[LightDM] Building on XStreamOS/illumos

[Guido Berhoerster]

* Gabriele Bulfon <gabriele.bulfon at sonicle.com> [2014-03-28 16:48]:
> We have our own illumos kernel fork on github, with customizations.
> I may consider to change the delivered pam.conf to include my lightdm entries, once it works.
> The problem here, I think is not yet about pam. It's not even arrived at pam calls yet.
> LightDM just sits waiting for a SIGUSR1 from X never arriving....
> I compared the code from lxdm (currently working, even pam), and I found this in lxdm, just
> after spawing X:
> g_message("add xserver watch\n");
> for( i = 0; i
> {
> if(lxcom_last_sig==SIGINT || lxcom_last_sig==SIGTERM)
> break;
> if((s-dpy=xconn_open(display))!=NULL)
> break;
> g_usleep(50 * 1000);
> //g_message("retry %d\n",i);
> }
> looks like a loop to check for a signal different from SIGINT||SIGTERM, and trying to XOpenDisplay
> for some time, until it works or give up.
> Maybe this is a fallback for SIGUSR1 not coming in?

Yesh, that looks like an extremely ugly hack (as most of lxdm's
source code) avoiding the need to check for SIGUSR1 by looping
until a connection to the X server can be established.
-- 
Guido Berhoerster