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https://gitlab.com/kicad/code/kicad.git
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ee34aab07a
There are three related changes here to harden our handling of threads in the footprint async loader. 1) Footprint async loader explicitly aborts any remaining loader threads on exit. 2) We protect the thread join by a mutex 3) We do not pause during no-wait routines
102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 1992-2018 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FOOTPRINT_INFO_IMPL_H
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#define FOOTPRINT_INFO_IMPL_H
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#include <atomic>
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#include <functional>
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#include <memory>
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#include <thread>
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#include <vector>
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#include <footprint_info.h>
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#include <sync_queue.h>
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class LOCALE_IO;
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class FOOTPRINT_INFO_IMPL : public FOOTPRINT_INFO
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{
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public:
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FOOTPRINT_INFO_IMPL( FOOTPRINT_LIST* aOwner, const wxString& aNickname,
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const wxString& aFootprintName )
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{
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m_owner = aOwner;
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m_loaded = false;
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m_nickname = aNickname;
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m_fpname = aFootprintName;
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m_num = 0;
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m_pad_count = 0;
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m_unique_pad_count = 0;
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#if !USE_FPI_LAZY
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load();
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#endif
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}
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protected:
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virtual void load() override;
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};
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class FOOTPRINT_LIST_IMPL : public FOOTPRINT_LIST
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{
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FOOTPRINT_ASYNC_LOADER* m_loader;
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const wxString* m_library;
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std::vector<std::thread> m_threads;
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SYNC_QUEUE<wxString> m_queue_in;
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SYNC_QUEUE<wxString> m_queue_out;
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std::atomic_size_t m_count_finished;
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long long m_list_timestamp;
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PROGRESS_REPORTER* m_progress_reporter;
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std::atomic_bool m_cancelled;
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std::mutex m_join;
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/**
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* Call aFunc, pushing any IO_ERRORs and std::exceptions it throws onto m_errors.
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*
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* @return true if no error occurred.
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*/
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bool CatchErrors( const std::function<void()>& aFunc );
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protected:
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void StartWorkers( FP_LIB_TABLE* aTable, wxString const* aNickname,
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FOOTPRINT_ASYNC_LOADER* aLoader, unsigned aNThreads ) override;
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bool JoinWorkers() override;
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void StopWorkers() override;
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/**
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* Function loader_job
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* loads footprints from m_queue_in.
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*/
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void loader_job();
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public:
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FOOTPRINT_LIST_IMPL();
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virtual ~FOOTPRINT_LIST_IMPL();
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bool ReadFootprintFiles( FP_LIB_TABLE* aTable, const wxString* aNickname = nullptr,
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PROGRESS_REPORTER* aProgressReporter = nullptr ) override;
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};
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extern FOOTPRINT_LIST_IMPL GFootprintList; // KIFACE scope.
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#endif // FOOTPRINT_INFO_IMPL_H
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