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.

     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/interfaceSupport.inline.hpp"

    29 #include "runtime/semaphore.inline.hpp"

    30 #include "runtime/thread.hpp"

    31 

    32 template <typename T>

    33 inline void ZFuture<T>::set(T value) {

    34   // Set value

    35   _value = value;

    36 

    37   // Notify waiter

    38   _sema.signal();

    39 }

    40 

    41 template <typename T>

    42 inline T ZFuture<T>::get() {

    43   // Wait for notification

    44   Thread* const thread = Thread::current();

    45   if (thread->is_Java_thread()) {

    46     _sema.wait_with_safepoint_check((JavaThread*)thread);

    47   } else {

    48     _sema.wait();

    49   }

    50 

    51   // Return value

    52   return _value;

    53 }

    54 

    55 #endif // SHARE_GC_Z_ZFUTURE_INLINE_HPP