1e4e158d98
libcamera uses std::unique_ptr<> to simplify life time management of objects and avoid leaks. For historical reasons there are a fair number of plain pointers with manual memory management. Replace them with std::unique_ptr<> when the conversion is simple. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com> Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
81 lines
1.6 KiB
C++
81 lines
1.6 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2018-2019, Google Inc.
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*
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* udev-based device enumerator
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*/
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#pragma once
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#include <list>
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#include <map>
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#include <memory>
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#include <set>
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#include <string>
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#include <sys/types.h>
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#include <unordered_set>
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#include <libcamera/base/class.h>
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#include "libcamera/internal/device_enumerator.h"
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struct udev;
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struct udev_device;
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struct udev_monitor;
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namespace libcamera {
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class EventNotifier;
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class MediaDevice;
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class MediaEntity;
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class DeviceEnumeratorUdev final : public DeviceEnumerator
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{
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public:
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DeviceEnumeratorUdev();
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~DeviceEnumeratorUdev();
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int init();
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int enumerate();
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private:
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using DependencyMap = std::map<dev_t, std::list<MediaEntity *>>;
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struct MediaDeviceDeps {
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MediaDeviceDeps(std::unique_ptr<MediaDevice> media,
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DependencyMap deps)
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: media_(std::move(media)), deps_(std::move(deps))
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{
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}
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bool operator==(const MediaDeviceDeps &other) const
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{
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return media_ == other.media_;
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}
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std::unique_ptr<MediaDevice> media_;
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DependencyMap deps_;
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};
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LIBCAMERA_DISABLE_COPY_AND_MOVE(DeviceEnumeratorUdev)
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int addUdevDevice(struct udev_device *dev);
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void removeUdevDevice(struct udev_device *dev);
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int populateMediaDevice(MediaDevice *media, DependencyMap *deps);
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std::string lookupDeviceNode(dev_t devnum);
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int addV4L2Device(dev_t devnum);
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void udevNotify();
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struct udev *udev_;
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struct udev_monitor *monitor_;
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std::unique_ptr<EventNotifier> notifier_;
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std::set<dev_t> orphans_;
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std::unordered_set<dev_t> devices_;
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std::list<MediaDeviceDeps> pending_;
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std::map<dev_t, MediaDeviceDeps *> devMap_;
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};
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} /* namespace libcamera */
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