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Unified Diff: src/internet-stack/tcp-reno.h

Issue 1702042: New TCP architecture for NS-3
Patch Set: Make some variables into TracedValue (testsuite will be in next patchset) Created 13 years, 6 months ago
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Index: src/internet-stack/tcp-reno.h
===================================================================
new file mode 100644
--- /dev/null
+++ b/src/internet-stack/tcp-reno.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2010 Adrian Sai-wah Tam
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Adrian Sai-wah Tam <adrian.sw.tam@gmail.com>
+ */
+
+#ifndef TCP_RENO_H
+#define TCP_RENO_H
+
+#include "tcp-socket-base.h"
+
+namespace ns3 {
+
+/**
+ * \ingroup socket
+ * \ingroup tcp
+ *
+ * \brief An implementation of a stream socket using TCP.
+ *
+ * This class contains the Reno implementation of TCP, according to RFC2581,
+ * except sec.4.1 "re-starting idle connections", which we do not detect for
+ * idleness and thus no slow start upon resumption.
+ */
+class TcpReno : public TcpSocketBase
+{
+public:
+ static TypeId GetTypeId (void);
+ /**
+ * Create an unbound tcp socket.
+ */
+ TcpReno (void);
+ TcpReno (const TcpReno& sock);
+ virtual ~TcpReno (void);
+
+ // Set associated Node, TcpL4Protocol, RttEstimator to this socket
+ virtual void SetNode (Ptr<Node> node);
+
+protected:
+ virtual uint32_t Window (void); // Return the max possible number of unacked bytes
+ virtual Ptr<TcpSocketBase> Fork (void); // Call CopyObject<TcpReno> to clone me
+ virtual void NewAck (const SequenceNumber32& seq); // Inc cwnd and call NewAck() of parent
+ virtual void DupAck (const TcpHeader& t, uint32_t count); // Fast retransmit
+ virtual void Retransmit (void); // Retransmit timeout
+
+ // Implementing ns3::TcpSocket -- Attribute get/set
+ virtual void SetSegSize (uint32_t size);
+ virtual void SetSSThresh (uint32_t threshold);
+ virtual uint32_t GetSSThresh (void) const;
+ virtual void SetInitialCwnd (uint32_t cwnd);
+ virtual uint32_t GetInitialCwnd (void) const;
+
+protected:
+ TracedValue<uint32_t> m_cWnd; //< Congestion window
+ uint32_t m_ssThresh; //< Slow Start Threshold
+ uint32_t m_initialCWnd; //< Initial cWnd value
+ bool m_inFastRec; //< currently in fast recovery
+};
+
+} // namespace ns3
+
+#endif /* TCP_RENO_H */

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