posix_spawnattr_getschedparam man page on Archlinux

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POSIX_SPAWNATTR_GETSCHEDPARPOSIX)Programmer'sPOSIX_SPAWNATTR_GETSCHEDPARAM(3P)

PROLOG
       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.

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-sched‐
       param 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 unspeci‐
       fied.

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_getsigde‐
       fault(), posix_spawnattr_getflags(), posix_spawnattr_getpgroup(),
       posix_spawnattr_getschedpolicy(), posix_spawnattr_getsigmask()

       The Base Definitions volume of POSIX.1‐2008, <sched.h>, <spawn.h>

COPYRIGHT
       Portions	 of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       --  Portable  Operating	System	Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal  and	 Electronics  Engineers,  Inc  and  The	 Open Group.  (This is
       POSIX.1-2008 with the 2013 Technical Corrigendum	 1  applied.)  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.unix.org/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.ker‐
       nel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2013    POSIX_SPAWNATTR_GETSCHEDPARAM(3P)
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