sched_rr_get_interval man page


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.

sched_rr_get_interval — get execution time limits (REALTIME)


#include <sched.h>

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


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.


The sched_rr_get_interval() function shall fail if:

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

The following sections are informative.

See Also

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

The Base Definitions volume of POSIX.1‐2008, <sched.h>


2013 IEEE/The Open Group POSIX Programmer's Manual