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generated by cgit v1.2.1 (git 2.18.0) at 2024-12-24 08:38:29 +0000
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * v4l2_compat_manager.h - V4L2 compatibility manager
 */

#ifndef __V4L2_COMPAT_MANAGER_H__
#define __V4L2_COMPAT_MANAGER_H__

#include <fcntl.h>
#include <map>
#include <memory>
#include <sys/mman.h>
#include <sys/types.h>
#include <vector>

#include <libcamera/camera_manager.h>

#include "v4l2_camera_proxy.h"

using namespace libcamera;

class V4L2CompatManager
{
public:
	struct FileOperations {
		using openat_func_t = int (*)(int dirfd, const char *path,
					      int oflag, ...);
		using dup_func_t = int (*)(int oldfd);
		using close_func_t = int (*)(int fd);
		using ioctl_func_t = int (*)(int fd, unsigned long request, ...);
		using mmap_func_t = void *(*)(void *addr, size_t length, int prot,
					      int flags, int fd, off64_t offset);
		using munmap_func_t = int (*)(void *addr, size_t length);

		openat_func_t openat;
		dup_func_t dup;
		close_func_t close;
		ioctl_func_t ioctl;
		mmap_func_t mmap;