[1207] store and use raw inmem client pointer

(temporarily)
In order to add datasource factory, but keep current code working, store both the shared ptr (for reference counting) and the raw pointer it encapsulates. The latter is then used to call query::process().

src/bin/auth/auth_srv.cc

@@ -142,6 +142,7 @@ public:
     /// In-memory data source.  Currently class IN only for simplicity.
     const RRClass memory_client_class_;
     AuthSrv::InMemoryClientPtr memory_client_;
+    isc::datasrc::InMemoryClient* memory_client_p_;
 
     /// Hot spot cache
     isc::datasrc::HotCache cache_;
@@ -203,6 +204,7 @@ AuthSrvImpl::AuthSrvImpl(const bool use_cache,
     config_session_(NULL),
     xfrin_session_(NULL),
     memory_client_class_(RRClass::IN()),
+    memory_client_p_(NULL),
     statistics_timer_(io_service_),
     counters_(),
     keyring_(NULL),
@@ -400,6 +402,20 @@ AuthSrv::getInMemoryClient(const RRClass& rrclass) {
     return (impl_->memory_client_);
 }
 
+isc::datasrc::InMemoryClient*
+AuthSrv::getInMemoryClientP(const RRClass& rrclass) {
+    // XXX: for simplicity, we only support the IN class right now.
+    if (rrclass != impl_->memory_client_class_) {
+        isc_throw(InvalidParameter,
+                  "Memory data source is not supported for RR class "
+                  << rrclass);
+    }
+    if (!impl_->memory_client_) {
+        isc_throw(Exception, "no memory client set");
+    }
+    return (impl_->memory_client_p_);
+}
+
 void
 AuthSrv::setInMemoryClient(const isc::dns::RRClass& rrclass,
                            InMemoryClientPtr memory_client)
@@ -417,6 +433,7 @@ AuthSrv::setInMemoryClient(const isc::dns::RRClass& rrclass,
                   .arg(rrclass);
     }
     impl_->memory_client_ = memory_client;
+    impl_->memory_client_p_ = memory_client.get();
 }
 
 uint32_t
@@ -585,10 +602,10 @@ AuthSrvImpl::processNormalQuery(const IOMessage& io_message, Message& message,
         // If a memory data source is configured call the separate
         // Query::process()
         const ConstQuestionPtr question = *message.beginQuestion();
-        if (memory_client_ && memory_client_class_ == question->getClass()) {
+        if (memory_client_p_ && memory_client_class_ == question->getClass()) {
             const RRType& qtype = question->getType();
             const Name& qname = question->getName();
-            query_.process(*memory_client_, qname, qtype, message, dnssec_ok);
+            query_.process(*memory_client_p_, qname, qtype, message, dnssec_ok);
         } else {
             datasrc::Query query(message, cache_, dnssec_ok);
             data_sources_.doQuery(query);

src/bin/auth/auth_srv.h

@@ -263,6 +263,7 @@ public:
     /// \return A pointer to the in-memory data source, if configured;
     /// otherwise NULL.
     InMemoryClientPtr getInMemoryClient(const isc::dns::RRClass& rrclass);
+    isc::datasrc::InMemoryClient* getInMemoryClientP(const isc::dns::RRClass& rrclass);
 
     /// Sets or replaces the in-memory data source of the specified RR class.
     ///