/// <summary>
/// Closes the device.
/// </summary>
/// <returns></returns>
public async Task CloseAsync()
{
if (m_cts != null)
{
if (m_cts != null)
{
m_cts.Cancel();
}
m_cts = null;
}
if (m_ParserTask != null)
{
await m_ParserTask;
}
if (m_stream != null)
{
await CloseStreamAsync(m_stream);
}
MultiPartMessageCache.Clear();
m_stream = null;
lock (m_lockObject)
{
m_isOpening = false;
IsOpen = false;
}
}
/// <summary>
/// Opens the device connection.
/// </summary>
/// <returns></returns>
public async Task OpenAsync()
{
lock (m_lockObject)
{
if (IsOpen)
{
return;
}
IsOpen = true;
}
m_cts = new System.Threading.CancellationTokenSource();
m_stream = await OpenStreamAsync();
StartParser();
MultiPartMessageCache.Clear();
}
/// <summary>
/// Closes the device.
/// </summary>
/// <returns></returns>
public async Task CloseAsync()
{
if (m_cts != null)
{
closeTask = new TaskCompletionSource <bool>();
if (m_cts != null)
{
m_cts.Cancel();
}
m_cts = null;
}
await closeTask.Task;
await CloseStreamAsync(m_stream);
MultiPartMessageCache.Clear();
m_stream = null;
lock (m_lockObject)
IsOpen = false;
}
/// <summary>
/// Opens the device connection.
/// </summary>
/// <returns></returns>
public async Task OpenAsync()
{
lock (m_lockObject)
{
if (IsOpen || m_isOpening)
{
return;
}
m_isOpening = true;
}
m_cts = new CancellationTokenSource();
m_stream = await OpenStreamAsync();
StartParser(m_cts.Token);
MultiPartMessageCache.Clear();
lock (m_lockObject)
{
IsOpen = true;
m_isOpening = false;
}
}