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Diffstat (limited to 'libjava/java/io/FileDescriptor.java')
-rw-r--r-- | libjava/java/io/FileDescriptor.java | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/libjava/java/io/FileDescriptor.java b/libjava/java/io/FileDescriptor.java deleted file mode 100644 index d300c9c..0000000 --- a/libjava/java/io/FileDescriptor.java +++ /dev/null @@ -1,139 +0,0 @@ -/* FileDescriptor.java -- Opaque file handle class - Copyright (C) 1998, 1999, 2000, 2001, 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.io; - -import gnu.java.nio.channels.FileChannelImpl; - -import java.nio.channels.ByteChannel; -import java.nio.channels.FileChannel; - -/** - * This class represents an opaque file handle as a Java class. It should - * be used only to pass to other methods that expect an object of this - * type. No system specific information can be obtained from this object. - * - * @author Aaron M. Renn (arenn@urbanophile.com) - * @author Tom Tromey (tromey@cygnus.com) - * @date September 24, 1998 - */ -public final class FileDescriptor -{ - /** - * A <code>FileDescriptor</code> representing the system standard input - * stream. This will usually be accessed through the - * <code>System.in</code>variable. - */ - public static final FileDescriptor in - = new FileDescriptor (FileChannelImpl.in); - - /** - * A <code>FileDescriptor</code> representing the system standard output - * stream. This will usually be accessed through the - * <code>System.out</code>variable. - */ - public static final FileDescriptor out - = new FileDescriptor (FileChannelImpl.out); - - /** - * A <code>FileDescriptor</code> representing the system standard error - * stream. This will usually be accessed through the - * <code>System.err</code>variable. - */ - public static final FileDescriptor err - = new FileDescriptor (FileChannelImpl.err); - - final ByteChannel channel; - - /** - * This method is used to initialize an invalid FileDescriptor object. - */ - public FileDescriptor() - { - channel = null; - } - - /** - * This method is used to initialize a FileDescriptor object. - */ - FileDescriptor(ByteChannel channel) - { - this.channel = channel; - } - - - /** - * This method forces all data that has not yet been physically written to - * the underlying storage medium associated with this - * <code>FileDescriptor</code> - * to be written out. This method will not return until all data has - * been fully written to the underlying device. If the device does not - * support this functionality or if an error occurs, then an exception - * will be thrown. - */ - public void sync () throws SyncFailedException - { - if (channel instanceof FileChannel) - { - try - { - ((FileChannel) channel).force(true); - } - catch (IOException ex) - { - if (ex instanceof SyncFailedException) - throw (SyncFailedException) ex; - else - throw new SyncFailedException(ex.toString()); - } - } - } - - /** - * This methods tests whether or not this object represents a valid open - * native file handle. - * - * @return <code>true</code> if this object represents a valid - * native file handle, <code>false</code> otherwise - */ - public boolean valid () - { - return channel != null && channel.isOpen(); - } -} |