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https://github.com/qbittorrent/qBittorrent
synced 2025-07-12 00:06:16 -07:00
Fix coding style (Issue #2192).
Also split filesystemwatcher.h into .h/.cpp files.
This commit is contained in:
Vladimir Golovnev (Glassez)
parent
d32bb52390
commit
60c0939e05
5 changed files with 541 additions and 460 deletions
278
src/core/filesystemwatcher.cpp
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278
src/core/filesystemwatcher.cpp
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#include <QtGlobal>
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#ifndef Q_OS_WIN
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#include <QSet>
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#include <iostream>
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#include <errno.h>
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#if defined(Q_OS_MAC) || defined(Q_OS_FREEBSD)
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <string.h>
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#elif !defined Q_OS_HAIKU
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#include <sys/vfs.h>
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#endif
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#endif
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#include "fs_utils.h"
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#include "misc.h"
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#ifndef CIFS_MAGIC_NUMBER
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#define CIFS_MAGIC_NUMBER 0xFF534D42
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#endif
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#ifndef NFS_SUPER_MAGIC
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#define NFS_SUPER_MAGIC 0x6969
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#endif
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#ifndef SMB_SUPER_MAGIC
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#define SMB_SUPER_MAGIC 0x517B
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#endif
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const int WATCH_INTERVAL = 10000; // 10 sec
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const int MAX_PARTIAL_RETRIES = 5;
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#include "filesystemwatcher.h"
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FileSystemWatcher::FileSystemWatcher(QObject *parent)
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: QFileSystemWatcher(parent)
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{
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m_filters << "*.torrent" << "*.magnet";
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connect(this, SIGNAL(directoryChanged(QString)), SLOT(scanLocalFolder(QString)));
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}
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FileSystemWatcher::~FileSystemWatcher()
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{
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#ifndef Q_OS_WIN
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if (m_watchTimer)
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delete m_watchTimer;
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#endif
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if (m_partialTorrentTimer)
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delete m_partialTorrentTimer;
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}
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QStringList FileSystemWatcher::directories() const
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{
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QStringList dirs;
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#ifndef Q_OS_WIN
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if (m_watchTimer) {
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foreach (const QDir &dir, m_watchedFolders)
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dirs << dir.canonicalPath();
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}
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#endif
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dirs << QFileSystemWatcher::directories();
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return dirs;
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}
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void FileSystemWatcher::addPath(const QString &path)
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{
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#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
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QDir dir(path);
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if (!dir.exists()) return;
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// Check if the path points to a network file system or not
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if (isNetworkFileSystem(path)) {
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// Network mode
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qDebug("Network folder detected: %s", qPrintable(path));
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qDebug("Using file polling mode instead of inotify...");
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m_watchedFolders << dir;
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// Set up the watch timer
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if (!m_watchTimer) {
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m_watchTimer = new QTimer(this);
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connect(m_watchTimer, SIGNAL(timeout()), SLOT(scanNetworkFolders()));
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m_watchTimer->start(WATCH_INTERVAL); // 5 sec
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}
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}
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else {
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#endif
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// Normal mode
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qDebug("FS Watching is watching %s in normal mode", qPrintable(path));
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QFileSystemWatcher::addPath(path);
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scanLocalFolder(path);
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#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
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}
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#endif
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}
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void FileSystemWatcher::removePath(const QString &path)
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{
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#ifndef Q_OS_WIN
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QDir dir(path);
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for (int i = 0; i < m_watchedFolders.count(); ++i) {
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if (QDir(m_watchedFolders.at(i)) == dir) {
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m_watchedFolders.removeAt(i);
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if (m_watchedFolders.isEmpty())
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delete m_watchTimer;
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return;
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}
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}
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#endif
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// Normal mode
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QFileSystemWatcher::removePath(path);
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}
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void FileSystemWatcher::scanLocalFolder(QString path)
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{
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qDebug("scanLocalFolder(%s) called", qPrintable(path));
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QStringList torrents;
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// Local folders scan
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addTorrentsFromDir(QDir(path), torrents);
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// Report detected torrent files
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if (!torrents.empty()) {
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qDebug("The following files are being reported: %s", qPrintable(torrents.join("\n")));
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emit torrentsAdded(torrents);
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}
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}
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void FileSystemWatcher::scanNetworkFolders()
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{
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#ifndef Q_OS_WIN
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qDebug("scanNetworkFolders() called");
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QStringList torrents;
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// Network folders scan
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foreach (const QDir &dir, m_watchedFolders) {
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//qDebug("FSWatcher: Polling manually folder %s", qPrintable(dir.path()));
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addTorrentsFromDir(dir, torrents);
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}
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// Report detected torrent files
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if (!torrents.empty()) {
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qDebug("The following files are being reported: %s", qPrintable(torrents.join("\n")));
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emit torrentsAdded(torrents);
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}
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#endif
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}
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void FileSystemWatcher::processPartialTorrents()
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{
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QStringList noLongerPartial;
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// Check which torrents are still partial
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foreach (const QString &torrentPath, m_partialTorrents.keys()) {
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if (!QFile::exists(torrentPath)) {
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m_partialTorrents.remove(torrentPath);
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}
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else if (fsutils::isValidTorrentFile(torrentPath)) {
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noLongerPartial << torrentPath;
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m_partialTorrents.remove(torrentPath);
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}
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else if (m_partialTorrents[torrentPath] >= MAX_PARTIAL_RETRIES) {
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m_partialTorrents.remove(torrentPath);
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QFile::rename(torrentPath, torrentPath + ".invalid");
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}
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else {
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++m_partialTorrents[torrentPath];
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}
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}
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// Stop the partial timer if necessary
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if (m_partialTorrents.empty()) {
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m_partialTorrentTimer->stop();
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m_partialTorrentTimer->deleteLater();
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qDebug("No longer any partial torrent.");
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}
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else {
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qDebug("Still %d partial torrents after delayed processing.", m_partialTorrents.count());
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m_partialTorrentTimer->start(WATCH_INTERVAL);
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}
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// Notify of new torrents
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if (!noLongerPartial.isEmpty())
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emit torrentsAdded(noLongerPartial);
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}
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void FileSystemWatcher::startPartialTorrentTimer()
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{
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Q_ASSERT(!m_partialTorrents.isEmpty());
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if (!m_partialTorrentTimer) {
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m_partialTorrentTimer = new QTimer();
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connect(m_partialTorrentTimer, SIGNAL(timeout()), SLOT(processPartialTorrents()));
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m_partialTorrentTimer->setSingleShot(true);
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m_partialTorrentTimer->start(WATCH_INTERVAL);
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}
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}
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void FileSystemWatcher::addTorrentsFromDir(const QDir &dir, QStringList &torrents)
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{
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const QStringList files = dir.entryList(m_filters, QDir::Files, QDir::Unsorted);
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foreach (const QString &file, files) {
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const QString fileAbsPath = dir.absoluteFilePath(file);
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if (fileAbsPath.endsWith(".magnet")) {
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QFile f(fileAbsPath);
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if (f.open(QIODevice::ReadOnly)
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&& !misc::magnetUriToHash(QString::fromLocal8Bit(f.readAll())).isEmpty()) {
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torrents << fileAbsPath;
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}
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}
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else if (fsutils::isValidTorrentFile(fileAbsPath)) {
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torrents << fileAbsPath;
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}
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else if (!m_partialTorrents.contains(fileAbsPath)) {
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qDebug("Partial torrent detected at: %s", qPrintable(fileAbsPath));
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qDebug("Delay the file's processing...");
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m_partialTorrents.insert(fileAbsPath, 0);
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}
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}
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if (!m_partialTorrents.empty())
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startPartialTorrentTimer();
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}
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#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
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bool FileSystemWatcher::isNetworkFileSystem(QString path)
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{
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QString file = path;
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if (!file.endsWith("/"))
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file += "/";
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file += ".";
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struct statfs buf;
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if (!statfs(file.toLocal8Bit().constData(), &buf)) {
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#ifdef Q_OS_MAC
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// XXX: should we make sure HAVE_STRUCT_FSSTAT_F_FSTYPENAME is defined?
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return ((strcmp(buf.f_fstypename, "nfs") == 0) || (strcmp(buf.f_fstypename, "cifs") == 0) || (strcmp(buf.f_fstypename, "smbfs") == 0));
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#else
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return ((buf.f_type == (long)CIFS_MAGIC_NUMBER) || (buf.f_type == (long)NFS_SUPER_MAGIC) || (buf.f_type == (long)SMB_SUPER_MAGIC));
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#endif
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}
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else {
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std::cerr << "Error: statfs() call failed for " << qPrintable(file) << ". Supposing it is a local folder..." << std::endl;
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switch(errno) {
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case EACCES:
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std::cerr << "Search permission is denied for a component of the path prefix of the path" << std::endl;
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break;
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case EFAULT:
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std::cerr << "Buf or path points to an invalid address" << std::endl;
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break;
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case EINTR:
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std::cerr << "This call was interrupted by a signal" << std::endl;
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break;
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case EIO:
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std::cerr << "I/O Error" << std::endl;
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break;
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case ELOOP:
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std::cerr << "Too many symlinks" << std::endl;
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break;
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case ENAMETOOLONG:
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std::cerr << "path is too long" << std::endl;
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break;
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case ENOENT:
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std::cerr << "The file referred by path does not exist" << std::endl;
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break;
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case ENOMEM:
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std::cerr << "Insufficient kernel memory" << std::endl;
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break;
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case ENOSYS:
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std::cerr << "The file system does not detect this call" << std::endl;
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break;
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case ENOTDIR:
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std::cerr << "A component of the path is not a directory" << std::endl;
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break;
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case EOVERFLOW:
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std::cerr << "Some values were too large to be represented in the struct" << std::endl;
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break;
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default:
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std::cerr << "Unknown error" << std::endl;
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}
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std::cerr << "Errno: " << errno << std::endl;
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return false;
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}
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}
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#endif
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