private async void ReadAndPlot()
{
bool viewChanged = false;
bool getLock = false;
try
{
_statusLock.Enter(ref getLock);
if (_samplesPerView != _globalInfo.SamplesPerView)
{
RefreshRunTimeParameters();
viewChanged = true;
}
_globalInfo.AITask.ReadData(ref _aiData, _samplesPerView, _timeOut);
_globalInfo.Status = TaskStatus.Running;
}
catch (Exception ex)
{
// 如果是超时错误则继续执行
if (ex.Message.Contains("TimeOut"))
{
return;
}
throw;
}
finally
{
if (getLock)
{
_statusLock.Exit();
}
}
// 不暂停状态下需要更新数据和函数缓存
if (_globalInfo.IsRunning)
{
Task transposeTask = null;
transposeTask = Task.Run((Action)TransposeDataToCache);
_globalInfo.SamplesInChart = _samplesPerView;
_parentForm.Invoke(_globalInfo.WaveformPlot, this._aiData, _xStart, _xIncrement, _globalInfo.SamplesInChart);
if (viewChanged)
{
_parentForm.Invoke(new Action(_parentForm.RefreshStatusLabel));
}
await transposeTask;
}
}
private void TaskWork()
{
while (true)
{
try
{
ReadAndPlot();
}
catch (Exception ex)
{
if (TaskRunning)
{
Stop();
_globalInfo.Status = TaskStatus.Error;
_parentForm.Invoke(_showErrMethod, ex.Message, "Task Error");
}
// not need
// if (ex is ThreadAbortException)
// {
// break;
// }
}
}
}
