/usr/include/mysql++/scopedconnection.h is in libmysql++-dev 3.2.1+pristine-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | /// \file scopedconnection.h
/// \brief Declares the ScopedConnection class.
///
/// This class lets you grab a connection from a ConnectionPool in a
/// scoped and therefore RAII way. The Connection object will always be
/// returned to the pool when the scope block ends, plugging a potential
/// leak in the pool.
/***********************************************************************
Copyright (c) 2010 by Joel Fielder. Others may also hold copyrights
on code in this file. See the CREDITS.txt file in the top directory
of the distribution for details.
This file is part of MySQL++.
MySQL++ is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
MySQL++ is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with MySQL++; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
USA
***********************************************************************/
#if !defined(MYSQLPP_SCOPEDCONNECTION_H)
#define MYSQLPP_SCOPEDCONNECTION_H
#include "common.h"
namespace mysqlpp {
#if !defined(DOXYGEN_IGNORE)
// Make Doxygen ignore this
class MYSQLPP_EXPORT Connection;
class MYSQLPP_EXPORT ConnectionPool;
#endif
/// \brief Grabs a Connection from a ConnectionPool on construction
/// and releases it back to the pool on destruction, and provides access
/// to the relevant Connection pointer.
class MYSQLPP_EXPORT ScopedConnection
{
public:
/// \brief Standard constructor
///
/// Grabs a Connection from the specified pool.
///
/// \internal Note that there is no default ctor on purpose. RAII.
///
/// \param pool The ConnectionPool to use.
/// \param safe By default, we get the connection from the pool with
/// ConnectionPool::grab(), but we can call safe_grab() instead.
explicit ScopedConnection(ConnectionPool& pool, bool safe = false);
/// \brief Destructor
///
/// Releases the Connection back to the ConnectionPool.
~ScopedConnection();
/// \brief Access the Connection pointer
Connection* operator->() const { return connection_; }
/// \brief Dereference
Connection& operator*() const { return *connection_; }
/// \brief Truthiness operator
operator void*() const { return connection_; }
private:
// ScopedConnection objects cannot be copied. We want them to be
// tightly scoped to their use point, not put in containers or
// passed around promiscuously.
ScopedConnection(const ScopedConnection& no_copies);
const ScopedConnection& operator=(const ScopedConnection& no_copies);
ConnectionPool& pool_;
Connection* const connection_;
};
} // end namespace mysqlpp
#endif // !defined(MYSQLPP_SCOPEDCONNECTION_H)
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