Kernel Functions for Drivers                     ddiinpanic(9F)



NAME
     ddiinpanic - determine if system is in panic state

SYNOPSIS
     #include 
     #include 



     int ddiinpanic(void);


INTERFACE LEVEL
     Solaris DI specific (Solaris DI).

DESCRIPTION
     Drivers controlling devices on which the system may write  a
     kernel  crash  dump  in  the  event  of  a  panic  can  call
     ddiinpanic() to determine if the system is panicking.


     When  the  system  is  panicking,  the  calls  of  functions
     scheduled  by  timeout(9F) and dditriggersoftintr(9F) will
     never occur. Neither can  delay(9F) be relied upon, since it
     is implemented via  timeout(9F).


     Drivers that need to enforce a time delay such as  SCSI  bus
     reset  delay  time must busy-wait when the system is panick-
     ing.

RETURN VALUES
     ddiinpanic() returns  1 if the system is in panic,  or   0
     otherwise.

CONTEXT
     ddiinpanic() may be called from any context.

SEE ALSO
     dump(9E), delay(9F), dditriggersoftintr(9F), timeout(9F)


     Writing Device Drivers












SunOS 5.11          Last change: 23 Jun 1997                    1