NAME

       pmInDomStr, pmInDomStr_r - convert a performance metric instance domain identifier into a string

C SYNOPSIS

       #include <pcp/pmapi.h>

       const char *pmInDomStr(pmInDom indom);
       char *pmInDomStr_r(pmInDom indom, char *buf, int buflen);

       cc ... -lpcp

DESCRIPTION

       For  use  in error and diagnostic messages, pmInDomStr return a 'human readable' version of the specified
       instance domain identifier.  The pmInDomStr_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 the instance domain indom is typically extracted from a pmDesc structure, following a call
       to pmLookupDesc(3) for a particular performance metric.

       Internally, an instance domain identifier is encoded with two fields: domain and serial.

       pmInDomStr returns a string with each of the fields appearing as decimal numbers, separated by periods.

       The string value returned by pmInDomStr is held in a single static buffer, so the returned value is  only
       valid until the next call to pmInDomStr.

NOTES

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

PCP ENVIRONMENT

       Environment variables with the prefix PCP_ are used to parameterize the file and directory names used  by
       PCP.   On  each  installation, the file /etc/pcp.conf contains the local values for these variables.  The
       $PCP_CONF variable may be used to specify an alternative configuration file, as described in pcp.conf(5).
       Values for these variables may be obtained programmatically using the pmGetConfig(3) function.

SEE ALSO

       PMAPI(3),   pmGetConfig(3),   pmIDStr(3),   pmTypeStr(3),  pmSemStr(3),  pmUnitsStr(3),  pmLookupDesc(3),
       pcp.conf(5) and pcp.env(5).