[Interest] Detecting if the application is already running from another user account

Etienne Sandré-Chardonnal etienne.sandre at m4x.org
Fri Jun 3 14:54:13 CEST 2016


But how can I test if another app is already running with QSystemSemaphore?
I can set a semaphore with a single ressource (initial value = 1) and lock
it, but there is a single method aquire() which blocks forever if the value
is 0. So I can just make the second process freeze forever until the first
one exits.

2016-06-03 12:54 GMT+02:00 Nye <kshegunov at gmail.com>:

> Hello,
> Have you tried a system semaphore? It should work in this case as far as I
> know.
>
>
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