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0908daaa0e
Found via `codespell -q 3 -I ../qgis-word-whitelist.txt --skip="*.ts,*.po,./scripts/spell_check"`
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
/***************************************************************************
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qgstestutils.cpp
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--------------------
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begin : January 2018
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copyright : (C) 2018 by Nyall Dawson
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email : nyall.dawson@gmail.com
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***************************************************************************
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* *
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* This program 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 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgstestutils.h"
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#include "qgsvectordataprovider.h"
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#include "qgsconnectionpool.h"
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#include <QtConcurrentMap>
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///@cond PRIVATE
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///
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static void getFeaturesForProvider( const QPair< QgsVectorDataProvider *, QgsFeatureRequest > &pair )
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{
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QgsFeatureIterator it = pair.first->getFeatures( pair.second );
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QgsFeature f;
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while ( it.nextFeature( f ) )
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{
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}
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}
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bool QgsTestUtils::testProviderIteratorThreadSafety( QgsVectorDataProvider *provider, const QgsFeatureRequest &request )
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{
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constexpr int JOBS_TO_RUN = 100;
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QList< QPair< QgsVectorDataProvider *, QgsFeatureRequest > > jobs;
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jobs.reserve( JOBS_TO_RUN );
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for ( int i = 0; i < JOBS_TO_RUN; ++i )
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{
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jobs.append( qMakePair( provider, request ) );
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}
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//freaking hammer the provider with a ton of concurrent requests.
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//thread unsafe providers... you better be ready!!!!
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QtConcurrent::blockingMap( jobs, getFeaturesForProvider );
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return true;
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}
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///@endcond
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