forked from Silverfish/proton-bridge
GODT-1667: bridge-gui spawns bridge process. [skip-ci]
Other: renaming of bridge-gui. WIP: locate bridge exe. WIP: bridge process launch. WIP: cleaner closure of bridge. WIP: grpcClient connection retries. WIP: clean exit when bridge process is killed. Fixed issues from MR review. [skip-ci]. WIP: Fixed gRPC case in CMakelists.txt [skip-ci] It caused issues on Debian. WIP: update gRPC/protobuf and tweaked CMakeLists.txt. [skip-ci] WIP: Fixed a bug where splash screen could not be dismissed. [skip-ci]
This commit is contained in:
114
internal/frontend/bridge-gui/Worker/Overseer.cpp
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114
internal/frontend/bridge-gui/Worker/Overseer.cpp
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// Copyright (c) 2022 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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#include "Pch.h"
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#include "Overseer.h"
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#include "Exception.h"
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//****************************************************************************************************************************************************
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/// \param[in] worker The worker.
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/// \param[in] parent The parent object of the worker.
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//****************************************************************************************************************************************************
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Overseer::Overseer(Worker *worker, QObject *parent)
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: QObject(parent)
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, thread_(new QThread(parent))
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, worker_(worker)
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{
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if (!worker_)
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throw Exception("Overseer cannot accept a nil worker.");
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}
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//****************************************************************************************************************************************************
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//
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//****************************************************************************************************************************************************
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Overseer::~Overseer()
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{
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this->release();
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}
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//****************************************************************************************************************************************************
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/// \param[in] autorelease Should the overseer automatically release the worker and thread when done.
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//****************************************************************************************************************************************************
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void Overseer::startWorker(bool autorelease) const
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{
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if (!worker_)
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throw Exception("Cannot start overseer with null worker.");
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if (!thread_)
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throw Exception("Cannot start overseer with null thread.");
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worker_->moveToThread(thread_);
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connect(thread_, &QThread::started, worker_, &Worker::run);
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connect(worker_, &Worker::finished, [&]() {thread_->quit(); }); // for unkwown reason, connect to the QThread::quit slot does not work...
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connect(worker_, &Worker::error, [&]() { thread_->quit(); });
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if (autorelease)
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{
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connect(worker_, &Worker::error, this, &Overseer::release);
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connect(worker_, &Worker::finished, this, &Overseer::release);
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}
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thread_->start();
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}
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//****************************************************************************************************************************************************
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//
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//****************************************************************************************************************************************************
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void Overseer::release()
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{
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if (worker_)
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{
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worker_->deleteLater();
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worker_ = nullptr;
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}
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if (thread_)
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{
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if (!thread_->isFinished())
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{
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thread_->quit();
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thread_->wait();
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}
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thread_->deleteLater();
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thread_ = nullptr;
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}
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}
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//****************************************************************************************************************************************************
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/// \return true iff the worker is finished.
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//****************************************************************************************************************************************************
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bool Overseer::isFinished() const
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{
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if ((!worker_) || (!worker_->thread()))
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return true;
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return worker_->thread()->isFinished();
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}
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//****************************************************************************************************************************************************
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/// \return The worker.
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//****************************************************************************************************************************************************
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Worker *Overseer::worker() const
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{
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return worker_;
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}
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56
internal/frontend/bridge-gui/Worker/Overseer.h
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56
internal/frontend/bridge-gui/Worker/Overseer.h
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// Copyright (c) 2022 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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#ifndef BRIDGE_QT6_OVERSEER_H
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#define BRIDGE_QT6_OVERSEER_H
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#include "Worker.h"
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//****************************************************************************************************************************************************
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/// \brief Overseer used to manager a worker instance and its associated thread.
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//****************************************************************************************************************************************************
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class Overseer: public QObject
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{
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Q_OBJECT
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public: // member functions.
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explicit Overseer(Worker* worker, QObject* parent); ///< Default constructor.
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Overseer(Overseer const&) = delete; ///< Disabled copy-constructor.
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Overseer(Overseer&&) = delete; ///< Disabled assignment copy-constructor.
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~Overseer() override; ///< Destructor.
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Overseer& operator=(Overseer const&) = delete; ///< Disabled assignment operator.
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Overseer& operator=(Overseer&&) = delete; ///< Disabled move assignment operator.
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bool isFinished() const; ///< Check if the worker is finished.
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Worker *worker() const; ///< Return worker.
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public slots:
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void startWorker(bool autorelease) const; ///< Run the worker.
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void release(); ///< Delete the worker and its thread.
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public: // data members.
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QThread *thread_ { nullptr }; ///< The thread.
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Worker *worker_ { nullptr }; ///< The worker.
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};
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typedef std::unique_ptr<Overseer> UPOverseer; ///< Type definition for unique pointer to Overseer.
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typedef std::shared_ptr<Overseer> SPOverseer; ///< Type definition for shared pointer to Overseer.
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#endif //BRIDGE_QT6_OVERSEER_H
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46
internal/frontend/bridge-gui/Worker/Worker.h
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46
internal/frontend/bridge-gui/Worker/Worker.h
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@ -0,0 +1,46 @@
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// Copyright (c) 2022 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Proton Mail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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#ifndef BRIDGE_QT6_WORKER_H
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#define BRIDGE_QT6_WORKER_H
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//****************************************************************************************************************************************************
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/// \brief Pure virtual class for worker intended to perform a threaded operation.
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//****************************************************************************************************************************************************
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class Worker: public QObject
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{
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Q_OBJECT
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public: // member functions
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explicit Worker(QObject *parent) : QObject(parent) {} ///< Default constructor.
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Worker(Worker const&) = delete; ///< Disabled copy-constructor.
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Worker(Worker&&) = delete; ///< Disabled assignment copy-constructor.
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~Worker() override = default; ///< Destructor.
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Worker& operator=(Worker const&) = delete; ///< Disabled assignment operator.
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Worker& operator=(Worker&&) = delete; ///< Disabled move assignment operator.
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public slots:
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virtual void run() = 0; ///< run the worker.
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signals:
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void started(); ///< Signal for the start of the worker
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void finished(); ///< Signal for the end of the worker
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void error(QString const& message); ///< Signal for errors. After an error, worker ends and finished is NOT emitted.
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};
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#endif //BRIDGE_QT6_WORKER_H
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