From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 2 Dec 2021 22:16:05 +0000 (-0700)
Subject: Explicitly disallow copying or moving TaskData objects.
X-Git-Tag: v9.4.0-rc1~762^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a4b3ee3f71b95590ed14805742ba91dcc71bfa71;p=dealii.git

Explicitly disallow copying or moving TaskData objects.
---

diff --git a/include/deal.II/base/thread_management.h b/include/deal.II/base/thread_management.h
index e5bcc12e0a..265768f35d 100644
--- a/include/deal.II/base/thread_management.h
+++ b/include/deal.II/base/thread_management.h
@@ -1296,6 +1296,31 @@ namespace Threads
         , task_has_finished(false)
       {}
 
+      /**
+       * There can only be one TaskData object referencing
+       * a task. Make sure that these objects are not copied.
+       */
+      TaskData(const TaskData &) = delete;
+
+      /**
+       * There can only be one TaskData object referencing
+       * a task. Make sure that these objects are not moved.
+       */
+      TaskData(TaskData &&) = delete;
+
+      /**
+       * There can only be one TaskData object referencing
+       * a task. Make sure that these objects are not copied.
+       */
+      TaskData &
+      operator=(const TaskData &) = delete;
+
+      /**
+       * There can only be one TaskData object referencing
+       * a task. Make sure that these objects are not moved.
+       */
+      TaskData &
+      operator=(TaskData &&) = delete;
 
       /**
        * Destructor. Wait for the results to be ready. This ensures that the