PROCESSOR_INFO(2) System Calls PROCESSOR_INFO(2)

NAME

processor_info - determine type and status of a processor

SYNOPSIS

#include <sys/types.h>
#include <sys/processor.h>

int processor_info(processorid_t processorid, processor_info_t *infop);

DESCRIPTION

The processor_info() function returns the status of the processor
specified by processorid in the processor_info_t structure pointed to by
infop.


The structure processor_info_t contains the following members:

int pi_state;
char pi_processor_type[PI_TYPELEN];
char pi_fputypes[PI_FPUTYPE];
int pi_clock;


The pi_state member is the current state of the processor, either
P_ONLINE, P_OFFLINE, P_NOINTR, P_FAULTED, P_SPARE, or P_POWEROFF.


The pi_processor_type member is a null-terminated ASCII string specifying
the type of the processor.


The pi_fputypes member is a null-terminated ASCII string containing the
comma-separated types of floating-point units (FPUs) attached to the
processor. This string will be empty if no FPU is attached.


The pi_clock member is the processor clock frequency rounded to the
nearest megahertz. It may be 0 if not known.

RETURN VALUES

Upon successful completion, 0 is returned. Otherwise, -1 is returned and
errno is set to indicate the error.

ERRORS

The processor_info() function will fail if:

EINVAL
An non-existent processor ID was specified.

The caller is in a non-global zone, the pools facility is
active, and the processor is not a member of the zone's pool's
processor set.


EFAULT
The processor_info_t structure pointed to by infop was not
writable by the user.

SEE ALSO

p_online(2), sysconf(3C), pooladm(8), psradm(8), psrinfo(8), zoneadm(8)

June 28, 2004 PROCESSOR_INFO(2)