1 /*
   2  * Copyright (c) 2015, 2016, 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;
  27 

  28 import java.nio.channels.SelectableChannel;
  29 
  30 /**
  31  * Event handling interface from HttpClientImpl's selector.
  32  *
  33  * If BLOCKING is set, then the channel will be put in blocking
  34  * mode prior to handle() being called. If false, then it remains non-blocking.
  35  *
  36  * If REPEATING is set then the event is not cancelled after being posted.
  37  */
  38 abstract class AsyncEvent {
  39 
  40     public static final int BLOCKING = 0x1; // non blocking if not set
  41     public static final int REPEATING = 0x2; // one off event if not set
  42 
  43     protected final int flags;
  44 




  45     AsyncEvent(int flags) {
  46         this.flags = flags;
  47     }
  48 
  49     /** Returns the channel */
  50     public abstract SelectableChannel channel();
  51 
  52     /** Returns the selector interest op flags OR'd */
  53     public abstract int interestOps();
  54 
  55     /** Called when event occurs */
  56     public abstract void handle();
  57 
  58     /** Called when selector is shutting down. Abort all exchanges. */
  59     public abstract void abort();
  60 
  61     public boolean blocking() {
  62         return (flags & BLOCKING) != 0;
  63     }

  64 
  65     public boolean repeating() {
  66         return (flags & REPEATING) != 0;
  67     }
  68 }

   1 /*
   2  * Copyright (c) 2015, 2017, 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;
  27 
  28 import java.io.IOException;
  29 import java.nio.channels.SelectableChannel;
  30 
  31 /**
  32  * Event handling interface from HttpClientImpl's selector.
  33  *



  34  * If REPEATING is set then the event is not cancelled after being posted.
  35  */
  36 abstract class AsyncEvent {
  37 

  38     public static final int REPEATING = 0x2; // one off event if not set
  39 
  40     protected final int flags;
  41 
  42     AsyncEvent() {
  43         this(0);
  44     }
  45 
  46     AsyncEvent(int flags) {
  47         this.flags = flags;
  48     }
  49 
  50     /** Returns the channel */
  51     public abstract SelectableChannel channel();
  52 
  53     /** Returns the selector interest op flags OR'd */
  54     public abstract int interestOps();
  55 
  56     /** Called when event occurs */
  57     public abstract void handle();
  58 
  59     /**
  60      * Called when an error occurs during registration, or when the selector has
  61      * been shut down. Aborts all exchanges.
  62      *
  63      * @param ioe  the IOException, or null
  64      */
  65     public abstract void abort(IOException ioe);
  66 
  67     public boolean repeating() {
  68         return (flags & REPEATING) != 0;
  69     }
  70 }