SCHED_GET_PRIORITY_MAX(3P)                          POSIX Programmer's Manual                         SCHED_GET_PRIORITY_MAX(3P)



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

NAME
       sched_get_priority_max, sched_get_priority_min - get priority limits (REALTIME)

SYNOPSIS
       #include <sched.h>

       int sched_get_priority_max(int policy);
       int sched_get_priority_min(int policy);


DESCRIPTION
       The  sched_get_priority_max()  and  sched_get_priority_min()  functions  shall return the appropriate maximum or minimum,
       respectively, for the scheduling policy specified by policy.

       The value of policy shall be one of the scheduling policy values defined in <sched.h>.

RETURN VALUE
       If successful, the sched_get_priority_max() and sched_get_priority_min() functions shall return the  appropriate  maximum
       or minimum values, respectively. If unsuccessful, they shall return a value of -1 and set errno to indicate the error.

ERRORS
       The sched_get_priority_max() and sched_get_priority_min() functions shall fail if:

       EINVAL The value of the policy parameter does not represent a defined scheduling policy.


       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       sched_getparam(), sched_setparam(), sched_getscheduler(), sched_rr_get_interval(), sched_setscheduler(), the Base Defini-
       tions volume of IEEE Std 1003.1-2001, <sched.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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                    SCHED_GET_PRIORITY_MAX(3P)