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 (consult 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 Definitions volume of POSIX.1-2017, <sched.h>

COPYRIGHT
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 .