/// <summary>
/// Closes this adapter
/// </summary>
public virtual void Close()
{
if (PcapHandle == IntPtr.Zero)
{
return;
}
if (Started)
{
StopCapture();
}
SafeNativeMethods.pcap_close(PcapHandle);
PcapHandle = IntPtr.Zero;
//Remove event handlers
if (OnPacketArrival != null)
{
foreach (Pcap.PacketArrivalEvent pa in OnPacketArrival.GetInvocationList())
{
OnPacketArrival -= pa;
}
}
if (OnPcapStatistics != null)
{
foreach (Pcap.PcapStatisticsEvent pse in OnPcapStatistics.GetInvocationList())
{
OnPcapStatistics -= pse;
}
}
}
/// <summary>
/// Closes this adapter
/// </summary>
public virtual void Close()
{
if (PcapHandle == IntPtr.Zero)
{
return;
}
if (Started)
{
try
{
StopCapture();
}
catch (Exception) { }
}
LibPcapSafeNativeMethods.pcap_close(PcapHandle);
PcapHandle = IntPtr.Zero;
//Remove event handlers
if (OnPacketArrival != null)
{
foreach (PacketArrivalEventHandler pa in OnPacketArrival.GetInvocationList())
{
OnPacketArrival -= pa;
}
}
}
/// <summary>
/// </summary>
/// <returns>0 for no data present, 1 if a packet was read, negative upon error</returns>
private GetPacketStatus SendPacketArrivalEvent()
{
PacketCapture e;
var retval = GetNextPacket(out e);
if (retval == GetPacketStatus.PacketRead)
{
OnPacketArrival?.Invoke(this, e);
}
return(retval);
}
protected void CaptureThread(CancellationToken cancellationToken)
{
try
{
while (!cancellationToken.IsCancellationRequested)
{
var packet = GetNextPacket();
if (packet == null)
{
break;
}
OnPacketArrival?.Invoke(this, new CaptureEventArgs(packet, this));
}
OnCaptureStopped?.Invoke(this, CaptureStoppedEventStatus.CompletedWithoutError);
}
catch (Exception ex)
{
LastError = ex.Message;
OnCaptureStopped?.Invoke(this, CaptureStoppedEventStatus.ErrorWhileCapturing);
}
}
protected void CaptureThread(CancellationToken cancellationToken)
{
try
{
while (!cancellationToken.IsCancellationRequested)
{
var packets = new List <PacketRecord>(WINDIVERT_BATCH_MAX);
var retval = GetNextPackets(packets, WINDIVERT_BATCH_MAX);
if (retval == GetPacketStatus.PacketRead)
{
foreach (var p in packets)
{
OnPacketArrival?.Invoke(this, p.GetPacketCapture(this));
}
}
}
OnCaptureStopped?.Invoke(this, CaptureStoppedEventStatus.CompletedWithoutError);
}
catch (Exception ex)
{
LastError = ex.Message;
OnCaptureStopped?.Invoke(this, CaptureStoppedEventStatus.ErrorWhileCapturing);
}
}
/// <summary>
/// Notify the OnPacketArrival delegates about a newly captured packet
/// </summary>
/// <param name="p">
/// A <see cref="RawCapture"/>
/// </param>
protected virtual void SendPacketArrivalEvent(RawCapture p)
{
OnPacketArrival?.Invoke(this, new CaptureEventArgs(p, this));
}
/// <summary>
/// Notify the OnPacketArrival delegates about a newly captured packet
/// </summary>
/// <param name="header"></param>
/// <param name="data"></param>
protected virtual void SendPacketArrivalEvent(PcapHeader header, Span <byte> data)
{
OnPacketArrival?.Invoke(this, new PacketCapture(this, header, data));
}
