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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
/* @test
* @summary Test selection of ready pipe
*/
import java.io.*;
import java.nio.ByteBuffer;
import java.nio.channels.*;
import java.nio.channels.spi.SelectorProvider;
import java.util.Random;
/**
* Testing PipeChannel
*/
public class SelectPipe {
private static Random generator = new Random();
public static void main(String[] args) throws Exception {
SelectorProvider sp = SelectorProvider.provider();
Selector selector = Selector.open();
Pipe p = sp.openPipe();
Pipe.SinkChannel sink = p.sink();
Pipe.SourceChannel source = p.source();
source.configureBlocking(false);
sink.configureBlocking(false);
SelectionKey readkey = source.register(selector, SelectionKey.OP_READ);
SelectionKey writekey = sink.register(selector, SelectionKey.OP_WRITE);
ByteBuffer outgoingdata = ByteBuffer.allocateDirect(10);
byte[] someBytes = new byte[10];
generator.nextBytes(someBytes);
outgoingdata.put(someBytes);
outgoingdata.flip();
int totalWritten = 0;
while (totalWritten < 10) {
int written = sink.write(outgoingdata);
if (written < 0)
throw new Exception("Write failed");
totalWritten += written;
}
if (selector.select(1000) == 0) {
throw new Exception("test failed");
}
ByteBuffer incomingdata = ByteBuffer.allocateDirect(10);
int totalRead = 0;
do {
int bytesRead = source.read(incomingdata);
if (bytesRead > 0)
totalRead += bytesRead;
} while(totalRead < 10);
sink.close();
source.close();
selector.close();
for(int i=0; i<10; i++)
if (outgoingdata.get(i) != incomingdata.get(i))
throw new Exception("Pipe failed");
}
}