pool_strategy.hpp

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#pragma once
 
/// @file userver/storages/sqlite/infra/strategy/pool_strategy.hpp
/// @brief @copybrief storages::sqlite::infra::strategy::PoolStrategyBase
 
#include <memory>
 
#include <userver/engine/async.hpp>
#include <userver/engine/task/task_processor_fwd.hpp>
#include <userver/utils/statistics/writer.hpp>
 
#include <userver/storages/sqlite/operation_types.hpp>
#include <userver/storages/sqlite/options.hpp>
#include <userver/storages/sqlite/sqlite_fwd.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace storages::sqlite::infra::strategy {
 
/// @brief Selects read-only vs read-write SQLite pool for an operation
class PoolStrategyBase {
public:
    virtual ~PoolStrategyBase();
 
    static std::unique_ptr<PoolStrategyBase> Create(
        const settings::SQLiteSettings& settings,
        engine::TaskProcessor& blocking_task_processor
    );
 
    Pool& SelectPool(OperationType operation_type) const;
 
    virtual void WriteStatistics(utils::statistics::Writer& writer) const = 0;
 
protected:
    virtual Pool& GetReadOnly() const = 0;
    virtual Pool& GetReadWrite() const = 0;
};
 
}  // namespace storages::sqlite::infra::strategy
 
USERVER_NAMESPACE_END