author | pliden |
Fri, 09 Nov 2018 14:08:01 +0100 | |
changeset 52653 | ec92cbf2152b |
parent 50525 | 767cdb97f103 |
child 58122 | 48d51def09f9 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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#ifndef SHARE_GC_Z_ZLOCK_HPP |
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#define SHARE_GC_Z_ZLOCK_HPP |
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#include "memory/allocation.hpp" |
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#include <pthread.h> |
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class ZLock { |
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private: |
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pthread_mutex_t _lock; |
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public: |
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ZLock(); |
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~ZLock(); |
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void lock(); |
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bool try_lock(); |
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void unlock(); |
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}; |
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class ZReentrantLock { |
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ZLock _lock; |
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Thread* volatile _owner; |
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uint64_t _count; |
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ZReentrantLock(); |
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void lock(); |
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void unlock(); |
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bool is_owned() const; |
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}; |
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template <typename T> |
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class ZLocker : public StackObj { |
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private: |
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T* const _lock; |
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ZLocker(T* lock); |
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~ZLocker(); |
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}; |
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#endif // SHARE_GC_Z_ZLOCK_HPP |