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clock_getres.2: Note that CPU-time clocks are not settable. 

Explicitly note that CLOCK_PROCESS_CPUTIME_ID and
CLOCK_PROCESS_CPUTIME_ID are not settable.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2020-03-29 22:11:24 +02:00
parent a215069794
commit 71b7e2a5dc
1 changed files with 2 additions and 0 deletions
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man2/clock_getres.2
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@ -203,9 +203,11 @@ or similar.
.BR CLOCK_PROCESS_CPUTIME_ID " (since Linux 2.6.12)" .BR CLOCK_PROCESS_CPUTIME_ID " (since Linux 2.6.12)"
Per-process CPU-time clock Per-process CPU-time clock
(measures CPU time consumed by all threads in the process). (measures CPU time consumed by all threads in the process).
On Linux, this clock is not settable.
.TP .TP
.BR CLOCK_THREAD_CPUTIME_ID " (since Linux 2.6.12)" .BR CLOCK_THREAD_CPUTIME_ID " (since Linux 2.6.12)"
Thread-specific CPU-time clock. Thread-specific CPU-time clock.
On Linux, this clock is not settable.
.SH RETURN VALUE .SH RETURN VALUE
.BR clock_gettime (), .BR clock_gettime (),
.BR clock_settime (), .BR clock_settime (),