session.hpp

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#ifndef GUARD_SQLITE_SESSION_HPP_INCLUDED
#define GUARD_SQLITE_SESSION_HPP_INCLUDED
 
#include <span>
#include <string>
#include <string_view>
#include <vector>

namespace sqlite {
inline namespace v2 {
    struct connection;

    struct session_options {
        bool indirect = false; 
    };

    struct session {
        session(connection &con, std::string_view schema = "main", session_options options = {});
        ~session();
 
        session(session &&other) noexcept;
        session &operator=(session &&other) noexcept;
 
        session(session const &)            = delete;
        session &operator=(session const &) = delete;
 
        void attach(std::string_view table);
        void attach_all();
        void enable(bool value);
        void set_indirect(bool value);
        std::vector<unsigned char> changeset();
        std::vector<unsigned char> patchset();
 
        void *native_handle() const noexcept;
 
    private:
        std::vector<unsigned char> collect(bool patchset);
        connection *con_;
        void *handle_;
    };

    bool sessions_supported() noexcept;

    void apply_changeset(connection &con, std::span<const unsigned char> data);
    void apply_patchset(connection &con, std::span<const unsigned char> data);
} // namespace v2
} // namespace sqlite
 
#endif // GUARD_SQLITE_SESSION_HPP_INCLUDED