and set the spawn-schedpolicy attribute of a  spawn  attributes  object
       (ADVANCED REALTIME)

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

       int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *
              restrict attr, int *restrict schedpolicy);
       int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr,
              int schedpolicy);


DESCRIPTION
       The posix_spawnattr_getschedpolicy() function shall obtain the value of
       the spawn-schedpolicy attribute from the attributes  object  referenced
       by attr.

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

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

RETURN VALUE
       Upon  successful  completion,  posix_spawnattr_getschedpolicy()   shall
       return  zero  and store the value of the spawn-schedpolicy attribute of
       attr into the object referenced by the  schedpolicy  parameter;  other-
       wise, an error number shall be returned to indicate the error.

       Upon   successful  completion,  posix_spawnattr_setschedpolicy()  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_setschedpolicy() function may fail if:

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


       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       posix_spawnattr_getpgroup()   ,    posix_spawnattr_getschedparam()    ,
       posix_spawnattr_getsigmask()    ,   posix_spawnattr_setsigdefault()   ,
       posix_spawnattr_setflags() , posix_spawnattr_setpgroup() ,  posix_spaw-
       nattr_setschedparam() , 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 .