07d5fff29c
Create a string that describe the file from the path and file descriptor. This will be used in log messages to clearly identify which file an operation is related to. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2020, Google Inc.
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*
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* v4l2_camera_file.h - V4L2 compatibility camera file information
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*/
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#include "v4l2_camera_file.h"
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <linux/videodev2.h>
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#include "v4l2_camera_proxy.h"
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using namespace libcamera;
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V4L2CameraFile::V4L2CameraFile(int dirfd, const char *path, int efd,
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bool nonBlocking, V4L2CameraProxy *proxy)
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: proxy_(proxy), nonBlocking_(nonBlocking), efd_(efd),
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priority_(V4L2_PRIORITY_DEFAULT)
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{
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proxy_->open(this);
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if (path[0] != '/') {
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if (dirfd == AT_FDCWD) {
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char *cwd = getcwd(nullptr, 0);
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if (cwd) {
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description_ = std::string(cwd) + "/";
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free(cwd);
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} else {
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description_ = std::string("(unreachable)/");
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}
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} else {
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description_ = "(dirfd:" + std::to_string(dirfd) + ")/";
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}
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}
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description_ += std::string(path) + " (fd:" + std::to_string(efd) + ")";
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}
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V4L2CameraFile::~V4L2CameraFile()
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{
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proxy_->close(this);
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}
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const std::string &V4L2CameraFile::description() const
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{
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return description_;
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}
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