pmWhichZone(3) — Linux manual page


PMWHICHZONE(3)            Library Functions Manual            PMWHICHZONE(3)

NAME         top

       pmWhichZone - return current reporting timezone

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       int pmWhichZone(char **tz);

       cc ... -lpcp

DESCRIPTION         top

       The current reporting timezone effects the timezone used by
       pmCtime(3) and pmLocaltime(3).

       pmWhichZone returns the handle of the current timezone, as previously
       established by a call to pmNewZone(3) or pmNewContextZone(3).  If the
       call is successful (i.e. there exists a current reporting timezone)
       then a non-negative integer is returned and tz is set to point to a
       static buffer containing the timezone string itself.

SEE ALSO         top

       PMAPI(3), pmCtime(3), pmLocaltime(3), pmNewContextZone(3),
       pmNewZone(3) and pmUseZone(3).

DIAGNOSTICS         top

       A return value less than zero indicates there is no current reporting

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at ⟨⟩.
       If you have a bug report for this manual page, send it to  This page was obtained from the project's upstream
       Git repository ⟨⟩ on
       2020-08-13.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-08-11.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
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       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Performance Co-Pilot                 PCP                      PMWHICHZONE(3)

Pages that refer to this page: pmnewcontextzone(3)pmNewContextZone(3)pmnewzone(3)pmNewZone(3)pmusezone(3)pmUseZone(3)