SCHED_RR_GET_INTERVAL(3P)                           POSIX Programmer's Manual                          SCHED_RR_GET_INTERVAL(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_rr_get_interval - get execution time limits (REALTIME)

SYNOPSIS
       #include <sched.h>

       int sched_rr_get_interval(pid_t pid, struct timespec *interval);


DESCRIPTION
       The  sched_rr_get_interval()  function shall update the timespec structure referenced by the interval argument to contain
       the current execution time limit (that is, time quantum) for the process specified by pid. If pid is  zero,  the  current
       execution time limit for the calling process shall be returned.

RETURN VALUE
       If  successful,  the sched_rr_get_interval() function shall return zero. Otherwise, it shall return a value of -1 and set
       errno to indicate the error.

ERRORS
       The sched_rr_get_interval() function shall fail if:

       ESRCH  No process can be found corresponding to that specified by pid.


       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       sched_getparam(), sched_get_priority_max(), sched_getscheduler(), sched_setparam(), sched_setscheduler(), the Base  Defi-
       nitions 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_RR_GET_INTERVAL(3P)