Files
external_libcamera/include/libcamera/base/event_notifier.h
Kieran Bingham e228c290c9 libcamera/base: Validate internal headers as private
Headers which must not be exposed as part of the public libcamera API
should include base/private.h.

Any interface which includes the private.h header will only be able to
build if the libcamera_private dependency is used (or the
libcamera_base_private dependency directly).

Build targets which are intended to use the private API's will use the
libcamera_private to handle the automatic definition of the inclusion
guard.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-25 16:11:11 +01:00

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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_BASE_EVENT_NOTIFIER_H__
#define __LIBCAMERA_BASE_EVENT_NOTIFIER_H__
#include <libcamera/base/private.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_BASE_EVENT_NOTIFIER_H__ */