public static void Start(string address, CancellationToken cancellationToken)
{
PingAttributes attrs = new PingAttributes();
RateLimiter displayUpdateLimiter = new RateLimiter(TimeSpan.FromMilliseconds(500));
ulong previousPingsSent = 0;
Ping p = new Ping(cancellationToken);
// Verify address
attrs.Address = Lookup.QueryDNS(address, AddressFamily.InterNetwork);;
// Setup ping attributes
attrs.Interval = 0;
attrs.Timeout = 100;
attrs.Message = "R U Dead Yet?";
// TODO: Option for 'heavy' flood with bloated packet sizes
attrs.Continous = true;
// Disable output for faster speeds
Display.ShowOutput = false;
// This callback will run after each ping iteration
void ResultsUpdateCallback(PingResults r)
{
// Make sure we're not updating the display too frequently
if (!displayUpdateLimiter.RequestRun())
{
return;
}
// Calculate pings per second
double pingsPerSecond = 0;
if (displayUpdateLimiter.ElapsedSinceLastRun != TimeSpan.Zero)
{
pingsPerSecond = (r.Sent - previousPingsSent) / displayUpdateLimiter.ElapsedSinceLastRun.TotalSeconds;
}
previousPingsSent = r.Sent;
// Update results text
Display.FloodProgress(r.Sent, (ulong)Math.Round(pingsPerSecond), address);
}
// Start flooding
PingResults results = p.Send(attrs, ResultsUpdateCallback);
// Display results
Display.ShowOutput = true;
Display.PingResults(attrs, results);
}
/// <summary>
/// Stores graph drawing loop
/// </summary>
private void Draw()
{
// The actual display update rate may be limited by the ping interval
RateLimiter displayUpdateLimiter = new RateLimiter(TimeSpan.FromMilliseconds(500));
// This callback will run after each ping iteration
void ResultsUpdateCallback(PingResults r)
{
// Make sure we're not updating the display too frequently
if (!displayUpdateLimiter.RequestRun())
{
return;
}
int scalePrevious = m_Scale;
// Reset position
Console.CursorTop = m_PlotStartY;
Console.CursorLeft = m_PlotStartX;
// Update labels
UpdateLegend(r);
// Get results from ping and add to graph
AddResponseToGraph(r.CurrTime);
// Draw graph columns
DrawColumns();
// Only draw the y axis labels if the scale has changed
if (scalePrevious != m_Scale)
{
DrawYAxisLabels();
}
Console.CursorTop = EndCursorPosY;
}
// Start pinging
PingResults results = m_Ping.Send(m_PingAttributes, ResultsUpdateCallback);
}
