--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/bridge/model/bridge-channel.cc	Mon Oct 25 15:00:28 2010 +0100
@@ -0,0 +1,93 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * 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: Gustavo Carneiro  <gjc@inescporto.pt>
+ */
+
+#include "ns3/log.h"
+#include "bridge-channel.h"
+
+NS_LOG_COMPONENT_DEFINE ("BridgeChannel");
+
+namespace ns3 {
+
+NS_OBJECT_ENSURE_REGISTERED (BridgeChannel);
+
+TypeId 
+BridgeChannel::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::BridgeChannel")
+    .SetParent<Channel> ()
+    .AddConstructor<BridgeChannel> ()
+    ;
+  return tid;
+}
+
+BridgeChannel::BridgeChannel ()
+  : Channel ()
+{
+  NS_LOG_FUNCTION_NOARGS ();
+}
+
+BridgeChannel::~BridgeChannel ()
+{
+  NS_LOG_FUNCTION_NOARGS ();
+
+  for (std::vector< Ptr<Channel> >::iterator iter = m_bridgedChannels.begin ();
+       iter != m_bridgedChannels.end (); iter++)
+    {
+      *iter = 0;
+    }
+  m_bridgedChannels.clear ();
+}
+
+
+void
+BridgeChannel::AddChannel (Ptr<Channel> bridgedChannel)
+{
+  m_bridgedChannels.push_back (bridgedChannel);
+}
+
+uint32_t
+BridgeChannel::GetNDevices (void) const
+{
+  uint32_t ndevices = 0;
+  for (std::vector< Ptr<Channel> >::const_iterator iter = m_bridgedChannels.begin ();
+       iter != m_bridgedChannels.end (); iter++)
+    {
+      ndevices += (*iter)->GetNDevices ();
+    }
+  return ndevices;
+}
+
+
+Ptr<NetDevice>
+BridgeChannel::GetDevice (uint32_t i) const
+{
+  uint32_t ndevices = 0;
+  for (std::vector< Ptr<Channel> >::const_iterator iter = m_bridgedChannels.begin ();
+       iter != m_bridgedChannels.end (); iter++)
+    {
+      if ((i - ndevices) < (*iter)->GetNDevices ())
+        {
+          return (*iter)->GetDevice (i - ndevices);
+        }
+      ndevices += (*iter)->GetNDevices ();
+    }
+  return NULL;
+}
+
+
+} // namespace ns3