NAME

       __pmtimevalConvert, __pmtimespecConvert - convert tm structure into seconds

C SYNOPSIS

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

       int __pmtimevalConvert(struct tm *tmin, struct timeval *origin, struct timeval *rslt);
       int __pmtimespecConvert(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

       __pmtimevalConvert and __pmtimespecConvert accept a tm structure that has been filled in  by  __pmParseC‐
       time(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.

       __pmtimevalConvert  and  __pmtimespecConvert  return  0 if successful.  They return -1 and write an error
       message to stderr, if an error is detected.

       Use pmNewZone(3), pmNewContextZone(3) or pmUseZone(3) to establish a new current timezone that  will  ef‐
       fect __pmtimevalConvert.

SEE ALSO

       PMAPI(3),  __pmParseCtime(3), __pmtimevalParse(3), pmNewContextZone(3), pmNewZone(3), pmParseInterval(3),
       pmParseTimeWindow(3) and pmUseZone(3).

Performance Co-Pilot                                   PCP                                      PMCONVERTTIME(3)