Re: (ITS#8649) Issue when fetching the backend that will receive the contextCSN when we have glued databases

[elecharny@gmail.com]

Using a function to compute the working backend, it could be something
like :

void setWorkingBackend( syncinfo_t *syncInfo, Backend *backend )
{
    if ( !syncInfo->si_wbe )
    {
        if ( SLAP_GLUE_SUBORDINATE( backend ) && !overlay_is_inst(
backend, "syncprov" ) )
        {
            // The backend has a parent backend, fetch it. Note that we
want to get the
            // top parent, not one of the intermediary subordinate,
unless one of them
            // has a syncprov overlay declared. If the top level backend
            // does not have a syncprov overlay declared, then we use
the local DB
            // as a working backend.
            BackendDB *currentBackend = backend;
            struct berval bv;
            ber_str2bv( currentBackend->be_nsuffix[0].bv_val, 0, 0, &bv );
            dnParent( &bv, &bv );
           
            while ( ( currentBackend = select_backend( &bv, 0 ) ) != NULL )
            {
                if ( overlay_is_inst( currentBackend, "syncprov" ) )
                {
                    syncInfo->si_wbe = currentBackend;
                    break;
                }
               
                dnParent( &bv, &bv );
            }
                       
            if ( syncInfo->si_wbe == NULL )
            {
                syncInfo->si_wbe = backend;
            }
        }
        else
        {
            syncInfo->si_wbe = backend;
        }
       
        if ( SLAP_SYNC_SUBENTRY( syncInfo->si_wbe ) )
        {
            build_new_dn( &syncInfo->si_contextdn,
&syncInfo->si_wbe->be_nsuffix[0], (struct berval *)
&slap_ldapsync_cn_bv, NULL );
        }
        else
        {
            syncInfo->si_contextdn = syncInfo->si_wbe->be_nsuffix[0];
        }
    }
}


We call it with

        setWorkingBackend( si, be );


-- 
Emmanuel Lecharny

Symas.com
directory.apache.org