1 /*
 2  * Copyright (c) 2022, 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 package sun.nio.ch;
26 
27 import java.io.IOException;
28 
29 /**
30  * Default PollerProvider for AIX.
31  */
32 class DefaultPollerProvider extends PollerProvider {
33     DefaultPollerProvider(Poller.Mode mode) {
34         if (mode != Poller.Mode.SYSTEM_THREADS) {
35             throw new UnsupportedOperationException();
36         }
37         super(mode);
38     }
39 
40     DefaultPollerProvider() {
41         this(Poller.Mode.SYSTEM_THREADS);
42     }
43 
44     @Override
45     Poller readPoller(boolean subPoller) throws IOException {
46         if (subPoller)
47             throw new UnsupportedOperationException();
48         return new PollsetPoller(true);
49     }
50 
51     @Override
52     Poller writePoller(boolean subPoller) throws IOException {
53         if (subPoller)
54             throw new UnsupportedOperationException();
55         return new PollsetPoller(false);
56     }
57 }