db/update/Walk: move UpdateConfig initialization to class UpdateService

src/db/update/Service.cxx

@@ -151,7 +151,7 @@ UpdateService::StartThread(UpdateQueueItem &&i)
 	modified = false;
 
 	next = std::move(i);
-	walk = new UpdateWalk(GetEventLoop(), listener, *next.storage);
+	walk = new UpdateWalk(config, GetEventLoop(), listener, *next.storage);
 
 	update_thread.Start();
 

src/db/update/Service.hxx

@@ -21,6 +21,7 @@
 #define MPD_UPDATE_SERVICE_HXX
 
 #include "check.h"
+#include "Config.hxx"
 #include "Queue.hxx"
 #include "event/DeferEvent.hxx"
 #include "thread/Thread.hxx"
@@ -35,6 +36,8 @@ class CompositeStorage;
  * This class manages the update queue and runs the update thread.
  */
 class UpdateService final {
+	const UpdateConfig config;
+
 	DeferEvent defer;
 
 	SimpleDatabase &db;

src/db/update/Walk.cxx

@@ -49,9 +49,10 @@
 #include <stdlib.h>
 #include <errno.h>
 
-UpdateWalk::UpdateWalk(EventLoop &_loop, DatabaseListener &_listener,
+UpdateWalk::UpdateWalk(const UpdateConfig &_config,
+		       EventLoop &_loop, DatabaseListener &_listener,
 		       Storage &_storage) noexcept
-	:cancel(false),
+	:config(_config), cancel(false),
 	 storage(_storage),
 	 editor(_loop, _listener)
 {

src/db/update/Walk.hxx

@@ -56,7 +56,8 @@ class UpdateWalk final {
 	DatabaseEditor editor;
 
 public:
-	UpdateWalk(EventLoop &_loop, DatabaseListener &_listener,
+	UpdateWalk(const UpdateConfig &_config,
+		   EventLoop &_loop, DatabaseListener &_listener,
 		   Storage &_storage) noexcept;
 
 	/**