root/usr/src/cmd/dtrace/test/tst/common/java_api/src/TestClose.java
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

import org.opensolaris.os.dtrace.*;

/**
 * Regression for bug 6419880 close() hangs running consumer.
 */
public class TestClose {
    public static void
    main(String[] args)
    {
        Consumer consumer = new LocalConsumer();

        try {
            consumer.open();
            consumer.compile("syscall:::entry { @[execname] = count(); } " +
                    "tick-101ms { printa(@); }");
            consumer.enable();
            consumer.go();
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
                System.exit(1);
            }
            consumer.close();
        } catch (DTraceException e) {
            e.printStackTrace();
            System.exit(1);
        }

        consumer = new LocalConsumer();

        try {
            consumer.open();
            consumer.compile("syscall:::entry { @[execname] = count(); } " +
                    "tick-101ms { printa(@); }");
            consumer.enable();
            consumer.go();
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
                System.exit(1);
            }
            try {
                // Test new rule that close() is illegal while holding
                // lock on consumer.
                synchronized (consumer) {
                    consumer.close();
                }
            } catch (IllegalThreadStateException e) {
                consumer.close();
                System.out.println("Successful");
                System.exit(0);
            }
        } catch (DTraceException e) {
            e.printStackTrace();
            System.exit(1);
        }
        System.err.println("Failed");
        System.exit(1);
    }
}