139 lines
3.7 KiB
C++
139 lines
3.7 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) 2021 Jon Evans <jon@craftyjon.com>
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* Copyright (C) 2021 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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#include <thread>
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#include <core/wx_stl_compat.h>
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#include <symbol_async_loader.h>
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#include <symbol_lib_table.h>
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#include <widgets/progress_reporter.h>
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SYMBOL_ASYNC_LOADER::SYMBOL_ASYNC_LOADER( const std::vector<wxString>& aNicknames,
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SYMBOL_LIB_TABLE* aTable, bool aOnlyPowerSymbols,
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std::unordered_map<wxString, std::vector<LIB_PART*>>* aOutput,
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PROGRESS_REPORTER* aReporter ) :
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m_nicknames( aNicknames ),
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m_table( aTable ),
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m_onlyPowerSymbols( aOnlyPowerSymbols ),
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m_output( aOutput ),
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m_reporter( aReporter ),
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m_nextLibrary( 0 ),
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m_canceled( false )
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{
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wxASSERT( m_table );
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m_threadCount = std::max<size_t>( 1, std::thread::hardware_concurrency() - 1 );
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m_returns.resize( m_threadCount );
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}
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SYMBOL_ASYNC_LOADER::~SYMBOL_ASYNC_LOADER()
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{
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Abort();
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}
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void SYMBOL_ASYNC_LOADER::Start()
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{
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for( size_t ii = 0; ii < m_threadCount; ++ii )
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m_returns[ii] = std::async( std::launch::async, &SYMBOL_ASYNC_LOADER::worker, this );
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}
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bool SYMBOL_ASYNC_LOADER::Join()
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{
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for( size_t ii = 0; ii < m_threadCount; ++ii )
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{
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if( !m_returns[ii].valid() )
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continue;
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m_returns[ii].wait();
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const std::vector<LOADED_PAIR>& ret = m_returns[ii].get();
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if( m_output && !ret.empty() )
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{
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for( const LOADED_PAIR& pair : ret )
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{
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// Don't show libraries that had no power symbols
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if( m_onlyPowerSymbols && pair.second.empty() )
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continue;
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// *Do* show empty libraries in the normal case
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m_output->insert( pair );
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}
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}
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}
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return true;
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}
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void SYMBOL_ASYNC_LOADER::Abort()
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{
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m_canceled.store( true );
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Join();
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}
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bool SYMBOL_ASYNC_LOADER::Done()
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{
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return m_nextLibrary.load() >= m_nicknames.size();
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}
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std::vector<SYMBOL_ASYNC_LOADER::LOADED_PAIR> SYMBOL_ASYNC_LOADER::worker()
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{
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std::vector<LOADED_PAIR> ret;
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bool onlyPower = m_onlyPowerSymbols;
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for( size_t libraryIndex = m_nextLibrary++; libraryIndex < m_nicknames.size();
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libraryIndex = m_nextLibrary++ )
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{
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if( m_canceled.load() )
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break;
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const wxString& nickname = m_nicknames[libraryIndex];
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LOADED_PAIR pair( nickname, {} );
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try
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{
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m_table->LoadSymbolLib( pair.second, nickname, onlyPower );
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ret.emplace_back( std::move( pair ) );
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}
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catch( const IO_ERROR& ioe )
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{
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wxString msg = wxString::Format( _( "Error loading symbol library %s.\n\n%s\n" ),
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nickname, ioe.What() );
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std::lock_guard<std::mutex> lock( m_errorMutex );
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m_errors += msg;
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}
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if( m_reporter )
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m_reporter->AdvancePhase( wxString::Format( _( "Loading library \"%s\"" ), nickname ) );
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}
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return ret;
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}
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