice
	{
	public:
		typedef ::P::Unicode::String StringType;

		StringDevice(){}
		virtual ~StringDevice() throw() {}

		virtual size_t 
		read(char *buffer, size_t count) throw (IOError);

		virtual size_t 
		peek(char *buffer, size_t count) throw (IOError);

		virtual size_t 
		write(const char *buffer, size_t count) throw (IOError);


		virtual offset_t 
		seek(offset_t offset, SeekMode mode) throw (IOError);

		virtual void close() throw (IOError) {}


		virtual offset_t 
		getPos() throw (IOError)
		{ return this->m_pos; }

		virtual bool 
		isSeekable() const throw ()
		{ return true; }

		virtual void 
		sync() const throw (IOError)
		{}

		virtual offset_t 
		size () const throw (IOError)
		{ return this->m_buf.size(); }

		StringType & str() { return this->m_buf; }

		const StringType & str() const { return this->m_buf; }

	private:
		size_t m_pos;
		StringType m_buf;
	};

} } // namespace P::IO


#endif // P_IO_STRINGDEVICE_HPP_INCLUDED