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| author | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-09 14:15:08 +0200 |
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| committer | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-09 14:15:08 +0200 |
| commit | 96e72ec1fbadd13cbcbc2b263540e4f5e9e09d7c (patch) | |
| tree | 70686b943e33a6e939ad265acb7ddfef70b91f32 /man/man3/clock.3 | |
| parent | 8f4ed6463206e8ede815c72085c7305dafc2e4fc (diff) | |
| download | man-pages-96e72ec1fbadd13cbcbc2b263540e4f5e9e09d7c.tar.gz | |
Revert "src.mk, All pages: Move man* to man/"
This reverts commit 70ac1c4785fc1e158ab2349a962dba2526bf4fbc.
Link: <https://lore.kernel.org/linux-man/YxcV4h+Xn7cd6+q2@pevik/T/>
Reported-by: Petr Vorel <pvorel@suse.cz>
Reported-by: Jakub Wilk <jwilk@jwilk.net>
Cc: Stefan Puiu <stefan.puiu@gmail.com>
Signed-off-by: Alex Colomar <alx.manpages@gmail.com>
Diffstat (limited to 'man/man3/clock.3')
| -rw-r--r-- | man/man3/clock.3 | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/man/man3/clock.3 b/man/man3/clock.3 deleted file mode 100644 index 9fa92fff56..0000000000 --- a/man/man3/clock.3 +++ /dev/null @@ -1,100 +0,0 @@ -.\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de) -.\" -.\" SPDX-License-Identifier: Linux-man-pages-copyleft -.\" -.\" Modified Sat Jul 24 21:27:01 1993 by Rik Faith (faith@cs.unc.edu) -.\" Modified 14 Jun 2002, Michael Kerrisk <mtk.manpages@gmail.com> -.\" Added notes on differences from other UNIX systems with respect to -.\" waited-for children. -.TH CLOCK 3 2021-03-22 "Linux man-pages (unreleased)" -.SH NAME -clock \- determine processor time -.SH LIBRARY -Standard C library -.RI ( libc ", " \-lc ) -.SH SYNOPSIS -.nf -.B #include <time.h> -.PP -.B clock_t clock(void); -.fi -.SH DESCRIPTION -The -.BR clock () -function returns an approximation of processor time used by the program. -.SH RETURN VALUE -The value returned is the CPU time used so far as a -.IR clock_t ; -to get the number of seconds used, divide by -.BR CLOCKS_PER_SEC . -If the processor time used is not available or its value cannot -be represented, the function returns the value -.IR (clock_t)\ \-1 . -.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 clock () -T} Thread safety MT-Safe -.TE -.hy -.ad -.sp 1 -.SH STANDARDS -POSIX.1-2001, POSIX.1-2008, C89, C99. -XSI requires that -.B CLOCKS_PER_SEC -equals 1000000 independent -of the actual resolution. -.SH NOTES -The C standard allows for arbitrary values at the start of the program; -subtract the value returned from a call to -.BR clock () -at the start of the program to get maximum portability. -.PP -Note that the time can wrap around. -On a 32-bit system where -.B CLOCKS_PER_SEC -equals 1000000 this function will return the same -value approximately every 72 minutes. -.PP -On several other implementations, -the value returned by -.BR clock () -also includes the times of any children whose status has been -collected via -.BR wait (2) -(or another wait-type call). -Linux does not include the times of waited-for children in the -value returned by -.BR clock (). -.\" I have seen this behavior on Irix 6.3, and the OSF/1, HP/UX, and -.\" Solaris manual pages say that clock() also does this on those systems. -.\" POSIX.1-2001 doesn't explicitly allow this, nor is there an -.\" explicit prohibition. -- MTK -The -.BR times (2) -function, which explicitly returns (separate) information about the -caller and its children, may be preferable. -.PP -In glibc 2.17 and earlier, -.BR clock () -was implemented on top of -.BR times (2). -For improved accuracy, -since glibc 2.18, it is implemented on top of -.BR clock_gettime (2) -(using the -.B CLOCK_PROCESS_CPUTIME_ID -clock). -.SH SEE ALSO -.BR clock_gettime (2), -.BR getrusage (2), -.BR times (2) |