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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 "allocator.h"
namespace vespalib::datastore {
/**
* Allocator used to allocate entries of a specific type in an underlying data store
* and uses free lists if available.
*/
template <typename EntryT, typename RefT, typename ReclaimerT>
class FreeListAllocator : public Allocator<EntryT, RefT>
{
public:
using ParentType = Allocator<EntryT, RefT>;
using HandleType = typename ParentType::HandleType;
using ConstArrayRef = typename ParentType::ConstArrayRef;
private:
using ParentType::_store;
using ParentType::_typeId;
public:
FreeListAllocator(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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