pmtypestr(3) — Linux manual page


PMTYPESTR(3)            Library Functions Manual            PMTYPESTR(3)

NAME         top

       pmTypeStr, pmTypeStr_r - convert a performance metric type into a

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       const char *pmTypeStr(int type);
       char *pmTypeStr_r(int type, char *buf, int buflen);

       cc ... -lpcp

DESCRIPTION         top

       Given a performance metric type, pmTypeStr produces a terse ASCII
       equivalent, appropriate for use in error and diagnostic messages.
       The pmTypeStr_r function does the same, but stores the result in
       a user-supplied buffer buf of length buflen, which should have
       room for at least 20 bytes.

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

       Examples are 32 (for type equals PM_TYPE_32), U64 (for type
       equals PM_TYPE_U64), STRING (for type equals PM_TYPE_STRING),

NOTES         top

       Both of these functions are safe to call from threaded contexts.

SEE ALSO         top

       PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3),
       pmLookupDesc(3), pmPrintValue(3), pmIDStr(3), pmInDomStr(3),
       pmSemStr(3) and pmUnitsStr(3).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       project's upstream Git repository
       ⟨⟩ on 2024-06-14.
       (At that time, the date of the most recent commit that was found
       in the repository was 2024-06-14.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Performance Co-Pilot               PCP                      PMTYPESTR(3)

Pages that refer to this page: pmatomstr(3)pmconvscale(3)pmextractvalue(3)pmidstr(3)pmindomstr(3)pmlookupdesc(3)pmprintvalue(3)pmsemstr(3)pmunitsstr(3)pmwebapi(3)