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#![cfg_attr(docsrs, feature(doc_auto_cfg))]
//! Abstraction of various request/reply communication backends.
//!
//! Provides a [`RequestReplyLayer`] trait as an abstraction for different request/reply
//! systems. The following set of backends are currently supported:
//!
//! TODO
pub use tcp::*;
mod tcp;
/// Abstraction trait for different publisher/subscriber implementations.
pub trait RequestReplyLayer: Send + Sync {
type Address;
type RequestData;
type ReplyData;
type Error;
#[allow(clippy::type_complexity)]
fn listen(
&mut self,
addr: Self::Address,
) -> Result<
Box<
dyn Iterator<
Item = Result<
Box<
dyn ListenConnection<
RequestData = Self::RequestData,
ReplyData = Self::ReplyData,
Error = Self::Error,
>,
>,
Self::Error,
>,
>,
>,
Self::Error,
>;
#[allow(clippy::type_complexity)]
fn connect(
&mut self,
addr: Self::Address,
) -> Result<
Box<
dyn RequestReplyConnection<
RequestData = Self::RequestData,
ReplyData = Self::ReplyData,
Error = Self::Error,
>,
>,
Self::Error,
>;
}
pub trait ListenConnection: Send + Sync {
type RequestData;
type ReplyData;
type Error;
#[allow(clippy::type_complexity)]
fn handle_next(
&mut self,
handler: Box<dyn FnOnce(Self::RequestData) -> Result<Self::ReplyData, Self::Error>>,
) -> Result<(), Self::Error>;
}
pub trait RequestReplyConnection: Send + Sync {
type RequestData;
type ReplyData;
type Error;
fn request(&mut self, request: &Self::RequestData) -> Result<Self::ReplyData, Self::Error>;
}
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