pmderivederrstr(3) — Linux manual page

NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON

PMDERIVEDERRSTR(3)       Library Functions Manual      PMDERIVEDERRSTR(3)

NAME         top

       pmDerivedErrStr - return error message from failure to parse
       derived metric definition

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       char *pmDerivedErrStr(void);

       cc ... -lpcp

DESCRIPTION         top

       When  pmRegisterDerived(3)  is  called to add a new derived metric
       definition and an error occurs, pmDerivedErrStr may be  called  to
       return the associated error message.

       The pmRegisterDerivedMetric interface provides a convenience wrap‐
       per around both pmRegisterDerived and pmDerivedErrStr.

SEE ALSO         top

       PCPIntro(1), PMAPI(3) and pmRegisterDerived(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                                   PMDERIVEDERRSTR(3)

Pages that refer to this page: pmaddderived(3)pmregisterderived(3)