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NAME | C SYNOPSIS | DESCRIPTION | NOTES | SEE ALSO | COLOPHON |
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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 [email protected]. This page was obtained from the
project's upstream Git repository
⟨https://github.com/performancecopilot/pcp.git⟩ 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
[email protected]
Performance Co-Pilot PCP PMSEMSTR(3)
Pages that refer to this page: pmidstr(3), pmindomstr(3), pmtypestr(3), pmunitsstr(3), pmwebapi(3)
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HTML rendering created 2024-06-26 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. |
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