Sleep Inhibitor

[Ourouk]

Context

I'm currently switching people from Discord/Jitsi Meet/MS Teams to mumble for obvious reasons. (it's better at being just an audio call client)

And simple features that seem to annoy them during long calls without interactions with the computer, is that the sleep of the computer isn't inhibited.

Description

The features inhibit computer sleep during calls and a toggle, because it's not for everyone, of course. This add-on would be cool.

Mumble component

Client

OS-specific?

No

Additional information

I did check quickly on the web how to implement that, but I don't have much spare time for it right now. Unfortunately, it seems to be OS specific, because qt doesn't provide any uniform system call for that feature.
Still, the feature could be useful on all platform.

[Krzmbrzl]

In theory this seems somewhat straight forward to do. We'd have to engage the non-sleep/non-screen-lock state when connecting to a server and disengage once the connection is closed again.

Relevant APIs seem to be

• Windows: https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setthreadexecutionstate
• macOS: https://developer.apple.com/library/archive/qa/qa1340/_index.html
• Linux with systemd: https://www.freedesktop.org/wiki/Software/systemd/inhibit/

See also:

• https://gist.github.com/Vineg/eca223fbf478a3c806444a13e538a9fc
• https://unix.stackexchange.com/a/643459

[jvbsl]

For linux we also have D-Bus:
org.freedesktop.PowerManagement.Inhibit
and/or
org.freedesktop.ScreenSaver.Inhibit

I think would kind of make a little more sense to use those dbus interfaces instead of only support systemd. Also afaik systemd itself provides this dbus interface as well. so we get systemd for free

[nixietab]

This woud be something great to implement and really usefull,
For what i see, QT has a built in cross-plataform api that woud be really easy to implement. ill look into it

---

About doing the actual implementation:
For what i see there is a Qt api call "setScreenSaverInhibited()" that by itself shoud be easy to implement, but this call appears after Qt ≥ 5.14

As i am not sure on how does mumble manage its Qt modules with certainty i will try to investigate

[Krzmbrzl]

For what i see there is a Qt api call "setScreenSaverInhibited()" that by itself shoud be easy to implement, but this call appears after Qt ≥ 5.14

No problem, on the master branch we're using Qt 6 anyway

[Hartmnt]

@nixietab

About doing the actual implementation:
For what i see there is a Qt api call "setScreenSaverInhibited()" that by itself shoud be easy to implement, but this call appears after Qt ≥ 5.14

Could you please share a link to that? I am unable to find this. Having a link to the documentation would greatly help when trying to implement this.

[nixietab]

@Hartmnt

Sorry about the confusion, this was a layer 8 error on my part. I misread another function. The function setScreenSaverInhibited() doesn’t actually exist. My apologies for informing this late.