public void Start(IPEndPoint traceEP, IPAddress traceAdapter, NetTraceSinkDelegate onReceive)
{
lock (syncLock)
{
sock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, 1);
sock.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
sock.Bind(new IPEndPoint(traceAdapter, traceEP.Port));
if (traceAdapter.Equals(IPAddress.Any))
{
sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(traceEP.Address));
}
else
{
sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership,
new MulticastOption(traceEP.Address, traceAdapter));
}
sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 5);
sock.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastLoopback, 1);
this.onReceive = onReceive;
this.recvBuf = new byte[NetTracePacket.MaxPacket];
this.recvEP = new IPEndPoint(IPAddress.Any, 0);
this.onSockRecv = new AsyncCallback(OnSockReceive);
this.recvQueue = new Queue(10000);
this.timer = new GatedTimer(new TimerCallback(OnTimer), null, TimeSpan.FromSeconds(0.5), TimeSpan.FromSeconds(0.5));
sock.BeginReceiveFrom(recvBuf, 0, recvBuf.Length, SocketFlags.None, ref recvEP, onSockRecv, null);
}
}
/// <summary>
/// Initialization for Windows.
/// </summary>
private static void InitWindows()
{
timer = new GatedTimer(new TimerCallback(OnTimer), null, TimeSpan.FromMinutes(5), TimeSpan.FromMinutes(5));
lastCount = (uint)Environment.TickCount;
year = TimeSpan.FromDays(365);
// Initialize this such that the first time returned by Now
// will be quite a long time after DateTime.MinValue.
msi = (ulong)(TimeSpan.TicksPerDay * 365 / TimeSpan.TicksPerMillisecond);
msi &= 0xFFFFFFFF00000000;
// Get the timer resolution for the current machine.
#if MOBILE_DEVICE
resolution = TimeSpan.FromMilliseconds(15); // Guessing this
#else
uint timeAdjustment;
uint timeIncrement;
bool timeAdjustmentDisabled;
if (WinApi.GetSystemTimeAdjustment(out timeAdjustment, out timeIncrement, out timeAdjustmentDisabled) == 0)
{
resolution = TimeSpan.Zero;
SysLog.LogError("Windows Error [{0}] obtaining system timer resolution. All subsequent calls to SysTime will fail.", WinApi.GetLastError());
}
else
{
resolution = TimeSpan.FromTicks(timeIncrement);
}
#endif
}
public void Stop(object o)
{
lock (syncLock)
{
if (sock != null)
{
timer.Dispose();
timer = null;
recvQueue.Clear();
recvQueue = null;
sock.Close();
sock = null;
}
}
}
/// <summary>
/// Static constructor.
/// </summary>
static AsyncTimer()
{
pending = new LinkedList <AsyncTimerResult>();
period = TimeSpan.FromMilliseconds(500);
timer = new GatedTimer(new TimerCallback(OnTimer), null, period);
}
