From kde-devel  Fri Dec 01 14:49:16 2023
From: Thiago Macieira <thiago () kde ! org>
Date: Fri, 01 Dec 2023 14:49:16 +0000
To: kde-devel
Subject: Re: Deprecation of QSharedMemory and QSystemSemaphore
Message-Id: <2712867.mvXUDI8C0e () tjmaciei-mobl5>
X-MARC-Message: https://marc.info/?l=kde-devel&m=170144221130785

On Friday, 1 December 2023 14:01:14 CET Kai Uwe Broulik wrote:
> QSystemSemaphore:
> * Solid optical disc handling
> * Digikam server starter
>=20
> QSharedMemory:
> * Marble
> * KMemFile used by KSycoca
> * Solid again
> * Snorenotify
> * Amarok
> * Kdenlive
>=20
> At a glance it looks like some (e.g. Solid) can probably use QLockFile
> or are Linux-specific and can use memfd
>=20
> Qt folks are aware of QtSingleApplication but we couldn=E2=80=99t really =
speak
> of the other use cases, in particular KSycoca.

KSycoca is supposed to be real sharing of memory.

=46or the other ones, the question is what they're using QSharedMemory for =
(how=20
many processes, what's the ownership model).

=2D-=20
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
   Software Architect - Intel DCAI Cloud Engineering