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NAME

       pmGetPMNSLocation - determine the location of the currently used PMNS

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmGetPMNSLocation(void)

       cc ... -lpcp

DESCRIPTION

       If  an  application  needs  to  know where the Performance Metrics Name
       Space (PMNS) is coming from then pmGetPMNSLocation will return  whether
       it  is  from  an  archive,  PMNS_ARCHIVE,  or  from  a local PMNS file,
       PMNS_LOCAL, or from a remote pmcd, PMNS_REMOTE.

       This information may be useful  in  determining  an  appropriate  error
       message depending on the PMNS’ location.

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(4).  Values for these variables may be
       obtained programatically using the pmGetConfig(3) function.

SEE ALSO

       PMAPI(3), pmGetConfig(3), pmLoadASCIINameSpace(3),  pmLoadNameSpace(3),
       pmTrimNameSpace(3), pcp.conf(4), pcp.env(4) and pmns(4).

DIAGNOSTICS

       PM_ERR_NOPMNS
              If  is  not possible to determine where the location of the PMNS
              is.  This could be due to problems with the current  context  or
              being unable to load a local PMNS.