modularize core

src/core/port.rs

@@ -0,0 +1,50 @@
+use crate::core::*;
+
+/// Trait for things that may expose JACK ports.
+pub trait PortList {
+    fn audio_ins  (&self) -> Usually<Vec<String>> {
+        Ok(vec![])
+    }
+    fn audio_outs (&self) -> Usually<Vec<String>> {
+        Ok(vec![])
+    }
+    fn midi_ins   (&self) -> Usually<Vec<String>> {
+        Ok(vec![])
+    }
+    fn midi_outs  (&self) -> Usually<Vec<String>> {
+        Ok(vec![])
+    }
+    fn connect (&mut self, _connect: bool, _source: &str, _target: &str)
+        -> Usually<()>
+    {
+        Ok(())
+    }
+    fn connect_all (&mut self, connections: &[(bool, &str, &str)])
+        -> Usually<()>
+    {
+        for (connect, source, target) in connections.iter() {
+            self.connect(*connect, source, target)?;
+        }
+        Ok(())
+    }
+}
+
+pub struct DevicePort<T: PortSpec> {
+    pub name:    String,
+    pub port:    Port<T>,
+    pub connect: Vec<String>,
+}
+
+impl<T: PortSpec + Default> DevicePort<T> {
+    pub fn new (client: &Client, name: &str, connect: &[&str]) -> Usually<Self> {
+        let mut connects = vec![];
+        for port in connect.iter() {
+            connects.push(port.to_string());
+        }
+        Ok(Self {
+            name: name.to_string(),
+            port: client.register_port(name, T::default())?,
+            connect: connects,
+        })
+    }
+}