pmwhichzone(3) [centos man page]

PMWHICHZONE(3)						     Library Functions Manual						    PMWHICHZONE(3)

NAME

       pmWhichZone - return current reporting timezone

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmWhichZone(char **tz);

       cc ... -lpcp

DESCRIPTION

       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

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

DIAGNOSTICS

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

Performance Co-Pilot							PCP							    PMWHICHZONE(3)

PMLOCALTIME(3)						     Library Functions Manual						    PMLOCALTIME(3)

NAME

       pmLocaltime - convert the date and time for a reporting timezone

C SYNOPSIS

       #include <time.h>
       #include <pcp/pmapi.h>

       struct tm *pmLocaltime(const time_t *clock, struct tm *result);

       cc ... -lpcp

DESCRIPTION

       pmLocaltime  is	very  similar  to localtime(3), except the timezone used is the current ``reporting timezone'' (rather than the default TZ
       environment variable scheme), and the result is returned into a caller-declared buffer (rather than a private buffer).

       Like localtime(3) the time to be converted is passed via clock, and the result contains the components broken out in the elements of the tm
       struct.

       pmLocaltime returns result as the value of the function.

       The default current reporting timezone is as defined by the TZ environment variable, so pmLocaltime and localtime(3) will initially produce
       a similar encoding of the date and time.

       Use pmNewZone(3), pmNewContextZone(3) or pmUseZone(3) to establish a new current reporting timezone that will affect  pmLocaltime  but  not
       localtime(3).

SEE ALSO

       localtime(3), PMAPI(3), pmCtime(3), pmGetConfig(3), pmNewContextZone(3), pmNewZone(3), pmUseZone(3), pcp.conf(5) and pcp.env(5).

Performance Co-Pilot							PCP							    PMLOCALTIME(3)