add Drop for ExamplePulgin

1 files changed, 7 insertions, 1 deletions

diff --git a/src/plugin/example.rs b/src/plugin/example.rs
index a8b5e44..f6a28eb 100644
--- a/src/plugin/example.rs
+++ b/src/plugin/example.rs
@@ -51,7 +51,7 @@ impl PHandle<()> for ExamplePulgin {
         packet: Option<&'a crate::packet::packet::Packet<'a>>, // packet as a reference, need 'a lifetime
         session: Option<Rc<RefCell<Session>>>,
         events: LinkedList<Event>,
-    ) -> () {
+    ) {
         let bind = session.unwrap();
         let mut session = bind.try_borrow_mut().unwrap();
         session.inc_session_c2s_metrics(0, 0, 1, 1);
@@ -94,3 +94,9 @@ impl PHandle<()> for ExamplePulgin {
         }
     }
 }
+
+impl Drop for ExamplePulgin {
+    fn drop(&mut self) {
+        self.plug_events.unregister()
+    }
+}