pmtypestr(3) — Linux manual page

PMTYPESTR(3)             Library Functions Manual            PMTYPESTR(3)

NAME         top

       pmTypeStr, pmTypeStr_r - convert a performance metric type into a
       string

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), etc.

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.  In‐
       formation about the project can be found at  ⟨http://www.pcp.io/⟩.
       If  you  have  a  bug  report  for  this  manual  page, send it to
       pcp@groups.io.  This page was obtained from the project's upstream
       Git repository ⟨https://github.com/performancecopilot/pcp.git⟩  on
       2025-08-11.   (At  that  time,  the date of the most recent commit
       that was found in the repository was 2025-08-11.)  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 man-pages@man7.org

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)

HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH.