Net_transfer Class Reference

A network request to only a single destination. More...

#include <request.h>

Collaboration diagram for Net_transfer:

Public Member Functions
void const *	req_id () const
	Identifier for the underlying Net_request, used for logging purposes.
virtual void	copy_header (Virtio_net::Hdr *dst_header) const =0
	Populate the virtio-net header for the destination.
Buffer &	cur_buf ()
	Buffer containing (a part of) the packet data.
virtual bool	done ()=0
	Check whether the transfer has been completed, i.e.

Detailed Description

A network request to only a single destination.

A Net_request can have multiple destinations (being a broadcast request, for example). That is why it is processed by multiple Net_transfers, each representing the delivery to a single destination port.

Port_iface::handle_request uses the Net_transfer to move one packet to the destination of the request.

Definition at line 33 of file request.h.

Member Function Documentation

cur_buf()

Buffer & Net_transfer::cur_buf ( )

inline

Buffer containing (a part of) the packet data.

Once emptied, a call to done() might replenish the buffer, in case the net request consisted of multiple chained buffers.

Definition at line 54 of file request.h.

done()

virtual bool Net_transfer::done ( )

pure virtual

Check whether the transfer has been completed, i.e.

the entire packet data has been copied.

Return values

false	There is remaining packet data that needs to be copied.
true	The entire packet data has been copied.

Exceptions

L4virtio::Svr::Bad_descriptor

Exception raised in SRC port queue.

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

• pkg/virtio-net-switch/server/switch/request.h