Use Duration::ZERO

rclrust/src/executor.rs

@@ -19,7 +19,7 @@ pub fn spin<'ctx>(node: &Arc<Node<'ctx>>) -> Result<()> {
 pub fn spin_some<'ctx>(node: &Arc<Node<'ctx>>) -> Result<()> {
     let mut exec = SingleThreadExecutor::new(node.context_ref())?;
     exec.add_node(node);
-    exec.spin_some(Duration::new(0, 0))?;
+    exec.spin_some(Duration::ZERO)?;
 
     Ok(())
 }

rclrust/src/qos.rs

@@ -549,10 +549,10 @@ impl QoSProfile {
             depth: rcl_sys::RMW_QOS_POLICY_DEPTH_SYSTEM_DEFAULT as usize,
             reliability: ReliabilityPolicy::SystemDefault,
             durability: DurabilityPolicy::SystemDefault,
-            deadline: Duration::from_secs(0),
-            lifespan: Duration::from_secs(0),
+            deadline: Duration::ZERO,
+            lifespan: Duration::ZERO,
             liveliness: LivelinessPolicy::SystemDefault,
-            liveliness_lease_duration: Duration::from_secs(0),
+            liveliness_lease_duration: Duration::ZERO,
             avoid_ros_namespace_conventions: false,
         }
     }