From 83323268c5927cb31ff54866b581a9327362065e Mon Sep 17 00:00:00 2001
From: SUTER Frederic <frederic.suter@cc.in2p3.fr>
Date: Thu, 25 Mar 2021 16:37:32 +0100
Subject: [PATCH] why do not implement this?

---
 src/kernel/resource/DiskImpl.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kernel/resource/DiskImpl.cpp b/src/kernel/resource/DiskImpl.cpp
index f44e3fff4d..a7ace5d5d4 100644
--- a/src/kernel/resource/DiskImpl.cpp
+++ b/src/kernel/resource/DiskImpl.cpp
@@ -69,7 +69,7 @@ void DiskImpl::destroy()
 
 bool DiskImpl::is_used() const
 {
-  THROW_UNIMPLEMENTED;
+  return get_model()->get_maxmin_system()->constraint_used(get_constraint());
 }
 
 void DiskImpl::apply_event(kernel::profile::Event* /*event*/, double /*value*/)
-- 
2.20.1