private static extern int ToUnixSocketFlags (Int32 value, out UnixSocketFlags rval);
		public static bool TryToUnixSocketFlags (Int32 value, out UnixSocketFlags rval)
		{
			return ToUnixSocketFlags (value, out rval) == 0;
		}
		public static Int32 FromUnixSocketFlags (UnixSocketFlags value)
		{
			Int32 rval;
			if (FromUnixSocketFlags (value, out rval) == -1)
				ThrowArgumentException (value);
			return rval;
		}
		public static bool TryFromUnixSocketFlags (UnixSocketFlags value, out Int32 rval)
		{
			return FromUnixSocketFlags (value, out rval) == 0;
		}
		private static extern int FromUnixSocketFlags (UnixSocketFlags value, out Int32 rval);
 public static bool TryFromUnixSocketFlags(UnixSocketFlags value, out Int32 rval)
 {
     return(FromUnixSocketFlags(value, out rval) == 0);
 }
 private static extern int FromUnixSocketFlags(UnixSocketFlags value, out Int32 rval);