From: Rene Gassmoeller <rene.gassmoeller@mailbox.org>
Date: Thu, 30 Mar 2023 13:22:09 +0000 (-0400)
Subject: Add signal
X-Git-Tag: v9.5.0-rc1~385^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=600ce51995322a8fd9348ec7bac8bd94ace19a81;p=dealii.git

Add signal
---

diff --git a/include/deal.II/matrix_free/fe_point_evaluation.h b/include/deal.II/matrix_free/fe_point_evaluation.h
index 40b65738b1..0e19bd271e 100644
--- a/include/deal.II/matrix_free/fe_point_evaluation.h
+++ b/include/deal.II/matrix_free/fe_point_evaluation.h
@@ -832,6 +832,8 @@ FEPointEvaluation<n_components, dim, spacedim, Number>::FEPointEvaluation(
   , is_reinitialized(false)
 {
   setup(first_selected_component);
+  mapping_info.is_reinitialized.connect(
+    [this]() { this->is_reinitialized = false; });
 }
 
 
diff --git a/include/deal.II/non_matching/mapping_info.h b/include/deal.II/non_matching/mapping_info.h
index 63ad40f87d..3693c3758d 100644
--- a/include/deal.II/non_matching/mapping_info.h
+++ b/include/deal.II/non_matching/mapping_info.h
@@ -182,6 +182,13 @@ namespace NonMatching
     UpdateFlags
     get_update_flags() const;
 
+      /**
+   * This signal is triggered right after
+   * this object is reinitialized, to let dependent
+   * objects know that they need to reinitialize as well.
+   */
+  boost::signals2::signal<void()> is_reinitialized;
+
   private:
     /**
      * Enum class for reinitialized states.
@@ -336,6 +343,8 @@ namespace NonMatching
                                             mapping_data[0]);
 
     state = State::single_cell;
+
+    is_reinitialized();
   }
 
 
@@ -413,6 +422,7 @@ namespace NonMatching
       }
 
     state = State::cell_vector;
+    is_reinitialized();
   }
 
 
@@ -509,6 +519,7 @@ namespace NonMatching
       }
 
     state = State::cell_vector;
+    is_reinitialized();
   }
 
 
@@ -611,6 +622,7 @@ namespace NonMatching
       }
 
     state = State::faces_on_cells_in_vector;
+    is_reinitialized();
   }