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OpenSolaris 2009.06 - man page for processor_info (opensolaris section 2)

processor_info(2)						   System Calls 						 processor_info(2)

processor_info - determine type and status of a processor
#include <sys/types.h> #include <sys/processor.h> int processor_info(processorid_t processorid, processor_info_t *infop);
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.
Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.
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 proces- sor set. EFAULT The processor_info_t structure pointed to by infop was not writable by the user.
pooladm(1M), psradm(1M), psrinfo(1M), zoneadm(1M), p_online(2), sysconf(3C) SunOS 5.11 28 Jun 2004 processor_info(2)