/// <summary>
/// Creates a new instance of the <see cref="BandwidthAnalyzer"/> class.
/// </summary>
public BandwidthAnalyzer()
{
_resultData = new BandwidthAnalizerResult();
InterfaceSelector = new InterfaceSelector();
_startAnalysisCommand = new Command(StartAnalysis, CanStartAnalysis);
_stopAnalysisCommand = new Command(StopAnalysis, CanStopAnalysis);
// hook on interfaces change for command refresh
InterfaceSelector.InterfacesChanged += (sender, e) => { UpdateCommands(); };
// just do the initial interface initialization
InterfaceSelector.RefreshInterfaces();
}
/// <summary>
/// Prepares everything to start the analysis
/// </summary>
private void StartAnalysis()
{
// create cancellation token
_cancellationTokenSource = new CancellationTokenSource();
// create SynchronizationContext
SynchronizationContext synchronizationContext = SynchronizationContext.Current;
// set working
Working = true;
// set empty
ResultData = new BandwidthAnalizerResult();
// start ping in interval
_workingTask = Repeat.Interval(TimeSpan.FromSeconds(2), () => { StartAnalysisInternal(synchronizationContext); }, _cancellationTokenSource.Token);
// continue with task setting falg to IsRunning false to know when task stoped
_workingTask = _workingTask.ContinueWith((previousTask) => {
if (previousTask.Status != TaskStatus.RanToCompletion)
{
Working = false;
}
}, TaskScheduler.FromCurrentSynchronizationContext());
}
/// <summary>
/// Does the analysis
/// </summary>
private void StartAnalysisInternal(SynchronizationContext synchronizationContext)
{
// get data
IPv4InterfaceStatistics interfaceStatistics = GetBandwidthData();
// create result
BandwidthAnalizerResult bandwidthAnalizerResult = null;
//// calculate speed
//if (_bytesReceived != 0 && _bytesSent != 0) {
// //int bytesReceivedSpeed = (int) (_bytesReceived - interfaceStatistics.BytesReceived) / 1024 / 1024;
// //int bytesSentSpeed = (int) (_bytesSent - interfaceStatistics.BytesSent) / 1024 / 1024;
// // create result
// bandwidthAnalizerResult = new BandwidthAnalizerResult(bytesSentSpeed, bytesReceivedSpeed);
//}
//else {
// // create result
// bandwidthAnalizerResult = new BandwidthAnalizerResult();
//}
//// remember current values
//_bytesReceived = interfaceStatistics.BytesReceived;
//_bytesSent = interfaceStatistics.BytesSent;
int bytesReceivedSpeed = (int)(interfaceStatistics.BytesReceived) / 1024 / 1024;
int bytesSentSpeed = (int)(interfaceStatistics.BytesSent) / 1024 / 1024;
// create result
bandwidthAnalizerResult = new BandwidthAnalizerResult(bytesSentSpeed, bytesReceivedSpeed);
// set result
synchronizationContext.Send((objState) => {
ResultData = bandwidthAnalizerResult;
}, synchronizationContext);
}
