PMSEMSTR - Online Linux Manual PageSection : 3
Updated : PCP
Source : Performance Co-Pilot

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NAMEpmSemStr, pmSemStr_r − convert a performance metric semantic into a string

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C SYNOPSIS#include <pcp/pmapi.h> const char *pmSemStr(int sem);
char *pmSemStr_r(int sem, char *buf, int buflen); cc ... −lpcp

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DESCRIPTIONGiven 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.

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NOTESBoth of these routines are safe to call from threaded applications.

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SEE ALSOPMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmLookupDesc(3), pmPrintValue(3), pmIDStr(3), pmInDomStr(3), pmTypeStr(3) and pmUnitsStr(3). 0

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