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//
// Copyright 2010 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

#ifndef INCLUDED_UHD_UTILS_STATIC_HPP
#define INCLUDED_UHD_UTILS_STATIC_HPP

#include <uhd/config.hpp>

/*!
 * Defines a function that implements the "construct on first use" idiom
 * \param _t the type definition for the instance
 * \param _x the name of the defined function
 * \return a reference to the lazy instance
 */
#define UHD_SINGLETON_FCN(_t, _x) static _t &_x(){static _t _x; return _x;}

/*!
 * Defines a static code block that will be called before main()
 * \param _x the name of the defined struct (must be unique in file)
 */
#define UHD_STATIC_BLOCK(_x) static struct _x{_x();}_x;_x::_x()

#endif /* INCLUDED_UHD_UTILS_STATIC_HPP */