Async/Await in C?

The question explains itself, but for context: I am writing an Over-Engineered HTTP server for fun's and learning's sake, and I have hit a conceptual roadblock. Currently, the server works thusly: One (1) thread sits on a port and accept()s incoming requests and adds them to a queue, then pthread_cond_signal()s a condition that... ... Four (4) threads (request handlers) are pthread_cond_wait()ing on, one of whom will pick up the request and parse it. Here comes the issue: Similar to that the server simply adds each request to a queue, I want each request handler to, once it's parsed a request, hand it off to some HTTP_<method> function, then pick up the next request from the queue, only returning to the original point of execution (the point where HTTP_<method> was called), where it then returns a response. The only two ways that comes to mind of doing this, one of them require N more threads sitting on another queue, which I feel weird about, and the other requires some Macro Fuckery that I found on a Github repository then lost, so Idk if it even is feasible. How do I go forward from here? TL;DR: Async Await for C; good, bad, or disgustingly ugly? Potential other solutions?