private async Task ResizeTask()
{
while (true)
{
TimeSpan delay;
TerminalSize size = null;
lock (_resizeLock)
{
if (_requestedSize?.EquivalentTo(_setSize) ?? true)
{
// Resize finished. Unblock output and exit.
if (_outputBlockedBuffer != null)
{
OnOutput?.Invoke(this, _outputBlockedBuffer.ToArray());
_outputBlockedBuffer.Dispose();
_outputBlockedBuffer = null;
}
_resizeTask = null;
break;
}
delay = _resizeScheduleTime.Subtract(DateTime.UtcNow);
// To avoid sleeping for only few milliseconds we're introducing a threshold of 10 milliseconds
if (delay.TotalMilliseconds < 10)
{
_setSize = size = _requestedSize;
if (_outputBlockedBuffer == null)
{
_outputBlockedBuffer = new MemoryStream();
}
}
}
if (size == null)
{
await Task.Delay(delay).ConfigureAwait(false);
}
else
{
await ViewModel.Terminal.SetSizeAsync(_requestedSize).ConfigureAwait(false);
}
}
}
// Must be called from a code locked with _resizeLock
private void ScheduleResize(TerminalSize size, bool scheduleIfEqual)
{
if (!scheduleIfEqual && size.EquivalentTo(_requestedSize))
{
return;
}
_requestedSize = size;
_resizeScheduleTime = DateTime.UtcNow.Add(ResizeDelay);
if (_resizeTask == null)
{
_resizeTask = ResizeTask();
}
}
