xref: /freebsd/contrib/kyua/utils/sqlite/c_gate.hpp (revision b0d29bc47dba79f6f38e67eabadfb4b32ffd9390)

// Copyright 2011 The Kyua Authors.
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/// \file c_gate.hpp
/// Provides direct access to the C state of the SQLite wrappers.

#if !defined(UTILS_SQLITE_C_GATE_HPP)
#define UTILS_SQLITE_C_GATE_HPP

#include "utils/sqlite/c_gate_fwd.hpp"

extern "C" {
#include <sqlite3.h>
}

#include "utils/sqlite/database_fwd.hpp"

namespace utils {
namespace sqlite {


/// Gateway to the raw C database of SQLite 3.
///
/// This class provides a mechanism to muck with the internals of the database
/// wrapper class.
///
/// \warning The use of this class is discouraged.  By using this class, you are
/// entering the world of unsafety.  Anything you do through the objects exposed
/// through this class will not be controlled by RAII patterns not validated in
/// any other way, so you can end up corrupting the SQLite 3 state and later get
/// crashes on otherwise perfectly-valid C++ code.
class database_c_gate {
    /// The C++ database that this class wraps.
    database& _database;

public:
    database_c_gate(database&);
    ~database_c_gate(void);

    static database connect(::sqlite3*);

    ::sqlite3* c_database(void);
};


}  // namespace sqlite
}  // namespace utils

#endif  // !defined(UTILS_SQLITE_C_GATE_HPP)