handle SIGFPE and allow the registered signal handler to do recovery
rather than bail
progs.h, pr_exec.c, pr_load.c:
if pr_faultchecks is 1 (0 is default), handle division by 0 gracefully
by loading the maximum representable number into the answer
Closes: #58
the rest:
kill the SIGFPE stuff
the SDL target files for Despair since he's working on the currently). Also
make progs segfault handling much more robust (and general: sigill etc too:)
little odd:
Received signal 11, exiting...
IN_Shutdown
IN_LL_Shutdown
VID_Shutdown
Segmentation fault (core dumped)
but the core file does accurately show the error
of pre-registered (Sys_RegisterShutdown) function before actually exiting
the program. This should take care of the pain when an ncurses server
crashes.
(Sys_DPrintf is new) is now used exclusively for all lib printing. Con_Init
sets the sys printf recirection to Con_Print (which has been revamped
appropriatly) and the server sets it to SV_Print (which was SV_Printf and
the new SV_Printf calls /it/). This should fix the rcon print redirection
issues.
Sys_Printf still has the format attribute. To redirect Sys_Printf, declare the
redrecting function as void (const char *, va_list) and call Sys_SetPrintf
with this function as its parameter.
way.. Sys_Printf is now Sys_StdPrintf for now. Sys_Printf is a function
pointer and will end up replacing Con_Printf as well. Names will change
to something intelligent when I'm done. Win32 is not yet touched, but I
haven't forgotten it.
The reason for this is the assumption that Con_Printf and Sys_Printf do
not overlap. The new server console WILL change that, requiring that we
change how we handle both functions. The plan: Default to using stubs
and swap them for full-featured functions on Console init which do all
the things we expect. Will also do a stderr version later.
