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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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
 * @bug 8195160
 * @summary Unit test for closing socket channels
 * @requires (os.family == "linux")
 * @library .. /test/lib
 * @build RsocketTest
 * @run main/othervm -Djava.net.preferIPv4Stack=true Close
 */
import java.io.IOException;
import java.net.*;
import java.nio.channels.*;
import jdk.net.Sockets;

public class Close {

    static SelectionKey open() throws IOException {
        SocketChannel sc = Sockets.openRdmaSocketChannel();
        Selector sel = Sockets.openRdmaSelector();
        sc.configureBlocking(false);
        return sc.register(sel, SelectionKey.OP_READ);
    }

    static void check(SelectionKey sk) throws IOException {
        if (sk.isValid())
            throw new RuntimeException("Key still valid");
        if (sk.channel().isOpen())
            throw new RuntimeException("Channel still open");
    }

    static void testSocketClose() throws IOException {
        SelectionKey sk = open();
        check(sk);
    }

    static void testChannelClose() throws IOException {
        SelectionKey sk = open();
        try {
            sk.channel().close();
            check(sk);
        } finally {
            sk.selector().close();
        }
    }

    public static void main(String[] args) throws Exception {
        if (!RsocketTest.isRsocketAvailable())
            return;

        testChannelClose();
    }
}