Method enumerate

src/jrd/Monitoring.cpp:253–279

void MonitoringData::enumerate(const char* userName, ULONG generation, SessionList& sessions)
{
	const bool init = sessions.isEmpty();

	// When initializing, collect all sessions older than the given generation.
	// Otherwise, remove sessions that have updated their generation.

	for (ULONG offset = HEADER_SIZE; offset < m_sharedMemory->getHeader()->used;)
	{
		const auto ptr = (UCHAR*) m_sharedMemory->getHeader() + offset;
		const auto element = (Element*) ptr;
		const ULONG length = element->getBlockLength();

		if (!userName || !strcmp(element->userName, userName)) // permitted
		{
			if (init)
			{
				if (element->generation < generation)
					sessions.add(element->attId);
			}
			else if (element->generation >= generation)
				sessions.findAndRemove(element->attId);
		}

		offset += length;
	}
}


void MonitoringData::read(const char* userName, TempSpace& temp)