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gnu.java.nio

Class EpollSelectorImpl

public class EpollSelectorImpl
extends AbstractSelector
An implementation of Selector that uses the epoll event notification mechanism on GNU/Linux.

Constructor Summary

EpollSelectorImpl(SelectorProvider provider)
Initializes the slector.

Method Summary

static boolean
epoll_supported()
Tell if epoll is supported by this system, and support was compiled in.
protected void
implCloseSelector()
Closes the channel.
Set<E>
keys()
protected SelectionKey
register(AbstractSelectableChannel ch, int ops, Object att)
Registers a channel for the selection process.
int
select()
int
select(long timeout)
int
selectNow()
Set<E>
selectedKeys()
Selector
wakeup()

Methods inherited from class java.nio.channels.spi.AbstractSelector

begin, cancelledKeys, close, deregister, end, implCloseSelector, isOpen, provider, register

Methods inherited from class java.nio.channels.Selector

close, isOpen, keys, open, provider, select, select, selectNow, selectedKeys, wakeup

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

EpollSelectorImpl

public EpollSelectorImpl(SelectorProvider provider)
            throws IOException
Initializes the slector.
Parameters:
provider - the provider that created this selector

Method Details

epoll_supported

public static boolean epoll_supported()
Tell if epoll is supported by this system, and support was compiled in.
Returns:
True if this system supports event notification with epoll.

implCloseSelector

protected void implCloseSelector()
            throws IOException
Closes the channel.
Overrides:
implCloseSelector in interface AbstractSelector
Throws:
IOException - if an error occurs

keys

public Set<E> keys()
Overrides:
keys in interface Selector

register

protected SelectionKey register(AbstractSelectableChannel ch,
                                int ops,
                                Object att)
Registers a channel for the selection process.
Overrides:
register in interface AbstractSelector
Parameters:
ch - the channel register
ops - the interested operations
att - an attachement to the selection key
Returns:
the registered selection key

select

public int select()
            throws IOException
Overrides:
select in interface Selector

select

public int select(long timeout)
            throws IOException
Overrides:
select in interface Selector

selectNow

public int selectNow()
            throws IOException
Overrides:
selectNow in interface Selector

selectedKeys

public Set<E> selectedKeys()
Overrides:
selectedKeys in interface Selector

wakeup

public Selector wakeup()
Overrides:
wakeup in interface Selector
EpollSelectorImpl.java -- selector implementation using epoll 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.

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