From 1f894ae7eb05b5976bf7c98216afa6cedf6cea9f Mon Sep 17 00:00:00 2001
From: Ameya Deshpande <ameyanrd@outlook.com>
Date: Fri, 8 Oct 2021 19:26:47 +0200
Subject: [PATCH] nix-vector-routing: Remove the unused BuildNixVectorLocal ()
 function

This commit removes the dead function `BuildNixVectorLocal ()`.
This issue is discussed in #466.

Signed-off-by: Ameya Deshpande <ameyanrd@outlook.com>
---
 .../model/nix-vector-routing.cc               | 29 -------------------
 .../model/nix-vector-routing.h                |  7 -----
 2 files changed, 36 deletions(-)

diff --git a/src/nix-vector-routing/model/nix-vector-routing.cc b/src/nix-vector-routing/model/nix-vector-routing.cc
index dcd5faf50..3fa360eb9 100644
--- a/src/nix-vector-routing/model/nix-vector-routing.cc
+++ b/src/nix-vector-routing/model/nix-vector-routing.cc
@@ -269,35 +269,6 @@ NixVectorRouting<T>::GetIpRouteInCache (IpAddress address)
   return 0;
 }
 
-template <typename T>
-bool
-NixVectorRouting<T>::BuildNixVectorLocal (Ptr<NixVector> nixVector)
-{
-  NS_LOG_FUNCTION_NOARGS ();
-
-  uint32_t numberOfDevices = m_node->GetNDevices ();
-
-  // here we are building a nix vector to 
-  // ourself, so we need to find the loopback 
-  // interface and add that to the nix vector
-
-  for (uint32_t i = 0; i < numberOfDevices; i++)
-    {
-      uint32_t interfaceIndex = (m_ip)->GetInterfaceForDevice (m_node->GetDevice (i));
-      IpInterfaceAddress ifAddr = m_ip->GetAddress (interfaceIndex, 0);
-      IpAddress ifAddrValue = ifAddr.GetAddress ();
-      if (ifAddrValue.IsLocalhost ())
-        {
-          NS_LOG_LOGIC ("Adding loopback to nix.");
-          NS_LOG_LOGIC ("Adding Nix: " << i << " with " << nixVector->BitCount (numberOfDevices) 
-                                       << " bits, for node " << m_node->GetId ());
-          nixVector->AddNeighborIndex (i, nixVector->BitCount (numberOfDevices));
-          return true;
-        }
-    }
-  return false;
-}
-
 template <typename T>
 bool
 NixVectorRouting<T>::BuildNixVector (const std::vector< Ptr<Node> > & parentVector, uint32_t source, uint32_t dest, Ptr<NixVector> nixVector) const
diff --git a/src/nix-vector-routing/model/nix-vector-routing.h b/src/nix-vector-routing/model/nix-vector-routing.h
index 32b8cc173..28991022b 100644
--- a/src/nix-vector-routing/model/nix-vector-routing.h
+++ b/src/nix-vector-routing/model/nix-vector-routing.h
@@ -218,13 +218,6 @@ private:
    */
   bool BuildNixVector (const std::vector< Ptr<Node> > & parentVector, uint32_t source, uint32_t dest, Ptr<NixVector> nixVector) const;
 
-  /**
-   * Special variation of BuildNixVector for when a node is sending to itself
-   * \param [out] nixVector the NixVector to be used for routing
-   * \returns true on success, false otherwise.
-   */
-  bool BuildNixVectorLocal (Ptr<NixVector> nixVector);
-
   /**
    * Simply iterates through the nodes net-devices and determines
    * how many neighbors the node has.