Method CheckSessions

src/Networking/HttpResponder.cpp:1575–1626

Check for timed out sessions and old reply buffers static*/

// Check for timed out sessions and old reply buffers
/*static*/ void HttpResponder::CheckSessions() noexcept
{
	unsigned int clientsTimedOut = 0;
	const uint32_t now = millis();
	for (size_t i = numSessions; i != 0; )
	{
		--i;
		if (now - sessions[i].lastQueryTime > HttpSessionTimeout)
		{
			RemoveSession(i);
			clientsTimedOut++;
		}
	}

	// If we cannot send the G-Code reply to anyone, we may free up some run-time space by dumping it
	if (clientsTimedOut != 0)
	{
		bool released = false;
		{
			MutexLocker lock(gcodeReplyMutex);

			clientsServed += clientsTimedOut;			// assume the disconnected clients haven't fetched the G-Code reply yet
			if (numSessions == 0 || clientsServed >= numSessions)
			{
				while (!gcodeReply.IsEmpty())
				{
					OutputBuffer *buf = gcodeReply.Pop();
					OutputBuffer::ReleaseAll(buf);
				}
				released = true;
			}
			clientsServed = 0;
		}
		if (released && reprap.Debug(Module::Webserver))
		{
			debugPrintf("Released gcodeReply, free buffers=%u\n", OutputBuffer::GetFreeBuffers());
		}
	}
	else if (!gcodeReply.IsEmpty())
	{
		// Check whether we can time out any GCode buffers
		bool released;
		{
			MutexLocker lock(gcodeReplyMutex);
			released = gcodeReply.ApplyTimeout(HttpSessionTimeout);
		}
		if (released && reprap.Debug(Module::Webserver))
		{
			debugPrintf("Timed out gcodeReply, free buffers=%u\n", OutputBuffer::GetFreeBuffers());
		}
	}
}

/*static*/ void HttpResponder::CommonDiagnostics(const StringRef& reply) noexcept
{