Add is_running function to Node

  - Expose in bindings

Author: jbesraa

bindings/ldk_node.udl

@@ -89,6 +89,7 @@ interface LDKNode {
 	[Throws=NodeError]
 	string sign_message([ByRef]sequence<u8> msg);
 	boolean verify_signature([ByRef]sequence<u8> msg, [ByRef]string sig, [ByRef]PublicKey pkey);
+	boolean is_running();
 };
 
 [Error]

src/lib.rs

@@ -708,6 +708,11 @@ impl<K: KVStore + Sync + Send + 'static> Node<K> {
 		Ok(())
 	}
 
+	/// Returns whether the [`Node`] is running.
+	pub fn is_running(&self) -> bool {
+		self.runtime.read().unwrap().is_some()
+	}
+
 	/// Disconnects all peers, stops all running background tasks, and shuts down [`Node`].
 	///
 	/// After this returns most API methods will return [`Error::NotRunning`].