/*
* Copyright ( c ) 2016 , 2019 , 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_JFR_WRITERS_JFRPOSITION_HPP
#define SHARE_JFR_WRITERS_JFRPOSITION_HPP
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
template <typename AP> // AllocationPolicy
class Position : public AP {
private :
const u1* _start_pos; // logical start
u1* _current_pos;
const u1* _end_pos;
protected :
const u1* start_pos() const ;
void set_start_pos(const u1* position);
u1* current_pos();
void set_current_pos(const u1* new_position);
void set_current_pos(size_t size);
const u1* end_pos() const ;
void set_end_pos(const u1* position);
Position(const u1* start_pos, size_t size);
Position();
public :
size_t available_size() const ;
int64_t used_offset() const ;
int64_t current_offset() const ;
size_t used_size() const ;
void reset();
};
#endif // SHARE_JFR_WRITERS_JFRPOSITION_HPP
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