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       pmdaDSO - initialize the PMDA to run as a DSO


       #include <pcp/pmapi.h>
       #include <pcp/impl.h>
       #include <pcp/pmda.h>

       int  pmdaDSO(pmdaInterface  *dispatch,  int interface, char *name, char

       cc ... -lpcp_pmda -lpcp


       pmdaDSO initializes the pmdaInterface structure to  use  the  interface
       extensions,  assuming  the  PMDA(3)  is  to  be  run  as  a  DSO.   The
       pmdaInterface structure is initialized with:

       name           The name of the agent.

       helptext       The default path to the help text (see pmdaText(3).   If
                      no  help  text  is  installed,  or  you  are  not  using
                      pmdaText(3), then this should be set to NULL.

       The  callbacks  are  initialized   to   pmdaProfile(3),   pmdaFetch(3),
       pmdaDesc(3), pmdaText(3), pmdaInstance(3) and pmdaStore(3).

       The  interface structure also contains the domain of the PMDA(3), which
       is defined in the pmcd(1) configuration file. The  domain  is  used  to
       initialize the metric and instance descriptors (see pmdaInit(3)).


       Incompatible version of pmcd detected
                      When  pmcd(1)  creates  the pmdaInterface structure, the
                      dispatch.comm.version  field  is  set  to  the   highest
                      protocol   that   pmcd(1)   understands.   This  message
                      indicates that the pmcd(1) process does  not  understand
                      the protocol used by pmdaDSO.

       Unable to allocate memory for pmdaExt structure
                      In  addition,  dispatch->status  is  set to a value less
                      than zero.


       The PMDA must be using PMDA_INTERFACE_2 or later.


       pmcd(1), PMAPI(3), PMDA(3), pmdaDaemon(3), pmdaInit(3) and pmdaText(3).