Program Listing for File persistent-resizeable-buffer-serializer.h

↰ Return to documentation for file (include\serialization\persistent-resizeable-buffer-serializer.h)

/******************************************************************************
© Intel Corporation.

This software and the related documents are Intel copyrighted materials,
and your use of them is governed by the express license under which they
were provided to you ("License"). Unless the License provides otherwise,
you may not use, modify, copy, publish, distribute, disclose or transmit
this software or the related documents without Intel's prior written
permission.


 This software and the related documents are provided as is, with no express
or implied warranties, other than those that are expressly stated in the
License.

******************************************************************************/

#pragma once

#include "serialization/buffer-serializer.h"
#include "serialization/memorybacked-serializer.h"

#include <cstdint>
#include <functional>
#include <vector>

namespace gpa {
namespace serialization {

class PersistentResizableBufferSerializer : public BufferSerializer
{
private:
    size_t mCurrentCapacity;
    size_t mMaxCapacity;
    size_t mResizeStep;

public:
    enum {
        kDefaultInitialCapacity = 1024 * 1024,     // 1 MiB
        kDefaultResizeStep = 1024 * 1024,          // 1 MiB
        kDefaultMaxCapacity = 1024 * 1024 * 1024,  // 1 GiB
    };

    PersistentResizableBufferSerializer(size_t const initialCapacity = kDefaultInitialCapacity, size_t const maxCapacity = kDefaultMaxCapacity, size_t const resizeStep = kDefaultResizeStep);
    ~PersistentResizableBufferSerializer();

private:
    void* Preallocate(size_t const initialCapacity, size_t const maxCapacity) const;
    bool Reallocate(uint8_t*& userBuffer, size_t& capacity, size_t const minSize);
};

}  // namespace serialization
}  // namespace gpa