forked from sdr/gr-osmosdr
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
//
|
|
// 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_OSMOSDR_PIMPL_H
|
|
#define INCLUDED_OSMOSDR_PIMPL_H
|
|
|
|
#include <memory>
|
|
|
|
/*! \file pimpl.h
|
|
* "Pimpl idiom" (pointer to implementation idiom).
|
|
* The OSMOSDR_PIMPL_* macros simplify code overhead for declaring and making pimpls.
|
|
*
|
|
* Each pimpl is implemented as a shared pointer to the implementation:
|
|
* - The container class will not have to deallocate the pimpl.
|
|
* - The container class will use the pimpl as a regular pointer.
|
|
* - Usage: _impl->method(arg0, arg1)
|
|
* - Usage: _impl->member = value;
|
|
*
|
|
* \see http://en.wikipedia.org/wiki/Opaque_pointer
|
|
*/
|
|
|
|
/*!
|
|
* Make a declaration for a pimpl in a header file.
|
|
* - Usage: OSMOSDR_PIMPL_DECL(impl) _impl;
|
|
* \param _name the name of the pimpl class
|
|
*/
|
|
#define OSMOSDR_PIMPL_DECL(_name) \
|
|
struct _name; std::shared_ptr<_name>
|
|
|
|
/*!
|
|
* Make an instance of a pimpl in a source file.
|
|
* - Usage: _impl = OSMOSDR_PIMPL_MAKE(impl, ());
|
|
* - Usage: _impl = OSMOSDR_PIMPL_MAKE(impl, (a0, a1));
|
|
* \param _name the name of the pimpl class
|
|
* \param _args the constructor args for the pimpl
|
|
*/
|
|
#define OSMOSDR_PIMPL_MAKE(_name, _args) \
|
|
std::shared_ptr<_name>(new _name _args)
|
|
|
|
#endif /* INCLUDED_OSMOSDR_PIMPL_H */
|