- * function returns one immediately. If it times out, it returns
- * a value greater than zero. An error code less than zero
- * indicates an error (most likely a pending signal), and the
- * calling code should finish what it's doing as soon as it can.
+ * function returns zero immediately. If it times out, it returns
+ * one. An error code less than zero indicates an error (most
+ * likely a pending signal), and the calling code should finish
+ * what it's doing as soon as it can.