1 /*
   2  * Copyright (c) 2011, 2015, 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 #import "JNIUtilities.h"
  27 #import "ThreadUtilities.h"
  28 
  29 #import <Cocoa/Cocoa.h>
  30 
  31 #import "sun_lwawt_macosx_CFRetainedResource.h"
  32 
  33 
  34 /*
  35  * Class:     sun_lwawt_macosx_CFRetainedResource
  36  * Method:    nativeCFRelease
  37  * Signature: (JZ)V
  38  */
  39 JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CFRetainedResource_nativeCFRelease
  40 (JNIEnv *env, jclass clazz, jlong ptr, jboolean releaseOnAppKitThread)
  41 {
  42     if (releaseOnAppKitThread) {
  43         // Releasing resources on the main AppKit message loop only
  44         // Releasing resources on the nested loops may cause dangling
  45         // pointers after the nested loop is exited
  46         if ([NSApp respondsToSelector:@selector(postRunnableEvent:)]) {
  47             [NSApp postRunnableEvent:^() {
  48                 CFRelease(jlong_to_ptr(ptr));
  49             }];
  50         } else {
  51             // could happen if we are embedded inside SWT/FX application,
  52             [ThreadUtilities performOnMainThreadWaiting:NO block:^() {
  53                 CFRelease(jlong_to_ptr(ptr));
  54             }];
  55         }
  56     } else {
  57 
  58 JNI_COCOA_ENTER(env);
  59 
  60         CFRelease(jlong_to_ptr(ptr));
  61 
  62 JNI_COCOA_EXIT(env);
  63 
  64     }
  65 }