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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "datastorebase.h"
#include "entryref.h"
#include "handle.h"
#include <vespa/vespalib/util/arrayref.h>
namespace vespalib::datastore {
/**
* Allocator used to allocate entries of a specific type in an underlying data store.
*/
template <typename EntryT, typename RefT>
class Allocator
{
public:
using ConstArrayRef = vespalib::ConstArrayRef<EntryT>;
using HandleType = Handle<EntryT>;
protected:
DataStoreBase &_store;
uint32_t _typeId;
public:
Allocator(DataStoreBase &store, uint32_t typeId);
template <typename ... Args>
HandleType alloc(Args && ... args);
HandleType allocArray(ConstArrayRef array);
HandleType allocArray();
template <typename BufferType>
HandleType alloc_dynamic_array(ConstArrayRef array);
};
}
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