'\"macro stdmacro
.\"
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.\" Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
.\" 
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.TH PMCONVERTTIME 3 "PCP" "Performance Co-Pilot"
.SH NAME
\f3__pmConvertTime\f1 \- convert \fBtm\fR structure to \fBtimeval\fR structure
.SH "C SYNOPSIS"
.ft 3
#include "pmapi.h"
.br
#include "libpcp.h"
.sp
.ad l
.hy 0
.in +8n
.ti -8n
int __pmConvertTime(struct tm *\fItmin\fP, struct timeval *\fIorigin\fP, struct\ timeval\ *\fIrslt\fP);
.sp
.in
.hy
.ad
cc ... \-lpcp
.ft 1
.SH CAVEAT
This documentation is intended for internal Performance Co-Pilot
(PCP) developer use.
.PP
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.
.SH DESCRIPTION
.B __pmConvertTime
accepts a
.B tm
structure that has been filled in by
.BR __pmParseCtime (3)
and a reference time point
.BR origin ,
and fills in the given
.B rslt
structure with the time the user meant when he specified a partial
.B ctime
or positive or negative time
.BR interval .
.PP
Typically, the argument
.B origin
is the start time for a set of  PCP archive logs, unless the user specified
a negative
.B interval
offset, in which case it is the end
time of the log.
.PP
.B __pmConvertTime
returns 0 if successful.  
It returns \-1 and writes an error message to
.BR stderr ,
if an error is detected.
.PP
Use
.BR pmNewZone (3),
.BR pmNewContextZone (3)
or
.BR pmUseZone (3)
to establish a new current timezone that will effect
.BR __pmConvertTime .
.SH SEE ALSO
.BR PMAPI (3),
.BR pmNewContextZone (3),
.BR pmNewZone (3),
.BR pmParseInterval (3),
.BR pmParseTimeWindow (3),
.BR pmUseZone (3),
.BR __pmParseCtime (3)
and
.BR __pmParseTime (3).