From 5c5dc8f30b8a4072a11641a8cbe82387ae87d082 Mon Sep 17 00:00:00 2001
From: Victor Grishchenko <victor.grishchenko@gmail.com>
Date: Wed, 13 Oct 2010 16:34:00 +0200
Subject: [PATCH] no repeated data accept (and no rep acks)

---
 sendrecv.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sendrecv.cpp b/sendrecv.cpp
index 530c27b..1f808ba 100644
--- a/sendrecv.cpp
+++ b/sendrecv.cpp
@@ -320,7 +320,8 @@ bin64_t Channel::OnData (Datagram& dgram) {  // TODO: HAVE NONE for corrupted da
     bin64_t pos = dgram.Pull32();
     uint8_t *data;
     int length = dgram.Pull(&data,1024);
-    bool ok = (pos==bin64_t::NONE) || file().OfferData(pos, (char*)data, length) ;
+    bool ok = (pos==bin64_t::NONE) || 
+        (!file().ack_out().get(pos) && file().OfferData(pos, (char*)data, length) );
     dprintf("%s #%u %cdata %s\n",tintstr(),id_,ok?'-':'!',pos.str());
     data_in_ = tintbin(NOW,bin64_t::NONE);
     if (!ok)
-- 
2.39.5