NAME | C SYNOPSIS | DESCRIPTION | NOTES | SEE ALSO | COLOPHON
PMSEMSTR(3) Library Functions Manual PMSEMSTR(3)
pmSemStr, pmSemStr_r - convert a performance metric semantic into a string
#include <pcp/pmapi.h> const char *pmSemStr(int sem); char *pmSemStr_r(int sem, char *buf, int buflen); cc ... -lpcp
Given a performance metric semantic, pmSemStr produces a terse ASCII equivalent, appropriate for use in error and diagnostic messages. The pmSemStr_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 sem is typically extracted from a pmDesc structure, following a call to pmLookupDesc(3) for a particular performance metric. Examples are counter (for sem equals PM_SEM_COUNTER), discrete (for sem equals PM_SEM_DISCRETE), instant (for sem equals PM_SEM_INSTANT), etc.
Both of these routines are safe to call from threaded applications.
PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmLookupDesc(3), pmPrintValue(3), pmIDStr(3), pmInDomStr(3), pmTypeStr(3) and pmUnitsStr(3).
This page is part of the PCP (Performance Co-Pilot) project. Information about the project can be found at ⟨http://www.pcp.io/⟩. If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on 2022-12-17. (At that time, the date of the most recent commit that was found in the repository was 2022-12-16.) 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 email@example.com Performance Co-Pilot PCP PMSEMSTR(3)
Pages that refer to this page: pmidstr(3), pmindomstr(3), pmtypestr(3), pmunitsstr(3), pmwebapi(3)