Around 15 o'clock on Nov 3, Michel =?ISO-8859-1?Q?D=E4nzer?= wrote: > Oh, and are there any opinions about the signal to use, SIGALRM or > something else?
You'll have to make it settable -- SIGALRM is already used by the X server for scheduling. Of course, we could eliminate that if I could get the current time of day mapped into the X server address space :-) > > * The interface needs to provide a vblank counter, so the user can easily > > detect dropped vblanks. > > Has been there from day 1. I wonder what to do about this for the signal > though, put the sequence number into the siginfo (is that possible?), or > is the information you get back from the ioctl enough? It would be nice to get it without another syscall; there's certainly enough space in the siginfo to pass it along. I assume you'd pass along the current counter value and not some kind of delta. Keith Packard XFree86 Core Team HP Cambridge Research Lab _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert