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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* object.h - Base object
*/
#ifndef __LIBCAMERA_OBJECT_H__
#define __LIBCAMERA_OBJECT_H__
#include <list>
#include <memory>
#include <vector>
#include <libcamera/bound_method.h>
namespace libcamera {
class Message;
template<typename... Args>
class Signal;
class SignalBase;
class Thread;
class Object
{
public:
Object(Object *parent = nullptr);
virtual ~Object();
void postMessage(std::unique_ptr<Message> msg);
template<typename T, typename... Args, typename std::enable_if<std::is_base_of<Object, T>::value>::type * = nullptr>
void invokeMethod(void (T::*func)(Args...), Args... args)
{
T *obj = static_cast<T *>(this);
BoundMethodBase *method = new BoundMemberMethod<T, Args...>(obj, this, func);
void *pack = new typename BoundMemberMethod<T, Args...>::PackType{ args... };
invokeMethod(method, pack);
}
Thread *thread() const { return thread_; }
void moveToThread(Thread *thread);
Object *parent() const { return parent_; }
protected:
virtual void message(Message *msg);
private:
template<typename... Args>
friend class Signal;
friend class BoundMethodBase;
friend class Thread;
void invokeMethod(BoundMethodBase *method, void *pack);
void notifyThreadMove();
void connect(SignalBase *signal);
void disconnect(SignalBase *signal);
Object *parent_;
std::vector<Object *> children_;
Thread *thread_;
std::list<SignalBase *> signals_;
unsigned int pendingMessages_;
};
}; /* namespace libcamera */
#endif /* __LIBCAMERA_OBJECT_H__ */
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