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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* class.h - Utilities and helpers for classes
*/
#ifndef __LIBCAMERA_BASE_CLASS_H__
#define __LIBCAMERA_BASE_CLASS_H__
#include <memory>
namespace libcamera {
#ifndef __DOXYGEN__
#define LIBCAMERA_DISABLE_COPY(klass) \
klass(const klass &) = delete; \
klass &operator=(const klass &) = delete;
#define LIBCAMERA_DISABLE_MOVE(klass) \
klass(klass &&) = delete; \
klass &operator=(klass &&) = delete;
#define LIBCAMERA_DISABLE_COPY_AND_MOVE(klass) \
LIBCAMERA_DISABLE_COPY(klass) \
LIBCAMERA_DISABLE_MOVE(klass)
#else
#define LIBCAMERA_DISABLE_COPY(klass)
#define LIBCAMERA_DISABLE_MOVE(klass)
#define LIBCAMERA_DISABLE_COPY_AND_MOVE(klass)
#endif
#ifndef __DOXYGEN__
#define LIBCAMERA_DECLARE_PRIVATE() \
public: \
class Private; \
friend class Private; \
template <bool B = true> \
const Private *_d() const \
{ \
return Extensible::_d<Private>(); \
} \
template <bool B = true> \
Private *_d() \
{ \
return Extensible::_d<Private>(); \
}
#define LIBCAMERA_DECLARE_PUBLIC(klass) \
friend class klass; \
using Public = klass;
#define LIBCAMERA_O_PTR() \
_o<Public>();
#else
#define LIBCAMERA_DECLARE_PRIVATE()
#define LIBCAMERA_DECLARE_PUBLIC(klass)
#define LIBCAMERA_O_PTR()
#endif
class Extensible
{
public:
class Private
{
public:
Private(Extensible *o);
virtual ~Private();
#ifndef __DOXYGEN__
template<typename T>
const T *_o() const
{
return static_cast<const T *>(o_);
}
template<typename T>
T *_o()
{
return static_cast<T *>(o_);
}
#endif
private:
Extensible *const o_;
};
Extensible(Private *d);
protected:
template<typename T>
const T *_d() const
{
return static_cast<const T *>(d_.get());
}
template<typename T>
T *_d()
{
return static_cast<T *>(d_.get());
}
private:
const std::unique_ptr<Private> d_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_BASE_CLASS_H__ */
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