Method flush

src/IECoreScene/SceneCache.cpp:1738–1776

Called from the destructor of the root location. It triggers flush recursivelly on all the child locations. It also sets m_sampleTimesMap to NULL which prevents further modification on this and all child scene interface objects through their call to writable(). Responsible for writing missing data such as all the sample times from object,transform,attributes and bounds. And also computes the anima

		// times from object,transform,attributes and bounds. And also computes the
		// animated bounding boxes in case they were not explicitly writen.
		void flush()
		{
			// AncestorTags must be written before visiting children
			if ( m_parent )
			{
				NameList tags;
				// get ancestor tags from parent
				m_parent->readTags( tags, SceneInterface::LocalTag | SceneInterface::AncestorTag );
				writeTags( tags, SceneInterface::AncestorTag );
			}

			/// first call flush recursively on children...
			for ( std::map< SceneCache::Name, WriterImplementationPtr >::const_iterator cit = m_children.begin(); cit != m_children.end(); cit++ )
			{
				cit->second->flush();
			}

			try
			{
				doFlush();
			}
			catch( std::exception &e )
			{
				SceneCache::Path p;
				std::string stringPath;
				path( p );
				IECoreScene::SceneInterface::pathToString( p, stringPath );
				std::string type = boost::core::demangle( typeid( e ).name() );
				throw IECore::IOException( boost::str( boost::format( "%1% : %2% ( for location \"%3%\" )" ) % type % e.what() % stringPath ) );
			}
			catch( ... )
			{
				SceneCache::Path p;
				std::string stringPath;
				path( p );
				IECoreScene::SceneInterface::pathToString( p, stringPath );
				throw IECore::IOException( boost::str( boost::format( "Unknown exception while flushing data ( for location %1% )" ) % stringPath ) );
			}
		}

		void doFlush()
		{