[pclasses-cvs] pclasses2/src/IO StringDevice.cpp,NONE,1.1

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

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

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

--- NEW FILE: StringDevice.cpp ---
#include "pclasses/IO/StringDevice.h"


namespace P { namespace IO {


	size_t 
	StringDevice::peek(char *buffer, size_t count) throw (IOError)
	{
		size_t at = this->getPos();
		size_t to = ( (count + at) > this->size() )
			? this->size()
			: at + count;
		size_t ret = 0;
		for( ; at < to; at++ )
		{
			buffer[ret++] = this->m_buf.at(at).latin1();
		}
		return ret;
	}

	size_t 
	StringDevice::read(char *buffer, size_t count) throw (IOError)
	{
		size_t s1 = this->size();
		this->m_pos += this->peek( buffer, count );
		return this->m_pos - s1;
	}
	
	size_t 
	StringDevice::write(const char *buffer, size_t count) throw (IOError)
	{
		if( ! buffer || !count ) return 0;
		size_t s1 = this->size();
		this->m_buf.append( StringDevice::StringType( buffer, count ) );
		return this->m_buf.size() - s1;
	}

	offset_t
	StringDevice::seek(offset_t offset, SeekMode mode) throw (IOError)
	{
		// NYI
		return -1;
	}


} } // namespace P::IO