/*
* Copyright ( c ) 2015 , 2021 , 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_ZMESSAGEPORT_HPP
#define SHARE_GC_Z_ZMESSAGEPORT_HPP
#include "gc/z/zFuture.hpp"
#include "gc/z/zList.hpp"
#include "runtime/mutex.hpp"
template <typename T> class ZMessageRequest;
template <typename T>
class ZMessagePort {
private :
typedef ZMessageRequest<T> Request;
mutable Monitor _monitor;
bool _has_message;
T _message;
uint64_t _seqnum;
ZList<Request> _queue;
public :
ZMessagePort();
bool is_busy() const ;
void send_sync(const T& message);
void send_async(const T& message);
T receive();
void ack();
};
class ZRendezvousPort {
private :
ZMessagePort<bool > _port;
public :
void signal();
void wait();
void ack();
};
#endif // SHARE_GC_Z_ZMESSAGEPORT_HPP
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