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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 *

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/*

 * @test TestConcurrentPhaseControlG1

 * @bug 8169517

 * @requires vm.gc.G1

 * @summary Test of WhiteBox concurrent GC phase control for G1.

 * @key gc

 * @modules java.base

 * @library /test/lib /

 * @build sun.hotspot.WhiteBox

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 *    sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run driver TestConcurrentPhaseControlG1

 */

import gc.concurrent_phase_control.CheckControl;

public class TestConcurrentPhaseControlG1 {

    // Pairs of phase name and regex to match log stringm for stepping through,

    private static final String[][] g1PhaseInfo = {

        // Step through the phases in order.

        {"IDLE", null},

        {"CONCURRENT_CYCLE", "Concurrent Cycle"},

        {"IDLE", null},  // Resume IDLE before testing subphases

        {"CLEAR_CLAIMED_MARKS", "Concurrent Clear Claimed Marks"},

        {"SCAN_ROOT_REGIONS", "Concurrent Scan Root Regions"},

        // ^F so not "From Roots", ^R so not "Restart"

        {"CONCURRENT_MARK", "Concurrent Mark [^FR]"},

        {"IDLE", null},  // Resume IDLE before testing subphases

        {"MARK_FROM_ROOTS", "Concurrent Mark From Roots"},

        {"BEFORE_REMARK", null},

        {"REMARK", "Pause Remark"},

        {"CREATE_LIVE_DATA", "Concurrent Create Live Data"},

        // "COMPLETE_CLEANUP",  -- optional phase, not reached by this test

        {"CLEANUP_FOR_NEXT_MARK", "Concurrent Cleanup for Next Mark"},

        // Clear request

        {"IDLE", null},

        {"ANY", null},

        // Request a phase.

        {"MARK_FROM_ROOTS", "Concurrent Mark From Roots"},

        // Request an earlier phase, to ensure loop rather than stuck at idle.

        {"SCAN_ROOT_REGIONS", "Concurrent Scan Root Regions"},

        // Clear request, to unblock service.

        {"IDLE", null},

        {"ANY", null},

    };

    private static final String[] g1Options =

        new String[]{"-XX:+UseG1GC",  "-Xlog:gc,gc+marking"};

    private static final String g1Name = "G1";

    public static void main(String[] args) throws Exception {

        CheckControl.check(g1Name, g1Options, g1PhaseInfo);

    }

}