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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_INTERNAL_EVENT_NOTIFIER_H__
#define __LIBCAMERA_INTERNAL_EVENT_NOTIFIER_H__
#include <libcamera/base/object.h>
#include <libcamera/base/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_INTERNAL_EVENT_NOTIFIER_H__ */
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