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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* v4l2_camera_file.h - V4L2 compatibility camera file information
*/
#include "v4l2_camera_file.h"
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <linux/videodev2.h>
#include "v4l2_camera_proxy.h"
using namespace libcamera;
V4L2CameraFile::V4L2CameraFile(int dirfd, const char *path, int efd,
bool nonBlocking, V4L2CameraProxy *proxy)
: proxy_(proxy), nonBlocking_(nonBlocking), efd_(efd),
priority_(V4L2_PRIORITY_DEFAULT)
{
proxy_->open(this);
if (path[0] != '/') {
if (dirfd == AT_FDCWD) {
char *cwd = getcwd(nullptr, 0);
if (cwd) {
description_ = std::string(cwd) + "/";
free(cwd);
} else {
description_ = std::string("(unreachable)/");
}
} else {
description_ = "(dirfd:" + std::to_string(dirfd) + ")/";
}
}
description_ += std::string(path) + " (fd:" + std::to_string(efd) + ")";
}
V4L2CameraFile::~V4L2CameraFile()
{
proxy_->close(this);
}
const std::string &V4L2CameraFile::description() const
{
return description_;
}
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