From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Tue, 31 Oct 2023 14:47:49 +0000 (-0600)
Subject: Better describe a mutex.
X-Git-Tag: relicensing~329^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F16222%2Fhead;p=dealii.git

Better describe a mutex.
---

diff --git a/include/deal.II/base/subscriptor.h b/include/deal.II/base/subscriptor.h
index 1930ab2622..776afcfa1e 100644
--- a/include/deal.II/base/subscriptor.h
+++ b/include/deal.II/base/subscriptor.h
@@ -265,8 +265,9 @@ private:
   check_no_subscribers() const noexcept;
 
   /**
-   * A mutex used to ensure data consistency when printing out the list
-   * of subscribers.
+   * A mutex used to ensure data consistency when accessing the `mutable`
+   * members of this class. This lock is used in the subscribe() and
+   * unsubscribe() functions, as well as in `list_subscribers()`.
    */
   static std::mutex mutex;
 };