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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/nio/EpollSelectionKeyImpl.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/nio/EpollSelectionKeyImpl.java')
-rw-r--r-- | libjava/classpath/gnu/java/nio/EpollSelectionKeyImpl.java | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/nio/EpollSelectionKeyImpl.java b/libjava/classpath/gnu/java/nio/EpollSelectionKeyImpl.java new file mode 100644 index 000000000..c0b7720e3 --- /dev/null +++ b/libjava/classpath/gnu/java/nio/EpollSelectionKeyImpl.java @@ -0,0 +1,122 @@ +/* EpollSelectionKeyImpl.java -- selection key for the epoll selector. + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.java.nio; + +import java.io.IOException; +import java.nio.channels.CancelledKeyException; +import java.nio.channels.SelectableChannel; +import java.nio.channels.SelectionKey; +import java.nio.channels.Selector; +import java.nio.channels.spi.AbstractSelectionKey; + +/** + * @author Casey Marshall (csm@gnu.org) + */ +public class EpollSelectionKeyImpl extends AbstractSelectionKey +{ + final int fd; + private final EpollSelectorImpl selector; + private final SelectableChannel channel; + int interestOps; + int selectedOps; + int key; + boolean valid; + boolean cancelled; + + EpollSelectionKeyImpl(EpollSelectorImpl selector, + SelectableChannel channel, int fd) + { + this.selector = selector; + this.channel = channel; + this.fd = fd; + } + + /* (non-Javadoc) + * @see java.nio.channels.SelectionKey#channel() + */ + public SelectableChannel channel() + { + return channel; + } + + /* (non-Javadoc) + * @see java.nio.channels.SelectionKey#interestOps() + */ + public int interestOps() + { + return interestOps; + } + + /* (non-Javadoc) + * @see java.nio.channels.SelectionKey#interestOps(int) + */ + public SelectionKey interestOps(int ops) + { + if (cancelled) + throw new CancelledKeyException(); + if ((ops & ~(channel.validOps())) != 0) + throw new IllegalArgumentException("unsupported channel ops"); + try + { + selector.epoll_modify(this, ops); + interestOps = ops; + } + catch (IOException ioe) + { + throw new IllegalArgumentException(ioe); + } + return this; + } + + /* (non-Javadoc) + * @see java.nio.channels.SelectionKey#readyOps() + */ + public int readyOps() + { + return selectedOps; + } + + /* (non-Javadoc) + * @see java.nio.channels.SelectionKey#selector() + */ + public Selector selector() + { + return selector; + } +} |