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101 lines
3.3 KiB
101 lines
3.3 KiB
/*
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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) 2021 Jon Evans <jon@craftyjon.com>
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* Copyright (C) 2021-2022 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 KICAD_SYMBOL_ASYNC_LOADER_H
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#define KICAD_SYMBOL_ASYNC_LOADER_H
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#include <atomic>
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#include <future>
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#include <mutex>
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#include <unordered_map>
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#include <vector>
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#include <wx/string.h>
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class LIB_SYMBOL;
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class PROGRESS_REPORTER;
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class SYMBOL_LIB_TABLE;
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class SYMBOL_ASYNC_LOADER
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{
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public:
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/**
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* Constructs a loader for symbol libraries
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* @param aNicknames is a list of library nicknames to load
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* @param aTable is a pointer to the symbol library table to load libraries for
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* @param aOnlyPowerSymbols, if true, will only return power symbols in the output map
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* @param aOutput will be filled with the loaded parts
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* @param aReporter will be used to repord progress, of not null
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*/
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SYMBOL_ASYNC_LOADER( const std::vector<wxString>& aNicknames,
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SYMBOL_LIB_TABLE* aTable, bool aOnlyPowerSymbols = false,
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std::unordered_map<wxString, std::vector<LIB_SYMBOL*>>* aOutput = nullptr,
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PROGRESS_REPORTER* aReporter = nullptr );
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~SYMBOL_ASYNC_LOADER();
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/**
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* Spins up threads to load all the libraries in m_nicknames
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*/
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void Start();
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/**
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* Finalizes the threads and combines the output into the target output map
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*/
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bool Join();
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///< Return true if loading is done
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bool Done();
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///< Returns a string containing any errors generated during the load
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const wxString& GetErrors() const { return m_errors; }
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///< Represents a pair of <nickname, loaded parts list>
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typedef std::pair<wxString, std::vector<LIB_SYMBOL*>> LOADED_PAIR;
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private:
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///< Worker job that loads libraries and returns a list of pairs of <nickname, loaded parts>
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std::vector<LOADED_PAIR> worker();
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///< list of libraries to load
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std::vector<wxString> m_nicknames;
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///< Handle to the symbol library table being loaded into
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SYMBOL_LIB_TABLE* m_table;
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///< True if we are loading only power symbols
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bool m_onlyPowerSymbols;
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///< Handle to map that will be filled with the loaded parts per library
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std::unordered_map<wxString, std::vector<LIB_SYMBOL*>>* m_output;
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///< Progress reporter (may be null)
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PROGRESS_REPORTER* m_reporter;
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size_t m_threadCount;
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std::atomic<size_t> m_nextLibrary;
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wxString m_errors;
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std::mutex m_errorMutex;
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std::vector<std::future<std::vector<LOADED_PAIR>>> m_returns;
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};
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#endif
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