PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

POSIX_SPAWNATTR_GETSCHEDPOLICY(3P)ogrammer'sSManualWNATTR_GETSCHEDPOLICY(3P)

PROLOG         top

       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         top

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

SYNOPSIS         top

       #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         top

       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         top

       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.

ERRORS         top

       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         top

       None.

APPLICATION USAGE         top

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

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       posix_spawn(3p), posix_spawnattr_destroy(3p),
       posix_spawnattr_getsigdefault(3p), posix_spawnattr_getflags(3p),
       posix_spawnattr_getpgroup(3p), posix_spawnattr_getschedparam(3p),
       posix_spawnattr_getsigmask(3p)

       The Base Definitions volume of POSIX.1‐2008, sched.h(0p), spawn.h(0p)

COPYRIGHT         top

       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 Electrical 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.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group                 2013  POSIX_SPAWNATTR_GETSCHEDPOLICY(3P)