Place barrier and waiters in their own modules

1 files changed, 13 insertions, 0 deletions

diff --git a/src/sync/waiter.rs b/src/sync/waiter.rs
new file mode 100644
index 0000000..656c42e
--- /dev/null
+++ b/src/sync/waiter.rs
@@ -0,0 +1,13 @@
+use futures::sync::oneshot;
+use futures::Future;
+
+pub trait Waiter {
+    type Item: Send + 'static;
+    type Error: From<Self::ConditionError> 
+        + From<oneshot::Canceled> + From<()> + Send + 'static;
+    type ConditionError: Send + Clone + 'static;
+
+    fn blocked(&self) -> bool;
+    fn condition_poller(&self) -> Box<Future<Item=(), Error=Self::ConditionError> + Send>;
+    fn into_future(self) -> Box<Future<Item=Self::Item, Error=Self::Error> + Send>;
+}