From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../channels/spi/AbstractInterruptibleChannel.java | 119 +++++++++ .../channels/spi/AbstractSelectableChannel.java | 271 +++++++++++++++++++++ .../nio/channels/spi/AbstractSelectionKey.java | 78 ++++++ .../java/nio/channels/spi/AbstractSelector.java | 167 +++++++++++++ .../java/nio/channels/spi/SelectorProvider.java | 178 ++++++++++++++ .../classpath/java/nio/channels/spi/package.html | 46 ++++ 6 files changed, 859 insertions(+) create mode 100644 libjava/classpath/java/nio/channels/spi/AbstractInterruptibleChannel.java create mode 100644 libjava/classpath/java/nio/channels/spi/AbstractSelectableChannel.java create mode 100644 libjava/classpath/java/nio/channels/spi/AbstractSelectionKey.java create mode 100644 libjava/classpath/java/nio/channels/spi/AbstractSelector.java create mode 100644 libjava/classpath/java/nio/channels/spi/SelectorProvider.java create mode 100644 libjava/classpath/java/nio/channels/spi/package.html (limited to 'libjava/classpath/java/nio/channels/spi') diff --git a/libjava/classpath/java/nio/channels/spi/AbstractInterruptibleChannel.java b/libjava/classpath/java/nio/channels/spi/AbstractInterruptibleChannel.java new file mode 100644 index 000000000..b1ed7c7f2 --- /dev/null +++ b/libjava/classpath/java/nio/channels/spi/AbstractInterruptibleChannel.java @@ -0,0 +1,119 @@ +/* AbstractInterruptibleChannel.java -- + Copyright (C) 2002, 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.AsynchronousCloseException; +import java.nio.channels.Channel; +import java.nio.channels.ClosedByInterruptException; +import java.nio.channels.InterruptibleChannel; + + +/** + * @author Michael Koch + * @since 1.4 + */ +public abstract class AbstractInterruptibleChannel + implements Channel, InterruptibleChannel +{ + private boolean closed; + + /** + * Initializes the channel. + */ + protected AbstractInterruptibleChannel() + { + } + + /** + * Marks the beginning of an I/O operation that might block indefinitely. + */ + protected final void begin() + { + } + + /** + * Closes the channel. + * + * @exception IOException If an error occurs + */ + public final void close() throws IOException + { + if (! closed) + { + closed = true; + implCloseChannel(); + } + } + + /** + * Marks the end of an I/O operation that might block indefinitely. + * + * @param completed true if the task completed successfully, + * false otherwise + * + * @exception AsynchronousCloseException If the channel was asynchronously + * closed. + * @exception ClosedByInterruptException If the thread blocked in the + * I/O operation was interrupted. + */ + protected final void end(boolean completed) + throws AsynchronousCloseException + { + // FIXME: check more here. + + if (closed) throw new AsynchronousCloseException(); + } + + /** + * Closes the channel. + * + * @exception IOException If an error occurs + */ + protected abstract void implCloseChannel() throws IOException; + + /** + * Tells whether or not this channel is open. + * + * @return true if the channel is open, false otherwise + */ + public final boolean isOpen() + { + return ! closed; + } +} diff --git a/libjava/classpath/java/nio/channels/spi/AbstractSelectableChannel.java b/libjava/classpath/java/nio/channels/spi/AbstractSelectableChannel.java new file mode 100644 index 000000000..97ed685b8 --- /dev/null +++ b/libjava/classpath/java/nio/channels/spi/AbstractSelectableChannel.java @@ -0,0 +1,271 @@ +/* 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.nio.channels.IllegalBlockingModeException; +import java.util.Iterator; +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 + { + try + { + implCloseSelectableChannel(); + } + finally + { + for (Iterator it = keys.iterator(); it.hasNext(); ) + ((SelectionKey) it.next()).cancel(); + } + } + + /** + * 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. + * @exception IllegalBlockingModeException If the channel is configured in + * blocking mode. + */ + 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()) + { + if (blocking) + throw new IllegalBlockingModeException(); + + key = locate(selector); + + if (key != null && key.isValid()) + { + key.interestOps(ops); + 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); + } +} diff --git a/libjava/classpath/java/nio/channels/spi/AbstractSelectionKey.java b/libjava/classpath/java/nio/channels/spi/AbstractSelectionKey.java new file mode 100644 index 000000000..e0dc03f53 --- /dev/null +++ b/libjava/classpath/java/nio/channels/spi/AbstractSelectionKey.java @@ -0,0 +1,78 @@ +/* AbstractSelectionKey.java -- + Copyright (C) 2002, 2003, 2004, 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 java.nio.channels.spi; + +import java.nio.channels.SelectionKey; + + +/** + * @since 1.4 + */ +public abstract class AbstractSelectionKey extends SelectionKey +{ + private boolean cancelled; + + /** + * Initializes the key. + */ + protected AbstractSelectionKey() + { + } + + /** + * Cancels this key. + */ + public final synchronized void cancel() + { + if (isValid()) + { + ((AbstractSelector) selector()).cancelKey(this); + cancelled = true; + } + } + + /** + * Tells whether this key is valid or not. + * + * @return true if this key is valid, false otherwise + */ + public final synchronized boolean isValid() + { + return ! cancelled; + } +} diff --git a/libjava/classpath/java/nio/channels/spi/AbstractSelector.java b/libjava/classpath/java/nio/channels/spi/AbstractSelector.java new file mode 100644 index 000000000..b67d4aecc --- /dev/null +++ b/libjava/classpath/java/nio/channels/spi/AbstractSelector.java @@ -0,0 +1,167 @@ +/* AbstractSelector.java -- + Copyright (C) 2002, 2003, 2004, 2005 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.ClosedSelectorException; +import java.nio.channels.SelectionKey; +import java.nio.channels.Selector; +import java.util.HashSet; +import java.util.Set; + + +public abstract class AbstractSelector extends Selector +{ + private boolean closed; + private SelectorProvider provider; + private HashSet cancelledKeys; + + /** + * Initializes the slector. + * + * @param provider the provider that created this selector + */ + protected AbstractSelector(SelectorProvider provider) + { + this.provider = provider; + this.cancelledKeys = new HashSet(); + } + + /** + * Closes the channel. + * + * @exception IOException If an error occurs + */ + public final synchronized void close() throws IOException + { + if (closed) + return; + + implCloseSelector(); + closed = true; + } + + /** + * Tells whether this channel is open or not. + * + * @return true if channel is open, false otherwise. + */ + public final boolean isOpen() + { + return ! closed; + } + + /** + * Marks the beginning of an I/O operation that might block indefinitely. + */ + protected final void begin() + { + } + + /** + * Marks the end of an I/O operation that might block indefinitely. + */ + protected final void end() + { + } + + /** + * Returns the provider for this selector object. + * + * @return the SelectorProvider object that created this seletor + */ + public final SelectorProvider provider() + { + return provider; + } + + /** + * Returns the cancelled keys set. + * + * @return the cancelled keys set + */ + protected final Set cancelledKeys() + { + if (! isOpen()) + throw new ClosedSelectorException(); + + return cancelledKeys; + } + + /** + * Cancels a selection key. + */ + + // This method is only called by AbstractSelectionKey.cancel(). + final void cancelKey(AbstractSelectionKey key) + { + synchronized (cancelledKeys) + { + cancelledKeys.add(key); + } + } + + /** + * Closes the channel. + * + * @exception IOException if an error occurs + */ + protected abstract void implCloseSelector() throws IOException; + + /** + * Registers a channel for the selection process. + * + * @param ch the channel register + * @param ops the interested operations + * @param att an attachement to the selection key + * + * @return the registered selection key + */ + protected abstract SelectionKey register(AbstractSelectableChannel ch, + int ops, Object att); + + /** + * Deregisters the given selection key. + * + * @param key the key to deregister + */ + protected final void deregister(AbstractSelectionKey key) + { + ((AbstractSelectableChannel) key.channel()).removeSelectionKey(key); + } +} diff --git a/libjava/classpath/java/nio/channels/spi/SelectorProvider.java b/libjava/classpath/java/nio/channels/spi/SelectorProvider.java new file mode 100644 index 000000000..821bc4361 --- /dev/null +++ b/libjava/classpath/java/nio/channels/spi/SelectorProvider.java @@ -0,0 +1,178 @@ +/* SelectorProvider.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 gnu.java.nio.SelectorProviderImpl; + +import java.io.IOException; +import java.nio.channels.Channel; +import java.nio.channels.DatagramChannel; +import java.nio.channels.Pipe; +import java.nio.channels.ServerSocketChannel; +import java.nio.channels.SocketChannel; + + +/** + * @author Michael Koch + * @since 1.4 + */ +public abstract class SelectorProvider +{ + private static SelectorProvider systemDefaultProvider; + + /** + * Initializes the selector provider. + * + * @exception SecurityException If a security manager has been installed and + * it denies @see RuntimePermission ("selectorProvider"). + */ + protected SelectorProvider() + { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + sm.checkPermission(new RuntimePermission("selectorProvider")); + } + + /** + * Opens a datagram channel. + * + * @return a new datagram channel object + * + * @exception IOException if an error occurs + */ + public abstract DatagramChannel openDatagramChannel() + throws IOException; + + /** + * Opens a pipe. + * + * @return a new pipe object + * + * @exception IOException if an error occurs + */ + public abstract Pipe openPipe() throws IOException; + + /** + * Opens a selector. + * + * @return a new selector object + * + * @exception IOException if an error occurs + */ + public abstract AbstractSelector openSelector() throws IOException; + + /** + * Opens a server socket channel. + * + * @return a new server socket channel object + * + * @exception IOException if an error occurs + */ + public abstract ServerSocketChannel openServerSocketChannel() + throws IOException; + + /** + * Opens a socket channel. + * + * @return a new socket channel object + * + * @exception IOException if an error occurs + */ + public abstract SocketChannel openSocketChannel() throws IOException; + + /** + * Returns the inherited channel of the VM. + * + * @return the inherited channel of the VM + * + * @throws IOException If an I/O error occurs + * @throws SecurityException If an installed security manager denies access + * to RuntimePermission("inheritedChannel") + * + * @since 1.5 + */ + public Channel inheritedChannel() + throws IOException + { + SecurityManager sm = System.getSecurityManager(); + if (sm != null) + { + sm.checkPermission(new RuntimePermission("inheritedChannel")); + } + // Implementation note: The default implementation can't do much more + // than return null. If a VM can provide something more useful it should + // install its own SelectorProvider (maybe a subclass of this one) to + // return something more useful. + return null; + } + + /** + * Returns the system-wide default selector provider for this invocation + * of the Java virtual machine. + * + * @return the default seletor provider + */ + public static synchronized SelectorProvider provider() + { + if (systemDefaultProvider == null) + { + String propertyValue = + System.getProperty("java.nio.channels.spi.SelectorProvider"); + + if (propertyValue == null || propertyValue.equals("")) + systemDefaultProvider = new SelectorProviderImpl(); + else + { + try + { + systemDefaultProvider = + (SelectorProvider) Class.forName(propertyValue) + .newInstance(); + } + catch (Exception e) + { + System.err.println("Could not instantiate class: " + + propertyValue); + systemDefaultProvider = new SelectorProviderImpl(); + } + } + } + + return systemDefaultProvider; + } +} diff --git a/libjava/classpath/java/nio/channels/spi/package.html b/libjava/classpath/java/nio/channels/spi/package.html new file mode 100644 index 000000000..133fb04f2 --- /dev/null +++ b/libjava/classpath/java/nio/channels/spi/package.html @@ -0,0 +1,46 @@ + + + + +GNU Classpath - java.nio.channels.spi + + +

Utility classes and interfaces for implementing channels.

+ + + -- cgit v1.2.3