MT#59962 XMLRPC2DI: first allocate `XmlRpcServer`

When handling `XMLRPC2DIServer` allocation,
first make sure to have the `XmlRpcServer`
and then do rest of processing (e.g.: `di_export`,
`di_method`, `registerMethods()` etc.)

Otherwise can lead to seg.faults when appealing
to objects via still non-allocated `XmlRpcServer`
object.

Change-Id: Id3395ce3e0d6f2de76ed8caa1a786a6e139a851b

apps/xmlrpc2di/XMLRPC2DI.cpp

@@ -363,18 +363,6 @@ XMLRPC2DIServer::XMLRPC2DIServer(unsigned int port,
   INFO("XMLRPC Server: enabled builtin method 'get_cpslimit'\n");
   INFO("XMLRPC Server: enabled builtin method 'set_cpslimit'\n");
 
-  // export all methods via 'di' function? 
-  if (di_export) {
-    // register method 'di'
-    di_method = new XMLRPC2DIServerDIMethod(s);
-  }
-  
-  vector<string> export_ifaces = explode(direct_export, ";");
-  for(vector<string>::iterator it=export_ifaces.begin(); 
-      it != export_ifaces.end(); it++) {
-    registerMethods(*it);
-  }
-
   if (multithreaded) {
 
     /* default 5 */
@@ -391,6 +379,18 @@ XMLRPC2DIServer::XMLRPC2DIServer(unsigned int port,
     s = new XmlRpcServer();
   }
 
+  // export all methods via 'di' function?
+  if (di_export) {
+    // register method 'di'
+    di_method = new XMLRPC2DIServerDIMethod(s);
+  }
+
+  vector<string> export_ifaces = explode(direct_export, ";");
+  for(vector<string>::iterator it=export_ifaces.begin();
+      it != export_ifaces.end(); it++) {
+    registerMethods(*it);
+  }
+
   INFO("Initialized XMLRPC2DIServer with: \n");
   INFO("    IP = %s             port = %u\n", 
        bind_ip.empty()?"ANY":bind_ip.c_str(), port);