Function getCounts

src/jrd/inf.cpp:128–157

	typedef HalfStaticArray<UCHAR, BUFFER_SMALL> CountsBuffer;

	ULONG getCounts(thread_db* tdbb, RuntimeStatistics::StatType type, CountsBuffer& buffer)
	{
		const Attachment* const attachment = tdbb->getAttachment();
		const RuntimeStatistics& stats = attachment->att_stats;

		UCHAR num_buffer[BUFFER_TINY];

		buffer.clear();
		FB_SIZE_T buffer_length = 0;

		for (RuntimeStatistics::Iterator iter = stats.begin(); iter != stats.end(); ++iter)
		{
			const USHORT relation_id = (*iter).getRelationId();
			const SINT64 n = (*iter).getCounter(type);

			if (n)
			{
				const USHORT length = INF_convert(n, num_buffer);
				const FB_SIZE_T new_buffer_length = buffer_length + length + sizeof(USHORT);
				buffer.grow(new_buffer_length);
				UCHAR* p = buffer.begin() + buffer_length;
				STUFF_WORD(p, relation_id);
				memcpy(p, num_buffer, length);
				p += length;
				buffer_length = new_buffer_length;
			}
		}

		return buffer.getCount();
	}
}