def profile
  @profile ||= reset_profile
end

def reset_profile
  @profile = nil
  set_profile DEFAULT_SPEEDPROFILE
end

def set_profile profile
  @profile = profile
end

def write_server_ini
  s=<<-EOF
  Threads = 1
  IP = 0.0.0.0
  Port = #{OSRM_PORT}

  hsgrData=#{@osm_file}.osrm.hsgr
  nodesData=#{@osm_file}.osrm.nodes
  edgesData=#{@osm_file}.osrm.edges
  ramIndex=#{@osm_file}.osrm.ramIndex
  fileIndex=#{@osm_file}.osrm.fileIndex
  namesData=#{@osm_file}.osrm.names
  timestamp=#{@osm_file}.osrm.timestamp
  EOF
  File.open( 'server.ini', 'w') {|f| f.write( s ) }
end