static OverlappedStreamUnbuffered()
 {
     NativeMethods.SYSTEM_INFO sysInfo = new NativeMethods.SYSTEM_INFO();
     NativeMethods.GetSystemInfo(ref sysInfo);
     _systemPageSize = sysInfo.dwPageSize;
 }
		static OverlappedStreamUnbuffered() {
			NativeMethods.SYSTEM_INFO sysInfo = new NativeMethods.SYSTEM_INFO();
			NativeMethods.GetSystemInfo(ref sysInfo);
			_systemPageSize = sysInfo.dwPageSize;
		}