src/share/classes/sun/awt/image/ImageFetcher.java

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   1 /*
   2  * Copyright (c) 1995, 2011, 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


 178                         info.numFetchers--;
 179                     }
 180                 }
 181             }
 182         }
 183     }
 184 
 185     /**
 186       * The main ImageFetcher loop.  Repeatedly calls nextImage(), and
 187       * fetches the returned ImageFetchable objects until nextImage()
 188       * returns null.
 189       */
 190     private void fetchloop() {
 191         Thread me = Thread.currentThread();
 192         while (isFetcher(me)) {
 193             // we're ignoring the return value and just clearing
 194             // the interrupted flag, instead of bailing out if
 195             // the fetcher was interrupted, as we used to,
 196             // because there may be other images waiting
 197             // to be fetched (see 4789067)
 198             me.interrupted();
 199             me.setPriority(HIGH_PRIORITY);
 200             ImageFetchable src = nextImage();
 201             if (src == null) {
 202                 return;
 203             }
 204             try {
 205                 src.doFetch();
 206             } catch (Exception e) {
 207                 System.err.println("Uncaught error fetching image:");
 208                 e.printStackTrace();
 209             }
 210             stoppingAnimation(me);
 211         }
 212     }
 213 
 214 
 215     /**
 216       * Recycles this ImageFetcher thread as an image animator thread.
 217       * Removes this ImageFetcher from the array of ImageFetchers, and
 218       * resets the thread name to "ImageAnimator".


   1 /*
   2  * Copyright (c) 1995, 2014, 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


 178                         info.numFetchers--;
 179                     }
 180                 }
 181             }
 182         }
 183     }
 184 
 185     /**
 186       * The main ImageFetcher loop.  Repeatedly calls nextImage(), and
 187       * fetches the returned ImageFetchable objects until nextImage()
 188       * returns null.
 189       */
 190     private void fetchloop() {
 191         Thread me = Thread.currentThread();
 192         while (isFetcher(me)) {
 193             // we're ignoring the return value and just clearing
 194             // the interrupted flag, instead of bailing out if
 195             // the fetcher was interrupted, as we used to,
 196             // because there may be other images waiting
 197             // to be fetched (see 4789067)
 198             Thread.interrupted();
 199             me.setPriority(HIGH_PRIORITY);
 200             ImageFetchable src = nextImage();
 201             if (src == null) {
 202                 return;
 203             }
 204             try {
 205                 src.doFetch();
 206             } catch (Exception e) {
 207                 System.err.println("Uncaught error fetching image:");
 208                 e.printStackTrace();
 209             }
 210             stoppingAnimation(me);
 211         }
 212     }
 213 
 214 
 215     /**
 216       * Recycles this ImageFetcher thread as an image animator thread.
 217       * Removes this ImageFetcher from the array of ImageFetchers, and
 218       * resets the thread name to "ImageAnimator".