Usecase where pkill actually doesn't kill the process

[maybites]

Hi Jeremy

I have here a usecase that gives me some headakes on windows:

I am using your [shell] object to start and stop ultragrid processes (download). This works like a charm...

this example captures a spout stream and displays it inside a window.

<pre><code>
----------begin_max5_patcher----------
480.3ocqTtzaaCCC.9rCP9OHnSc.1IwN1oI4z.Fv10domVKBTr4bUmhjgdj5
hh8ee5gciwV7PWaNQKRwGejz5koShv6EsfBi1h9NJJ5EqlHuNmlndEQ3Cj1R
FQ4uH9.nTjZ.G2YTCsZug6veY67ajhZI4.5qTFnleKSKIeSRqN8URofqobiv
nRdhxWkO2bbFzB2gQIZjpQXznjJTMaq+6WSC2bvdjAZeUj1qNnS+bCDn.iQ2
2aiV4qKw9GS1LLNTdeXx501PzkOP406jPoNDozkYyVDiRWj6D44qchLqNz8d
m90zINoUD+w6cM+jxXWHVW++yZQ9.Ty1Lq3CSJGdxVKmATIkO1PcwYfo37vj
9uFbWW3vX4xTuH6BL2FiF0C.ig9rRWAR4HTkM93KFg2S30meLl8tIOakm4q2
bh7dmTjiP0Na3s9rin0R5diN7BPzI3iBf4KkqpfePLL8mvAacsuAswPzwLJ+
udJwWiNC+QyUILxx91PGrnAkYEnruQPzTAevkJBWZ7o3aNcqeKoK6hktMu+z
00bIMMGAopyiPlrqnOJjtyqiCmo7v4kgyR3Hs2kvVHlHs6LZ6v2H8EHtcUNt
yagcIlan9kLqFGqtT6+KfSrOc0PBT4+aY5D6E9cXt81I
-----------end_max5_patcher-----------
</code></pre>

(to make it work you need to download spout and start the DEMO/SpoutSender before you execute ultragrid)

.. except when I send the message 'pkill' it doesn't stop the process. It keeps on running in the background. I need to go into the taskmanager to kill it.

My way to handle this is to make first a copy of the uv.exe (to uv_1.exe) and when I want to kill it I search for the PID with the associated exe file ('tasklist /NH /FI imagename eq uv_1.exe') and kill it via (taskkill /PID xxx). This is cumbersome in many ways but kind of works. But I am very unhappy because it is not 100% reliable and the folder, in which uv.exe lies needs to have write access for the current user, which is not guaranteed either.

So I tried to compile the shell script myself to see if I can fix this - for example to get the dwProcessId directly from the shell script so can kill it via TASKKILL /PID xxx.

But I wasn't able to build because of missing libraries. And I didn't find any build instructions on your repo.

Maybe you can get me started here? Or have an idea why this process takes a live of its own in the background?

cheers

martin