1 /*

     2  * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.incubator.http.internal;

    27 

    28 import java.io.IOException;

    29 import java.nio.channels.SelectableChannel;

    30 import java.util.Objects;

    31 import java.util.function.Consumer;

    32 

    33 /**

    34  * An asynchronous event which is triggered only once from the selector manager

    35  * thread as soon as event registration are handled.

    36  */

    37 final class AsyncTriggerEvent extends AsyncEvent{

    38 

    39     private final Runnable trigger;

    40     private final Consumer<? super IOException> errorHandler;

    41     AsyncTriggerEvent(Consumer<? super IOException> errorHandler,

    42                       Runnable trigger) {

    43         super(0);

    44         this.trigger = Objects.requireNonNull(trigger);

    45         this.errorHandler = Objects.requireNonNull(errorHandler);

    46     }

    47     /** Returns null */

    48     @Override

    49     public SelectableChannel channel() { return null; }

    50     /** Returns 0 */

    51     @Override

    52     public int interestOps() { return 0; }

    53     @Override

    54     public void handle() { trigger.run(); }

    55     @Override

    56     public void abort(IOException ioe) { errorHandler.accept(ioe); }

    57     @Override

    58     public boolean repeating() { return false; }

    59 }