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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "array_store_config.h"
#include "buffer_type.h"
#include <memory>
namespace vespalib::alloc { class MemoryAllocator; }
namespace vespalib::datastore {
/*
* Class representing buffer type for small arrays in ArrayStore
*/
template <typename ElemT>
class SmallArrayBufferType : public BufferType<ElemT>
{
using AllocSpec = ArrayStoreConfig::AllocSpec;
std::shared_ptr<alloc::MemoryAllocator> _memory_allocator;
public:
SmallArrayBufferType(const SmallArrayBufferType&) = delete;
SmallArrayBufferType& operator=(const SmallArrayBufferType&) = delete;
SmallArrayBufferType(SmallArrayBufferType&&) noexcept;
SmallArrayBufferType& operator=(SmallArrayBufferType&&) noexcept = default;
SmallArrayBufferType(uint32_t array_size, const AllocSpec& spec, std::shared_ptr<alloc::MemoryAllocator> memory_allocator) noexcept;
template <typename TypeMapper>
SmallArrayBufferType(uint32_t array_size, const AllocSpec& spec, std::shared_ptr<alloc::MemoryAllocator> memory_allocator, TypeMapper&) noexcept
: SmallArrayBufferType(array_size, spec, std::move(memory_allocator))
{
}
~SmallArrayBufferType() override;
const vespalib::alloc::MemoryAllocator* get_memory_allocator() const override;
};
extern template class SmallArrayBufferType<uint8_t>;
extern template class SmallArrayBufferType<uint32_t>;
extern template class SmallArrayBufferType<int32_t>;
extern template class SmallArrayBufferType<std::string>;
extern template class SmallArrayBufferType<AtomicEntryRef>;
}
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