Implement drain method for EventQueue

This method allows a user to read all events without needing to hold
a borrow on the queue.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 7aaf73c..7d88883 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,6 +18,10 @@ impl<E> EventQueue<E> {
         self.queue.push_back(event);
     }
 
+    pub fn drain(&mut self) -> Vec<E> {
+        self.queue.drain(..).collect()
+    }
+
     pub fn as_reader(&mut self) -> EventReader<E> {
         EventReader { queue: &mut self.queue }
     }