/*

 * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.

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

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.io.ByteArrayInputStream;

import javax.sound.sampled.AudioFormat;

import javax.sound.sampled.AudioInputStream;

import javax.sound.sampled.AudioSystem;

import javax.sound.sampled.Clip;

import javax.sound.sampled.DataLine;

import javax.sound.sampled.LineUnavailableException;

import javax.sound.sampled.Mixer;

/**

 * @test

 * @bug 4946945

 * @summary Crash in javasound while running TicTacToe demo applet tiger b26

 */

public class ClipFlushCrash {

    static int frameCount = 441000; // lets say 10 seconds

    static AudioFormat format = new AudioFormat(44100.0f, 16, 2, true, false);

    static ByteArrayInputStream bais =

      new ByteArrayInputStream(new byte[frameCount * format.getFrameSize()]);

    static int success = 0;

    public static void run(Mixer m) {

        Clip clip = null;

        try {

            if (m == null) {

                out("Using default mixer");

                clip = (Clip) AudioSystem.getClip();

            } else {

                out("Using mixer: "+m);

                DataLine.Info info = new DataLine.Info(Clip.class, format, AudioSystem.NOT_SPECIFIED);

                clip = (Clip) m.getLine(info);

            }

            out(" got clip: "+clip);

            if (!clip.getClass().toString().contains("Direct")) {

                out(" no direct audio clip -> do not test.");

                return;

            }

            out(" open");

            bais.reset();

            clip.open(new AudioInputStream(bais, format, frameCount));

            AT at1 = new AT(clip, "flush thread", 123) {

                public void doAction() throws Exception {

                        log("flush");

                        clip.flush();

                }

            };

            AT at2 = new AT(clip, "setFramePosition thread", 67) {

                public void doAction() throws Exception {

                        int pos = (int) (Math.random() * clip.getFrameLength());

                        log("setPosition to frame "+pos);

                        clip.setFramePosition(pos);

                }

            };

            AT at3 = new AT(clip, "start/stop thread", 300) {

                public void doAction() throws Exception {

                        if (clip.isRunning()) {

                                log("stop");

                                clip.stop();

                        } else {

                                log("start");

                                clip.setFramePosition(0);

                                clip.start();

                        }

                }

            };

            AT at4 = new AT(clip, "open/close thread", 600) {

                public synchronized void doAction() throws Exception {

                        log("close");

                        clip.close();

                        wait(50);

                        if (!terminated) {

                                log("open");

                                bais.reset();

                                clip.open(new AudioInputStream(bais, format, frameCount));

                        }

                }

            };

            out(" clip.start");

            clip.start();

            out(" for 10 seconds, call start/stop, setFramePosition, and flush from other threads");

            at1.start();

            at2.start();

            at3.start();

            at4.start();

            try {

                Thread.sleep(10000);

            } catch (InterruptedException ie) {}

            out(" finished.");

                at1.terminate();

                at2.terminate();

                at3.terminate();

                at4.terminate();

            out(" clip.close()");

            clip.close();

            success++;

        } catch (LineUnavailableException luae) {

            // line not available, test not failed

            System.err.println(luae);

        } catch (IllegalArgumentException iae) {

            // line not available, test not failed

            System.err.println(iae);

        } catch (Throwable t) {

            t.printStackTrace();

        }

    }

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

        if (isSoundcardInstalled()) {

                bais.mark(0);

            run(null);

            Mixer.Info[] infos = AudioSystem.getMixerInfo();

            for (int i = 0; i<infos.length; i++) {

                try {

                        Mixer m = AudioSystem.getMixer(infos[i]);

                        run(m);

                } catch (Exception e) {

                }

            }

            if (success > 0) {

                out("No crash -> Test passed");

            } else {

                System.err.println("Test could not execute: please install an audio device");

            }

        }

    }

    /**

     * Returns true if at least one soundcard is correctly installed

     * on the system.

     */

    public static boolean isSoundcardInstalled() {

        boolean result = false;

        try {

            Mixer.Info[] mixers = AudioSystem.getMixerInfo();

            if (mixers.length > 0) {

                result = AudioSystem.getSourceDataLine(null) != null;

            }

        } catch (Exception e) {

            System.err.println("Exception occured: "+e);

        }

        if (!result) {

            System.err.println("Soundcard does not exist or sound drivers not installed!");

            System.err.println("This test requires sound drivers for execution.");

        }

        return result;

    }

    public static void out(String s) {

        /*long t = System.nanoTime() / 1000000l;

        String ts = ""+(t % 1000);

        while (ts.length() < 3) ts = "0"+ts;

        System.out.println(""+(t/1000)+":"+ts+" "+s);

        System.out.flush();*/

        System.out.println(s);

    }

    private abstract static class AT extends Thread {

        protected boolean terminated = false;

        protected Clip clip;

        private int waitTime;

        public AT(Clip clip, String name, int waitTime) {

                super(name);

                this.clip = clip;

                this.waitTime = waitTime;

        }

        public abstract void doAction() throws Exception;

                public void run() {

                        log("start");

                        while (!terminated) {

                                try {

                                        synchronized(this) {

                                            wait(waitTime);

                                        }

                                        if (!terminated) {

                                                doAction();

                                        }

                                } catch(Exception e) {

                                        log("exception: "+e);

                                }

                        }

                        log("exit");

                }

                public synchronized void terminate() {

                        log("terminate");

                        terminated = true;

                        notifyAll();

                }

        protected void log(String s) {

            //out("   "+Thread.currentThread().getId()+" "+getName()+": "+s);

            out("   "+getName()+": "+s);

        }

    }

}