Method readNodeV4

src/IECore/StreamIndexedIO.cpp:1764–1896

template < typename F >
NodeBase *StreamIndexedIO::Index::readNodeV4( F &f )
{
	char t;
	f.read( &t, sizeof(char) );

	IndexedIO::EntryType entryType = (IndexedIO::EntryType)t;

	bool isLink = false;

	if ( t == HARDLINK ) /// only at version = 4
	{
		entryType = IndexedIO::File;
		isLink = true;
	}

	const IndexedIO::EntryID *id;
	if (m_version >= 1)
	{
		uint64_t stringId;
		readLittleEndian(f,stringId);
		id = &m_stringCache.findById( stringId );
	}
	else
	{
		uint64_t entrySize;
		readLittleEndian( f,entrySize );
		char *s = new char[entrySize+1];
		f.read( s, entrySize );
		s[entrySize] = '\0';
		id = new IndexedIO::EntryID(s);
		delete[] s;
	}

	IndexedIO::DataType dataType = IndexedIO::Invalid;
	uint64_t arrayLength = 0;

	if ( m_version < 2 || (!isLink && entryType == IndexedIO::File) )
	{
		f.read( &t, sizeof(char) );
		dataType = (IndexedIO::DataType)t;

		if ( IndexedIO::Entry::isArray( dataType ) || m_version < 3 )
		{
			readLittleEndian( f,arrayLength );
		}
	}

	uint64_t nodeId;
	readLittleEndian( f,nodeId );

	uint64_t parentId;
	readLittleEndian( f, parentId );

	NodeBase *result = nullptr;

	if ( entryType == IndexedIO::File )
	{
		uint64_t offset, size, decompressedSize = 0, numCompressedBlocks = 0;