diff options
Diffstat (limited to 'libjava/java/nio/channels/spi')
6 files changed, 436 insertions, 0 deletions
diff --git a/libjava/java/nio/channels/spi/AbstractChannel.java b/libjava/java/nio/channels/spi/AbstractChannel.java new file mode 100644 index 0000000..3d7fe7a --- /dev/null +++ b/libjava/java/nio/channels/spi/AbstractChannel.java @@ -0,0 +1,57 @@ +/* AbstractChannel.java -- + Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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.Channel; + +public abstract class AbstractChannel implements Channel +{ + boolean opened; + + public boolean isOpen() + { + return opened; + } + + public void close() throws IOException + { + if (! isOpen()) + return; + } +} diff --git a/libjava/java/nio/channels/spi/AbstractInterruptibleChannel.java b/libjava/java/nio/channels/spi/AbstractInterruptibleChannel.java new file mode 100644 index 0000000..235b995d2 --- /dev/null +++ b/libjava/java/nio/channels/spi/AbstractInterruptibleChannel.java @@ -0,0 +1,87 @@ +/* AbstractInterruptibleChannel.java -- + Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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.Channel; +import java.nio.channels.InterruptibleChannel; + +public abstract class AbstractInterruptibleChannel + implements Channel, InterruptibleChannel +{ + boolean opened = false; + + protected AbstractInterruptibleChannel() + { + } + + protected final void begin() + { + // Marks the beginning of an I/O operation that might block indefinitely. + } + + /** + * @exception IOException If an error occurs + */ + public final void close() throws IOException + { + // Closes this channel. + implCloseChannel(); + } + + /** + * @exception AsynchronousCloseException FIXME + * @exception ClosedByInterruptException FIXME + */ + protected final void end(boolean completed) + { + // Marks the end of an I/O operation that might block indefinitely. + } + + /** + * @exception IOException If an error occurs + */ + protected abstract void implCloseChannel() throws IOException; + + public final boolean isOpen() + { + // Tells whether or not this channel is open. + return opened; + } +} + diff --git a/libjava/java/nio/channels/spi/AbstractSelectableChannel.java b/libjava/java/nio/channels/spi/AbstractSelectableChannel.java index 99f7233..42bb1f2 100644 --- a/libjava/java/nio/channels/spi/AbstractSelectableChannel.java +++ b/libjava/java/nio/channels/spi/AbstractSelectableChannel.java @@ -1,7 +1,51 @@ +/* AbstractSelectableChannel.java -- + Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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.SelectableChannel; + public abstract class AbstractSelectableChannel + extends SelectableChannel { + protected AbstractSelectableChannel (SelectorProvider provider) + { + } + public final boolean isBlocking() { return true; diff --git a/libjava/java/nio/channels/spi/AbstractSelectionKey.java b/libjava/java/nio/channels/spi/AbstractSelectionKey.java new file mode 100644 index 0000000..e14e3b3 --- /dev/null +++ b/libjava/java/nio/channels/spi/AbstractSelectionKey.java @@ -0,0 +1,66 @@ +/* AbstractSelectionKey.java -- + Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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; + +public abstract class AbstractSelectionKey + extends SelectionKey +{ + boolean ok = true; + + protected AbstractSelectionKey () + { + } + + public final void cancel () + { + if (ok) + { + selector ().selectedKeys ().add (this); + } + + ok = false; + } + + public final boolean isValid () + { + return ok; + } +} + diff --git a/libjava/java/nio/channels/spi/AbstractSelector.java b/libjava/java/nio/channels/spi/AbstractSelector.java new file mode 100644 index 0000000..033a8d7 --- /dev/null +++ b/libjava/java/nio/channels/spi/AbstractSelector.java @@ -0,0 +1,100 @@ +/* AbstractSelector.java -- + Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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; +import java.nio.channels.Selector; +import java.util.List; +import java.util.Set; + +public abstract class AbstractSelector extends Selector +{ + boolean closed = true; + SelectorProvider provider; + + protected AbstractSelector(SelectorProvider provider) + { + this.provider = provider; + } + + protected final void begin() + { + } + + /** + * @exception IOException If an error occurs + */ + public final void close() + { + if (closed) + return; + closed = true; + implCloseSelector(); + } + + protected final void deregister(AbstractSelectionKey key) + { + cancelledKeys().remove(key); + } + + protected final void end() + { + } + + public final boolean isOpen() + { + return ! closed; + } + + public final SelectorProvider provider() + { + return provider; + } + + protected final Set cancelledKeys() + { + return null; + } + + /** + * @exception IOException If an error occurs + */ + protected abstract void implCloseSelector(); + + protected abstract SelectionKey register(AbstractSelectableChannel ch, int ops, Object att); +} diff --git a/libjava/java/nio/channels/spi/SelectorProvider.java b/libjava/java/nio/channels/spi/SelectorProvider.java new file mode 100644 index 0000000..93ea537 --- /dev/null +++ b/libjava/java/nio/channels/spi/SelectorProvider.java @@ -0,0 +1,82 @@ +/* SelectorProvider.java -- + Copyright (C) 2002 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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.DatagramChannel; +import java.nio.channels.Pipe; +import java.nio.channels.ServerSocketChannel; +import java.nio.channels.SocketChannel; + +/** + * @since 1.4 + */ +public abstract class SelectorProvider +{ + static SelectorProvider pr; + + /** + * Creates the <code>SelectorProvider<code> object + * + * @exception SecurityException If a security manager has been installed and + * it denies RuntimePermission("selectorProvider") + */ + protected SelectorProvider() + { + SecurityManager sm = System.getSecurityManager (); + if (sm != null) + sm.checkPermission (new RuntimePermission ("selectorProvider")); + } + + public abstract DatagramChannel openDatagramChannel(); + + public abstract Pipe openPipe(); + + public abstract AbstractSelector openSelector(); + + public abstract ServerSocketChannel openServerSocketChannel(); + + public abstract SocketChannel openSocketChannel(); + + /** + * Returns the global <code>SelectorProvider</code> object + */ + public static SelectorProvider provider() + { + return pr; + } +} |