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(5).   Values  for these variables may be
       obtained programmatically using the pmGetConfig(3) function.

SEE ALSO

       PMAPI(3), pmGetConfig(3), pmLoadASCIINameSpace(3), pmLoadNameSpace(3), pmTrimNameSpace(3),
       pcp.conf(5), pcp.env(5) and pmns(5).

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.