1 /* 2 * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import javax.sound.midi.MidiDevice; 25 import javax.sound.midi.MidiSystem; 26 import javax.sound.midi.Sequencer; 27 import javax.sound.midi.Synthesizer; 28 29 /** 30 * @test 31 * @bug 4914667 32 * @summary Closing and reopening MIDI IN device on Linux throws 33 * MidiUnavailableException 34 */ 35 public class Reopen { 36 37 private static boolean isTestExecuted; 38 private static boolean isTestPassed; 39 40 /* 41 * run manually: 42 * java Reopen 100 in for 100 iterations on the MIDI IN device 43 * java Reopen 16 out for 16 iterations on the MIDI OUT device 44 */ main(String[] args)45 public static void main(String[] args) throws Exception { 46 if (args.length == 0) { 47 doAllTests(); 48 } else if (args.length == 2) { 49 int numIterations = Integer.parseInt(args[0]); 50 if (args[1].equals("in")) { 51 doTest(numIterations, true); 52 } else { 53 doTest(numIterations, false); 54 } 55 } else { 56 out("usage: java Reopen <iterations> in|out"); 57 } 58 } 59 doAllTests()60 private static void doAllTests() throws Exception { 61 out("#4914667: Closing and reopening MIDI IN device on Linux throws MidiUnavailableException"); 62 boolean success = true; 63 try { 64 success &= doTest(20, true); // MIDI IN 65 success &= doTest(20, false); // MIDI OUT 66 isTestExecuted = true; 67 } catch (Exception e) { 68 out(e); 69 isTestExecuted = false; 70 } 71 isTestPassed = success; 72 if (isTestExecuted) { 73 if (isTestPassed) { 74 out("Test PASSED."); 75 } else { 76 throw new Exception("Test FAILED."); 77 } 78 } else { 79 out("Test NOT FAILED"); 80 } 81 } 82 doTest(int numIterations, boolean input)83 private static boolean doTest(int numIterations, boolean input) throws Exception { 84 MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo(); 85 MidiDevice outDevice = null; 86 MidiDevice inDevice = null; 87 for (int i = 0; i < infos.length; i++) { 88 MidiDevice device = MidiSystem.getMidiDevice(infos[i]); 89 if (! (device instanceof Sequencer) && 90 ! (device instanceof Synthesizer)) { 91 if (device.getMaxReceivers() != 0) { 92 outDevice = device; 93 } 94 if (device.getMaxTransmitters() != 0) { 95 inDevice = device; 96 } 97 } 98 } 99 MidiDevice testDevice = null; 100 if (input) { 101 testDevice = inDevice; 102 } else { 103 testDevice = outDevice; 104 } 105 if (testDevice == null) { 106 out("Cannot test: device not available."); 107 return true; 108 } 109 out("Using Device: " + testDevice); 110 111 for (int i = 0; i < numIterations; i++) { 112 out("@@@ ITERATION: " + i); 113 testDevice.open(); 114 // This sleep ensures that the thread of MidiInDevice is started. 115 sleep(50); 116 testDevice.close(); 117 } 118 return true; 119 } 120 sleep(int milliseconds)121 private static void sleep(int milliseconds) { 122 try { 123 Thread.sleep(milliseconds); 124 } catch (InterruptedException e) { 125 } 126 } 127 out(Throwable t)128 private static void out(Throwable t) { 129 t.printStackTrace(System.out); 130 } 131 out(String message)132 private static void out(String message) { 133 System.out.println(message); 134 } 135 } 136