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

       None.

       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                         SCHED_RR_GET_INTERVAL(3POSIX)

       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.

       The sched_rr_get_interval() function shall fail if:

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

       Thefollowingsectionsareinformative.

       None.

       None.

       sched_rr_get_interval — get execution time limits (REALTIME)

       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.

       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.

sched_getparam(), sched_get_priority_max(), sched_getscheduler(), sched_setparam(), sched_setscheduler()

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

       #include <sched.h>

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