1 /* 2 * Copyright (c) 2000, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.nio.ch; 27 28 import java.io.*; 29 import java.nio.channels.*; 30 import java.nio.channels.spi.*; 31 32 33 class PipeImpl 34 extends Pipe 35 { 36 37 // Source and sink channels 38 private final SourceChannel source; 39 private final SinkChannel sink; 40 PipeImpl(SelectorProvider sp)41 PipeImpl(SelectorProvider sp) { 42 long pipeFds = IOUtil.makePipe(true); 43 int readFd = (int) (pipeFds >>> 32); 44 int writeFd = (int) pipeFds; 45 FileDescriptor sourcefd = new FileDescriptor(); 46 IOUtil.setfdVal(sourcefd, readFd); 47 source = new SourceChannelImpl(sp, sourcefd); 48 FileDescriptor sinkfd = new FileDescriptor(); 49 IOUtil.setfdVal(sinkfd, writeFd); 50 sink = new SinkChannelImpl(sp, sinkfd); 51 } 52 source()53 public SourceChannel source() { 54 return source; 55 } 56 sink()57 public SinkChannel sink() { 58 return sink; 59 } 60 61 } 62