Sync non-busy sleep() for JavaScript

[Lu Wang]

Hi all,

  If you think I'm another JS beginner who is reasking this question: I'm not. I'm attempting to answer it. :)

  And here it is: Hypnotic: Let JavaScript Sleep()! Please enjoy the demo and I won't spoil it here.

  In a few days I'll try to figure out how it could work together with emscripten, hopefully it can solve a few issues that have been worrying me (and many others) for a long time. 


  regards,
  - Lu Wang
 

[Soeren Balko]

What a fantastic approach! With that pattern, we could get rid of all sorts of clumsy hacks for calling asynchronous JS APIs from the (necessarily synchronous) emscripten-ed code. In fact, a generic sync-async bridge was doable with this.

Other than that, I could even imaging a "hibernate" feature for a running "instance" of emscripten-ed code where we could suspend the run at any time (without unwinding the stack), take a snapshot of the heap, call stack, etc. and put it into some local persistence.

[Alon Zakai]

Very interesting. This runs its own interpreter, if I understand it correctly? Would be very interesting to see the performance impact on emscripten code.

- Alon

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[王璐]

Yes it's basically Narcissus + streamline.js
It introduces huge overhead, so I figured it is not practical.


regards,
- Lu

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