__pmconverttime(3) — Linux manual page

PMCONVERTTIME(3)        Library Functions Manual        PMCONVERTTIME(3)

NAME

       __pmConvertTime, __pmConvertHighResTime - convert tm structure
       into seconds

C SYNOPSIS

       #include "pmapi.h"
       #include "libpcp.h"

       int __pmConvertTime(struct tm *tmin, struct timeval *origin,
               struct timeval *rslt);
       int __pmConvertHighResTime(struct tm *tmin, struct timespec
               *origin, struct timespec *rslt);

       cc ... -lpcp

CAVEAT

       This  documentation is intended for internal Performance Co-Pilot
       (PCP) developer use.

       These interfaces are not part of the PCP APIs that are guaranteed
       to remain fixed across releases, and they may not  work,  or  may
       provide different semantics at some point in the future.

DESCRIPTION

       __pmConvertTime  and __pmConvertHighResTime accept a tm structure
       that has been filled in by __pmParseCtime(3) and a reference time
       point origin, and fills in the given rslt structure with the time
       the user meant when specifying a partial  ctime  or  positive  or
       negative time interval.

       Typically, the argument origin is the start time for a set of PCP
       archives,  unless  the user specified a negative interval offset,
       in which case it is the end time of the archive.

       __pmConvertTime and __pmConvertHighResTime return 0  if  success‐
       ful.   They return -1 and write an error message to stderr, if an
       error is detected.

       Use pmNewZone(3), pmNewContextZone(3) or pmUseZone(3)  to  estab‐
       lish a new current timezone that will effect __pmConvertTime.

SEE ALSO

       PMAPI(3),  pmNewContextZone(3), pmNewZone(3), pmParseInterval(3),
       pmParseTimeWindow(3), pmUseZone(3), __pmParseCtime(3)  and  __pm‐
       ParseTime(3).

COLOPHON

       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   2024-06-14.
       (At  that time, the date of the most recent commit that was found
       in the repository was 2024-06-14.)  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                  PMCONVERTTIME(3)

Pages that refer to this page: __pmparsectime(3), __pmparsetime(3)

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