SCHED_RR_GET_INTERVAL(3P)

✨ SCHED_RR_GET_INTERVAL 💖

okay bestie, quick heads up before we dive in: this page is part of the POSIX Programmer's Manual. And like, the Linux implementation of this interface might be different from what POSIX says (so go check the matching Linux man page for the tea on Linux behavior), or the interface might not even be implemented on Linux at all. 🙈

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🌸 PROLOG 🌸

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ — so pls consult the corresponding Linux manual page for details on Linux behavior. Or, wild possibility, the interface may not be implemented on Linux at all. 💀

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🎀 NAME 🎀

sched_rr_get_interval — get execution time limits (REALTIME)

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✨ SYNOPSIS ✨

#include <sched.h>

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

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💅 DESCRIPTION 💅

So like, what this function does is: sched_rr_get_interval() shall update the timespec structure referenced by the interval argument so it contains the current execution time limit (that's the time quantum, bestie 🕰️) for the process specified by pid.

And if pid is zero? Then the current execution time limit for the calling process shall be returned instead. Not me getting my own info without even asking nicely. 👑

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🦋 RETURN VALUE 🦋

If it works out: sched_rr_get_interval() shall return zero. Slay.

Otherwise it shall return a value of -1 and set errno to indicate the error. Not slay. 😭

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🔥 ERRORS 🔥

sched_rr_get_interval() shall fail if:

• ESRCH — No process can be found corresponding to that specified by pid. (ghosted fr fr 👻)

The following sections are informative.

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🌈 EXAMPLES 🌈

None.

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🧚 APPLICATION USAGE 🧚

None.

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👑 RATIONALE 👑

None.

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⭐ FUTURE DIRECTIONS ⭐

None.

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💜 SEE ALSO 💜

• sched_getparam()
• sched_get_priority_max()
• sched_getscheduler()
• sched_setparam()
• sched_setscheduler()
• The Base Definitions volume of POSIX.1‐2017, <sched.h>

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🍓 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.

And listen — 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. No cap, the original wins. 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 .

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okay that's the whole page, mwah 🫶 this came to you from IEEE/The Open Group, 2017, and it's the SCHED_RR_GET_INTERVAL(3P) era of the POSIX Programmer's Manual. go get your time quantum, bestie, you deserve it 💖✨