1 /* 2 * Copyright (c) 2019, 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 /* @test 25 * @bug 8184157 26 * @summary Ensure that correct PendingFuture is used in Iocp completion status event handler 27 * @requires (os.family == "windows") 28 */ 29 30 import java.nio.ByteBuffer; 31 import java.nio.channels.AsynchronousFileChannel; 32 import java.nio.channels.FileLock; 33 import java.nio.file.Files; 34 import java.nio.file.Path; 35 import java.nio.file.Paths; 36 37 import static java.nio.file.StandardOpenOption.*; 38 39 public class LockReadWriteStressTest { 40 public static void main(String[] args) throws Exception { 41 Path path = Path.of("blah"); 42 ByteBuffer buf = ByteBuffer.allocate(16); 43 for (int i=0; i < 1000; i++) { 44 try (AsynchronousFileChannel ch = AsynchronousFileChannel.open(path,READ, WRITE, CREATE)) { 45 FileLock lock = ch.lock().get(); 46 ch.read(buf, 0).get(); 47 buf.rewind(); 48 ch.write(buf, 0).get(); 49 lock.release(); 50 buf.clear(); 51 } 52 } 53 } 54 }