bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin

[Sean Whitton]

Hello,

On Fri 24 Jun 2022 at 09:53AM -07, Jim Porter wrote:

> On 6/23/2022 9:40 PM, Sean Whitton wrote:
>  > I'm a bit queasy about an unbounded loop here.  Why not just try three
>  > times?  Or, better, try twice, and a third time only if we're on a
>  > platform where we know it's needed.
>
> How about the attached patch? I didn't check for specific platforms to
> enable the "third EOF" behavior, since a) it's hard to say for sure
> which platforms might have this issue (especially since Cygwin will be
> fixing it), and b) this lets us avoid worrying about Tramp compatibility.

Avoiding the TRAMP issues makes sense, but could you explain why you
don't think there could be an issue with sending a process too many
EOFs?  It's not immediately obvious to me.

-- 
Sean Whitton