Struct quicr_core::Endpoint

pub struct Endpoint { /* fields omitted */ }

The main entry point to the library

This object performs no I/O whatsoever. Instead, it generates a stream of I/O operations for a backend to perform via poll_io, and consumes incoming packets and timer expirations via handle and timeout.

Methods

impl Endpoint

pub fn new(     log: Logger,     config: Config,     cert: Option<CertConfig>,     listen: Option<ListenKeys> ) -> Result<Self, EndpointError>

pub fn poll(&mut self) -> Option<(ConnectionHandle, Event)>

Get an application-facing event

pub fn poll_io(&mut self, now: u64) -> Option<Io>

Get a pending IO operation

pub fn handle(&mut self, now: u64, remote: SocketAddrV6, data: Bytes)

Process an incoming UDP datagram

pub fn connect(     &mut self,     remote: SocketAddrV6,     config: ClientConfig ) -> Result<ConnectionHandle, ConnectError>

Initiate a connection

pub fn timeout(&mut self, now: u64, conn: ConnectionHandle, timer: Timer)

Handle a timer expiring

pub fn write(     &mut self,     conn: ConnectionHandle,     stream: StreamId,     data: &[u8] ) -> Result<usize, WriteError>

Transmit data on a stream

Returns the number of bytes written on success.

Panics

• when applied to a stream that does not have an active outgoing channel

pub fn finish(&mut self, conn: ConnectionHandle, stream: StreamId)

Indicate that no more data will be sent on a stream

All previously transmitted data will still be delivered. Incoming data on bidirectional streams is unaffected.

Panics

• when applied to a stream that does not have an active outgoing channel

pub fn read(     &mut self,     conn: ConnectionHandle,     stream: StreamId,     buf: &mut [u8] ) -> Result<usize, ReadError>

Read data from a stream

Treats a stream like a simple pipe, similar to a TCP connection. Subject to head-of-line blocking within the stream. Consider read_unordered for higher throughput.

Panics

• when applied to a stream that does not have an active incoming channel

pub fn read_unordered(     &mut self,     conn: ConnectionHandle,     stream: StreamId ) -> Result<(Bytes, u64), ReadError>

Read data from a stream out of order

Unlike read, this interface is not subject to head-of-line blocking within the stream, and hence can achieve higher throughput over lossy links.

Some segments may be received multiple times.

On success, returns Ok((data, offset)) where offset is the position data begins in the stream.

Panics

• when applied to a stream that does not have an active incoming channel

pub fn reset(     &mut self,     conn: ConnectionHandle,     stream: StreamId,     error_code: u16 )

Abandon transmitting data on a stream

Panics

• when applied to a receive stream or an unopened send stream

pub fn stop_sending(     &mut self,     conn: ConnectionHandle,     stream: StreamId,     error_code: u16 )

Instruct the peer to abandon transmitting data on a stream

Panics

• when applied to a stream that has not begin receiving data

pub fn open(     &mut self,     conn: ConnectionHandle,     direction: Directionality ) -> Option<StreamId>

Create a new stream

Returns None if the maximum number of streams currently permitted by the remote endpoint are already open.

pub fn ping(&mut self, conn: ConnectionHandle)

Ping the remote endpoint

Useful for preventing an otherwise idle connection from timing out.

pub fn close(     &mut self,     now: u64,     conn: ConnectionHandle,     error_code: u16,     reason: Bytes )

Close a connection immediately

This does not ensure delivery of outstanding data. It is the application's responsibility to call this only when all important communications have been completed.

pub fn get_side(&self, conn: ConnectionHandle) -> Side

Look up whether we're the client or server of conn.

pub fn get_local_id(&self, conn: ConnectionHandle) -> &ConnectionId

The ConnectionId used for conn locally.

pub fn get_remote_id(&self, conn: ConnectionHandle) -> &ConnectionId

The ConnectionId used for conn by the peer.

pub fn get_remote_address(&self, conn: ConnectionHandle) -> &SocketAddrV6

pub fn get_protocol(&self, conn: ConnectionHandle) -> Option<&[u8]>

pub fn get_bytes_in_flight(&self, conn: ConnectionHandle) -> u64

The number of bytes of packets containing retransmittable frames that have not been acknowleded or declared lost

pub fn get_congestion_state(&self, conn: ConnectionHandle) -> u64

Number of bytes worth of non-ack-only packets that may be sent.

pub fn get_servername(&self, conn: ConnectionHandle) -> Option<&str>

The name a client supplied via SNI.

None if no name was supplied or if this connection was locally-initiated.

pub fn get_session_resumed(&self, conn: ConnectionHandle) -> bool

Whether a previous session was successfully resumed by conn.

pub fn accept(&mut self) -> Option<ConnectionHandle>