minix/lib/sysutil/panic.c
Ben Gras c79574aba4 A new panic that makes processes exit with PM knowing about it, instead
of sys_exit, so that PM functions (e.g. findproc) keep working properly,
and RS finds out about process deaths.
2005-10-17 13:19:22 +00:00

39 lines
1.1 KiB
C

#include <stdlib.h>
#include "sysutil.h"
/*===========================================================================*
* panic *
*===========================================================================*/
PUBLIC void panic(who, mess, num)
char *who; /* server identification */
char *mess; /* message format string */
int num; /* number to go with format string */
{
/* Something awful has happened. Panics are caused when an internal
* inconsistency is detected, e.g., a programming error or illegal
* value of a defined constant.
*/
message m;
void (*suicide)(void);
if (NULL != who && NULL != mess) {
if (num != NO_NUM) {
printf("Panic in %s: %s: %d\n", who, mess, num);
} else {
printf("Panic in %s: %s\n", who, mess);
}
}
/* Exit nicely through PM. */
exit(1);
/* If exiting nicely through PM fails for some reason, try to
* commit suicide. E.g., message to PM might fail due to deadlock.
*/
suicide = (void (*)(void)) -1;
suicide();
/* If committing suicide fails for some reason, hang. */
for(;;) { }
}