pmmktime(3) [centos man page]

PMMKTIME(3)						     Library Functions Manual						       PMMKTIME(3)

NAME

       __pmMktime - convert a tm structure to a calendar time

C SYNOPSIS

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

       time_t *__pmMktime(struct tm *timeptr);

       cc ... -lpcp

DESCRIPTION

       __pmMktime  is  very similar to mktime(3), except the timezone used is the current ``reporting timezone'' (rather than the default TZ envi-
       ronment variable scheme).

       Like mktime(3) the time to be converted is passed via timeptr, and the function result contains the calendar time (the  number  of  seconds
       since 00:00:00 UTC, January 1, 1970).

       The  default  current  reporting  timezone is as defined by the TZ environment variable, so __pmMktime and mktime(3) will initially produce
       similar conversions.

       Use pmNewZone(3), pmNewContextZone(3) or pmUseZone(3) to establish a new current reporting timezone that will  effect  __pmMktime  but  not
       mktime(3).

SEE ALSO

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

Performance Co-Pilot							PCP							       PMMKTIME(3)

PMNEWCONTEXTZONE(3)					     Library Functions Manual					       PMNEWCONTEXTZONE(3)

NAME

       pmNewContextZone - establish a reporting timezone based on a PMAPI context

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmNewContextZone(void);

       cc ... -lpcp

DESCRIPTION

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

       If  the	current PMAPI context is an archive, pmNewContextZone uses the timezone from the archive label record to set the current reporting
       timezone.

       If the current PMAPI context corresponds to a host source of metrics, pmNewContextZone executes a pmFetch(3) to retrieve the value for  the
       metric pmcd.timezone and uses that to set the current reporting timezone.

       In  both cases, pmNewContextZone returns a value to identify the current reporting timezone that may be used in a subsequent call to pmUse-
       Zone(3) to restore this reporting timezone.

SEE ALSO

       PMAPI(3), pmCtime(3), pmFetch(3), pmGetConfig(3), pmLocaltime(3), pmNewContext(3), pmNewZone(3), pmUseZone(3), pmWhichZone(3), pcp.conf(5),
       pcp.env(5) and environ(5).

DIAGNOSTICS

       PM_ERR_NOCONTEXT
	      the current PMAPI context is not valid

       other  a return value less than zero indicates a fatal error from a system call, most likely malloc(3C)

Performance Co-Pilot							PCP						       PMNEWCONTEXTZONE(3)