/// <summary>
/// Reads the given input stream, asynchronously (in the ITC sense, not the .Net sense). Should not be called while
/// Running.
/// </summary>
/// <remarks>All output streams are automatically set to their associated ExternalDevice's Background value on stop</remarks>
/// <param name="daqInputStream">IDAQInputStream to read</param>
/// <returns>IInputData with a single read sample</returns>
/// <exception cref="ArgumentException">If the given stream is not an input stream belonging to this HekaDAQController</exception>"
public IInputData ReadStreamAsyncIO(IDAQInputStream daqInputStream)
{
if (!InputStreams.Contains(daqInputStream))
{
throw new ArgumentException("Input stream is not present on this device.", "daqInputStream");
}
var instream = daqInputStream as HekaDAQInputStream;
if (instream != null)
{
return(Device.ReadStreamAsyncIO(instream));
}
return(null);
}
internal void InitializeStreams()
{
logService.Write(InputStreams.Count > 0 ? LogEntryType.Info : LogEntryType.Warning, "Found {0} input stream{1}...", InputStreams.Count, InputStreams.Count == 1 ? "" : "s");
// iterate from the back to be able to remove a stream if it fails to initialize
for (int i = InputStreams.Count - 1; i >= 0; i--)
{
try
{
InputStreams[i].Initialize(streamService);
logService.Write("'{0}' initialized", InputStreams[i].Name);
}
catch (Exception ex)
{
logService.Write(LogEntryType.Error, "Initializing input stream '{0}' failed: {1}", InputStreams[i].Name, ex.Message);
InputStreams.Remove(InputStreams[i]);
}
}
// order by name
InputStreams = InputStreams.OrderBy(i => i.Name).ToList();
}
