pmPrintValue man page

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


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 pmValueSet within a pmResult 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 pmDesc 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).

Referenced By

PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmprobe(1), pmSemStr(3), pmTypeStr(3), pmUnitsStr(3).

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