1 /* 2 * Copyright (c) 2002, 2010, 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 * @summary Test selection of ready pipe 26 */ 27 28 import java.io.*; 29 import java.nio.ByteBuffer; 30 import java.nio.channels.*; 31 import java.nio.channels.spi.SelectorProvider; 32 import java.util.Random; 33 34 /** 35 * Testing PipeChannel 36 */ 37 public class SelectPipe { 38 39 private static Random generator = new Random(); 40 41 public static void main(String[] args) throws Exception { 42 43 SelectorProvider sp = SelectorProvider.provider(); 44 Selector selector = Selector.open(); 45 Pipe p = sp.openPipe(); 46 Pipe.SinkChannel sink = p.sink(); 47 Pipe.SourceChannel source = p.source(); 48 49 source.configureBlocking(false); 50 sink.configureBlocking(false); 51 52 SelectionKey readkey = source.register(selector, SelectionKey.OP_READ); 53 SelectionKey writekey = sink.register(selector, SelectionKey.OP_WRITE); 54 55 ByteBuffer outgoingdata = ByteBuffer.allocateDirect(10); 56 byte[] someBytes = new byte[10]; 57 generator.nextBytes(someBytes); 58 outgoingdata.put(someBytes); 59 outgoingdata.flip(); 60 61 int totalWritten = 0; 62 while (totalWritten < 10) { 63 int written = sink.write(outgoingdata); 64 if (written < 0) 65 throw new Exception("Write failed"); 66 totalWritten += written; 67 } 68 69 if (selector.select(1000) == 0) { 70 throw new Exception("test failed"); 71 } 72 73 ByteBuffer incomingdata = ByteBuffer.allocateDirect(10); 74 int totalRead = 0; 75 do { 76 int bytesRead = source.read(incomingdata); 77 if (bytesRead > 0) 78 totalRead += bytesRead; 79 } while(totalRead < 10); 80 81 sink.close(); 82 source.close(); 83 selector.close(); 84 85 for(int i=0; i<10; i++) 86 if (outgoingdata.get(i) != incomingdata.get(i)) 87 throw new Exception("Pipe failed"); 88 } 89 }