From d5f645ee69c784d0f8bad9f30cccc3560ae4f0b2 Mon Sep 17 00:00:00 2001
From: Martin Stein <martin.stein@genode-labs.com>
Date: Wed, 7 Mar 2018 13:56:52 +0100
Subject: [PATCH] nic_router: destroy_each for list wrapper

List method to destruct and deallocate each item of a list.

Ref #2670
---
 repos/os/src/server/nic_router/list.h | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/repos/os/src/server/nic_router/list.h b/repos/os/src/server/nic_router/list.h
index 64bc2c2e31..d49bbebd08 100644
--- a/repos/os/src/server/nic_router/list.h
+++ b/repos/os/src/server/nic_router/list.h
@@ -16,23 +16,33 @@
 
 /* Genode includes */
 #include <util/list.h>
+#include <base/allocator.h>
+
+namespace Net { template <typename> class List; }
 
-namespace Net {
-	template <typename> class List;
-}
 
 template <typename LT>
 struct Net::List : Genode::List<LT>
 {
+	using Base = Genode::List<LT>;
+
 	template <typename FUNC>
 	void for_each(FUNC && functor)
 	{
-		for (LT * elem = Genode::List<LT>::first(); elem;
-		     elem = elem->Genode::List<LT>::Element::next())
+		for (LT * elem = Base::first(); elem;
+		     elem = elem->Base::Element::next())
 		{
 			functor(*elem);
 		}
 	}
+
+	void destroy_each(Genode::Deallocator &dealloc)
+	{
+		while (LT *elem = Base::first()) {
+			Base::remove(elem);
+			destroy(dealloc, elem);
+		}
+	}
 };
 
 #endif /* _LIST_H_ */