1 /*

     2  * Copyright (c) 2015, 2018, 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 

    25 #ifndef SHARE_VM_RUNTIME_SEMAPHORE_INLINE_HPP

    26 #define SHARE_VM_RUNTIME_SEMAPHORE_INLINE_HPP

    27 

    28 #include "runtime/interfaceSupport.inline.hpp"

    29 #include "runtime/semaphore.hpp"

    30 #include "runtime/thread.inline.hpp"

    31 

    32 inline void Semaphore::wait_with_safepoint_check(JavaThread* thread) {

    33   // Prepare to block and allow safepoints while blocked

    34   ThreadBlockInVM tbivm(thread);

    35   OSThreadWaitState osts(thread->osthread(), false /* not in Object.wait() */);

    36 

    37   // Wait for value

    38   _impl.wait();

    39 }

    40 

    41 inline void Semaphore::wait_with_safepoint_check() {

    42   Thread* thread = Thread::current();

    43   if (thread->is_Java_thread()) {

    44     wait_with_safepoint_check(static_cast<JavaThread*>(thread));

    45   } else {

    46     // Wait for value

    47     _impl.wait();

    48   }

    49 }

    50 

    51 #endif // SHARE_VM_RUNTIME_SEMAPHORE_INLINE_HPP