NAME

       posix_spawnattr_getschedparam, posix_spawnattr_setschedparam - get and set the spawn-schedparam attribute
       of a spawn attributes object (ADVANCED REALTIME)

SYNOPSIS

       #include <spawn.h>
       #include <sched.h>

       int posix_spawnattr_getschedparam(const posix_spawnattr_t *
              restrict attr, struct sched_param *restrict schedparam);
       int posix_spawnattr_setschedparam(posix_spawnattr_t *restrict attr,
              const struct sched_param *restrict schedparam);

DESCRIPTION

       The  posix_spawnattr_getschedparam()  function  shall  obtain the value of the spawn-schedparam attribute
       from the attributes object referenced by attr.

       The posix_spawnattr_setschedparam() function shall set the spawn-schedparam attribute in  an  initialized
       attributes object referenced by attr.

       The  spawn-schedparam  attribute  represents  the scheduling parameters to be assigned to the new process
       image in a spawn operation (if POSIX_SPAWN_SETSCHEDULER or POSIX_SPAWN_SETSCHEDPARAM is set in the spawn-
       flags attribute). The default value of this attribute is unspecified.

RETURN VALUE

       Upon successful completion, posix_spawnattr_getschedparam() shall return zero and store the value of  the
       spawn-schedparam  attribute of attr into the object referenced by the schedparam parameter; otherwise, an
       error number shall be returned to indicate the error.

       Upon successful completion, posix_spawnattr_setschedparam() shall return zero; otherwise, an error number
       shall be returned to indicate the error.

ERRORS

       These functions may fail if:

       EINVAL The value specified by attr is invalid.

       The posix_spawnattr_setschedparam() function may fail if:

       EINVAL The value of the attribute being set is not valid.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       These functions are part of the Spawn and Process Scheduling options and need  not  be  provided  on  all
       implementations.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       posix_spawn()  ,  posix_spawnattr_destroy()  , posix_spawnattr_init() , posix_spawnattr_getsigdefault() ,
       posix_spawnattr_getflags()   ,   posix_spawnattr_getpgroup()   ,    posix_spawnattr_getschedpolicy()    ,
       posix_spawnattr_getsigmask()    ,    posix_spawnattr_setsigdefault()   ,   posix_spawnattr_setflags()   ,
       posix_spawnattr_setpgroup()   ,   posix_spawnattr_setschedpolicy()   ,   posix_spawnattr_setsigmask()   ,
       posix_spawnp() , the Base Definitions volume of IEEE Std 1003.1-2001, <sched.h>, <spawn.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc and The Open Group. In the event of any discrepancy between this version and the  original  IEEE  and
       The  Open  Group  Standard,  the  original  IEEE and The Open Group Standard is the referee document. The
       original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                                   2003                      POSIX_SPAWNATTR_GETSCHEDPARAM(P)