centos man page for pmtypestr_r

PMTYPESTR(3)						     Library Functions Manual						      PMTYPESTR(3)

NAME
       pmTypeStr, pmTypeStr_r - convert a performance metric type into a string

C SYNOPSIS
       #include <pcp/pmapi.h>

       const char *pmTypeStr(int type);
       char *pmTypeStr_r(int type, char *buf, int buflen);

       cc ... -lpcp

DESCRIPTION
       Given  a  performance  metric type, pmTypeStr produces a terse ASCII equivalent, appropriate for use in error and diagnostic messages.  The
       pmTypeStr_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 type is typically extracted from a pmDesc structure, following a call to pmLookupDesc(3) for a particular performance metric.

       Examples are 32 (for type equals PM_TYPE_32), U64 (for type equals PM_TYPE_U64), AGGREGATE (for type equals PM_TYPE_AGGREGATE), etc.

       The string value result for pmTypeStr is held in a single static buffer, so the returned value is only valid until the next call to pmType-
       Str.

NOTES
       pmTypeStr returns a pointer to a static buffer and hence is not thread-safe.  Multi-threaded applications should use pmTypeStr_r instead.

SEE ALSO
       PMAPI(3), pmAtomStr(3), pmConvScale(3), pmExtractValue(3), pmLookupDesc(3), pmPrintValue(3) and pmUnitsStr(3).

Performance Co-Pilot							PCP							      PMTYPESTR(3)