protected void BackgroundThread(Object o)
{
LivePacketDevice dev = o as LivePacketDevice;
DeviceControlBlock info = ExtraInfos[dev.Name];
while (!info.BackgroundThreadStop)
{
bool shouldSleep = true;
lock (info.QueueLock)
{
if (info.PacketQueue.Count != 0)
{
shouldSleep = false;
}
}
if (shouldSleep)
{
System.Threading.Thread.Sleep(1000);
}
else // should process the queue
{
List <Packet> ourQueue;
lock (info.QueueLock)
{
// swap queues, giving the capture callback a new one
ourQueue = info.PacketQueue;
info.PacketQueue = new List <Packet>();
}
StatisticsInfo ourStat = new StatisticsInfo(0, 0);
double totbit = 0;
DateTime earlist = DateTime.MaxValue;
DateTime latest = DateTime.MinValue;
foreach (var pk in ourQueue)
{
// Timestamp and length.
if (pk.Timestamp < earlist)
{
earlist = pk.Timestamp;
}
if (pk.Timestamp > latest)
{
latest = pk.Timestamp;
}
totbit += pk.Length * 8;
ourStat.CInfo += SingleAnalyzer.SortPacket(pk);
}
if (info.LastTimestamp != DateTime.MinValue)
{
double delay = (latest - info.LastTimestamp).TotalMilliseconds;
ourStat.Bps = totbit * 1000 / delay;
ourStat.Pps = ourQueue.Count * 1000 / delay;
}
else
{
ourStat.Bps = ourStat.Pps = 0;
}
info.LastTimestamp = latest;
_Statistics[dev.Name] = ourStat;
}
}
}
public MetaPacket(Packet pk)
{
Length = pk.Length * 8;
Timestamp = pk.Timestamp;
Cinfo = SingleAnalyzer.SortPacket(pk);
}