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J. Duke319a3b92007-12-01 00:00:00 +00001/*
2 * Copyright 2000-2002 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26package sun.nio.ch;
27
28import java.io.FileDescriptor;
29import java.io.IOException;
30
31
32/**
33 * An interface that allows translation (and more!).
34 *
35 * @since 1.4
36 */
37
38interface SelChImpl {
39
40 FileDescriptor getFD();
41
42 int getFDVal();
43
44 /**
45 * Adds the specified ops if present in interestOps. The specified
46 * ops are turned on without affecting the other ops.
47 *
48 * @return true iff the new value of sk.readyOps() set by this method
49 * contains at least one bit that the previous value did not
50 * contain
51 */
52 public boolean translateAndUpdateReadyOps(int ops, SelectionKeyImpl sk);
53
54 /**
55 * Sets the specified ops if present in interestOps. The specified
56 * ops are turned on, and all other ops are turned off.
57 *
58 * @return true iff the new value of sk.readyOps() set by this method
59 * contains at least one bit that the previous value did not
60 * contain
61 */
62 public boolean translateAndSetReadyOps(int ops, SelectionKeyImpl sk);
63
64 void translateAndSetInterestOps(int ops, SelectionKeyImpl sk);
65
66 int validOps();
67
68 void kill() throws IOException;
69
70}