DynamicSubAllocator.h

/* Copyright (c) 2015, Human Brain Project
 *                     Stefan.Eilemann@epfl.ch
 */

#ifndef ZEROBUF_DYNAMICSUBALLOCATOR_H
#define ZEROBUF_DYNAMICSUBALLOCATOR_H

#include <zerobuf/Allocator.h> // base class
#include <zerobuf/api.h>

namespace zerobuf
{
template <class A>
class DynamicSubAllocatorBase : public Allocator
{
public:
    ZEROBUF_API DynamicSubAllocatorBase(A& parent, size_t headerIndex,
                                        size_t elementIndex, size_t size);
    ZEROBUF_API ~DynamicSubAllocatorBase();

    ZEROBUF_API uint8_t* getData() final;
    ZEROBUF_API const uint8_t* getData() const final;
    size_t getSize() const final { return _size; }
    ZEROBUF_API void copyBuffer(const void* data, size_t size) final;
    bool isMutable() const final { return _parent.isMutable(); }
private:
    A& _parent;
    const size_t _header;
    const size_t _element;
    const size_t _size;

    DynamicSubAllocatorBase(const DynamicSubAllocatorBase<A>&) = delete;
    DynamicSubAllocatorBase<A>& operator=(const DynamicSubAllocatorBase<A>&) =
        delete;
};

typedef DynamicSubAllocatorBase<Allocator> DynamicSubAllocator;
typedef DynamicSubAllocatorBase<const Allocator> ConstDynamicSubAllocator;
}

#endif