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.

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.

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).