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authorTom Tromey <tromey@redhat.com>2005-07-16 01:27:14 +0000
committerTom Tromey <tromey@gcc.gnu.org>2005-07-16 01:27:14 +0000
commitb0fa81eea9a270f23d6ad67ca7a6d25c18d20da1 (patch)
tree8762d1f992e2f725a6bde1ff966ed6f1e5f4f823 /libjava/java/nio/channels/spi/AbstractSelectableChannel.java
parentea54b29342c8506acb4f858c68340c44b72e3532 (diff)
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Major merge with Classpath.
Removed many duplicate files. * HACKING: Updated.x * classpath: Imported new directory. * standard.omit: New file. * Makefile.in, aclocal.m4, configure: Rebuilt. * sources.am: New file. * configure.ac: Run Classpath configure script. Moved code around to support. Disable xlib AWT peers (temporarily). * Makefile.am (SUBDIRS): Added 'classpath' (JAVAC): Removed. (AM_CPPFLAGS): Added more -I options. (BOOTCLASSPATH): Simplified. Completely redid how sources are built. Include sources.am. * include/Makefile.am (tool_include__HEADERS): Removed jni.h. * include/jni.h: Removed (in Classpath). * scripts/classes.pl: Updated to look at built classes. * scripts/makemake.tcl: New file. * testsuite/libjava.jni/jni.exp (gcj_jni_compile_c_to_so): Added -I options. (gcj_jni_invocation_compile_c_to_binary): Likewise. From-SVN: r102082
Diffstat (limited to 'libjava/java/nio/channels/spi/AbstractSelectableChannel.java')
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diff --git a/libjava/java/nio/channels/spi/AbstractSelectableChannel.java b/libjava/java/nio/channels/spi/AbstractSelectableChannel.java
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@@ -1,256 +0,0 @@
-/* AbstractSelectableChannel.java
- Copyright (C) 2002, 2003, 2004 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 java.nio.channels.spi;
-
-import java.io.IOException;
-import java.nio.channels.ClosedChannelException;
-import java.nio.channels.SelectableChannel;
-import java.nio.channels.SelectionKey;
-import java.nio.channels.Selector;
-import java.util.LinkedList;
-import java.util.ListIterator;
-
-public abstract class AbstractSelectableChannel extends SelectableChannel
-{
- private boolean blocking = true;
- private Object LOCK = new Object();
- private SelectorProvider provider;
- private LinkedList keys = new LinkedList();
-
- /**
- * Initializes the channel
- *
- * @param provider the provider that created this channel
- */
- protected AbstractSelectableChannel(SelectorProvider provider)
- {
- this.provider = provider;
- }
-
- /**
- * Retrieves the object upon which the configureBlocking and register
- * methods synchronize.
- *
- * @return the blocking lock
- */
- public final Object blockingLock()
- {
- return LOCK;
- }
-
- /**
- * Adjusts this channel's blocking mode.
- *
- * @param blocking true if blocking should be enabled, false otherwise
- *
- * @return this channel
- *
- * @exception IOException If an error occurs
- */
- public final SelectableChannel configureBlocking(boolean blocking)
- throws IOException
- {
- synchronized (blockingLock())
- {
- if (this.blocking != blocking)
- {
- implConfigureBlocking(blocking);
- this.blocking = blocking;
- }
- }
-
- return this;
- }
-
- /**
- * Closes this channel.
- *
- * @exception IOException If an error occurs
- */
- protected final void implCloseChannel() throws IOException
- {
- implCloseSelectableChannel();
- }
-
- /**
- * Closes this selectable channel.
- *
- * @exception IOException If an error occurs
- */
- protected abstract void implCloseSelectableChannel()
- throws IOException;
-
- /**
- * Adjusts this channel's blocking mode.
- *
- * @param blocking true if blocking should be enabled, false otherwise
- *
- * @exception IOException If an error occurs
- */
- protected abstract void implConfigureBlocking(boolean blocking)
- throws IOException;
-
- /**
- * Tells whether or not every I/O operation on this channel will block
- * until it completes.
- *
- * @return true of this channel is blocking, false otherwise
- */
- public final boolean isBlocking()
- {
- return blocking;
- }
-
- /**
- * Tells whether or not this channel is currently registered with
- * any selectors.
- *
- * @return true if this channel is registered, false otherwise
- */
- public final boolean isRegistered()
- {
- return ! keys.isEmpty();
- }
-
- /**
- * Retrieves the key representing the channel's registration with the
- * given selector.
- *
- * @param selector the selector to get a selection key for
- *
- * @return the selection key this channel is registered with
- */
- public final SelectionKey keyFor(Selector selector)
- {
- if (! isOpen())
- return null;
-
- try
- {
- synchronized (blockingLock())
- {
- return locate(selector);
- }
- }
- catch (Exception e)
- {
- return null;
- }
- }
-
- /**
- * Returns the provider that created this channel.
- *
- * @return the selector provider that created this channel
- */
- public final SelectorProvider provider()
- {
- return provider;
- }
-
- private SelectionKey locate(Selector selector)
- {
- ListIterator it = keys.listIterator();
-
- while (it.hasNext())
- {
- SelectionKey key = (SelectionKey) it.next();
-
- if (key.selector() == selector)
- return key;
- }
-
- return null;
- }
-
- /**
- * Registers this channel with the given selector, returning a selection key.
- *
- * @param selin the seletor to use
- * @param ops the interested operations
- * @param att an attachment for the returned selection key
- *
- * @return the registered selection key
- *
- * @exception ClosedChannelException If the channel is already closed.
- */
- public final SelectionKey register(Selector selin, int ops, Object att)
- throws ClosedChannelException
- {
- if (! isOpen())
- throw new ClosedChannelException();
-
- if ((ops & ~validOps()) != 0)
- throw new IllegalArgumentException();
-
- SelectionKey key = null;
- AbstractSelector selector = (AbstractSelector) selin;
-
- synchronized (blockingLock())
- {
- key = locate(selector);
-
- if (key != null && key.isValid())
- {
- if (att != null)
- key.attach(att);
- }
- else
- {
- key = selector.register(this, ops, att);
-
- if (key != null)
- addSelectionKey(key);
- }
- }
-
- return key;
- }
-
- void addSelectionKey(SelectionKey key)
- {
- keys.add(key);
- }
-
- // This method gets called by AbstractSelector.deregister().
- void removeSelectionKey(SelectionKey key)
- {
- keys.remove(key);
- }
-}