Regression: Callback_handler not run as a infinite loop, tempo changes not tracked

[tbazin]

node-abletonlink/src/napi-abletonlink.hpp

Lines 69 to 72 in bc8c344

	static void callback_handler() {
	std::lock_guard<std::mutex> sl(bbb_mutex());
	while(!bbb_tempo_queue().empty()) {
	auto &&front = bbb_tempo_queue().front();

The callback_handler function should be run as an infinite loop. This was previously handled by libuv:

node-abletonlink/src/node-abletonlink.hpp

Line 95 in 8b5122f

uv_async_init(uv_default_loop(), &async(), bbb_async_cb_handler);

but has not been replaced after the removal of libuv.

In the absence of such a loop, the callback_handler thread stops after a single run through the different update piles and stops listening to further changes thereafter.

I managed to fixed the issue by enclosing the part after the mutex request into a simple while (true) {... loop, but I'm not 100% certain that this would be the appropriate way of doing things since I actually have no experience whatsoever with C++ 😄 If this approach seems alright though, I'd be happy to submit this very simple PR.

[2bbb]

@tbazin

omg!!
i can't remember what i want to do, but maybe you are correct!
please submit PR!

thanks!