clientcore: Regardless of whether it is connected, the ClientCore will be uniformly managed by a new thread.

ClientCore/ClientCore.cpp

@@ -4,6 +4,11 @@
 
 ClientCore::ClientCore(QObject* parent) : QObject(parent)
 {
+}
+
+void ClientCore::Instance()
+{
+    qDebug() << "Instance() thread:" << QThread::currentThread();
     socket_ = new QTcpSocket(this);
     connect(socket_, &QTcpSocket::readyRead, this, &ClientCore::onReadyRead);
     connect(socket_, &QTcpSocket::disconnected, this, &ClientCore::onDisconnected);
@@ -13,6 +18,17 @@ ClientCore::~ClientCore()
 {
 }
 
+void ClientCore::DoConnect(const QString& ip, quint16 port)
+{
+    qDebug() << "doConnect thread:" << QThread::currentThread();
+    emit connecting();
+    if (!Connect(ip, port)) {
+        emit conFailed();
+        return;
+    }
+    emit conSuccess();
+}
+
 bool ClientCore::Connect(const QString& ip, quint16 port)
 {
     QMutexLocker locker(&conMutex_);
@@ -26,11 +42,13 @@ bool ClientCore::Connect(const QString& ip, quint16 port)
         return false;
     }
     qInfo() << QString(tr("%1:%2 connected success.")).arg(ip).arg(port);
+    connected_ = true;
     return true;
 }
 
 void ClientCore::Disconnect()
 {
+    connected_ = false;
 }
 
 void ClientCore::onReadyRead()
@@ -48,6 +66,7 @@ void ClientCore::onReadyRead()
 
 void ClientCore::onDisconnected()
 {
+    connected_ = false;
     qCritical() << QString("client %1 disconnected...").arg(remoteID_);
     emit sigDisconnect();
 }
@@ -201,7 +220,6 @@ QString ClientCore::GetOwnID()
 SocketWorker::SocketWorker(ClientCore* core, QObject* parent) : QThread(parent), core_(core)
 {
     connect(core_, &ClientCore::sigDisconnect, this, [this]() {
-        emit disconnected();
         thread()->quit();
     });
 }
@@ -210,19 +228,9 @@ SocketWorker::~SocketWorker()
 {
 }
 
-void SocketWorker::SetConnectInfo(const QString& ip, qint16 port)
-{
-    ip_ = ip;
-    port_ = port;
-}
-
 void SocketWorker::run()
 {
-    emit connecting();
+    qDebug() << "SocketWorker thread:" << QThread::currentThread();
-    if (!core_->Connect(ip_, port_)) {
+    core_->Instance();
-        emit conFailed();
-        return;
-    }
-    emit conSuccess();
     exec();
 }

ClientCore/ClientCore.h

@@ -27,7 +27,9 @@ public:
     ~ClientCore();
 
 public:
+    void Instance();
     bool Connect(const QString& ip, quint16 port);
+    void DoConnect(const QString& ip, quint16 port);
     void Disconnect();
     bool Send(QSharedPointer<FrameBuffer> frame);
     bool Send(const char* data, qint64 len);
@@ -44,7 +46,12 @@ public:
         f->type = type;
         return f;
     }
-    template <typename Callable> static bool asyncInvoke(QObject* context, Callable&& func)
+    /*
+        When calling syncInvoke of ClientCore, the ClientCore should not be in the GUI's event loop thread. 
+        In other words, if a ClientCore instance is created in the GUI thread, it should be moved to another thread; 
+        otherwise, it will cause a deadlock and freeze the interface.
+    */
+    template <typename Callable> static bool syncInvoke(QObject* context, Callable&& func)
     {
         auto promise = QSharedPointer<QPromise<bool>>::create();
         QFuture<bool> future = promise->future();
@@ -81,6 +88,11 @@ signals:
     void sigTransFailed(QSharedPointer<FrameBuffer> frame);
     void sigFileInfo(QSharedPointer<FrameBuffer> frame);
 
+signals:
+    void conSuccess();
+    void connecting();
+    void conFailed();
+
 private:
     void onReadyRead();
     void onDisconnected();
@@ -99,9 +111,10 @@ public:
     QString remoteID_;
 
     QMutex sockMut_;
-    QTcpSocket* socket_;
+    QTcpSocket* socket_{};
     QByteArray recvBuffer_;
 
+    bool connected_{ false };
     LocalFile localFile_;
 };
 
@@ -113,21 +126,10 @@ public:
     SocketWorker(ClientCore* core, QObject* parent = nullptr);
     ~SocketWorker();
 
-public:
-    void SetConnectInfo(const QString& ip, qint16 port);
-
 protected:
     void run() override;
 
-signals:
-    void conSuccess();
-    void connecting();
-    void conFailed();
-    void disconnected();
-
 private:
-    QString ip_;
-    qint16 port_{};
     ClientCore* core_{};
 };
 

ClientCore/FileTrans.cpp

@@ -49,7 +49,7 @@ void FileTrans::ReqSendFile(const TransTask& task)
     }
 
     auto frame = clientCore_->GetBuffer(info, FBT_CLI_REQ_SEND, task.remoteId);
-    if (!ClientCore::asyncInvoke(clientCore_, [this, frame]() { return clientCore_->Send(frame); })) {
+    if (!ClientCore::syncInvoke(clientCore_, [this, frame]() { return clientCore_->Send(frame); })) {
         qCritical() << QString(tr("send req send failed: %1")).arg(info.msg);
         sendTask_->state = TaskState::STATE_NONE;
         sendTask_->file.close();
@@ -79,7 +79,7 @@ void FileTrans::ReqDownFile(const TransTask& task)
         return;
     }
     auto frame = clientCore_->GetBuffer(info, FBT_CLI_REQ_DOWN, task.remoteId);
-    if (!ClientCore::asyncInvoke(clientCore_, [this, frame]() { return clientCore_->Send(frame); })) {
+    if (!ClientCore::syncInvoke(clientCore_, [this, frame]() { return clientCore_->Send(frame); })) {
         qCritical() << QString(tr("send req send failed: %1")).arg(info.msg);
         downTask_->state = TaskState::STATE_NONE;
         downTask_->file.close();
@@ -154,7 +154,7 @@ void FileTrans::fbtReqSend(QSharedPointer<FrameBuffer> frame)
     if (downTask_->state == TaskState::STATE_RUNNING) {
         info.msg = QString(tr("busy..."));
         auto f = clientCore_->GetBuffer(info, FBT_CLI_CANOT_SEND, frame->fid);
-        ClientCore::asyncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); });
+        ClientCore::syncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); });
         return;
     }
 
@@ -165,7 +165,7 @@ void FileTrans::fbtReqSend(QSharedPointer<FrameBuffer> frame)
         info.msg = QString(tr("open file failed: %1")).arg(newerPath);
         qCritical() << info.msg;
         auto f = clientCore_->GetBuffer(info, FBT_CLI_CANOT_SEND, frame->fid);
-        if (!ClientCore::asyncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); })) {
+        if (!ClientCore::syncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); })) {
             qCritical() << QString(tr("open recv file:%2 failed, and reply %2 failed.")).arg(info.msg, f->fid);
             downTask_->file.close();
             return;
@@ -180,7 +180,7 @@ void FileTrans::fbtReqSend(QSharedPointer<FrameBuffer> frame)
     info.msg = QString(tr("open recv file success: %1")).arg(newerPath);
     qInfo() << info.msg;
     auto f = clientCore_->GetBuffer(info, FBT_CLI_CAN_SEND, frame->fid);
-    if (!ClientCore::asyncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); })) {
+    if (!ClientCore::syncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); })) {
         qCritical() << QString(tr("open recv file:%2 success, but reply %2 failed.")).arg(info.msg, frame->fid);
         downTask_->file.close();
         return;
@@ -217,7 +217,7 @@ void FileTrans::fbtReqDown(QSharedPointer<FrameBuffer> frame)
 
     // reply fileinfo
     auto f = clientCore_->GetBuffer(info, FBT_CLI_FILE_INFO, frame->fid);
-    if (!ClientCore::asyncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); })) {
+    if (!ClientCore::syncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); })) {
         qCritical() << QString(tr("send file %1 info failed.")).arg(info.fromPath);
         doTask->file.close();
         return;
@@ -237,7 +237,7 @@ void FileTrans::fbtTransDone(QSharedPointer<FrameBuffer> frame)
         info.msg = QString(tr("recv file:%1 success.")).arg(downTask_->file.fileName());
         qInfo() << info.msg;
         auto f = clientCore_->GetBuffer(info, FBT_CLI_CAN_DOWN, frame->fid);
-        ClientCore::asyncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); });
+        ClientCore::syncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); });
         return;
     }
     qCritical() << QString(tr("recv file:%1 done sigal, but file not opened.")).arg(info.msg);
@@ -272,7 +272,7 @@ void FileTrans::fbtFileBuffer(QSharedPointer<FrameBuffer> frame)
         InfoMsg info;
         info.msg = downTask_->file.errorString();
         auto f = clientCore_->GetBuffer(info, FBT_CLI_TRANS_FAILED, frame->fid);
-        ClientCore::asyncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); });
+        ClientCore::syncInvoke(clientCore_, [this, f]() { return clientCore_->Send(f); });
         downTask_->file.close();
     }
     downTask_->tranSize += ws;
@@ -372,7 +372,7 @@ void SendThread::run()
 
     InfoMsg info;
     auto f = cliCore_->GetBuffer(info, FBT_CLI_TRANS_DONE, task_->task.remoteId);
-    ClientCore::asyncInvoke(cliCore_, [this, f]() { return cliCore_->Send(f); });
+    ClientCore::syncInvoke(cliCore_, [this, f]() { return cliCore_->Send(f); });
     task_->file.close();
     task_->state = TaskState::STATE_FINISH;
 }

ClientCore/RemoteFile.cpp

@@ -19,7 +19,7 @@ bool RemoteFile::GetHome()
 {
     InfoMsg info;
     auto frame = cliCore_->GetBuffer(info, FBT_CLI_ASK_HOME, cliCore_->GetRemoteID());
-    return ClientCore::asyncInvoke(cliCore_, [this, frame]() { return cliCore_->Send(frame); });
+    return ClientCore::syncInvoke(cliCore_, [this, frame]() { return cliCore_->Send(frame); });
 }
 
 bool RemoteFile::GetDirFile(const QString& dir)
@@ -27,5 +27,5 @@ bool RemoteFile::GetDirFile(const QString& dir)
     InfoMsg info;
     info.msg = dir;
     auto frame = cliCore_->GetBuffer(info, FBT_CLI_ASK_DIRFILE, cliCore_->GetRemoteID());
-    return ClientCore::asyncInvoke(cliCore_, [this, frame]() { return cliCore_->Send(frame); });
+    return ClientCore::syncInvoke(cliCore_, [this, frame]() { return cliCore_->Send(frame); });
 }

Gui/Control/ConnectControl.cpp

@@ -18,10 +18,38 @@ Connecter::~Connecter()
     delete ui;
 }
 
-void Connecter::SetClientCore(ClientCore* clientCore)
+void Connecter::RunWorker(ClientCore* clientCore)
 {
     clientCore_ = clientCore;
     connect(clientCore_, &ClientCore::sigClients, this, &Connecter::HandleClients);
+
+    sockWorker_ = new SocketWorker(clientCore_, nullptr);
+    clientCore_->moveToThread(sockWorker_);
+
+    connect(clientCore_, &ClientCore::conSuccess, this, [this]() {
+        setState(ConnectState::CS_CONNECTED);
+        qInfo() << QString(tr("Connected."));
+    });
+
+    connect(clientCore_, &ClientCore::conFailed, this, [this]() {
+        setState(ConnectState::CS_DISCONNECT);
+        qInfo() << QString(tr("Connect failed."));
+    });
+
+    connect(clientCore_, &ClientCore::connecting, this, [this]() {
+        setState(ConnectState::CS_CONNECTING);
+        qInfo() << QString(tr("Connecting..."));
+    });
+
+    connect(clientCore_, &ClientCore::sigDisconnect, this, [this]() {
+        setState(ConnectState::CS_DISCONNECT);
+        qInfo() << QString(tr("Disconnected."));
+    });
+
+    connect(this, &Connecter::sigDoConnect, clientCore_, &ClientCore::DoConnect);
+    connect(sockWorker_, &QThread::finished, sockWorker_, &QObject::deleteLater);
+
+    sockWorker_->start();
 }
 
 void Connecter::SetRemoteCall(const std::function<void(const QString& id)>& call)
@@ -46,33 +74,7 @@ void Connecter::Connect()
         FTCommon::msg(this, tr("IP or Port is empty."));
         return;
     }
-
+    emit sigDoConnect(ip, port.toInt());
-    sockWorker_ = new SocketWorker(clientCore_, nullptr);
-    clientCore_->moveToThread(sockWorker_);
-
-    connect(sockWorker_, &SocketWorker::conSuccess, this, [this]() {
-        setState(ConnectState::CS_CONNECTED);
-        qInfo() << QString(tr("Connected."));
-    });
-
-    connect(sockWorker_, &SocketWorker::conFailed, this, [this]() {
-        setState(ConnectState::CS_DISCONNECT);
-        qInfo() << QString(tr("Connect failed."));
-    });
-
-    connect(sockWorker_, &SocketWorker::connecting, this, [this]() {
-        setState(ConnectState::CS_CONNECTING);
-        qInfo() << QString(tr("Connecting..."));
-    });
-
-    connect(sockWorker_, &SocketWorker::disconnected, this, [this]() {
-        setState(ConnectState::CS_DISCONNECT);
-        qInfo() << QString(tr("Disconnected."));
-    });
-
-    connect(sockWorker_, &QThread::finished, sockWorker_, &QObject::deleteLater);
-    sockWorker_->SetConnectInfo(ip, port.toInt());
-    sockWorker_->start();
 }
 
 void Connecter::setState(ConnectState cs)
@@ -107,7 +109,7 @@ void Connecter::RefreshClient()
     auto frame = QSharedPointer<FrameBuffer>::create();
     frame->data = infoPack(info);
     frame->type = FBT_SER_MSG_ASKCLIENTS;
-    auto sendRet = ClientCore::asyncInvoke(clientCore_, [this, frame]() { return clientCore_->Send(frame); });
+    auto sendRet = ClientCore::syncInvoke(clientCore_, [this, frame]() { return clientCore_->Send(frame); });
     if (!sendRet) {
         qCritical() << QString(tr("send ask client list failed."));
         return;

Gui/Control/ConnectControl.h

@@ -26,12 +26,13 @@ public:
     ~Connecter();
 
 public:
-    void SetClientCore(ClientCore* clientCore);
+    void RunWorker(ClientCore* clientCore);
     void SetRemoteCall(const std::function<void(const QString& id)>& call);
     void HandleClients(const InfoClientVec& clients);
 
 signals:
     void sendConnect(ConnectState cs);
+    void sigDoConnect(const QString& ip, quint16 port);
 
 private:
     void InitControl();

Gui/frelayGUI.cpp

@@ -40,7 +40,7 @@ void frelayGUI::InitControl()
     transform_->SetClientCore(clientCore_);
 
     connecter_ = new Connecter(this);
-    connecter_->SetClientCore(clientCore_);
+    connecter_->RunWorker(clientCore_);
     connecter_->SetRemoteCall([this](const QString& id) { clientCore_->SetRemoteID(id); });
 
     localFile_ = new FileManager(this);
@@ -88,12 +88,9 @@ void frelayGUI::ControlLayout()
 
 void frelayGUI::ControlMsgHander(QtMsgType type, const QMessageLogContext& context, const QString& msg)
 {
-    Q_UNUSED(context);
+    QMetaObject::invokeMethod(
-
+        qApp,
-    //if (!qApp || !qobject_cast<frelayGUI*>(qApp->activeWindow())) {
+        [type, msg]() {
-    //    return;
-    //}
-
             switch (type) {
             case QtDebugMsg:
                 logPrint->Debug(msg);
@@ -104,14 +101,12 @@ void frelayGUI::ControlMsgHander(QtMsgType type, const QMessageLogContext& conte
             case QtWarningMsg:
                 logPrint->Warn(msg);
                 break;
-    case QtCriticalMsg:
+            default:
-    case QtFatalMsg:
                 logPrint->Error(msg);
                 break;
-    default:
-        logPrint->Error("Unknown QtMsgType type.");
-        break;
             }
+        },
+        Qt::QueuedConnection);
 }
 
 void frelayGUI::HandleTask(const QVector<TransTask>& tasks)