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. --- libjava/gnu/java/nio/FileLockImpl.java | 104 +++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 libjava/gnu/java/nio/FileLockImpl.java (limited to 'libjava/gnu/java/nio/FileLockImpl.java') diff --git a/libjava/gnu/java/nio/FileLockImpl.java b/libjava/gnu/java/nio/FileLockImpl.java new file mode 100644 index 000000000..673ca2522 --- /dev/null +++ b/libjava/gnu/java/nio/FileLockImpl.java @@ -0,0 +1,104 @@ +/* FileLockImpl.java -- FileLock associated with a FileChannelImpl. + Copyright (C) 2002, 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 gnu.java.nio; + +import gnu.java.nio.channels.FileChannelImpl; + +import java.io.IOException; +import java.nio.channels.FileLock; + +/** + * A FileLock associated with a FileChannelImpl. + * + * @author Michael Koch + * @since 1.4 + */ +public final class FileLockImpl extends FileLock +{ + /** + * Whether or not this lock is valid, false when channel is closed or + * release has been explicitly called. + */ + private boolean valid; + + public FileLockImpl (FileChannelImpl channel, long position, + long size, boolean shared) + { + super (channel, position, size, shared); + valid = true; + } + + /** + * Releases this lock. + */ + protected void finalize() + { + try + { + release(); + } + catch (IOException e) + { + // Ignore this. + } + } + + /** + * Whether or not this lock is valid, false when channel is closed or + * release has been explicitly called. + */ + public boolean isValid() + { + if (valid) + valid = channel().isOpen(); + return valid; + } + + /** + * Releases the lock if it is still valid. Marks this lock as invalid. + */ + public void release() throws IOException + { + if (isValid()) + { + valid = false; + ((FileChannelImpl) channel()).unlock(position(), size()); + } + } +} -- cgit v1.2.3