001/*
002 * $Id: PreemptStatus.java 5999 2020-03-17 15:44:50Z kredel $
003 */
004
005package edu.jas.kern;
006
007
008/**
009 * PreemptStatus, defines global status for preemptive interruption handling.
010 * @author Heinz Kredel
011 */
012
013public class PreemptStatus {
014
015
016    /**
017     * Global status flag.
018     */
019    private static boolean allowPreempt = true;
020
021
022    /**
023     * No public constructor.
024     */
025    protected PreemptStatus() {
026    }
027
028
029    /**
030     * isAllowed.
031     * @return true, preemtive interruption is allowed, else false.
032     */
033    public static boolean isAllowed() {
034        return allowPreempt;
035    }
036
037
038    /**
039     * setAllow, set preemtive interruption to allowed status.
040     */
041    public static void setAllow() {
042        allowPreempt = true;
043    }
044
045
046    /**
047     * setNotAllow, set preemtive interruption to not allowed status.
048     */
049    public static void setNotAllow() {
050        allowPreempt = false;
051    }
052
053}