libcamera/include/libcamera/event_notifier.h
Laurent Pinchart 1554d0b6e6 libcamera: Add parent argument to constructors of Object-derived classes
Now that the Object class implements parent-child relationships, make it
possible to create EventNotifier and Timer instances with a parent by
adding a parent argument to their constructors.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-08-17 18:47:17 +03:00

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* event_notifier.h - File descriptor event notifier
*/
#ifndef __LIBCAMERA_EVENT_NOTIFIER_H__
#define __LIBCAMERA_EVENT_NOTIFIER_H__
#include <libcamera/object.h>
#include <libcamera/signal.h>
namespace libcamera {
class Message;
class EventNotifier : public Object
{
public:
enum Type {
Read,
Write,
Exception,
};
EventNotifier(int fd, Type type, Object *parent = nullptr);
virtual ~EventNotifier();
Type type() const { return type_; }
int fd() const { return fd_; }
bool enabled() const { return enabled_; }
void setEnabled(bool enable);
Signal<EventNotifier *> activated;
protected:
void message(Message *msg) override;
private:
int fd_;
Type type_;
bool enabled_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_EVENT_NOTIFIER_H__ */