This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface

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

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for  Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 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 .

       Any typographical or formatting errors that appear in this page are most likely to have  been  introduced
       during   the   conversion  of  the  source  files  to  man  page  format.  To  report  such  errors,  see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                                   2017                POSIX_SPAWNATTR_GETSCHEDPOLICY(3POSIX)

       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.

       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.

       Thefollowingsectionsareinformative.

       None.

       None.

       posix_spawnattr_getschedpolicy,  posix_spawnattr_setschedpolicy  —  get  and  set  the  spawn-schedpolicy
       attribute of a spawn attributes object (ADVANCEDREALTIME)

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of this interface
       may differ (consult the corresponding Linux manual page for details of Linux behavior), or the  interface
       may not be implemented on Linux.

       None.

       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;  otherwise,
       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.

posix_spawn(), posix_spawnattr_destroy(), posix_spawnattr_getsigdefault(), posix_spawnattr_getflags(),
       posix_spawnattr_getpgroup(), posix_spawnattr_getschedparam(), posix_spawnattr_getsigmask()

       The Base Definitions volume of POSIX.1‐2017, <sched.h>, <spawn.h>

       #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);