38 lines
728 B
C++
38 lines
728 B
C++
#ifndef QUERY_STATEMENT_CACHE_HPP
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#define QUERY_STATEMENT_CACHE_HPP
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#include "matador/sql/statement.hpp"
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#include <memory>
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#include <mutex>
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#include <string>
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#include <unordered_map>
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namespace matador::sql {
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class connection;
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struct cache_info
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{
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statement statement_;
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// std::unique_ptr<statement> statement_;
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size_t connection_id_;
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};
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class statement_cache
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{
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public:
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statement& acquire(query_context &&context, const connection &conn);
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void release(const statement &stmt);
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private:
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mutable std::mutex mutex_;
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size_t max_cache_size_{256};
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std::hash<std::string> hash_;
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using statement_map = std::unordered_map<size_t, cache_info>;
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statement_map statement_map_;
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};
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}
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#endif //QUERY_STATEMENT_CACHE_HPP
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