Re: User interaction from multiple threads

[John Shahid]

Phil Sainty <address@hidden> writes:

> On 30/08/18 05:36, John Shahid wrote:
>> The child thread can request the main thread to display a prompt and
>> return the value that the user entered.
>
> The notion of user interaction all happening on the main thread was
> proposed earlier, and it was pointed out that it's very difficult to
> do that, because the user interaction may involve arbitrary data which
> is local to the originating thread.

I thought closures would solve such a problem by encapsulating the
context.  I imagine the main thread receiving forms from other threads
evaluating them and returning the results back to the thread which
becomes the value of the `(on-main-thread ...)`.  What did I miss ?