1PMSEMSTR(3)                Library Functions Manual                PMSEMSTR(3)
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NAME

6       pmSemStr,  pmSemStr_r  -  convert  a performance metric semantic into a
7       string
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C SYNOPSIS

10       #include <pcp/pmapi.h>
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12       const char *pmSemStr(int sem);
13       char *pmSemStr_r(int sem, char *buf, int buflen);
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15       cc ... -lpcp
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DESCRIPTION

18       Given a performance metric semantic, pmSemStr produces  a  terse  ASCII
19       equivalent,  appropriate for use in error and diagnostic messages.  The
20       pmSemStr_r function does the same, but stores the result in a user-sup‐
21       plied  buffer buf of length buflen, which should have room for at least
22       20 bytes.
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24       The value for sem is typically extracted from a pmDesc structure,  fol‐
25       lowing a call to pmLookupDesc(3) for a particular performance metric.
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27       Examples are counter (for sem equals PM_SEM_COUNTER), discrete (for sem
28       equals PM_SEM_DISCRETE), instant (for sem equals PM_SEM_INSTANT), etc.
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NOTES

31       Both of these routines are safe to call from threaded applications.
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SEE ALSO

34       PMAPI(3),   pmAtomStr(3),   pmConvScale(3),   pmExtractValue(3),    pm‐
35       LookupDesc(3), pmPrintValue(3), pmIDStr(3), pmInDomStr(3), pmTypeStr(3)
36       and pmUnitsStr(3).
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40Performance Co-Pilot                  PCP                          PMSEMSTR(3)
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