uhd::transport::muxed_zero_copy_if Class Reference

#include <uhd/transport/muxed_zero_copy_if.hpp>

Inheritance diagram for uhd::transport::muxed_zero_copy_if:

Public Types
typedef boost::shared_ptr< muxed_zero_copy_if >	sptr
typedef boost::function< uint32_t(void *buff, size_t size)>	stream_classifier_fn

Public Member Functions
virtual	~muxed_zero_copy_if ()
	virtual dtor More...
virtual zero_copy_if::sptr	make_stream (const uint32_t stream_num)=0
	Make a virtual transport for the specified stream number. More...
virtual void	remove_stream (const uint32_t stream_num)=0
	Unregister the stream number. All packets destined to the stream will be dropped. More...
virtual size_t	get_num_dropped_frames () const =0
	Get number of frames dropped due to unregistered streams. More...

Static Public Member Functions
static sptr	make (zero_copy_if::sptr base_xport, stream_classifier_fn classify_fn, size_t max_streams)
	Make a new demuxer from a transport and parameters. More...

Detailed Description

Implements a software muxed-demuxed zero-copy transport This is a wrapper around a base transport that allows creation of virtual zero_copy_if streams that are indistinguishable from physical transport streams. This class handles demuxing receive streams into the appropriate virtual streams with the given classifier function. A worker therad is spawned to handle the demuxing.

Member Typedef Documentation

sptr

typedef boost::shared_ptr<muxed_zero_copy_if> uhd::transport::muxed_zero_copy_if::sptr

stream_classifier_fn

typedef boost::function<uint32_t(void* buff, size_t size)> uhd::transport::muxed_zero_copy_if::stream_classifier_fn

Function to classify the stream based on the payload. The classifier must return a stream number, an arbitrary identifier for a virtual stream that is consistent with the stream number used in the make_stream and remove_stream fuctions

Parameters

buff	a pointer to the payload of the frame
size	number of bytes in the frame payload

Returns

stream number

Constructor & Destructor Documentation

~muxed_zero_copy_if()

virtual uhd::transport::muxed_zero_copy_if::~muxed_zero_copy_if ( )

inlinevirtual

virtual dtor

Member Function Documentation

get_num_dropped_frames()

virtual size_t uhd::transport::muxed_zero_copy_if::get_num_dropped_frames ( ) const

pure virtual

Get number of frames dropped due to unregistered streams.

make()

static sptr uhd::transport::muxed_zero_copy_if::make ( zero_copy_if::sptr  base_xport, stream_classifier_fn  classify_fn, size_t  max_streams  )

static

Make a new demuxer from a transport and parameters.

make_stream()

virtual zero_copy_if::sptr uhd::transport::muxed_zero_copy_if::make_stream ( const uint32_t  stream_num )

pure virtual

Make a virtual transport for the specified stream number.

remove_stream()

virtual void uhd::transport::muxed_zero_copy_if::remove_stream ( const uint32_t  stream_num )

pure virtual

Unregister the stream number. All packets destined to the stream will be dropped.

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The documentation for this class was generated from the following file:

• include/uhd/transport/muxed_zero_copy_if.hpp