From cdfcdd528ef85680a01f4473c368bce65c43250b Mon Sep 17 00:00:00 2001
From: Stuckinaboot <aspyn@seas.upenn.edu>
Date: Thu, 28 Feb 2019 18:12:09 -0500
Subject: [PATCH] Add notifee interface

---
 libp2p/network/notifee_interface.py | 46 +++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 libp2p/network/notifee_interface.py

diff --git a/libp2p/network/notifee_interface.py b/libp2p/network/notifee_interface.py
new file mode 100644
index 0000000..fbc61f4
--- /dev/null
+++ b/libp2p/network/notifee_interface.py
@@ -0,0 +1,46 @@
+from abc import ABC, abstractmethod
+
+
+class INotifee(ABC):
+
+    @abstractmethod
+    def opened_stream(self, network, stream):
+        """
+        :param network: network the stream was opened on
+        :param stream: stream that was opened
+        """
+
+    @abstractmethod
+    def closed_stream(self, network, stream):
+        """
+        :param network: network the stream was closed on
+        :param stream: stream that was closed
+        """
+
+    @abstractmethod
+    def connected(self, network, conn):
+        """
+        :param network: network the connection was opened on
+        :param conn: connection that was opened
+        """
+
+    @abstractmethod
+    def disconnected(self, network, conn):
+        """
+        :param network: network the connection was closed on
+        :param conn: connection that was closed
+        """
+
+    @abstractmethod
+    def listen(self, network, multiaddr):
+        """
+        :param network: network the listener is listening on
+        :param multiaddr: multiaddress listener is listening on
+        """
+
+    @abstractmethod
+    def listen_close(self, network, multiaddr):
+        """
+        :param network: network the connection was opened on
+        :param multiaddr: multiaddress listener is no longer listening on
+        """