1 /*
2 * Copyright (c) 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
23 * questions.
24 */
25
26 package sun.misc;
27
28 public interface JavaLangRefAccess {
29
30 /**
31 * Help ReferenceHandler thread process next pending
32 * {@link java.lang.ref.Reference}
33 *
34 * @return {@code true} if there was a pending reference and it
35 * was enqueue-ed or {@code false} if there was no
36 * pending reference
37 */
38 boolean tryHandlePendingReference();
39 }
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1 /*
2 * Copyright (c) 2014, 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 package sun.misc;
27
28 import java.lang.ref.Reference;
29 import java.util.function.Consumer;
30
31 public interface JavaLangRefAccess {
32
33 /**
34 * Help ReferenceHandler thread process next pending
35 * {@link java.lang.ref.Reference}
36 *
37 * @return {@code true} if there was a pending reference and it
38 * was enqueue-ed or {@code false} if there was no
39 * pending reference
40 */
41 boolean tryHandlePendingReference();
42
43 /**
44 * Instantiates a {@code java.lang.ref.Finalizator} that tracks given
45 * {@code finalizee} and invokes given {@code thunk} with it when it
46 * becomes final-reachable.
47 *
48 * @param finalizee the object to track
49 * @param thunk the code to run when the {@code finalizee} becomes
50 * final-reachable
51 * @param <T> the type of {@code finalizee}
52 * @return the {@code java.lang.ref.Finalizator} instance which is
53 * package-private, so it is represented by public {@link java.lang.ref.Reference}.
54 * {@link java.lang.ref.Reference#get()} returns the {@code finalizee} instance
55 * until the {@code thunk} is run, after that it returns {@code null}.
56 */
57 <T> Reference<T> createFinalizator(T finalizee, Consumer<? super T> thunk);
58 }
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