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database header

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This commit is contained in:
Thomas Schleicher 2024-12-16 11:30:41 +01:00
parent 2923f6f5c5
commit acb7221e34
2 changed files with 41 additions and 7 deletions
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15
includes/database_service.hpp
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@ -2,27 +2,34 @@
#define DATABASE_SERVICE_HPP
#include <boost/asio/io_context.hpp>
#include <boost/system/detail/error_code.hpp>
#include <cstddef>
#include <boost/redis/connection.hpp>
#include <functional>
#include <memory>
#include <mutex>
class DatabaseService {
public:
static DatabaseService& getInstance(boost::asio::io_context& io_context, std::size_t pool_size);
void asyncSetKey(const std::string& key, const std::string& value, std::function<void(boost::system::error_code)> callback);
void asyncGetKey(const std::string& key, std::function<void(boost::system::error_code, std::string)> callback); //we could use a varient here for the result
private:
std::shared_ptr<boost::redis::connection> getConnection(); //retrive a connection from the connection pool
private:
DatabaseService(boost::asio::io_context& io_context, std::size_t pool_size = 4);
~DatabaseService();
DatabaseService(DatabaseService const&);
void operator=(DatabaseService const&);
std::shared_ptr<boost::redis::connection> getConnection();
boost::asio::io_context& io_context_;
std::size_t pool_size_;
std::vector<std::shared_ptr<boost::redis::connection>> connection_pool_;
std::size_t current_index_ = 0; //index used for round robin selection
static DatabaseService* INSTANCE;
static std::mutex singleton_mutex;
};
#endif