author | alanb |
Tue, 06 Feb 2018 16:04:46 +0000 | |
changeset 48750 | ffbb784a8873 |
parent 47216 | 71c04702a3d5 |
child 49493 | 814bd31f8da0 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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*/ |
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package sun.nio.ch; |
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import java.io.IOException; |
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import java.io.FileDescriptor; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.*; |
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import java.nio.channels.spi.*; |
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/** |
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* Pipe.SinkChannel implementation based on socket connection. |
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*/ |
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class SinkChannelImpl |
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extends Pipe.SinkChannel |
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implements SelChImpl |
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{ |
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// The SocketChannel assoicated with this pipe |
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final SocketChannel sc; |
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public FileDescriptor getFD() { |
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return ((SocketChannelImpl)sc).getFD(); |
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} |
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public int getFDVal() { |
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return ((SocketChannelImpl)sc).getFDVal(); |
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} |
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SinkChannelImpl(SelectorProvider sp, SocketChannel sc) { |
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super(sp); |
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this.sc = sc; |
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} |
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protected void implCloseSelectableChannel() throws IOException { |
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if (!isRegistered()) |
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kill(); |
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} |
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public void kill() throws IOException { |
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sc.close(); |
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} |
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protected void implConfigureBlocking(boolean block) throws IOException { |
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sc.configureBlocking(block); |
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} |
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public boolean translateReadyOps(int ops, int initialOps, |
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SelectionKeyImpl sk) { |
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int intOps = sk.nioInterestOps(); // Do this just once, it synchronizes |
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int oldOps = sk.nioReadyOps(); |
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int newOps = initialOps; |
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if ((ops & Net.POLLNVAL) != 0) |
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throw new Error("POLLNVAL detected"); |
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if ((ops & (Net.POLLERR | Net.POLLHUP)) != 0) { |
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newOps = intOps; |
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sk.nioReadyOps(newOps); |
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return (newOps & ~oldOps) != 0; |
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} |
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if (((ops & Net.POLLOUT) != 0) && |
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((intOps & SelectionKey.OP_WRITE) != 0)) |
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newOps |= SelectionKey.OP_WRITE; |
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sk.nioReadyOps(newOps); |
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return (newOps & ~oldOps) != 0; |
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} |
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public boolean translateAndUpdateReadyOps(int ops, SelectionKeyImpl sk) { |
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return translateReadyOps(ops, sk.nioReadyOps(), sk); |
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} |
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public boolean translateAndSetReadyOps(int ops, SelectionKeyImpl sk) { |
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return translateReadyOps(ops, 0, sk); |
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} |
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public void translateAndSetInterestOps(int ops, SelectionKeyImpl sk) { |
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if ((ops & SelectionKey.OP_WRITE) != 0) |
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ops = Net.POLLOUT; |
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sk.selector.putEventOps(sk, ops); |
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} |
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public int write(ByteBuffer src) throws IOException { |
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try { |
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return sc.write(src); |
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} catch (AsynchronousCloseException x) { |
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close(); |
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throw x; |
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} |
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} |
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public long write(ByteBuffer[] srcs) throws IOException { |
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try { |
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return sc.write(srcs); |
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} catch (AsynchronousCloseException x) { |
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close(); |
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throw x; |
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} |
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} |
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public long write(ByteBuffer[] srcs, int offset, int length) |
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throws IOException |
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{ |
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if ((offset < 0) || (length < 0) || (offset > srcs.length - length)) |
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throw new IndexOutOfBoundsException(); |
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try { |
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return write(Util.subsequence(srcs, offset, length)); |
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} catch (AsynchronousCloseException x) { |
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close(); |
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throw x; |
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} |
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} |
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} |