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Timeouts

zcash_client_backend::tor

Struct Timeouts 

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pub struct Timeouts { /* private fields */ }
Available on crate feature tor only.
Expand description

Deadlines applied to network operations performed by a Client.

Without these, a server that accepts a connection and then goes silent would leave the corresponding future pending forever. Tor circuits make this more likely than it is on the clearnet: a half-open circuit can persist for a long time without the peer’s TCP stack ever delivering a reset.

Use Timeouts::default for values suitable for typical Tor circuit latency, or the with_* methods to tune them.

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impl Timeouts

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pub fn with_connect(self, timeout: Duration) -> Self

Sets the maximum time allowed to establish a usable connection to a server.

This covers opening the Tor stream and, for HTTPS or gRPC-over-TLS endpoints, completing the TLS handshake.

The default is 30 seconds.

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pub fn with_request(self, timeout: Duration) -> Self

Sets the maximum time allowed to send a request and receive its response headers.

This does not bound the time taken to receive a response body; see Self::with_response_body for HTTP, and Self::with_grpc_keepalive for gRPC.

The default is 60 seconds.

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pub fn with_response_body(self, timeout: Duration) -> Self

Sets the maximum time allowed to receive a complete HTTP response body.

This is not applied to gRPC responses, because a gRPC response may be a long-running stream (such as GetBlockRange) for which no fixed deadline is appropriate. Use Self::with_grpc_keepalive to bound those instead.

The default is 60 seconds.

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pub fn with_grpc_keepalive(self, interval: Duration, timeout: Duration) -> Self

Sets the HTTP/2 keep-alive parameters used for gRPC connections.

A ping is sent every interval while a request is in flight, and the connection is closed if no acknowledgement is received within timeout. This is what detects a gRPC peer that stalls partway through streaming a response, which no request deadline can bound without also capping legitimately long streams.

The defaults are a 30 second interval and a 20 second timeout.

Trait Implementations§

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impl Clone for Timeouts

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for Timeouts

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impl Debug for Timeouts

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for Timeouts

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fn default() -> Self

Returns the “default value” for a type. Read more

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