/*
* Copyright ( c ) 2015 , 2022 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
#ifndef SHARE_GC_Z_ZLOCK_HPP
#define SHARE_GC_Z_ZLOCK_HPP
#include "memory/allocation.hpp"
#include "runtime/mutex.hpp"
class ZLock {
private :
PlatformMutex _lock;
public :
void lock();
bool try_lock();
void unlock();
};
class ZReentrantLock {
private :
ZLock _lock;
Thread* volatile _owner;
uint64_t _count;
public :
ZReentrantLock();
void lock();
void unlock();
bool is_owned() const ;
};
class ZConditionLock {
private :
PlatformMonitor _lock;
public :
void lock();
bool try_lock();
void unlock();
bool wait(uint64_t millis = 0 );
void notify();
void notify_all();
};
template <typename T>
class ZLocker : public StackObj {
private :
T* const _lock;
public :
ZLocker(T* lock);
~ZLocker();
};
#endif // SHARE_GC_Z_ZLOCK_HPP
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