Synchronously Wait for Message in Web-Worker

Question

Is there some way to synchronously wait for or check for a new message in a web-worker?

I have a large complicated body of code (compiled LLVM from emscripten) that I c

Answer 1

A crude hack to do this could be to use a synchronous API, such as the FileSystem API, and use a temporary file as a synchronising mechanism.

In your example, the emscripten code could issue a synchronous read on a file, while the UI thread writes to the same file, effectively unblocking the worker.