| /* |
| * Copyright (c) 2002, 2006, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| /* |
| */ |
| |
| package sun.nio.ch; |
| |
| import java.io.IOException; |
| import java.io.FileDescriptor; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.*; |
| import java.nio.channels.spi.*; |
| |
| /** |
| * Pipe.SourceChannel implementation based on socket connection. |
| */ |
| |
| class SourceChannelImpl |
| extends Pipe.SourceChannel |
| implements SelChImpl |
| { |
| // The SocketChannel assoicated with this pipe |
| SocketChannel sc; |
| |
| public FileDescriptor getFD() { |
| return ((SocketChannelImpl) sc).getFD(); |
| } |
| |
| public int getFDVal() { |
| return ((SocketChannelImpl) sc).getFDVal(); |
| } |
| |
| SourceChannelImpl(SelectorProvider sp, SocketChannel sc) { |
| super(sp); |
| this.sc = sc; |
| } |
| |
| protected void implCloseSelectableChannel() throws IOException { |
| if (!isRegistered()) |
| kill(); |
| } |
| |
| public void kill() throws IOException { |
| sc.close(); |
| } |
| |
| protected void implConfigureBlocking(boolean block) throws IOException { |
| sc.configureBlocking(block); |
| } |
| |
| public boolean translateReadyOps(int ops, int initialOps, |
| SelectionKeyImpl sk) { |
| int intOps = sk.nioInterestOps(); // Do this just once, it synchronizes |
| int oldOps = sk.nioReadyOps(); |
| int newOps = initialOps; |
| |
| if ((ops & Net.POLLNVAL) != 0) |
| throw new Error("POLLNVAL detected"); |
| |
| if ((ops & (Net.POLLERR | Net.POLLHUP)) != 0) { |
| newOps = intOps; |
| sk.nioReadyOps(newOps); |
| return (newOps & ~oldOps) != 0; |
| } |
| |
| if (((ops & Net.POLLIN) != 0) && |
| ((intOps & SelectionKey.OP_READ) != 0)) |
| newOps |= SelectionKey.OP_READ; |
| |
| sk.nioReadyOps(newOps); |
| return (newOps & ~oldOps) != 0; |
| } |
| |
| public boolean translateAndUpdateReadyOps(int ops, SelectionKeyImpl sk) { |
| return translateReadyOps(ops, sk.nioReadyOps(), sk); |
| } |
| |
| public boolean translateAndSetReadyOps(int ops, SelectionKeyImpl sk) { |
| return translateReadyOps(ops, 0, sk); |
| } |
| |
| public void translateAndSetInterestOps(int ops, SelectionKeyImpl sk) { |
| if ((ops & SelectionKey.OP_READ) != 0) |
| ops = Net.POLLIN; |
| sk.selector.putEventOps(sk, ops); |
| } |
| |
| public int read(ByteBuffer dst) throws IOException { |
| try { |
| return sc.read(dst); |
| } catch (AsynchronousCloseException x) { |
| close(); |
| throw x; |
| } |
| } |
| |
| public long read(ByteBuffer[] dsts, int offset, int length) |
| throws IOException |
| { |
| if ((offset < 0) || (length < 0) || (offset > dsts.length - length)) |
| throw new IndexOutOfBoundsException(); |
| try { |
| return read(Util.subsequence(dsts, offset, length)); |
| } catch (AsynchronousCloseException x) { |
| close(); |
| throw x; |
| } |
| } |
| |
| public long read(ByteBuffer[] dsts) throws IOException { |
| try { |
| return sc.read(dsts); |
| } catch (AsynchronousCloseException x) { |
| close(); |
| throw x; |
| } |
| } |
| |
| } |