I'm not very familiar with AppKit programming, but can't you just call [NSApplication-run] yourself in a while loop? You'd probably have to do all the setup that NSApplicationMain() does before and after calling it, but if it works the way I think it should, you wouldn't need a wrapper binary.
Just an idea. Stef On Wed, May 22, 2013 at 7:40 AM, Sebastian Reitenbach < [email protected]> wrote: > > On Wednesday, May 22, 2013 11:55 CEST, "Dr. H. Nikolaus Schaller" < > [email protected]> wrote: > > > > > Am 22.05.2013 um 11:34 schrieb Sebastian Reitenbach: > > > > > Hi, > > > > > > working with Riccardo on GAPs loginpanel, made some progress, but ran > into trouble now. > > > > > > What I do is starting the X Server, before I then start the loginpanel > application. > > > Then the loginpanel actually has an X server running, where it can > connect to. > > > > > > So far, that works well. I can login. When I logout, then I am killing > the X server, and > > > want to restart it, and spawn the loginpanel again. > > > > > > First I tried in loginpanels main function: > > > > > > while (1) > > > { > > > [XManager startXServer]; > > > putenv("DISPLAY=:0.0"); > > > > > > NSApplicationMain(argc, argv); > > > > > > } > > > > > > > > > That probably was too naive from me thinking it might work ;) Reading > up NSApplication > > > documentation, I see that everything after NSApplicationMain(argc, > argv); will not be > > > exectuted, so the while loop will only runs once :( > > > > > > Anyways, then I tried to start the XServer again, after I teared it > down. > > > That works so far, but when the loginpanel wants to reset its window > on the X server, > > > I see it crying on the console, that the connection to the XServer > broke: > > > > > > X connection to :0.0 broken (explicit kill or server shutdown) > > > > > > Even if there is a new server spawned already on the same display. > > > > > > Is there a way to tell the application that the X Server disappeared, > and it > > > should reconnect to the new one? Or tell it to kind of respawn itself? > > > > I think what you are looking for should be done in the startx or xinit > scripts of > > your system. They are usually responsible for restarting X servers. Also > > initd and its run-levels play some role. > > > > So the loginpanel should also be restarted by the same mechanism. > > I.e. you could try to make it sort of a display and/or window manager. > > I thought more the lines of XDM, when the X server it spawns gets killed, > its restarting it, showing the login greeter again. > > I looked at Login.app from mGSTEP as an example: > http://www.illumenos.com/os/mgstep/projects.html > > I could write an init script , that runs the while (1) loop, and restarts > every time. Otherwise, I could potentially just write a wrapper binary, > which > execve() the application in a while loop. > > > Sebastian > > > > > Nikolaus > > > > > > _______________________________________________ > Discuss-gnustep mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnustep >
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