private void Init(string url, uint conv)
{
if (conv == 0)
{
PlatDependant.LogError("KCP conversation id should not be 0.");
}
_Connection = new UDPClient(url);
_Conv = conv;
_ConnectionHandle = GCHandle.Alloc(_Connection);
_KCP = KCPLib.kcp_create(conv, (IntPtr)_ConnectionHandle);
_KCP.kcp_setoutput(Func_KCPOutput);
_KCP.kcp_nodelay(1, 10, 2, 1);
// set minrto to 10?
_Connection.UpdateInterval = 10;
_Connection.PreDispose = _con => DisposeSelf();
_Connection.OnReceive = (data, cnt, sender) => _KCP.kcp_input(data, cnt);
_Connection.OnSend = (data, cnt) =>
{
if (cnt > CONST.MTU)
{
int offset = 0;
var buffer = BufferPool.GetBufferFromPool();
while (cnt > CONST.MTU)
{
Buffer.BlockCopy(data, offset, buffer, 0, CONST.MTU);
_KCP.kcp_send(buffer, CONST.MTU);
cnt -= CONST.MTU;
offset += CONST.MTU;
}
if (cnt > 0)
{
Buffer.BlockCopy(data, offset, buffer, 0, cnt);
_KCP.kcp_send(buffer, cnt);
}
BufferPool.ReturnBufferToPool(buffer);
}
else
{
_KCP.kcp_send(data, cnt);
}
return(true);
};
_Connection.OnUpdate = _con =>
{
_KCP.kcp_update((uint)Environment.TickCount);
int recvcnt = _KCP.kcp_recv(_RecvBuffer, CONST.MTU);
if (_OnReceive != null)
{
if (recvcnt > 0)
{
_OnReceive(_RecvBuffer, recvcnt, _Connection.RemoteEndPoint);
}
}
};
}
private static int KCPOutput(IntPtr buf, int len, KCPLib.Connection kcp, IntPtr user)
{
try
{
var gchandle = (GCHandle)user;
var info = gchandle.Target as KCPServerConnectionInfo;
if (info != null && info.EP != null)
{
var buffer = BufferPool.GetBufferFromPool(len);
Marshal.Copy(buf, buffer, 0, len);
info.Server._Connection.SendRaw(buffer, len, info.EP, success => BufferPool.ReturnBufferToPool(buffer));
}
}
catch (Exception e)
{
PlatDependant.LogError(e);
}
return(0);
}
private static int KCPOutput(IntPtr buf, int len, KCPLib.Connection kcp, IntPtr user)
{
try
{
var gchandle = (GCHandle)user;
var connection = gchandle.Target as UDPClient;
if (connection != null)
{
var buffer = BufferPool.GetBufferFromPool(len);
Marshal.Copy(buf, buffer, 0, len);
connection.SendRaw(buffer, len, success => BufferPool.ReturnBufferToPool(buffer));
}
}
catch (Exception e)
{
PlatDependant.LogError(e);
}
return(0);
}
