Man Linux: Main Page and Category List


       pmGetConfig - return Performance Co-Pilot configuration variable


       #include <pcp/pmapi.h>

       char *pmGetConfig(const char *variable)

       cc ... -lpcp


       The pmGetConfig function searches for variable first in the environment
       and then, if not found, in the Performance Co-Pilot (PCP) configuration
       file  and returns the string result.  If variable is not already in the
       environment, it is added with a call to putenv(3) before returning.

       The default location of the PCP configuration file is /etc/pcp.conf but
       this  may  be  changed  by setting PCP_CONF in the environment to a new
       location, as described in pcp.conf(4).


       If variable is  not  found  in  either  the  environment  nor  the  PCP
       configuration  file  (or  the  PCP  configuration file is not found and
       PCP_CONF is not set in the environment), then a fatal error message  is
       printed and the process will exit(2).  Although this sounds drastic, it
       is  the   only   course   of   action   available   because   the   PCP
       configuration/installation is fatally flawed.

       If  this function returns, the returned value points to a string in the
       environment and so changing it is a bad idea.   This  function  returns
       the  same  type  as  the getenv(3) function (which should probably be a
       const char *).


       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.


       PCPIntro(1),  exit(2),  PMAPI(3),  getenv(3C), putenv(3C), pcp.conf(4),
       pcp.env(4) and environ(5).


       This manual page originated from an earlier release of  PCP  for  IRIX.
       Although some porting effort has been made, there may be some remaining
       inconsistencies with PCP for Linux (and for other  operating  systems).
       When this documentation is updated, this caveat will be removed.