__pmParseTime - parse time point specification
int __pmParseTime(const char *string, struct timeval *logStart, struct
timeval *logEnd, struct timeval *rslt, char **errMsg)
cc ... -lpcp
__pmParseTime is designed to encapsulate the interpretation of a time
point specification in command line switches for use by the PCP client
This function expects to be called with the time point specification as
string. If the tool is running against PCP archive(s), you also need
to supply the start time of the first (only) archive as logStart, and
the end of the last (only) archive as logEnd. See pmGetArchiveLabel(3)
and pmGetArchiveEnd(3) for how to obtain values for these parameters.
If the tool is running against a live feed of performance data,
logStart should be the current time (but could be aligned on the next
second for example), while logEnd should have its tv_sec component set
The rslt structure must be allocated before calling __pmParseTime.
You also need to set the current PCP reporting time zone to correctly
reflect the -z and -Z command line parameters before calling
__pmParseTime. See pmUseZone(3) and friends for information on how
this is done.
If the conversion is successful, __pmParseTime returns 0, and fills in
rslt with the time value defined by the input parameters. If the
argument strings could not be parsed, it returns -1 and a dynamically
allocated error message string in errMsg. Be sure to free(3C) this
error message string.
PMAPI(3), pmGetArchiveEnd(3), pmGetArchiveLabel(3),
pmNewContextZone(3), pmNewZone(3), pmParseInterval(3),
pmParseTimeWindow(3), pmUseZone(3), __pmConvertTime(3) and