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* version 2 for more details (a copy is included in the LICENSE file that
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* 2 along with this work; if not, write to the Free Software Foundation,
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/* @test
* @bug 4607272 6842687
* @summary Unit test for java.nio.channels.AsynchronousFileChannel
* @build CustomThreadPool MyThreadFactory
* @run main/othervm -Djava.nio.channels.DefaultThreadPool.threadFactory=MyThreadFactory CustomThreadPool
*/
import java.io.File;
import static java.nio.file.StandardOpenOption.*;
import java.nio.ByteBuffer;
import java.nio.channels.*;
import java.util.concurrent.atomic.AtomicReference;
public class CustomThreadPool {
public static void main(String[] args) throws Exception {
File blah = File.createTempFile("blah", null);
blah.deleteOnExit();
AsynchronousFileChannel ch =
AsynchronousFileChannel.open(blah.toPath(), READ, WRITE);
ByteBuffer src = ByteBuffer.wrap("Scooby Snacks".getBytes());
final AtomicReference<Thread> invoker = new AtomicReference<Thread>();
ch.write(src, 0, invoker,
new CompletionHandler<Integer,AtomicReference<Thread>>() {
public void completed(Integer result, AtomicReference<Thread> invoker) {
invoker.set(Thread.currentThread());
}
public void failed(Throwable exc, AtomicReference<Thread> invoker) {
}
});
Thread t;
while ((t = invoker.get()) == null) {
Thread.sleep(100);
}
ch.close();
// check handler was run by known thread
if (!MyThreadFactory.created(t))
throw new RuntimeException("Handler invoked by unknown thread");
}
}