1pset_info(2)                     System Calls                     pset_info(2)
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NAME

6       pset_info - get information about a processor set
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SYNOPSIS

9       #include <sys/pset.h>
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11       int pset_info(psetid_t pset, int *type, uint_t *numcpus,
12            processorid_t *cpulist);
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DESCRIPTION

16       The pset_info() function returns information on the processor set pset.
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19       If type is non-null, then on successful completion the type of the pro‐
20       cessor set will be stored in the location pointed to by type. The  only
21       type supported for active processor sets is PS_PRIVATE.
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24       If  numcpus  is  non-null,  then on successful completion the number of
25       processors in the processor set will be stored in the location  pointed
26       to by numcpus.
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29       If numcpus and cpulist are both non-null, then cpulist points to a buf‐
30       fer where a list of processors assigned to the processor set is  to  be
31       stored,  and  numcpus points to the maximum number of processor IDs the
32       buffer can hold. On successful completion, the list of processors up to
33       the maximum buffer size is stored in the buffer pointed to by cpulist.
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36       If  pset is PS_NONE, the list of processors not assigned to any proces‐
37       sor set will be stored in the buffer pointed to  by  cpulist,  and  the
38       number  of such processors will be stored in the location pointed to by
39       numcpus. The location pointed to by type will be set to PS_NONE.
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42       If pset is  PS_MYID,  the  processor  list  and  number  of  processors
43       returned  will  be  those  of  the processor set to which the caller is
44       bound. If the caller is not bound to a processor set, the  result  will
45       be equivalent to setting pset to PS_NONE.
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RETURN VALUES

48       Upon  successful  completion,  0 is returned. Otherwise, −1 is returned
49       and errno is set to indicate the error.
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ERRORS

52       The pset_info() function will fail if:
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54       EFAULT    The location pointed to by type, numcpus, or cpulist was  not
55                 null and not writable by the user.
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58       EINVAL    An invalid processor set ID was specified.
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60                 The  caller  is  in  a non-global zone, the pools facility is
61                 active, and the processor is  not  a  member  of  the  zone's
62                 pool's processor set.
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ATTRIBUTES

66       See attributes(5) for descriptions of the following attributes:
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71       ┌─────────────────────────────┬─────────────────────────────┐
72       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
73       ├─────────────────────────────┼─────────────────────────────┤
74       │Interface Stability          │Stable                       │
75       ├─────────────────────────────┼─────────────────────────────┤
76       │MT-Level                     │Async-Signal-Safe            │
77       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

80       pooladm(1M),  psrinfo(1M),  psrset(1M), zoneadm(1M), processor_info(2),
81       pset_assign(2),    pset_bind(2),    pset_create(2),    pset_destroy(2),
82       pset_getloadavg(3C), attributes(5)
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NOTES

85       The processor set of type PS_SYSTEM is no longer supported.
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89SunOS 5.11                        28 Jun 2004                     pset_info(2)
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