74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
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// Copyright 2011 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/// \file c_gate.hpp
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/// Provides direct access to the C state of the SQLite wrappers.
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#if !defined(UTILS_SQLITE_C_GATE_HPP)
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#define UTILS_SQLITE_C_GATE_HPP
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extern "C" {
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#include <sqlite3.h>
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}
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namespace utils {
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namespace sqlite {
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class database;
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/// Gateway to the raw C database of SQLite 3.
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///
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/// This class provides a mechanism to muck with the internals of the database
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/// wrapper class.
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///
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/// \warning The use of this class is discouraged. By using this class, you are
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/// entering the world of unsafety. Anything you do through the objects exposed
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/// through this class will not be controlled by RAII patterns not validated in
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/// any other way, so you can end up corrupting the SQLite 3 state and later get
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/// crashes on otherwise perfectly-valid C++ code.
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class database_c_gate {
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/// The C++ database that this class wraps.
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database& _database;
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public:
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database_c_gate(database&);
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~database_c_gate(void);
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static database connect(::sqlite3*);
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::sqlite3* c_database(void);
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};
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} // namespace sqlite
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} // namespace utils
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#endif // !defined(UTILS_SQLITE_C_GATE_HPP)
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