System Calls pset_info(2)
NAME
pset_info - get information about a processor set
SYNOPSIS
#include
int pset_info(psetid_t pset, int *type, uint_t *numcpus,
processorid_t *cpulist);
DESCRIPTION
The pset_info() function returns information on the proces-
sor set pset.If type is non-null, then on successful completion the type
of the processor set will be stored in the location pointed to by type. The only type supported for active processorsets is PS_PRIVATE.
If numcpus is non-null, then on successful completion the
number of processors in the processor set will be stored in the location pointed to by numcpus.If numcpus and cpulist are both non-null, then cpulist
points to a buffer where a list of processors assigned to the processor set is to be stored, and numcpus points to themaximum number of processor IDs the buffer can hold. On suc-
cessful completion, the list of processors up to the maximum buffer size is stored in the buffer pointed to by cpulist.If pset is PS_NONE, the list of processors not assigned to
any processor set will be stored in the buffer pointed to by cpulist, and the number of such processors will be stored in the location pointed to by numcpus. The location pointed toby type will be set to PS_NONE.
If pset is PS_MYID, the processor list and number of proces-
sors returned will be those of the processor set to whichthe caller is bound. If the caller is not bound to a proces-
sor set, the result will be equivalent to setting pset toPS_NONE.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is
returned and errno is set to indicate the error.SunOS 5.11 Last change: 28 Jun 2004 1
System Calls pset_info(2)
ERRORS
The pset_info() function will fail if:
EFAULT The location pointed to by type, numcpus, or cpu-
list was not null and not writable by the user. EINVAL An invalid processor set 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.ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | Async-Signal-Safe |
|_____________________________|_____________________________|
SEE ALSO
pooladm(1M), psrinfo(1M), psrset(1M), zoneadm(1M),processor_info(2), pset_assign(2), pset_bind(2),
pset_create(2), pset_destroy(2), pset_getloadavg(3C), attri-
butes(5) NOTESThe processor set of type PS_SYSTEM is no longer supported.
SunOS 5.11 Last change: 28 Jun 2004 2