0N/A/*
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0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
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0N/A */
0N/A
0N/Apackage sun.nio.ch;
0N/A
0N/Aimport java.io.IOException;
893N/Aimport java.nio.channels.*;
0N/A
0N/Apublic class FileLockImpl
0N/A extends FileLock
0N/A{
1109N/A private volatile boolean valid = true;
0N/A
0N/A FileLockImpl(FileChannel channel, long position, long size, boolean shared)
0N/A {
0N/A super(channel, position, size, shared);
0N/A }
0N/A
893N/A FileLockImpl(AsynchronousFileChannel channel, long position, long size, boolean shared)
893N/A {
893N/A super(channel, position, size, shared);
893N/A }
893N/A
1109N/A public boolean isValid() {
0N/A return valid;
0N/A }
0N/A
1109N/A void invalidate() {
1109N/A assert Thread.holdsLock(this);
0N/A valid = false;
0N/A }
0N/A
0N/A public synchronized void release() throws IOException {
893N/A Channel ch = acquiredBy();
893N/A if (!ch.isOpen())
0N/A throw new ClosedChannelException();
0N/A if (valid) {
893N/A if (ch instanceof FileChannelImpl)
893N/A ((FileChannelImpl)ch).release(this);
893N/A else if (ch instanceof AsynchronousFileChannelImpl)
893N/A ((AsynchronousFileChannelImpl)ch).release(this);
893N/A else throw new AssertionError();
0N/A valid = false;
0N/A }
0N/A }
0N/A}