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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 "unique_store_allocator.h"
#include "unique_store_buffer_type.hpp"
#include "unique_store_value_filter.h"
#include "datastore.hpp"
#include <vespa/vespalib/util/size_literals.h>
namespace vespalib::datastore {
constexpr size_t NUM_ARRAYS_FOR_NEW_UNIQUESTORE_BUFFER = 1_Ki;
constexpr float ALLOC_GROW_FACTOR = 0.2;
template <typename EntryT, typename RefT>
UniqueStoreAllocator<EntryT, RefT>::UniqueStoreAllocator(std::shared_ptr<alloc::MemoryAllocator> memory_allocator)
: ICompactable(),
_store(),
_typeHandler(2u, RefT::offsetSize(), NUM_ARRAYS_FOR_NEW_UNIQUESTORE_BUFFER, ALLOC_GROW_FACTOR, std::move(memory_allocator))
{
auto typeId = _store.addType(&_typeHandler);
assert(typeId == 0u);
_store.init_primary_buffers();
_store.enableFreeLists();
}
template <typename EntryT, typename RefT>
UniqueStoreAllocator<EntryT, RefT>::~UniqueStoreAllocator()
{
_store.clearHoldLists();
_store.dropBuffers();
}
template <typename EntryT, typename RefT>
EntryRef
UniqueStoreAllocator<EntryT, RefT>::allocate(const EntryType& value)
{
return _store.template freeListAllocator<WrappedEntryType, UniqueStoreEntryReclaimer<WrappedEntryType>>(0).alloc(UniqueStoreValueFilter<EntryType>::filter(value)).ref;
}
template <typename EntryT, typename RefT>
void
UniqueStoreAllocator<EntryT, RefT>::hold(EntryRef ref)
{
_store.holdElem(ref, 1);
}
template <typename EntryT, typename RefT>
EntryRef
UniqueStoreAllocator<EntryT, RefT>::move_on_compact(EntryRef ref)
{
return _store.template allocator<WrappedEntryType>(0).alloc(get_wrapped(ref)).ref;
}
}
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