'\"macro stdmacro
.\"
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.TH PMTYPESTR 3 "PCP" "Performance Co-Pilot"
.SH NAME
\f3pmTypeStr\f1,
\f3pmTypeStr_r\f1 \- convert a performance metric type into a string
.SH "C SYNOPSIS"
.ft 3
#include <pcp/pmapi.h>
.sp
const char *pmTypeStr(int \fItype\fP);
.br
char *pmTypeStr_r(int \fItype\fP, char *\fIbuf\fP, int \fIbuflen\fP);
.sp
cc ... \-lpcp
.ft 1
.SH DESCRIPTION
.de CR
.ie t \f(CR\\$1\f1\\$2
.el \fI\\$1\f1\\$2
..
Given a performance metric
.IR type ,
.B pmTypeStr
produces a terse ASCII equivalent, appropriate for use in error and diagnostic
messages.
The
.B pmTypeStr_r
function does the same, but stores the result in a user-supplied buffer
.I buf
of length
.IR buflen ,
which should have room for at least 20 bytes.
.PP
The value for
.I type
is typically extracted from a
.CR pmDesc
structure, following a call to
.BR pmLookupDesc (3)
for a particular performance metric.
.PP
Examples are
.B 32
(for
.I type
equals
.BR PM_TYPE_32 ),
.B U64
(for
.I type
equals
.BR PM_TYPE_U64 ),
.B STRING
(for
.I type
equals
.BR PM_TYPE_STRING ),
etc.
.SH NOTES
Both of these functions are safe to call from threaded contexts.
.SH SEE ALSO
.BR PMAPI (3),
.BR pmAtomStr (3),
.BR pmConvScale (3),
.BR pmExtractValue (3),
.BR pmLookupDesc (3),
.BR pmPrintValue (3),
.BR pmIDStr (3),
.BR pmInDomStr (3),
.BR pmSemStr (3)
and
.BR pmUnitsStr (3).