Coroutines

[Woof]

I see that coroutine support has been added in the new 1.25.0 release but I can't find any examples or documentation. If I implement my main loop as a coroutine, will calling emscripten_yield() allow the browser to service events?

[王璐]

Not exactly.
The coroutine created by emscripten API must be "stepped" using emscipten_coroutine_next (cannot remember the exact name), so probably one possible way is to write like this:

int main_loop_coroutine(...) {
   ...
   emscripten_yield();
}

int main() {
  auto co = emscripten_coroutine_create(...)
  while(emscripten_coroutine_next(co) {
     emscripten_sleep(1);
  }
  return 0;
}

But an easier way is to write "while(1) { do_something(); sleep(1); }" instead of coroutines.


regards,
- Lu

[Woof]

Thanks - I was looking for alternatives to sleep, since I'm blocked on this:

    https://github.com/kripken/emscripten/issues/2663

[Lu Wang]

In fact coroutines are implemented in a very similar way as sleep().

regards,

- Lu

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