Struct UsbPacketBuilder

pub struct UsbPacketBuilder<B> { /* private fields */ }

Builds an aggregate usb packet out of vsock packets and gives readiness notifications when there is room to add another packet or data available to send.

Implementations

impl<B> UsbPacketBuilder<B>

pub fn new(buffer: B) -> Self

Creates a new builder from buffer, which is a type that can be used as a mutable slice with space available for storing vsock packets. The readable_notify will have a message sent to it whenever a usb packet could be transmitted.

pub fn has_data(&self) -> bool

Returns true if the packet has data in it

impl<B> UsbPacketBuilder<B>

where B: DerefMut<Target = [u8]>,

pub fn available(&self) -> usize

Gets the space currently available for another packet in the buffer

pub fn write_vsock_packet( &mut self, packet: &Packet<'_>, ) -> Result<(), PacketTooBigError>

Writes the given packet into the buffer. The packet and header must be able to fit within the buffer provided at creation time.

pub fn take_usb_packet(&mut self) -> Option<&mut [u8]>

Takes the current usb packet, if there is one. The returned mutable slice will be only the data written to the buffer so far, and packet writing will be reset to the beginning of the buffer.