pub fn into_0rtt(self) -> Result<(IncomingRequest, ZeroRttAccepted), Self> {
        let Self {
            connecting,
            settings,
        } = self;
        let (new_connection, zerortt_accepted) =
            connecting.into_0rtt().map_err(|connecting| Self {
                connecting,
                settings: settings.clone(),
            })?;
        let quinn::NewConnection {
            connection,
            bi_streams,
            uni_streams,
            ..
        } = new_connection;

        let conn_ref =
            ConnectionRef::new(connection, Side::Server, uni_streams, bi_streams, settings);
        tokio::spawn(ConnectionDriver(conn_ref.clone()));
        Ok((IncomingRequest(conn_ref), zerortt_accepted))
    }
/// Try to convert an ongoing handshake into a 0-RTT enabled exchange.
///
/// # About 0-RTT
///
/// 0 Round Trip Time is a QUIC feature enabling application data exchange before the
/// peers have finished the TLS handshake. It's based on prior crypto exchange, reused
/// for a new connection. So this function will fail if it's the first contact with
/// the client.
///
/// # Security concerns
///
/// This functionality is vulnerable to replay attacks. Therefore any request with a
/// non-idempotent method will cause the connection to be rejected immediately.
/// Applications should also be careful about the load generated
/// by 0-RTT triggered request processing, as this feature creates Denial of Service
/// attack opportunities.
///
/// # Usage
///
/// Upon success, this method returns a `Stream` of [`IncomingRequest`]s, and a `Future`
/// that will resolve when the handshake completes: [`ZeroRttAccepted`]. If this peer
/// is not associated with any known prior connection, the [`Connecting`] handshake
/// completion future will be handed back.
///
/// ```
/// use futures::StreamExt;
/// use quinn_h3::server::{self, IncomingRequest};
///
/// # use anyhow::Result;
/// # async fn handle_request(_: IncomingRequest) {unimplemented!()}
/// # #[tokio::main]
/// # async fn main() -> Result<()> {
/// # return Ok(());
/// let mut incoming_connection = server::Builder::default().build()?;
///
/// while let Some(connecting) = incoming_connection.next().await {
///     match connecting.into_0rtt() {
///         Ok((incoming_request, _zerortt_accepted)) => {
///             handle_request(incoming_request).await;
///         }
///         Err(connecting) => {
///             let incoming_request = connecting.await?;
///             handle_request(incoming_request).await;
///         }
///     }
/// }
/// # Ok(())
/// # }
/// ```
///
/// [`IncomingRequest`]: struct.IncomingRequest.html
/// [`ZeroRttAccepted`]: type.ZeroRttAccepted.html
/// [`Connecting`]: struct.Connecting.html
Try to convert an ongoing handshake into a 0-RTT enabled exchange.
Try to convert an ongoing handshake into a 0 - RTT enabled exchange .
pub fn into_0rtt(self) -> Result<(IncomingRequest, ZeroRttAccepted), Self> {
        let Self {
            connecting,
            settings,
        } = self;
        let (new_connection, zerortt_accepted) =
            connecting.into_0rtt().map_err(|connecting| Self {
                connecting,
                settings: settings.clone(),
            })?;
        let quinn::NewConnection {
            connection,
            bi_streams,
            uni_streams,
            ..
        } = new_connection;
        let conn_ref =
            ConnectionRef::new(connection, Side::Server, uni_streams, bi_streams, settings);
        tokio::spawn(ConnectionDriver(conn_ref.clone()));
        Ok((IncomingRequest(conn_ref), zerortt_accepted))
    }
pub fn into_0rtt ( self ) -> Result < ( IncomingRequest , ZeroRttAccepted ) , Self > { let Self { connecting , settings , } = self ; let ( new_connection , zerortt_accepted ) = connecting . into_0rtt ( ) . map_err ( | connecting | Self { connecting , settings : settings . clone ( ) , } ) ? ; let quinn :: NewConnection { connection , bi_streams , uni_streams , .. } = new_connection ; let conn_ref = ConnectionRef :: new ( connection , Side :: Server , uni_streams , bi_streams , settings ) ; tokio :: spawn ( ConnectionDriver ( conn_ref . clone ( ) ) ) ; Ok ( ( IncomingRequest ( conn_ref ) , zerortt_accepted ) ) }
Try to convert an ongoing handshake into a 0-RTT enabled exchange.
Try to convert an ongoing handshake into a 0 - RTT enabled exchange .
self
about 0-rtt
0 Round Trip Time is a QUIC feature enabling application data exchange before the
peers have finished the TLS handshake. It's based on prior crypto exchange, reused
for a new connection. So this function will fail if it's the first contact with
the client.
0 Round Trip Time is a QUIC feature enabling application data exchange before the peers have finished the TLS handshake . It ' s based on prior crypto exchange reused for a new connection . So this function will fail if it ' s the first contact with the client .
security concerns
This functionality is vulnerable to replay attacks. Therefore any request with a
non-idempotent method will cause the connection to be rejected immediately.
Applications should also be careful about the load generated
by 0-RTT triggered request processing, as this feature creates Denial of Service
attack opportunities.
This functionality is vulnerable to replay attacks . Therefore any request with a non - idempotent method will cause the connection to be rejected immediately . Applications should also be careful about the load generated by 0 - RTT triggered request processing as this feature creates Denial of Service attack opportunities .
usage
Upon success, this method returns a `Stream` of [`IncomingRequest`]s, and a `Future`
that will resolve when the handshake completes: [`ZeroRttAccepted`]. If this peer
is not associated with any known prior connection, the [`Connecting`] handshake
completion future will be handed back.

```
use futures::StreamExt;
use quinn_h3::server::{self, IncomingRequest}.
Upon success this method returns a ` Stream ` of [ ` IncomingRequest ` ] s and a ` Future ` that will resolve when the handshake completes : [ ` ZeroRttAccepted ` ] . If this peer is not associated with any known prior connection the [ ` Connecting ` ] handshake completion future will be handed back . ` ` ` use futures :: StreamExt ; use quinn_h3 :: server :: { self IncomingRequest } .
use anyhow::result;
None
async fn handle_request(_: incomingrequest) {unimplemented!()}
None
#[tokio::main]
None
async fn main() -> result<()> {
None
return ok(());
let mut incoming_connection = server::Builder::default().build()?.

while let Some(connecting) = incoming_connection.next().await {
match connecting.into_0rtt() {
Ok((incoming_request, _zerortt_accepted)) => {
handle_request(incoming_request).await;
}
Err(connecting) => {
let incoming_request = connecting.await?;
handle_request(incoming_request).await;
}
}
}
let mut incoming_connection = server :: Builder :: default () . build () ? . while let Some ( connecting ) = incoming_connection . next () . await { match connecting . into_0rtt () { Ok (( incoming_request _zerortt_accepted )) = > { handle_request ( incoming_request ) . await ; } Err ( connecting ) = > { let incoming_request = connecting . await? ; handle_request ( incoming_request ) . await ; } } }
ok(())
None
}


[`IncomingRequest`]: struct.IncomingRequest.html
[`ZeroRttAccepted`]: type.ZeroRttAccepted.html
[`Connecting`]: struct.Connecting.html
[ ` IncomingRequest ` ] : struct . IncomingRequest . html [ ` ZeroRttAccepted ` ] : type . ZeroRttAccepted . html [ ` Connecting ` ] : struct . Connecting . html