From dbd1515ae8759061998064214cb7c87155dbc274 Mon Sep 17 00:00:00 2001
From: TheKysek <kysek@gazeta.pl>
Date: Mon, 20 Mar 2017 21:10:29 +0100
Subject: [PATCH] Object sending efficiency improvement

---
 src/connection.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/connection.py b/src/connection.py
index 4089430..47c704e 100644
--- a/src/connection.py
+++ b/src/connection.py
@@ -263,6 +263,8 @@ class Connection(threading.Thread):
             to_get = inv.vectors.copy()
             to_get.difference_update(shared.objects.keys())
             self.vectors_to_get.update(to_get)
+            # Do not send objects they already have.
+            self.vectors_to_send.difference_update(inv.vectors)
         elif m.command == b'object':
             obj = structure.Object.from_message(m)
             logging.debug('{}:{} -> {}'.format(self.host, self.port, obj))