Add wrapper for waypoints file

utils/leo-input-fstream-container.cc

@@ -0,0 +1,103 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+
+#include "ns3/string.h"
+#include "ns3/time-data-calculators.h"
+#include "leo-input-fstream-container.h"
+
+namespace ns3
+{
+
+TypeId
+LeoWaypointInputFileStreamContainer::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::LeoWaypointInputFileStreamContainer")
+    .SetGroupName ("Leo")
+    .SetParent<Object> ()
+    .AddConstructor<LeoWaypointInputFileStreamContainer> ()
+    .AddAttribute ("File",
+    		   "The path to the file opened in the stream",
+    		   StringValue (),
+    		   MakeStringAccessor (&LeoWaypointInputFileStreamContainer::m_filePath),
+    		   MakeStringChecker ())
+    .AddAttribute ("LastTime",
+    		   "The minimum point in time for returned samples",
+    		   TimeValue (),
+    		   MakeTimeAccessor (&LeoWaypointInputFileStreamContainer::m_lastTime),
+    		   MakeTimeChecker ())
+    ;
+  return tid;
+}
+
+LeoWaypointInputFileStreamContainer::LeoWaypointInputFileStreamContainer () :
+  m_filePath (),
+  m_input ()
+{
+}
+
+LeoWaypointInputFileStreamContainer::LeoWaypointInputFileStreamContainer (string filePath, Time lastTime) :
+  m_filePath (filePath),
+  m_lastTime (lastTime)
+{
+}
+
+LeoWaypointInputFileStreamContainer::~LeoWaypointInputFileStreamContainer ()
+{
+  m_input.close ();
+}
+
+bool
+LeoWaypointInputFileStreamContainer::GetNextSample (Waypoint &sample)
+{
+  if (!m_input.is_open ())
+    {
+      m_input.open (m_filePath);
+    }
+
+  if (!m_input.is_open ())
+    {
+      NS_ABORT_MSG ("Input stream is not open");
+    }
+
+  if (m_input.bad ())
+    {
+      NS_ABORT_MSG ("Input stream is bad");
+    }
+
+  while (!m_input.eof () && sample.time < m_lastTime)
+    {
+      m_input >> sample;
+    }
+  m_lastTime = sample.time;
+
+  return m_input.good ();
+}
+
+void
+LeoWaypointInputFileStreamContainer::SetFile (const string path)
+{
+  m_input.close ();
+  m_filePath = path;
+  m_input.open (m_filePath);
+}
+
+string
+LeoWaypointInputFileStreamContainer::GetFile () const
+{
+  return m_filePath;
+}
+
+void
+LeoWaypointInputFileStreamContainer::SetLastTime (const Time lastTime)
+{
+  m_input.clear ();
+  m_input.seekg (0, std::ios::beg);
+  m_lastTime = lastTime;
+}
+
+Time
+LeoWaypointInputFileStreamContainer::GetLastTime () const
+{
+  return m_lastTime;
+}
+
+};