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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
pcp@groups.io. This page was obtained from the project's upstream
Git repository ⟨https://github.com/performancecopilot/pcp.git⟩ on
2020-08-13. (At that time, the date of the most recent commit that
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(which is not part of the original manual page), send a mail to
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Performance Co-Pilot PCP PMSEMSTR(3)