Kill awesome without restarting the framework

[aditya3098]

I would like to run the blackbox wm on DISPLAY:1, but bb does not have a --replace option. What should I do?

[knc1]

Originally Posted by aditya3098

I would like to run the blackbox wm on DISPLAY:1, but bb does not have a --replace option. What should I do?

Somewhere here, in the not too distant past, I recall reading a long list of the things that could be stopped (and how to do it).

The only detail I recall is (I think) that it was in a reply to one of twobob's threads on things graphic.

One of the "tricks of the trade" needed is that upstart is listening on DBus for termination events and is very stubborn about re-starting things you kill off.

[aditya3098]

Originally Posted by knc1

Somewhere here, in the not too distant past, I recall reading a long list of the things that could be stopped (and how to do it).

The only detail I recall is (I think) that it was in a reply to one of twobob's threads on things graphic.

One of the "tricks of the trade" needed is that upstart is listening on DBus for termination events and is very stubborn about re-starting things you kill off.

Thatd be about ~30+% of twobob's posts

[knc1]

Originally Posted by aditya3098

Thatd be about ~30+% of twobob's posts

Yes, not much help I understand.

But I waited almost two days for someone to come up with a better lead.

And since he is on a "Holiday from Kindles" - off dealing with "real life" issues - we can't ask him where the info is at here.

[hawhill]

awesome's Lua core API has a function "exec" which will do what it indicates - a call to exec(), thus replacing its process by another. I think upstart shouldn't get in the way here since the PID is still claimed by the new process, i.e. it seems to be still running.

As of how to make awesome execute this command - it has a DBus interface. I can't look right now if the Kindle ships the awesome-client binary which is a wrapper that will issue DBus calls to the running awesome instance. Otherwise, you would need to make up the DBus call yourself.

The awesome source code is a bit sprinkled over many files but still quite readable.

That said, I don't know if Amazon made some bigger modifications.

[geekmaster]

To prevent restarting, you can just pause and resume it like I did in the shell script in this post:
https://www.mobileread.com/forums/sho...71#post2081471
Excerpt:

killall -STOP Xorg cvm # pause framework
initvar # init global vars
sigcap # signature vector capture
killall -CONT cvm Xorg # resume framework

That stops the desktop from interfering with your app, but will not free up memory (which would require more advanced methods).

You can call the statements highlighted in red with C system() function calls (or equivalent for your choice of programming language).

Question: Does this method still work on the PW? It should, because it worked on the K5, and they both run version 5 firmware...

[aditya3098]

Originally Posted by geekmaster

To prevent restarting, you can just pause and resume it like I did in the shell script in this post:
https://www.mobileread.com/forums/sho...71#post2081471
Excerpt:

killall -STOP Xorg cvm # pause framework
initvar # init global vars
sigcap # signature vector capture
killall -CONT cvm Xorg # resume framework

That stops the desktop from interfering with your app, but will not free up memory (which would require more advanced methods).

You can call the statements highlighted in red with C system() function calls (or equivalent for your choice of programming language).

Question: Does this method still work on the PW? It should, because it worked on the K5, and they both run version 5 firmware...

Will try that