PMPRINTVALUE(3)

NAME
pmPrintValue - print a performance metric value

C SYNOPSIS
#include <stdio.h>
#include <pcp/pmapi.h>

void pmPrintValue(FILE *f, int valfmt, int type, const pmValue *val, int minwidth);

cc ... -lpcp

DESCRIPTION
The value of a single performance metric (as identified by val) is printed on the standard I/O stream identified by f.

The value of the performance metric is interpreted according to the format of val as defined by valfmt (from a within a structure; see pmFetch(3)) and the generic description of the metrics type passed in via type.

The value for type is typically extracted from a structure, following a call to pmLookupDesc(3) for a particular performance metric.

The output will be optionally padded to be at least minwidth characters wide.

pmPrintValue is most useful for displaying values of performance metrics from pmFetch(3) (which returns a set of valfmt and val pairs for each requested metric), based upon the metrics type as returned from pmLookupDesc(3).

SEE ALSO
PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmFetch(3), pmLookupDesc(3), pmTypeStr(3) and pmUnitsStr(3).