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| author | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-05 23:03:38 +0200 |
|---|---|---|
| committer | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-05 23:03:47 +0200 |
| commit | 70ac1c4785fc1e158ab2349a962dba2526bf4fbc (patch) | |
| tree | bff270e2496dd284bccfc1271b43946f5d225224 /man/man3/sched_getcpu.3 | |
| parent | 5423a6f86b2b920a5f3e8cf8d759b513050f2d33 (diff) | |
| download | man-pages-70ac1c4785fc1e158ab2349a962dba2526bf4fbc.tar.gz | |
src.mk, All pages: Move man* to man/
The root of the repository is becoming a bit overpopulated and
unorganized, due to the recent addition of more mandirs, and more
informative and configuration files too. Let's create a specific
mandir <man/> that contains the mandirs <man[1-8]*>.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Diffstat (limited to 'man/man3/sched_getcpu.3')
| -rw-r--r-- | man/man3/sched_getcpu.3 | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/man/man3/sched_getcpu.3 b/man/man3/sched_getcpu.3 new file mode 100644 index 0000000000..9e4fa906fc --- /dev/null +++ b/man/man3/sched_getcpu.3 @@ -0,0 +1,92 @@ +.\" Copyright (c) 2008, Linux Foundation, written by Michael Kerrisk +.\" <mtk.manpages@gmail.com> +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.TH SCHED_GETCPU 3 2021-03-22 "Linux man-pages (unreleased)" +.SH NAME +sched_getcpu \- determine CPU on which the calling thread is running +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <sched.h> +.PP +.B int sched_getcpu(void); +.fi +.PP +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.PP +.BR sched_getcpu (): +.nf + Since glibc 2.14: + _GNU_SOURCE + Before glibc 2.14: + _BSD_SOURCE || _SVID_SOURCE + /* _GNU_SOURCE also suffices */ +.fi +.SH DESCRIPTION +.BR sched_getcpu () +returns the number of the CPU +on which the calling thread is currently executing. +.SH RETURN VALUE +On success, +.BR sched_getcpu () +returns a nonnegative CPU number. +On error, \-1 is returned and +.I errno +is set to indicate the error. +.SH ERRORS +.TP +.B ENOSYS +This kernel does not implement +.BR getcpu (2). +.SH VERSIONS +This function is available since glibc 2.6. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.ad l +.nh +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.BR sched_getcpu () +T} Thread safety MT-Safe +.TE +.hy +.ad +.sp 1 +.SH STANDARDS +.BR sched_getcpu () +is glibc-specific. +.SH NOTES +The call +.PP +.in +4n +.EX +cpu = sched_getcpu(); +.EE +.in +.PP +is equivalent to the following +.BR getcpu (2) +call: +.PP +.in +4n +.EX +int c, s; +s = getcpu(&c, NULL, NULL); +cpu = (s == \-1) ? s : c; +.EE +.in +.SH SEE ALSO +.BR getcpu (2), +.BR sched (7) |