:: Re: [DNG] Another Tentacle
Góra strony
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Autor: The Original Linux Fan
Data:  
Dla: dng
Temat: Re: [DNG] Another Tentacle
I created a little script to save the state of a game
that provides no more than rudimentary backups:
Gear Head Arena SDL.  Just run the script, and
then, every time the game is saved, the script does
a numbered backup and increments the backup
number.

I can think of many other uses of inotifywait.  Very
cool gizmo.

(Orig) Linuxfan

On 4/1/23 16:02, Steve Litt wrote:
> Ken Dibble said on Fri, 31 Mar 2023 20:15:29 -0400
>
> [snip]
>
>> From the man page:
>>
>> The /xscreensaver-systemd/ program is a helper daemon launched by
>> xscreensaver(1) <https://man.archlinux.org/man/xscreensaver.1.en> for
>> systemd(1) <https://man.archlinux.org/man/systemd.1.en> or elogind(8)
>> <https://man.archlinux.org/man/elogind.8.en> integration. It does two
>> things:
>>
>> ***
>>     When the system is about to go to sleep (e.g., the laptop lid has
>>     just been closed) it locks the screen just /before/ the system
>>     sleeps, by running /xscreensaver-command --suspend/. When the
>> system wakes up again, it runs /xscreensaver-command --deactivate/ to
>> make the unlock dialog appear immediately. It does this through the
>>     org.freedesktop.login1(5)
>>     <https://man.archlinux.org/man/org.freedesktop.login1.5.en> D-Bus
>>     interface.
> [snip]

>
>> My understanding of the documentation is that communication with
>> elogind should be through the
>>
>> D-Bus interface.
>>
>>
>> My questions, which I am sure that I will not be able to understand
>> the answer to, are
>>
>> Why do we have something that looks like it belongs to systemd running?
>>
>> Why do we need to have a separate daemon just to put something on the
>> DBus interface?
>>
>>
>> Confused as usual,
>>
>> Ken
> Hi Ken,
>
> I can't answer any of your questions, but I'm pretty sure you can sleep
> and wake with use of the inotify interface, assuming the waking
> interrupt runs some code to bring back state.
>
> Years ago I demonstrated, on this list, using inotifywait to mount and
> dismount thumb drives.
>
> SteveT
>
> Steve Litt
> Autumn 2022 featured book: Thriving in Tough Times
> http://www.troubleshooters.com/bookstore/thrive.htm
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