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System Calls processor_bind(2)
NAME
processor_bind - bind LWPs to a processor
SYNOPSIS
#include <sys/types.h>
#include <sys/processor.h>
#include <sys/procset.h>
int processor_bind(idtype_t idtype, id_t id, processorid_t
processorid, processorid_t *obind);
DESCRIPTION
The processor_bind() function binds the LWP (lightweight
process) or set of LWPs specified by idtype and id to the
processor specified by processorid. If obind is not NULL,
this function also sets the processorid_t variable pointed
to by obind to the previous binding of one of the specified
LWPs, or to PBIND_NONE if the selected LWP was not bound.
If idtype is P_PID, the binding affects all LWPs of the pro-
cess with process ID (PID) id.
If idtype is P_LWPID, the binding affects the LWP of the
current process with LWP ID id.
If idtype is P_TASKID, the binding affects all LWPs of all
processes with task ID id.
If idtype is P_PROJID, the binding affects all LWPs of all
processes with project ID id.
If idtype is P_CTID, the binding affects all LWPs of all
processes with process contract ID id.
If idtype is P_ZONEID, the binding affects all LWPs of all
processes with zone ID id.
If id is P_MYID, the specified LWP, process, task, or pro-
cess is the current one.
If processorid is PBIND_NONE, the processor bindings of the
specified LWPs are cleared.
If processorid is PBIND_QUERY, the processor bindings are
not changed.
The {PRIV_PROC_OWNER} privilege must be asserted in the
effective set of the calling process or the real or effec-
tive user ID of the calling process must match the real or
effective user ID of the LWPs being bound. If the calling
process does not have permission to change all of the speci-
fied LWPs, the bindings of the LWPs for which it does have
SunOS 5.10 Last change: 19 Sep 2004 1
System Calls processor_bind(2)
permission will be changed even though an error is returned.
Processor bindings are inherited across fork(2) and exec(2).
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is
returned and errno is set to indicate the error.
ERRORS
The processor_bind() function will fail if:
EFAULT The location pointed to by obind was not
NULL and not writable by the user.
EINVAL The specified processor is not on-line, or
the idtype argument was not P_PID, P_LWPID,
P_PROJID, P_TASKID, P_CTID, or P_ZONEID.
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.
EPERM The {PRIV_PROC_OWNER} privilege is not
asserted in the effective set of the calling
process and its real or effective user ID
does not match the real or effective user ID
of one of the LWPs being bound.
ESRCH No processes, LWPs, or tasks were found to
match the criteria specified by idtype and
id.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
SunOS 5.10 Last change: 19 Sep 2004 2
System Calls processor_bind(2)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Stable |
|_____________________________|_____________________________|
| MT-Level | Async-Signal-Safe |
|_____________________________|_____________________________|
SEE ALSO
pooladm(1M), psradm(1M), psrinfo(1M), zoneadm(1M), exec(2),
fork(2), p_online(2), pset_bind(2), sysconf(3C), process(4),
project(4), attributes(5), privileges(5)
SunOS 5.10 Last change: 19 Sep 2004 3
Man(1) output converted with
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This page was generated on Wed Sep 12 11:27:04 GMT 2007
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