Trait ublox_cellular::prelude::UdpClientStack [−][src]
pub trait UdpClientStack {
type UdpSocket;
type Error: Debug;
fn socket(&mut self) -> Result<Self::UdpSocket, Self::Error>;
fn connect(
&mut self,
socket: &mut Self::UdpSocket,
remote: SocketAddr
) -> Result<(), Self::Error>;
fn send(
&mut self,
socket: &mut Self::UdpSocket,
buffer: &[u8]
) -> Result<(), Error<Self::Error>>;
fn receive(
&mut self,
socket: &mut Self::UdpSocket,
buffer: &mut [u8]
) -> Result<(usize, SocketAddr), Error<Self::Error>>;
fn close(&mut self, socket: Self::UdpSocket) -> Result<(), Self::Error>;
}
Expand description
This trait is implemented by UDP/IP stacks. You could, for example, have
an implementation which knows how to send AT commands to an ESP8266 WiFi
module. You could have another implementation which knows how to driver the
Rust Standard Library’s std::net
module. Given this trait, you can how
write a portable CoAP client which can work with either implementation.
Associated Types
Required methods
Connect a UDP socket with a peer using a dynamically selected port.
Selects a port number automatically and initializes for read/writing.
Send a datagram to the remote host.
The remote host used is either the one specified in UdpStack::connect
or the last one used in UdpServerStack::write_to
.
Read a datagram the remote host has sent to us.
Returns Ok((n, remote))
, which means a datagram of size n
has been
received from remote
and been placed in &buffer[0..n]
, or an error.
If a packet has not been received when called, then nb::Error::WouldBlock
should be returned.