PMPRINTVALUE(3) Library Functions Manual PMPRINTVALUE(3)
pmPrintValue - print a performance metric value
#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).
PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmFetch(3), pmLookupDesc(3), pmTypeStr(3) and pmUnitsStr(3).
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Pages that refer to this page: pmprobe(1), pmapi(3), pmatomstr(3), pmconvscale(3), pmextractvalue(3), pmsemstr(3), pmtypestr(3), pmunitsstr(3)