refactoring stream IDs

network/connection/raw_connection.py

@@ -2,13 +2,24 @@ from .raw_connection_interface import IRawConnection
 
 
 class RawConnection(IRawConnection):
-	# pylint: disable=too-few-public-methods
 
-    def __init__(self, ip, port, reader, writer):
+    def __init__(self, ip, port, reader, writer, initiator):
+        # pylint: disable=too-many-arguments
         self.conn_ip = ip
         self.conn_port = port
         self.reader = reader
         self.writer = writer
+        self._next_id = 0 if initiator else 1
+        self.initiator = initiator
 
     def close(self):
         self.writer.close()
+
+    def next_stream_id(self):
+        """
+        Get next available stream id
+        :return: next available stream id for the connection
+        """
+        next_id = self._next_id
+        self._next_id += 2
+        return next_id