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NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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PMCTIME(3) Library Functions Manual PMCTIME(3)
pmCtime - format the date and time for a reporting timezone
#include <time.h>
#include <pcp/pmapi.h>
char *pmCtime(const time_t *clock, char *buf);
cc ... -lpcp
pmCtime is very similar to ctime(3), except the timezone used is
the current ``reporting timezone'' (rather than the default TZ en‐
vironment variable scheme), and the result is returned into a
caller-declared buffer (rather than a private buffer).
Like ctime(3) the time to be converted is passed via clock, and
the result in buf is fixed width fields in the format:
Fri Sep 13 00:00:00 1986\n\0
The result buffer buf must be at least 26 bytes long, and no at‐
tempt is made to check this. pmCtime returns buf as the value of
the function.
The default current reporting timezone is as defined by the TZ en‐
vironment variable, so pmCtime and ctime(3) will initially produce
similar encoding of the date and time.
Use pmNewZone(3), pmNewContextZone(3) or pmUseZone(3) to establish
a new current reporting timezone that will effect pmCtime but not
ctime(3).
ctime(3), PMAPI(3), pmLocaltime(3), pmNewContextZone(3),
pmNewZone(3) and pmUseZone(3).
This page is part of the PCP (Performance Co-Pilot) project. In‐
formation about the project can be found at ⟨http://www.pcp.io/⟩.
If you have a bug report for this manual page, send it to
pcp@groups.io. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2025-08-11. (At that time, the date of the most recent commit
that was found in the repository was 2025-08-11.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a
mail to man-pages@man7.org
Performance Co-Pilot PCP PMCTIME(3)
Pages that refer to this page: pmlocaltime(3), __pmmktime(3), pmnewcontextzone(3), pmnewzone(3), pmusezone(3), pmwhichzone(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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