Method QueueCode

src/GCodes/GCodeQueue.cpp:107–138

Try to queue the command in the passed GCodeBuffer. If successful, return true to indicate it has been queued. If the queue is full, return false. Caller will wait for space to become available.

// If successful, return true to indicate it has been queued.
// If the queue is full, return false. Caller will wait for space to become available.
bool GCodeQueue::QueueCode(const GCodeBuffer &gb) noexcept
{
	// Can we queue this code somewhere?
	if (freeItems == nullptr)
	{
		return false;
	}

	// Unlink a free element and assign gb's code to it
	QueuedCode * const code = _ecv_not_null(freeItems);
	freeItems = code->next;
	code->AssignFrom(gb);
	code->executeAtMove = reprap.GetMove().GetScheduledMoves();
	code->next = nullptr;

	// Append it to the list of queued codes
	if (queuedItems == nullptr)
	{
		queuedItems = code;
	}
	else
	{
		QueuedCode * last = _ecv_not_null(queuedItems);
		while (last->Next() != nullptr)
		{
			last = _ecv_not_null(last->Next());
		}
		last->next = code;
	}

	return true;
}

bool GCodeQueue::FillBuffer(GCodeBuffer *gb) noexcept
{