Add replier adaptor

nexosim-util/src/combinators.rs

@@ -0,0 +1,54 @@
+//! Connector combinators.
+//!
+//! This module contains combinator types useful for simulation bench assembly.
+//!
+
+use nexosim::model::Model;
+use nexosim::ports::{Output, Requestor};
+
+/// A replier adaptor.
+///
+/// `ReplierAdaptor` generic model is aimed to connect pair of input/output
+/// ports to a replier ports.
+///
+/// Model input is propagated to all the connected replier ports and their
+/// answers are written to the model output.
+pub struct ReplierAdaptor<T, R>
+where
+    T: Clone + Send + 'static,
+    R: Clone + Send + 'static,
+{
+    /// Requestor port to be connected to replier port.
+    pub requestor: Requestor<T, R>,
+
+    /// Output port to be connected to input port.
+    pub output: Output<R>,
+}
+
+impl<T, R> ReplierAdaptor<T, R>
+where
+    T: Clone + Send + 'static,
+    R: Clone + Send + 'static,
+{
+    /// Creates a `ReplierAdaptor` model.
+    pub fn new() -> Self {
+        Self {
+            requestor: Requestor::new(),
+            output: Output::new(),
+        }
+    }
+
+    /// Input port.
+    pub async fn input(&mut self, data: T) {
+        for res in self.requestor.send(data).await {
+            self.output.send(res).await;
+        }
+    }
+}
+
+impl<T, R> Model for ReplierAdaptor<T, R>
+where
+    T: Clone + Send + 'static,
+    R: Clone + Send + 'static,
+{
+}

nexosim-util/src/lib.rs

@@ -1 +1,2 @@
+pub mod combinators;
 pub mod observables;