/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2020, Google Inc. * * 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_; }