Struct trust_dns_client::client::AsyncClient

pub struct AsyncClient { /* private fields */ }

A DNS Client implemented over futures-rs.

This Client is generic and capable of wrapping UDP, TCP, and other underlying DNS protocol implementations.

Implementations

impl AsyncClient

pub async fn new<F, S>( stream: F, stream_handle: BufDnsStreamHandle, signer: Option<Arc<Signer>> ) -> Result<(Self, DnsExchangeBackground<DnsMultiplexer<S, Signer>, TokioTime>), ProtoError>where F: Future<Output = Result<S, ProtoError>> + Send + Unpin + 'static, S: DnsClientStream + 'static + Unpin,

Spawns a new AsyncClient Stream. This uses a default timeout of 5 seconds for all requests.

Arguments

• stream - A stream of bytes that can be used to send/receive DNS messages (see TcpClientStream or UdpClientStream)
• stream_handle - The handle for the stream on which bytes can be sent/received.
• signer - An optional signer for requests, needed for Updates with Sig0, otherwise not needed

pub async fn with_timeout<F, S>( stream: F, stream_handle: BufDnsStreamHandle, timeout_duration: Duration, signer: Option<Arc<Signer>> ) -> Result<(Self, DnsExchangeBackground<DnsMultiplexer<S, Signer>, TokioTime>), ProtoError>where F: Future<Output = Result<S, ProtoError>> + 'static + Send + Unpin, S: DnsClientStream + 'static + Unpin,

Spawns a new AsyncClient Stream.

Arguments

• stream - A stream of bytes that can be used to send/receive DNS messages (see TcpClientStream or UdpClientStream)
• timeout_duration - All requests may fail due to lack of response, this is the time to wait for a response before canceling the request.
• stream_handle - The handle for the stream on which bytes can be sent/received.
• signer - An optional signer for requests, needed for Updates with Sig0, otherwise not needed

pub async fn connect<F, S>( connect_future: F ) -> Result<(Self, DnsExchangeBackground<S, TokioTime>), ProtoError>where S: DnsRequestSender, F: Future<Output = Result<S, ProtoError>> + 'static + Send + Unpin,

Returns a future, which itself wraps a future which is awaiting connection.

The connect_future should be lazy.

Returns

This returns a tuple of Self a handle to send dns messages and an optional background. The background task must be run on an executor before handle is used, if it is Some. If it is None, then another thread has already run the background.

pub fn enable_edns(&mut self)

(Re-)enable usage of EDNS for outgoing messages

pub fn disable_edns(&mut self)

Disable usage of EDNS for outgoing messages

Trait Implementations

impl Clone for AsyncClient

fn clone(&self) -> AsyncClient

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl DnsHandle for AsyncClient

type Response = DnsExchangeSend

The associated response from the response stream, this should resolve to the Response messages

type Error = ProtoError

Error of the response, generally this will be ProtoError

fn send<R: Into<DnsRequest> + Unpin + Send + 'static>( &mut self, request: R ) -> Self::Response

Send a message via the channel in the client

fn is_using_edns(&self) -> bool

Allow for disabling EDNS

fn is_verifying_dnssec(&self) -> bool

Only returns true if and only if this DNS handle is validating DNSSEC.

fn lookup(&mut self, query: Query, options: DnsRequestOptions) -> Self::Response

A classic DNS query