src/hotspot/share/gc/z/zLock.hpp
author pliden
Thu, 09 Aug 2018 11:24:30 +0200
changeset 51346 d98f2adf09c9
parent 50525 767cdb97f103
child 52653 ec92cbf2152b
permissions -rw-r--r--
8209127: ZGC: Improve error message when failing to map memory for mark stacks Reviewed-by: eosterlund, tschatzl
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/*
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 * Copyright (c) 2015, 2017, 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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  void lock();
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  bool try_lock();
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  void unlock();
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};
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class ZLocker : public StackObj {
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private:
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  ZLock* const _lock;
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public:
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  ZLocker(ZLock* lock);
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  ~ZLocker();
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};
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#endif // SHARE_GC_Z_ZLOCK_HPP