public static void LogPacketHeader(bool incoming, uint circuit, byte flags, PacketType packetType, ushort size)
{
if (!m_shouldCollectStats) return;
// Binary logging format is TTTTTTTTCCCCFPPPSS, T=Time, C=Circuit, F=Flags, P=PacketType, S=size
// Put the incoming bit into the least significant bit of the flags byte
if (incoming)
flags |= 0x01;
else
flags &= 0xFE;
// Put the flags byte into the most significant bits of the type integer
uint type = (uint)packetType;
type |= (uint)flags << 24;
// m_log.Debug("1 LogPacketHeader(): Outside lock");
lock (binStatsLogLock)
{
DateTime now = DateTime.Now;
// m_log.Debug("2 LogPacketHeader(): Inside lock. now is " + now.Ticks);
try
{
if (PacketLog == null || (now > PacketLog.StartTime + binStatsMaxFilesize))
{
if (PacketLog != null && PacketLog.Log != null)
{
PacketLog.Log.Close();
}
// First log file or time has expired, start writing to a new log file
PacketLog = new PacketLogger();
PacketLog.StartTime = now;
PacketLog.Path = (binStatsDir.Length > 0 ? binStatsDir + System.IO.Path.DirectorySeparatorChar.ToString() : "")
+ String.Format("packets-{0}.log", now.ToString("yyyyMMddHHmmss"));
PacketLog.Log = new BinaryWriter(File.Open(PacketLog.Path, FileMode.Append, FileAccess.Write));
}
// Serialize the data
byte[] output = new byte[18];
Buffer.BlockCopy(BitConverter.GetBytes(now.Ticks), 0, output, 0, 8);
Buffer.BlockCopy(BitConverter.GetBytes(circuit), 0, output, 8, 4);
Buffer.BlockCopy(BitConverter.GetBytes(type), 0, output, 12, 4);
Buffer.BlockCopy(BitConverter.GetBytes(size), 0, output, 16, 2);
// Write the serialized data to disk
if (PacketLog != null && PacketLog.Log != null)
PacketLog.Log.Write(output);
}
catch (Exception ex)
{
m_log.Error("Packet statistics gathering failed: " + ex.Message, ex);
if (PacketLog.Log != null)
{
PacketLog.Log.Close();
}
PacketLog = null;
}
}
}