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processor_bind (2)
  • >> processor_bind (2) ( Solaris man: Системные вызовы )
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    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 process 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 project 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 effective 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 specified LWPs, the bindings of the LWPs for which it does have 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 processor 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 attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityCommitted

    MT-Level

     

    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)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    ATTRIBUTES
    SEE ALSO


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