Michael Albinus <michael.albinus@gmx.de> writes:

> "Basil L. Contovounesios" <contovob@tcd.ie> writes:
>
>> I attach a sample program test.el whose central function, test-slave,
>> invokes wget asynchronously before waiting for the process to exit.
>>
>> The issue I'm facing is that running test-slave twice in succession,
>> each time in a new thread, causes accept-process-output to hang with no
>> output (unless a timeout argument is given, in which case the function
>> returns nil) the second time around.
>
> If you want a process to communicate in a given thread, you must call
> `set-process-thread'. See the elisp manual.

Thanks, this is the first thing I tried when earlier experiments started
to hang.  I tried both the following redundant but explicit call: