public static void UpdateExtendedTcpTable(bool sorted, IpHelper.TcpTableType tabletype)
{
TcpRows.Clear();
IntPtr tcpTable = IntPtr.Zero;
int tcpTableLength = 0;
if (IpHelper.GetExtendedTcpTable(tcpTable, ref tcpTableLength, sorted, IpHelper.AfInet, tabletype, 0) != 0)
{
try
{
tcpTable = Marshal.AllocHGlobal(tcpTableLength);
if (IpHelper.GetExtendedTcpTable(tcpTable, ref tcpTableLength, true, IpHelper.AfInet, tabletype, 0) == 0)
{
IpHelper.TcpTable table = (IpHelper.TcpTable)Marshal.PtrToStructure(tcpTable, typeof(IpHelper.TcpTable));
IntPtr rowPtr = (IntPtr)((long)tcpTable + Marshal.SizeOf(table.Length));
for (int i = 0; i < table.Length; ++i)
{
TcpRows.Add(new TcpRow((IpHelper.TcpRow)Marshal.PtrToStructure(rowPtr, typeof(IpHelper.TcpRow))));
rowPtr = (IntPtr)((long)rowPtr + Marshal.SizeOf(typeof(IpHelper.TcpRow)));
}
}
}
finally
{
if (tcpTable != IntPtr.Zero)
{
Marshal.FreeHGlobal(tcpTable);
}
}
}
}
internal static extern uint GetExtendedTcpTable(IntPtr tcpTable, ref int tcpTableLength, bool sort, int ipVersion, IpHelper.TcpTableType tcpTableType, int reserved);