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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 <deque>
#include <memory>
#include <vector>
namespace search::memoryindex {
class DocumentInverter;
class DocumentInverterContext;
/*
* Class containing the document inverters used by a memory index.
*/
class DocumentInverterCollection {
DocumentInverterContext& _context;
std::vector<std::unique_ptr<DocumentInverter>> _free_inverters;
std::deque<std::unique_ptr<DocumentInverter>> _inflight_inverters;
std::unique_ptr<DocumentInverter> _active_inverter;
uint32_t _num_inverters;
uint32_t _max_inverters;
public:
DocumentInverterCollection(DocumentInverterContext& context, uint32_t max_inverters);
~DocumentInverterCollection();
DocumentInverter& get_active_inverter() noexcept { return *_active_inverter; }
void switch_active_inverter();
uint32_t get_num_inverters() const noexcept { return _num_inverters; }
uint32_t get_max_inverters() const noexcept { return _max_inverters; }
};
}
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