Input stream for an IODevice. More...

Public Member Functions
	IStream (std::size_t bufferSize=8192, bool extend=false)
	Construct with buffer size.
	IStream (IODevice &device, std::size_t bufferSize=8192, bool extend=false)
	Construct with I/O device.
	~IStream ()
	Destructor.
IOBuffer &	ioBuffer ()
	Returns the stream buffer.
IODevice *	device ()
	Returns the I/O device.
void	attach (IODevice &dev)
	Attach to I/O device.
void	detach ()
	Detach from I/O device.
void	discard ()
	Discards the buffer.
void	reset ()
	Discards and detaches.
std::streamsize	peeksome (char *buffer, std::streamsize n)
	Peeks bytes in the stream buffer.
BasicStreamBuffer< char > *	buffer ()
	Returns the buffer.
void	setBuffer (BasicStreamBuffer< char > *sb)
	Sets the buffer.

Detailed Description

IStream is a C++ istream whose buffer is an IOBuffer. attach() binds an IODevice. Extraction then reads from that device.

Member Function Documentation

std::streamsize peeksome	(	char *	buffer,
		std::streamsize	n )

inherited

The number of bytes that can be peeked depends on the current stream buffer get area and maybe less than requested, similar to istream::readsome().