Method addCable_NoLock

src/engine/Engine.cpp:979–1036

void Engine::addCable_NoLock(Cable* cable) {
	assert(cable);
	// Check cable properties
	assert(cable->inputModule);
	assert(cable->outputModule);
	Input& input = cable->inputModule->inputs[cable->inputId];
	Output& output = cable->outputModule->outputs[cable->outputId];
	bool inputWasConnected = false;
	bool outputWasConnected = false;
	for (Cable* cable2 : internal->cables) {
		// Check that the cable is not already added
		assert(cable2 != cable);
		// Check that cable isn't similar to another cable
		// assert(!(cable2->inputModule == cable->inputModule && cable2->inputId == cable->inputId && cable2->outputModule == cable->outputModule && cable2->outputId == cable->outputId));
		// Check if input is already connected to a cable
		if (cable2->inputModule == cable->inputModule && cable2->inputId == cable->inputId)
			inputWasConnected = true;
		// Check if output is already connected to a cable
		if (cable2->outputModule == cable->outputModule && cable2->outputId == cable->outputId)
			outputWasConnected = true;
	}
	// Set ID if unset or collides with an existing ID
	while (cable->id < 0 || internal->cablesCache.find(cable->id) != internal->cablesCache.end()) {
		// Generate random 52-bit ID
		cable->id = random::u64() % (1ull << 53);
	}
	// Add the cable
	internal->cables.push_back(cable);
	// Sort cable by input so they are grouped in stepFrame()
	std::sort(internal->cables.begin(), internal->cables.end(), [](Cable* a, Cable* b) {
		return std::make_tuple(a->inputModule, a->inputId) < std::make_tuple(b->inputModule, b->inputId);
	});
	// Set default number of input/output channels
	if (!inputWasConnected) {
		input.channels = 1;
	}
	if (!outputWasConnected) {
		output.channels = 1;
	}
	// Add caches
	internal->cablesCache[cable->id] = cable;
	// Dispatch input port event
	if (!inputWasConnected) {
		Module::PortChangeEvent e;
		e.connecting = true;
		e.type = Port::INPUT;
		e.portId = cable->inputId;
		cable->inputModule->onPortChange(e);
	}
	// Dispatch output port event if its state went from disconnected to connected.
	if (!outputWasConnected) {
		Module::PortChangeEvent e;
		e.connecting = true;
		e.type = Port::OUTPUT;
		e.portId = cable->outputId;
		cable->outputModule->onPortChange(e);
	}
}