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kicad/pcbnew/footprint_info_impl.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2011 Jean-Pierre Charras, <jp.charras@wanadoo.fr>
* Copyright (C) 2013-2016 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 1992-2019 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <footprint_info_impl.h>
#include <class_module.h>
#include <footprint_info.h>
#include <fp_lib_table.h>
#include <html_messagebox.h>
#include <io_mgr.h>
#include <kicad_string.h>
#include <kiface_ids.h>
#include <kiway.h>
#include <lib_id.h>
#include <pgm_base.h>
#include <wildcards_and_files_ext.h>
#include <widgets/progress_reporter.h>
#include <thread>
#include <mutex>
void FOOTPRINT_INFO_IMPL::load()
{
FP_LIB_TABLE* fptable = m_owner->GetTable();
wxASSERT( fptable );
const MODULE* footprint = fptable->GetEnumeratedFootprint( m_nickname, m_fpname );
if( footprint == NULL ) // Should happen only with malformed/broken libraries
{
m_pad_count = 0;
m_unique_pad_count = 0;
}
else
{
m_pad_count = footprint->GetPadCount( DO_NOT_INCLUDE_NPTH );
m_unique_pad_count = footprint->GetUniquePadCount( DO_NOT_INCLUDE_NPTH );
m_keywords = footprint->GetKeywords();
m_doc = footprint->GetDescription();
}
m_loaded = true;
}
bool FOOTPRINT_LIST_IMPL::CatchErrors( const std::function<void()>& aFunc )
{
try
{
aFunc();
}
catch( const IO_ERROR& ioe )
{
m_errors.move_push( std::make_unique<IO_ERROR>( ioe ) );
return false;
}
catch( const std::exception& se )
{
// This is a round about way to do this, but who knows what THROW_IO_ERROR()
// may be tricked out to do someday, keep it in the game.
try
{
THROW_IO_ERROR( se.what() );
}
catch( const IO_ERROR& ioe )
{
m_errors.move_push( std::make_unique<IO_ERROR>( ioe ) );
}
return false;
}
return true;
}
void FOOTPRINT_LIST_IMPL::loader_job()
{
wxString nickname;
while( m_queue_in.pop( nickname ) && !m_cancelled )
{
CatchErrors( [this, &nickname]() {
m_lib_table->PrefetchLib( nickname );
m_queue_out.push( nickname );
} );
m_count_finished.fetch_add( 1 );
if( m_progress_reporter )
m_progress_reporter->AdvanceProgress();
}
}
bool FOOTPRINT_LIST_IMPL::ReadFootprintFiles( FP_LIB_TABLE* aTable, const wxString* aNickname,
PROGRESS_REPORTER* aProgressReporter )
{
long long int generatedTimestamp = aTable->GenerateTimestamp( aNickname );
if( generatedTimestamp == m_list_timestamp )
return true;
m_progress_reporter = aProgressReporter;
if( m_progress_reporter )
{
m_progress_reporter->SetMaxProgress( m_queue_in.size() );
m_progress_reporter->Report( _( "Fetching Footprint Libraries" ) );
}
m_cancelled = false;
FOOTPRINT_ASYNC_LOADER loader;
loader.SetList( this );
loader.Start( aTable, aNickname );
while( !m_cancelled && (int)m_count_finished.load() < m_loader->m_total_libs )
{
if( m_progress_reporter && !m_progress_reporter->KeepRefreshing() )
m_cancelled = true;
wxMilliSleep( 20 );
}
if( m_cancelled )
{
loader.Abort();
}
else
{
if( m_progress_reporter )
{
m_progress_reporter->SetMaxProgress( m_queue_out.size() );
m_progress_reporter->AdvancePhase();
m_progress_reporter->Report( _( "Loading Footprints" ) );
}
loader.Join();
if( m_progress_reporter )
m_progress_reporter->AdvancePhase();
}
if( m_cancelled )
m_list_timestamp = 0; // God knows what we got before we were cancelled
else
m_list_timestamp = generatedTimestamp;
return m_errors.empty();
}
void FOOTPRINT_LIST_IMPL::StartWorkers( FP_LIB_TABLE* aTable, wxString const* aNickname,
FOOTPRINT_ASYNC_LOADER* aLoader, unsigned aNThreads )
{
m_loader = aLoader;
m_lib_table = aTable;
// Clear data before reading files
m_count_finished.store( 0 );
m_errors.clear();
m_list.clear();
m_threads.clear();
m_queue_in.clear();
m_queue_out.clear();
if( aNickname )
m_queue_in.push( *aNickname );
else
{
for( auto const& nickname : aTable->GetLogicalLibs() )
m_queue_in.push( nickname );
}
m_loader->m_total_libs = m_queue_in.size();
for( unsigned i = 0; i < aNThreads; ++i )
{
m_threads.emplace_back( &FOOTPRINT_LIST_IMPL::loader_job, this );
}
}
void FOOTPRINT_LIST_IMPL::StopWorkers()
{
std::lock_guard<std::mutex> lock1( m_join );
// To safely stop our workers, we set the cancellation flag (they will each
// exit on their next safe loop location when this is set). Then we need to wait
// for all threads to finish as closing the implementation will free the queues
// that the threads write to.
for( auto& i : m_threads )
i.join();
m_threads.clear();
m_queue_in.clear();
m_count_finished.store( 0 );
// If we have cancelled in the middle of a load, clear our timestamp to re-load next time
if( m_cancelled )
m_list_timestamp = 0;
}
bool FOOTPRINT_LIST_IMPL::JoinWorkers()
{
{
std::lock_guard<std::mutex> lock1( m_join );
for( auto& i : m_threads )
i.join();
m_threads.clear();
m_queue_in.clear();
m_count_finished.store( 0 );
}
size_t total_count = m_queue_out.size();
LOCALE_IO toggle_locale;
// Parse the footprints in parallel. WARNING! This requires changing the locale, which is
// GLOBAL. It is only threadsafe to construct the LOCALE_IO before the threads are created,
// destroy it after they finish, and block the main (GUI) thread while they work. Any deviation
// from this will cause nasal demons.
//
// TODO: blast LOCALE_IO into the sun
SYNC_QUEUE<std::unique_ptr<FOOTPRINT_INFO>> queue_parsed;
std::vector<std::thread> threads;
for( size_t ii = 0; ii < std::thread::hardware_concurrency() + 1; ++ii )
{
threads.emplace_back( [this, &queue_parsed]() {
wxString nickname;
while( this->m_queue_out.pop( nickname ) && !m_cancelled )
{
wxArrayString fpnames;
try
{
m_lib_table->FootprintEnumerate( fpnames, nickname, false );
}
catch( const IO_ERROR& ioe )
{
m_errors.move_push( std::make_unique<IO_ERROR>( ioe ) );
}
catch( const std::exception& se )
{
// This is a round about way to do this, but who knows what THROW_IO_ERROR()
// may be tricked out to do someday, keep it in the game.
try
{
THROW_IO_ERROR( se.what() );
}
catch( const IO_ERROR& ioe )
{
m_errors.move_push( std::make_unique<IO_ERROR>( ioe ) );
}
}
for( unsigned jj = 0; jj < fpnames.size() && !m_cancelled; ++jj )
{
wxString fpname = fpnames[jj];
FOOTPRINT_INFO* fpinfo = new FOOTPRINT_INFO_IMPL( this, nickname, fpname );
queue_parsed.move_push( std::unique_ptr<FOOTPRINT_INFO>( fpinfo ) );
}
if( m_progress_reporter )
m_progress_reporter->AdvanceProgress();
m_count_finished.fetch_add( 1 );
}
} );
}
while( !m_cancelled && (size_t)m_count_finished.load() < total_count )
{
if( m_progress_reporter && !m_progress_reporter->KeepRefreshing() )
m_cancelled = true;
wxMilliSleep( 30 );
}
for( auto& thr : threads )
thr.join();
std::unique_ptr<FOOTPRINT_INFO> fpi;
while( queue_parsed.pop( fpi ) )
m_list.push_back( std::move( fpi ) );
std::sort( m_list.begin(), m_list.end(), []( std::unique_ptr<FOOTPRINT_INFO> const& lhs,
std::unique_ptr<FOOTPRINT_INFO> const& rhs ) -> bool
{
return *lhs < *rhs;
} );
return m_errors.empty();
}
FOOTPRINT_LIST_IMPL::FOOTPRINT_LIST_IMPL() :
m_loader( nullptr ),
m_count_finished( 0 ),
m_list_timestamp( 0 ),
m_progress_reporter( nullptr ),
m_cancelled( false )
{
}
FOOTPRINT_LIST_IMPL::~FOOTPRINT_LIST_IMPL()
{
StopWorkers();
}
void FOOTPRINT_LIST_IMPL::WriteCacheToFile( wxTextFile* aCacheFile )
{
if( aCacheFile->Exists() )
{
if( !aCacheFile->Open() )
return;
aCacheFile->Clear();
}
else
{
if( !aCacheFile->Create() )
return;
}
aCacheFile->AddLine( wxString::Format( "%lld", m_list_timestamp ) );
for( auto& fpinfo : m_list )
{
aCacheFile->AddLine( fpinfo->GetLibNickname() );
aCacheFile->AddLine( fpinfo->GetName() );
aCacheFile->AddLine( EscapeString( fpinfo->GetDescription(), CTX_LINE ) );
aCacheFile->AddLine( EscapeString( fpinfo->GetKeywords(), CTX_LINE ) );
aCacheFile->AddLine( wxString::Format( "%d", fpinfo->GetOrderNum() ) );
aCacheFile->AddLine( wxString::Format( "%u", fpinfo->GetPadCount() ) );
aCacheFile->AddLine( wxString::Format( "%u", fpinfo->GetUniquePadCount() ) );
}
aCacheFile->Write();
aCacheFile->Close();
}
void FOOTPRINT_LIST_IMPL::ReadCacheFromFile( wxTextFile* aCacheFile )
{
m_list_timestamp = 0;
m_list.clear();
try
{
if( aCacheFile->Exists() && aCacheFile->Open() )
{
aCacheFile->GetFirstLine().ToLongLong( &m_list_timestamp );
while( aCacheFile->GetCurrentLine() + 6 < aCacheFile->GetLineCount() )
{
wxString libNickname = aCacheFile->GetNextLine();
wxString name = aCacheFile->GetNextLine();
wxString description = UnescapeString( aCacheFile->GetNextLine() );
wxString keywords = UnescapeString( aCacheFile->GetNextLine() );
int orderNum = wxAtoi( aCacheFile->GetNextLine() );
unsigned int padCount = (unsigned) wxAtoi( aCacheFile->GetNextLine() );
unsigned int uniquePadCount = (unsigned) wxAtoi( aCacheFile->GetNextLine() );
auto* fpinfo = new FOOTPRINT_INFO_IMPL( libNickname, name, description, keywords,
orderNum, padCount, uniquePadCount );
m_list.emplace_back( std::unique_ptr<FOOTPRINT_INFO>( fpinfo ) );
}
}
}
catch( ... )
{
// whatever went wrong, invalidate the cache
m_list_timestamp = 0;
}
// Sanity check: an empty list is very unlikely to be correct.
if( m_list.size() == 0 )
m_list_timestamp = 0;
if( aCacheFile->IsOpened() )
aCacheFile->Close();
}
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