Merge pull request #14630 from glassez/save-resume

Improve ResumeDataStorage

src/base/CMakeLists.txt

@@ -5,6 +5,7 @@ add_library(qbt_base STATIC
     bittorrent/abstractfilestorage.h
     bittorrent/addtorrentparams.h
     bittorrent/bandwidthscheduler.h
+    bittorrent/bencoderesumedatastorage.h
     bittorrent/cachestatus.h
     bittorrent/common.h
     bittorrent/customstorage.h
@@ -94,6 +95,7 @@ add_library(qbt_base STATIC
     asyncfilestorage.cpp
     bittorrent/abstractfilestorage.cpp
     bittorrent/bandwidthscheduler.cpp
+    bittorrent/bencoderesumedatastorage.cpp
     bittorrent/customstorage.cpp
     bittorrent/downloadpriority.cpp
     bittorrent/filesearcher.cpp
@@ -105,7 +107,6 @@ add_library(qbt_base STATIC
     bittorrent/peeraddress.cpp
     bittorrent/peerinfo.cpp
     bittorrent/portforwarderimpl.cpp
-    bittorrent/resumedatastorage.cpp
     bittorrent/session.cpp
     bittorrent/speedmonitor.cpp
     bittorrent/statistics.cpp

src/base/base.pri

@@ -4,6 +4,7 @@ HEADERS += \
     $$PWD/bittorrent/abstractfilestorage.h \
     $$PWD/bittorrent/addtorrentparams.h \
     $$PWD/bittorrent/bandwidthscheduler.h \
+    $$PWD/bittorrent/bencoderesumedatastorage.h \
     $$PWD/bittorrent/cachestatus.h \
     $$PWD/bittorrent/common.h \
     $$PWD/bittorrent/customstorage.h \
@@ -94,6 +95,7 @@ SOURCES += \
     $$PWD/asyncfilestorage.cpp \
     $$PWD/bittorrent/abstractfilestorage.cpp \
     $$PWD/bittorrent/bandwidthscheduler.cpp \
+    $$PWD/bittorrent/bencoderesumedatastorage.cpp \
     $$PWD/bittorrent/customstorage.cpp \
     $$PWD/bittorrent/downloadpriority.cpp \
     $$PWD/bittorrent/filesearcher.cpp \
@@ -105,7 +107,6 @@ SOURCES += \
     $$PWD/bittorrent/peeraddress.cpp \
     $$PWD/bittorrent/peerinfo.cpp \
     $$PWD/bittorrent/portforwarderimpl.cpp \
-    $$PWD/bittorrent/resumedatastorage.cpp \
     $$PWD/bittorrent/session.cpp \
     $$PWD/bittorrent/speedmonitor.cpp \
     $$PWD/bittorrent/statistics.cpp \

src/base/bittorrent/bencoderesumedatastorage.cpp

@@ -26,10 +26,11 @@
  * exception statement from your version.
  */
 
-#include "resumedatastorage.h"
+#include "bencoderesumedatastorage.h"
 
 #include <libtorrent/bdecode.hpp>
 #include <libtorrent/bencode.hpp>
+#include <libtorrent/create_torrent.hpp>
 #include <libtorrent/entry.hpp>
 #include <libtorrent/read_resume_data.hpp>
 #include <libtorrent/write_resume_data.hpp>
@@ -37,18 +38,42 @@
 #include <QByteArray>
 #include <QRegularExpression>
 #include <QSaveFile>
+#include <QThread>
 
 #include "base/algorithm.h"
+#include "base/exceptions.h"
 #include "base/global.h"
 #include "base/logger.h"
 #include "base/profile.h"
 #include "base/utils/fs.h"
 #include "base/utils/io.h"
 #include "base/utils/string.h"
+#include "infohash.h"
+#include "loadtorrentparams.h"
 #include "torrentinfo.h"
 
+namespace BitTorrent
+{
+    class BencodeResumeDataStorage::Worker final : public QObject
+    {
+        Q_DISABLE_COPY(Worker)
+
+    public:
+        explicit Worker(const QDir &resumeDataDir);
+
+        void store(const TorrentID &id, const LoadTorrentParams &resumeData) const;
+        void remove(const TorrentID &id) const;
+        void storeQueue(const QVector<TorrentID> &queue) const;
+
+    private:
+        const QDir m_resumeDataDir;
+    };
+}
+
 namespace
 {
+    const char RESUME_FOLDER[] = "BT_backup";
+
     template <typename LTStr>
     QString fromLTString(const LTStr &str)
     {
@@ -65,11 +90,31 @@ namespace
             entryList.emplace_back(setValue.toStdString());
         return entryList;
     }
+
+    void writeEntryToFile(const QString &filepath, const lt::entry &data)
+    {
+        QSaveFile file {filepath};
+        if (!file.open(QIODevice::WriteOnly))
+            throw RuntimeError(file.errorString());
+
+        lt::bencode(Utils::IO::FileDeviceOutputIterator {file}, data);
+        if (file.error() != QFileDevice::NoError || !file.commit())
+            throw RuntimeError(file.errorString());
+    }
 }
 
-BitTorrent::BencodeResumeDataStorage::BencodeResumeDataStorage(const QString &resumeFolderPath)
+BitTorrent::BencodeResumeDataStorage::BencodeResumeDataStorage(QObject *parent)
-    : m_resumeDataDir {resumeFolderPath}
+    : ResumeDataStorage {parent}
+    , m_resumeDataDir {Utils::Fs::expandPathAbs(specialFolderLocation(SpecialFolder::Data) + RESUME_FOLDER)}
+    , m_ioThread {new QThread {this}}
+    , m_asyncWorker {new Worker {m_resumeDataDir}}
+{
+    if (!m_resumeDataDir.exists() && !m_resumeDataDir.mkpath(m_resumeDataDir.absolutePath()))
     {
+        throw RuntimeError {tr("Cannot create torrent resume folder: \"%1\"")
+                    .arg(Utils::Fs::toNativePath(m_resumeDataDir.absolutePath()))};
+    }
+
     const QRegularExpression filenamePattern {QLatin1String("^([A-Fa-f0-9]{40})\\.fastresume$")};
     const QStringList filenames = m_resumeDataDir.entryList(QStringList(QLatin1String("*.fastresume")), QDir::Files, QDir::Unsorted);
 
@@ -109,6 +154,16 @@ BitTorrent::BencodeResumeDataStorage::BencodeResumeDataStorage(const QString &re
     }
 
     qDebug("Registered torrents count: %d", m_registeredTorrents.size());
+
+    m_asyncWorker->moveToThread(m_ioThread);
+    connect(m_ioThread, &QThread::finished, m_asyncWorker, &QObject::deleteLater);
+    m_ioThread->start();
+}
+
+BitTorrent::BencodeResumeDataStorage::~BencodeResumeDataStorage()
+{
+    m_ioThread->quit();
+    m_ioThread->wait();
 }
 
 QVector<BitTorrent::TorrentID> BitTorrent::BencodeResumeDataStorage::registeredTorrents() const
@@ -122,44 +177,19 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::BencodeResumeDataStorag
     const QString fastresumePath = m_resumeDataDir.absoluteFilePath(QString::fromLatin1("%1.fastresume").arg(idString));
     const QString torrentFilePath = m_resumeDataDir.absoluteFilePath(QString::fromLatin1("%1.torrent").arg(idString));
 
-    const auto readFile = [](const QString &path, QByteArray &buf) -> bool
+    QFile file {fastresumePath};
-    {
-        QFile file(path);
     if (!file.open(QIODevice::ReadOnly))
     {
-            LogMsg(tr("Cannot read file %1: %2").arg(path, file.errorString()), Log::WARNING);
+        LogMsg(tr("Cannot read file %1: %2").arg(fastresumePath, file.errorString()), Log::WARNING);
-            return false;
-        }
-
-        buf = file.readAll();
-        return true;
-    };
-
-    QByteArray data;
-    if (!readFile(fastresumePath, data))
         return std::nullopt;
+    }
 
+    const QByteArray data = file.readAll();
     const TorrentInfo metadata = TorrentInfo::loadFromFile(torrentFilePath);
 
     return loadTorrentResumeData(data, metadata);
 }
 
-void BitTorrent::BencodeResumeDataStorage::storeQueue(const QVector<TorrentID> &queue) const
-{
-    QByteArray data;
-    data.reserve(((TorrentID::length() * 2) + 1) * queue.size());
-    for (const TorrentID &torrentID : queue)
-        data += (torrentID.toString().toLatin1() + '\n');
-
-    const QString filepath = m_resumeDataDir.absoluteFilePath(QLatin1String("queue"));
-    QSaveFile file {filepath};
-    if (!file.open(QIODevice::WriteOnly) || (file.write(data) != data.size()) || !file.commit())
-    {
-        LogMsg(tr("Couldn't save data to '%1'. Error: %2")
-            .arg(filepath, file.errorString()), Log::CRITICAL);
-    }
-}
-
 std::optional<BitTorrent::LoadTorrentParams> BitTorrent::BencodeResumeDataStorage::loadTorrentResumeData(
         const QByteArray &data, const TorrentInfo &metadata) const
 {
@@ -222,16 +252,17 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::BencodeResumeDataStorag
     if (p.flags & lt::torrent_flags::stop_when_ready)
     {
         // If torrent has "stop_when_ready" flag set then it is actually "stopped"
-        torrentParams.paused = true;
+        torrentParams.stopped = true;
-        torrentParams.forced = false;
+        torrentParams.operatingMode = TorrentOperatingMode::AutoManaged;
         // ...but temporarily "resumed" to perform some service jobs (e.g. checking)
         p.flags &= ~lt::torrent_flags::paused;
         p.flags |= lt::torrent_flags::auto_managed;
     }
     else
     {
-        torrentParams.paused = (p.flags & lt::torrent_flags::paused) && !(p.flags & lt::torrent_flags::auto_managed);
+        torrentParams.stopped = (p.flags & lt::torrent_flags::paused) && !(p.flags & lt::torrent_flags::auto_managed);
-        torrentParams.forced = !(p.flags & lt::torrent_flags::paused) && !(p.flags & lt::torrent_flags::auto_managed);
+        torrentParams.operatingMode = (p.flags & lt::torrent_flags::paused) || (p.flags & lt::torrent_flags::auto_managed)
+                ? TorrentOperatingMode::AutoManaged : TorrentOperatingMode::Forced;
     }
 
     const bool hasMetadata = (p.ti && p.ti->is_valid());
@@ -242,11 +273,40 @@ std::optional<BitTorrent::LoadTorrentParams> BitTorrent::BencodeResumeDataStorag
 }
 
 void BitTorrent::BencodeResumeDataStorage::store(const TorrentID &id, const LoadTorrentParams &resumeData) const
+{
+    QMetaObject::invokeMethod(m_asyncWorker, [this, id, resumeData]()
+    {
+        m_asyncWorker->store(id, resumeData);
+    });
+}
+
+void BitTorrent::BencodeResumeDataStorage::remove(const TorrentID &id) const
+{
+    QMetaObject::invokeMethod(m_asyncWorker, [this, id]()
+    {
+        m_asyncWorker->remove(id);
+    });
+}
+
+void BitTorrent::BencodeResumeDataStorage::storeQueue(const QVector<TorrentID> &queue) const
+{
+    QMetaObject::invokeMethod(m_asyncWorker, [this, queue]()
+    {
+        m_asyncWorker->storeQueue(queue);
+    });
+}
+
+BitTorrent::BencodeResumeDataStorage::Worker::Worker(const QDir &resumeDataDir)
+    : m_resumeDataDir {resumeDataDir}
+{
+}
+
+void BitTorrent::BencodeResumeDataStorage::Worker::store(const TorrentID &id, const LoadTorrentParams &resumeData) const
 {
     // We need to adjust native libtorrent resume data
     lt::add_torrent_params p = resumeData.ltAddTorrentParams;
     p.save_path = Profile::instance()->toPortablePath(QString::fromStdString(p.save_path)).toStdString();
-    if (resumeData.paused)
+    if (resumeData.stopped)
     {
         p.flags |= lt::torrent_flags::paused;
         p.flags &= ~lt::torrent_flags::auto_managed;
@@ -255,7 +315,7 @@ void BitTorrent::BencodeResumeDataStorage::store(const TorrentID &id, const Load
     {
         // Torrent can be actually "running" but temporarily "paused" to perform some
         // service jobs behind the scenes so we need to restore it as "running"
-        if (!resumeData.forced)
+        if (resumeData.operatingMode == BitTorrent::TorrentOperatingMode::AutoManaged)
         {
             p.flags |= lt::torrent_flags::auto_managed;
         }
@@ -266,6 +326,25 @@ void BitTorrent::BencodeResumeDataStorage::store(const TorrentID &id, const Load
         }
     }
 
+    // metadata is stored in separate .torrent file
+    const std::shared_ptr<lt::torrent_info> torrentInfo = std::move(p.ti);
+    if (torrentInfo)
+    {
+        const QString torrentFilepath = m_resumeDataDir.absoluteFilePath(QString::fromLatin1("%1.torrent").arg(id.toString()));
+        const lt::create_torrent torrentCreator = lt::create_torrent(*torrentInfo);
+        const lt::entry metadata = torrentCreator.generate();
+        try
+        {
+            writeEntryToFile(torrentFilepath, metadata);
+        }
+        catch (const RuntimeError &err)
+        {
+            LogMsg(tr("Couldn't save torrent metadata to '%1'. Error: %2")
+                   .arg(torrentFilepath, err.message()), Log::CRITICAL);
+            return;
+        }
+    }
+
     lt::entry data = lt::write_resume_data(p);
 
     data["qBt-savePath"] = Profile::instance()->toPortablePath(resumeData.savePath).toStdString();
@@ -278,25 +357,19 @@ void BitTorrent::BencodeResumeDataStorage::store(const TorrentID &id, const Load
     data["qBt-contentLayout"] = Utils::String::fromEnum(resumeData.contentLayout).toStdString();
     data["qBt-firstLastPiecePriority"] = resumeData.firstLastPiecePriority;
 
-    const QString filepath = m_resumeDataDir.absoluteFilePath(QString::fromLatin1("%1.fastresume").arg(id.toString()));
+    const QString resumeFilepath = m_resumeDataDir.absoluteFilePath(QString::fromLatin1("%1.fastresume").arg(id.toString()));
-
+    try
-    QSaveFile file {filepath};
-    if (!file.open(QIODevice::WriteOnly))
     {
-        LogMsg(tr("Couldn't save data to '%1'. Error: %2")
+        writeEntryToFile(resumeFilepath, data);
-               .arg(filepath, file.errorString()), Log::CRITICAL);
-        return;
     }
-
+    catch (const RuntimeError &err)
-    lt::bencode(Utils::IO::FileDeviceOutputIterator {file}, data);
-    if ((file.error() != QFileDevice::NoError) || !file.commit())
     {
-        LogMsg(tr("Couldn't save data to '%1'. Error: %2")
+        LogMsg(tr("Couldn't save torrent resume data to '%1'. Error: %2")
-               .arg(filepath, file.errorString()), Log::CRITICAL);
+               .arg(resumeFilepath, err.message()), Log::CRITICAL);
     }
 }
 
-void BitTorrent::BencodeResumeDataStorage::remove(const TorrentID &id) const
+void BitTorrent::BencodeResumeDataStorage::Worker::remove(const TorrentID &id) const
 {
     const QString resumeFilename = QString::fromLatin1("%1.fastresume").arg(id.toString());
     Utils::Fs::forceRemove(m_resumeDataDir.absoluteFilePath(resumeFilename));
@@ -304,3 +377,19 @@ void BitTorrent::BencodeResumeDataStorage::remove(const TorrentID &id) const
     const QString torrentFilename = QString::fromLatin1("%1.torrent").arg(id.toString());
     Utils::Fs::forceRemove(m_resumeDataDir.absoluteFilePath(torrentFilename));
 }
+
+void BitTorrent::BencodeResumeDataStorage::Worker::storeQueue(const QVector<TorrentID> &queue) const
+{
+    QByteArray data;
+    data.reserve(((BitTorrent::TorrentID::length() * 2) + 1) * queue.size());
+    for (const BitTorrent::TorrentID &torrentID : queue)
+        data += (torrentID.toString().toLatin1() + '\n');
+
+    const QString filepath = m_resumeDataDir.absoluteFilePath(QLatin1String("queue"));
+    QSaveFile file {filepath};
+    if (!file.open(QIODevice::WriteOnly) || (file.write(data) != data.size()) || !file.commit())
+    {
+        LogMsg(tr("Couldn't save data to '%1'. Error: %2")
+            .arg(filepath, file.errorString()), Log::CRITICAL);
+    }
+}

src/base/bittorrent/bencoderesumedatastorage.h

@@ -0,0 +1,68 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2015, 2018  Vladimir Golovnev <glassez@yandex.ru>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ */
+
+#pragma once
+
+#include <QDir>
+#include <QVector>
+
+#include "resumedatastorage.h"
+
+class QByteArray;
+class QThread;
+
+namespace BitTorrent
+{
+    class TorrentInfo;
+
+    class BencodeResumeDataStorage final : public ResumeDataStorage
+    {
+        Q_OBJECT
+        Q_DISABLE_COPY(BencodeResumeDataStorage)
+
+    public:
+        explicit BencodeResumeDataStorage(QObject *parent = nullptr);
+        ~BencodeResumeDataStorage() override;
+
+        QVector<TorrentID> registeredTorrents() const override;
+        std::optional<LoadTorrentParams> load(const TorrentID &id) const override;
+        void store(const TorrentID &id, const LoadTorrentParams &resumeData) const override;
+        void remove(const TorrentID &id) const override;
+        void storeQueue(const QVector<TorrentID> &queue) const override;
+
+    private:
+        std::optional<LoadTorrentParams> loadTorrentResumeData(const QByteArray &data, const TorrentInfo &metadata) const;
+
+        const QDir m_resumeDataDir;
+        QVector<TorrentID> m_registeredTorrents;
+        QThread *m_ioThread = nullptr;
+
+        class Worker;
+        Worker *m_asyncWorker = nullptr;
+    };
+}

src/base/bittorrent/loadtorrentparams.h

@@ -47,10 +47,10 @@ namespace BitTorrent
         QSet<QString> tags;
         QString savePath;
         TorrentContentLayout contentLayout = TorrentContentLayout::Original;
+        TorrentOperatingMode operatingMode = TorrentOperatingMode::AutoManaged;
         bool firstLastPiecePriority = false;
         bool hasSeedStatus = false;
-        bool forced = false;
+        bool stopped = false;
-        bool paused = false;
 
         qreal ratioLimit = Torrent::USE_GLOBAL_RATIO;
         int seedingTimeLimit = Torrent::USE_GLOBAL_SEEDING_TIME;

src/base/bittorrent/resumedatastorage.h

@@ -30,19 +30,14 @@
 
 #include <optional>
 
-#include <libtorrent/fwd.hpp>
+#include <QtContainerFwd>
-
-#include <QDir>
 #include <QObject>
-#include <QVector>
-
-#include "infohash.h"
-#include "loadtorrentparams.h"
-
-class QByteArray;
 
 namespace BitTorrent
 {
+    class TorrentID;
+    struct LoadTorrentParams;
+
     class ResumeDataStorage : public QObject
     {
         Q_OBJECT
@@ -57,25 +52,4 @@ namespace BitTorrent
         virtual void remove(const TorrentID &id) const = 0;
         virtual void storeQueue(const QVector<TorrentID> &queue) const = 0;
     };
-
-    class BencodeResumeDataStorage final : public ResumeDataStorage
-    {
-        Q_OBJECT
-        Q_DISABLE_COPY(BencodeResumeDataStorage)
-
-    public:
-        explicit BencodeResumeDataStorage(const QString &resumeFolderPath);
-
-        QVector<TorrentID> registeredTorrents() const override;
-        std::optional<LoadTorrentParams> load(const TorrentID &id) const override;
-        void store(const TorrentID &id, const LoadTorrentParams &resumeData) const override;
-        void remove(const TorrentID &id) const override;
-        void storeQueue(const QVector<TorrentID> &queue) const override;
-
-    private:
-        std::optional<LoadTorrentParams> loadTorrentResumeData(const QByteArray &data, const TorrentInfo &metadata) const;
-
-        const QDir m_resumeDataDir;
-        QVector<TorrentID> m_registeredTorrents;
-    };
 }

src/base/bittorrent/session.cpp

@@ -85,15 +85,16 @@
 #include "base/utils/random.h"
 #include "base/version.h"
 #include "bandwidthscheduler.h"
+#include "bencoderesumedatastorage.h"
 #include "common.h"
 #include "customstorage.h"
 #include "filesearcher.h"
 #include "filterparserthread.h"
+#include "loadtorrentparams.h"
 #include "ltunderlyingtype.h"
 #include "magneturi.h"
 #include "nativesessionextension.h"
 #include "portforwarderimpl.h"
-#include "resumedatastorage.h"
 #include "statistics.h"
 #include "torrentimpl.h"
 #include "tracker.h"
@@ -103,7 +104,6 @@ using namespace BitTorrent;
 namespace
 {
     const char PEER_ID[] = "qB";
-    const char RESUME_FOLDER[] = "BT_backup";
     const char USER_AGENT[] = "qBittorrent/" QBT_VERSION_2;
 
     void torrentQueuePositionUp(const lt::torrent_handle &handle)
@@ -439,7 +439,6 @@ Session::Session(QObject *parent)
 #if defined(Q_OS_WIN)
     , m_OSMemoryPriority(BITTORRENT_KEY("OSMemoryPriority"), OSMemoryPriority::BelowNormal)
 #endif
-    , m_resumeFolderLock {new QFile {this}}
     , m_seedingLimitTimer {new QTimer {this}}
     , m_resumeDataTimer {new QTimer {this}}
     , m_statistics {new Statistics {this}}
@@ -980,9 +979,6 @@ Session::~Session()
 
     m_ioThread->quit();
     m_ioThread->wait();
-
-    m_resumeFolderLock->close();
-    m_resumeFolderLock->remove();
 }
 
 void Session::initInstance()
@@ -1844,10 +1840,7 @@ bool Session::deleteTorrent(const TorrentID &id, const DeleteOption deleteOption
     }
 
     // Remove it from torrent resume directory
-    QMetaObject::invokeMethod(m_resumeDataStorage, [this, torrentID = torrent->id()]()
+    m_resumeDataStorage->remove(torrent->id());
-    {
-        m_resumeDataStorage->remove(torrentID);
-    });
 
     delete torrent;
     return true;
@@ -2061,8 +2054,8 @@ LoadTorrentParams Session::initLoadTorrentParams(const AddTorrentParams &addTorr
     loadTorrentParams.firstLastPiecePriority = addTorrentParams.firstLastPiecePriority;
     loadTorrentParams.hasSeedStatus = addTorrentParams.skipChecking; // do not react on 'torrent_finished_alert' when skipping
     loadTorrentParams.contentLayout = addTorrentParams.contentLayout.value_or(torrentContentLayout());
-    loadTorrentParams.forced = addTorrentParams.addForced;
+    loadTorrentParams.operatingMode = (addTorrentParams.addForced ? TorrentOperatingMode::Forced : TorrentOperatingMode::AutoManaged);
-    loadTorrentParams.paused = addTorrentParams.addPaused.value_or(isAddTorrentPaused());
+    loadTorrentParams.stopped = addTorrentParams.addPaused.value_or(isAddTorrentPaused());
     loadTorrentParams.ratioLimit = addTorrentParams.ratioLimit;
     loadTorrentParams.seedingTimeLimit = addTorrentParams.seedingTimeLimit;
 
@@ -2181,11 +2174,11 @@ bool Session::addTorrent_impl(const std::variant<MagnetUri, TorrentInfo> &source
     else
         p.flags &= ~lt::torrent_flags::seed_mode;
 
-    if (loadTorrentParams.paused || !loadTorrentParams.forced)
+    if (loadTorrentParams.stopped || (loadTorrentParams.operatingMode == TorrentOperatingMode::AutoManaged))
         p.flags |= lt::torrent_flags::paused;
     else
         p.flags &= ~lt::torrent_flags::paused;
-    if (loadTorrentParams.paused || loadTorrentParams.forced)
+    if (loadTorrentParams.stopped || (loadTorrentParams.operatingMode == TorrentOperatingMode::Forced))
         p.flags &= ~lt::torrent_flags::auto_managed;
     else
         p.flags |= lt::torrent_flags::auto_managed;
@@ -2300,23 +2293,28 @@ void Session::exportTorrentFile(const Torrent *torrent, TorrentExportFolder fold
              ((folder == TorrentExportFolder::Finished) && !finishedTorrentExportDirectory().isEmpty()));
 
     const QString validName = Utils::Fs::toValidFileSystemName(torrent->name());
-    const QString torrentFilename = QString::fromLatin1("%1.torrent").arg(torrent->id().toString());
     QString torrentExportFilename = QString::fromLatin1("%1.torrent").arg(validName);
-    const QString torrentPath = QDir(m_resumeFolderPath).absoluteFilePath(torrentFilename);
     const QDir exportPath(folder == TorrentExportFolder::Regular ? torrentExportDirectory() : finishedTorrentExportDirectory());
     if (exportPath.exists() || exportPath.mkpath(exportPath.absolutePath()))
     {
         QString newTorrentPath = exportPath.absoluteFilePath(torrentExportFilename);
         int counter = 0;
-        while (QFile::exists(newTorrentPath) && !Utils::Fs::sameFiles(torrentPath, newTorrentPath))
+        while (QFile::exists(newTorrentPath))
         {
             // Append number to torrent name to make it unique
             torrentExportFilename = QString::fromLatin1("%1 %2.torrent").arg(validName).arg(++counter);
             newTorrentPath = exportPath.absoluteFilePath(torrentExportFilename);
         }
 
-        if (!QFile::exists(newTorrentPath))
+        try
-            QFile::copy(torrentPath, newTorrentPath);
+        {
+            torrent->info().saveToFile(newTorrentPath);
+        }
+        catch (const RuntimeError &err)
+        {
+            LogMsg(tr("Couldn't export torrent metadata file '%1'. Reason: %2")
+                   .arg(newTorrentPath, err.message()), Log::WARNING);
+        }
     }
 }
 
@@ -2382,14 +2380,12 @@ void Session::saveTorrentsQueue() const
         }
     }
 
-    QMetaObject::invokeMethod(m_resumeDataStorage
+    m_resumeDataStorage->storeQueue(queue);
-        , [this, queue]() { m_resumeDataStorage->storeQueue(queue); });
 }
 
 void Session::removeTorrentsQueue() const
 {
-    QMetaObject::invokeMethod(m_resumeDataStorage
+    m_resumeDataStorage->storeQueue({});
-        , [this]() { m_resumeDataStorage->storeQueue({}); });
 }
 
 void Session::setDefaultSavePath(QString path)
@@ -3844,21 +3840,9 @@ void Session::handleTorrentUrlSeedsRemoved(TorrentImpl *const torrent, const QVe
 
 void Session::handleTorrentMetadataReceived(TorrentImpl *const torrent)
 {
-    // Save metadata
-    const QDir resumeDataDir {m_resumeFolderPath};
-    const QString torrentFileName {QString {"%1.torrent"}.arg(torrent->id().toString())};
-    try
-    {
-        torrent->info().saveToFile(resumeDataDir.absoluteFilePath(torrentFileName));
     // Copy the torrent file to the export folder
     if (!torrentExportDirectory().isEmpty())
         exportTorrentFile(torrent);
-    }
-    catch (const RuntimeError &err)
-    {
-        LogMsg(tr("Couldn't save torrent metadata file '%1'. Reason: %2")
-               .arg(torrentFileName, err.message()), Log::CRITICAL);
-    }
 
     emit torrentMetadataReceived(torrent);
 }
@@ -3919,8 +3903,7 @@ void Session::handleTorrentResumeDataReady(TorrentImpl *const torrent, const Loa
 {
     --m_numResumeData;
 
-    QMetaObject::invokeMethod(m_resumeDataStorage
+    m_resumeDataStorage->store(torrent->id(), data);
-        , [this, torrentID = torrent->id(), data]() { m_resumeDataStorage->store(torrentID, data); });
 }
 
 void Session::handleTorrentTrackerReply(TorrentImpl *const torrent, const QString &trackerUrl)
@@ -4055,26 +4038,7 @@ bool Session::hasPerTorrentSeedingTimeLimit() const
 
 void Session::initResumeDataStorage()
 {
-    m_resumeFolderPath = Utils::Fs::expandPathAbs(specialFolderLocation(SpecialFolder::Data) + RESUME_FOLDER);
+    m_resumeDataStorage = new BencodeResumeDataStorage(this);
-    const QDir resumeFolderDir(m_resumeFolderPath);
-    if (resumeFolderDir.exists() || resumeFolderDir.mkpath(resumeFolderDir.absolutePath()))
-    {
-        m_resumeFolderLock->setFileName(resumeFolderDir.absoluteFilePath("session.lock"));
-        if (!m_resumeFolderLock->open(QFile::WriteOnly))
-        {
-            throw RuntimeError {tr("Cannot write to torrent resume folder: \"%1\"")
-                        .arg(Utils::Fs::toNativePath(m_resumeFolderPath))};
-        }
-    }
-    else
-    {
-        throw RuntimeError {tr("Cannot create torrent resume folder: \"%1\"")
-                    .arg(Utils::Fs::toNativePath(m_resumeFolderPath))};
-    }
-
-    m_resumeDataStorage = new BencodeResumeDataStorage {m_resumeFolderPath};
-    m_resumeDataStorage->moveToThread(m_ioThread);
-    connect(m_ioThread, &QThread::finished, m_resumeDataStorage, &QObject::deleteLater);
 }
 
 void Session::configureDeferred()
@@ -4381,35 +4345,21 @@ void Session::createTorrent(const lt::torrent_handle &nativeHandle)
     }
     else
     {
+        m_resumeDataStorage->store(torrent->id(), params);
+
         // The following is useless for newly added magnet
         if (hasMetadata)
         {
-            // Backup torrent file
-            const QDir resumeDataDir {m_resumeFolderPath};
-            const QString torrentFileName {QString::fromLatin1("%1.torrent").arg(torrent->id().toString())};
-            try
-            {
-                torrent->info().saveToFile(resumeDataDir.absoluteFilePath(torrentFileName));
             // Copy the torrent file to the export folder
             if (!torrentExportDirectory().isEmpty())
                 exportTorrentFile(torrent);
         }
-            catch (const RuntimeError &err)
-            {
-                LogMsg(tr("Couldn't save torrent metadata file '%1'. Reason: %2")
-                       .arg(torrentFileName, err.message()), Log::CRITICAL);
-            }
-        }
 
         if (isAddTrackersEnabled() && !torrent->isPrivate())
             torrent->addTrackers(m_additionalTrackerList);
 
         LogMsg(tr("'%1' added to download list.", "'torrent name' was added to download list.")
             .arg(torrent->name()));
-
-        // In case of crash before the scheduled generation
-        // of the fastresumes.
-        torrent->saveResumeData();
     }
 
     if (((torrent->ratioLimit() >= 0) || (torrent->seedingTimeLimit() >= 0))

src/base/bittorrent/session.h

@@ -52,7 +52,6 @@
 #include "torrentinfo.h"
 #include "trackerentry.h"
 
-class QFile;
 #if (QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
 class QNetworkConfiguration;
 class QNetworkConfigurationManager;
@@ -751,8 +750,6 @@ namespace BitTorrent
         int m_numResumeData = 0;
         int m_extraLimit = 0;
         QVector<TrackerEntry> m_additionalTrackerList;
-        QString m_resumeFolderPath;
-        QFile *m_resumeFolderLock = nullptr;
 
         bool m_refreshEnqueued = false;
         QTimer *m_seedingLimitTimer = nullptr;
@@ -763,7 +760,7 @@ namespace BitTorrent
         QPointer<BandwidthScheduler> m_bwScheduler;
         // Tracker
         QPointer<Tracker> m_tracker;
-        // fastresume data writing thread
+
         QThread *m_ioThread = nullptr;
         ResumeDataStorage *m_resumeDataStorage = nullptr;
         FileSearcher *m_fileSearcher = nullptr;

src/base/bittorrent/torrentimpl.cpp

@@ -240,12 +240,12 @@ TorrentImpl::TorrentImpl(Session *session, lt::session *nativeSession
     , m_tags(params.tags)
     , m_ratioLimit(params.ratioLimit)
     , m_seedingTimeLimit(params.seedingTimeLimit)
-    , m_operatingMode(params.forced ? TorrentOperatingMode::Forced : TorrentOperatingMode::AutoManaged)
+    , m_operatingMode(params.operatingMode)
     , m_contentLayout(params.contentLayout)
     , m_hasSeedStatus(params.hasSeedStatus)
     , m_hasFirstLastPiecePriority(params.firstLastPiecePriority)
     , m_useAutoTMM(params.savePath.isEmpty())
-    , m_isStopped(params.paused)
+    , m_isStopped(params.stopped)
     , m_ltAddTorrentParams(params.ltAddTorrentParams)
 {
     if (m_useAutoTMM)
@@ -1470,6 +1470,7 @@ void TorrentImpl::endReceivedMetadataHandling(const QString &savePath, const QSt
 
     m_maintenanceJob = MaintenanceJob::None;
     updateStatus();
+    prepareResumeData(p);
 
     m_session->handleTorrentMetadataReceived(this);
 }
@@ -1728,6 +1729,26 @@ void TorrentImpl::handleTorrentResumedAlert(const lt::torrent_resumed_alert *p)
 }
 
 void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
+{
+    if (m_maintenanceJob == MaintenanceJob::HandleMetadata)
+    {
+        m_ltAddTorrentParams = p->params;
+
+        m_ltAddTorrentParams.have_pieces.clear();
+        m_ltAddTorrentParams.verified_pieces.clear();
+
+        TorrentInfo metadata = TorrentInfo {m_nativeHandle.torrent_file()};
+        metadata.setContentLayout(m_contentLayout);
+
+        m_session->findIncompleteFiles(metadata, m_savePath);
+    }
+    else
+    {
+        prepareResumeData(p->params);
+    }
+}
+
+void TorrentImpl::prepareResumeData(const lt::add_torrent_params &params)
 {
     if (m_hasMissingFiles)
     {
@@ -1736,7 +1757,7 @@ void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
         const auto verifiedPieces = m_ltAddTorrentParams.verified_pieces;
 
         // Update recent resume data but preserve existing progress
-        m_ltAddTorrentParams = p->params;
+        m_ltAddTorrentParams = params;
         m_ltAddTorrentParams.have_pieces = havePieces;
         m_ltAddTorrentParams.unfinished_pieces = unfinishedPieces;
         m_ltAddTorrentParams.verified_pieces = verifiedPieces;
@@ -1744,22 +1765,11 @@ void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
     else
     {
         // Update recent resume data
-        m_ltAddTorrentParams = p->params;
+        m_ltAddTorrentParams = params;
     }
 
     m_ltAddTorrentParams.added_time = addedTime().toSecsSinceEpoch();
 
-    if (m_maintenanceJob == MaintenanceJob::HandleMetadata)
-    {
-        m_ltAddTorrentParams.have_pieces.clear();
-        m_ltAddTorrentParams.verified_pieces.clear();
-
-        TorrentInfo metadata = TorrentInfo {m_nativeHandle.torrent_file()};
-        metadata.setContentLayout(m_contentLayout);
-
-        m_session->findIncompleteFiles(metadata, m_savePath);
-    }
-
     LoadTorrentParams resumeData;
     resumeData.name = m_name;
     resumeData.category = m_category;
@@ -1770,8 +1780,8 @@ void TorrentImpl::handleSaveResumeDataAlert(const lt::save_resume_data_alert *p)
     resumeData.seedingTimeLimit = m_seedingTimeLimit;
     resumeData.firstLastPiecePriority = m_hasFirstLastPiecePriority;
     resumeData.hasSeedStatus = m_hasSeedStatus;
-    resumeData.paused = m_isStopped;
+    resumeData.stopped = m_isStopped;
-    resumeData.forced = (m_operatingMode == TorrentOperatingMode::Forced);
+    resumeData.operatingMode = m_operatingMode;
     resumeData.ltAddTorrentParams = m_ltAddTorrentParams;
 
     m_session->handleTorrentResumeDataReady(this, resumeData);

src/base/bittorrent/torrentimpl.h

@@ -283,6 +283,7 @@ namespace BitTorrent
         void manageIncompleteFiles();
         void applyFirstLastPiecePriority(bool enabled, const QVector<DownloadPriority> &updatedFilePrio = {});
 
+        void prepareResumeData(const lt::add_torrent_params &params);
         void endReceivedMetadataHandling(const QString &savePath, const QStringList &fileNames);
         void reload();