1 /*
2 * Copyright (c) 2015, 2019, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #ifndef SHARE_GC_Z_ZFUTURE_INLINE_HPP
25 #define SHARE_GC_Z_ZFUTURE_INLINE_HPP
26
27 #include "gc/z/zFuture.hpp"
28 #include "runtime/semaphore.inline.hpp"
29 #include "runtime/thread.hpp"
30
31 template <typename T>
32 inline ZFuture<T>::ZFuture() :
33 _value() {}
34
35 template <typename T>
36 inline void ZFuture<T>::set(T value) {
37 // Set value
38 _value = value;
39
40 // Notify waiter
41 _sema.signal();
42 }
43
44 template <typename T>
45 inline T ZFuture<T>::peek() {
46 return _value;
47 }
48
49 template <typename T>
50 inline T ZFuture<T>::get() {
51 // Wait for notification
52 Thread* const thread = Thread::current();
53 if (thread->is_Java_thread()) {
54 _sema.wait_with_safepoint_check((JavaThread*)thread);
55 } else {
56 _sema.wait();
57 }
58
59 // Return value
60 return _value;
61 }
62
63 #endif // SHARE_GC_Z_ZFUTURE_INLINE_HPP
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1 /*
2 * Copyright (c) 2015, 2020, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #ifndef SHARE_GC_Z_ZFUTURE_INLINE_HPP
25 #define SHARE_GC_Z_ZFUTURE_INLINE_HPP
26
27 #include "gc/z/zFuture.hpp"
28 #include "runtime/semaphore.inline.hpp"
29 #include "runtime/thread.hpp"
30
31 template <typename T>
32 inline ZFuture<T>::ZFuture() :
33 _value() {}
34
35 template <typename T>
36 inline void ZFuture<T>::set(T value) {
37 // Set value
38 _value = value;
39
40 // Notify waiter
41 _sema.signal();
42 }
43
44 template <typename T>
45 inline T ZFuture<T>::get() {
46 // Wait for notification
47 Thread* const thread = Thread::current();
48 if (thread->is_Java_thread()) {
49 _sema.wait_with_safepoint_check((JavaThread*)thread);
50 } else {
51 _sema.wait();
52 }
53
54 // Return value
55 return _value;
56 }
57
58 #endif // SHARE_GC_Z_ZFUTURE_INLINE_HPP
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