распечатать значение показателя производительности (print a performance metric value)
Имя (Name)
pmPrintValue - print a performance metric value
Синопсис C (C Synopsis)
#include <stdio.h>
#include <pcp/pmapi.h>
void pmPrintValue(FILE *f, int valfmt, int type,
const pmValue *val, int minwidth);
cc ... -lpcp
Описание (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 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).
Смотри также (See also)
PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3),
pmFetch(3), pmLookupDesc(3), pmTypeStr(3) and pmUnitsStr(3).
