commit c22d21adf8eb95fd23d41cc425b97ccb69d2232a
Author: Thomas Schöpping <tschoepp@cit-ec.uni-bielefeld.de>
Date:   Fri Feb 21 17:07:24 2020 +0100

    documentation: removed mutex lock from message structure (was redundantly used with topic lock)

diff --git a/doc/activitydiagrams/subscriber/urtSubscriberSubscribeNrt.svg b/doc/activitydiagrams/subscriber/urtSubscriberSubscribeNrt.svg
index bb6dda6..46d8d6a 100644
--- a/doc/activitydiagrams/subscriber/urtSubscriberSubscribeNrt.svg
+++ b/doc/activitydiagrams/subscriber/urtSubscriberSubscribeNrt.svg
@@ -1,4 +1,4 @@
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stroke-width: 1.0;"/><path d="M538,72.8594 L538,82.8594 L548,82.8594 L538,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="10" x2="155" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="159" y="89.4263"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="80" x="159" y="89.4263">subscriber</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="152" x="247" y="89.4263">: urt_subscriber_t*</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="403" y="89.4263"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="403" x2="548" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="298" x="16" y="105.0591">The subscriber which shall subscribe to a topic.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="16" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="96" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="128" y="120.1919">.</text><line style="stroke: #A80036; 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 @startuml
 
 title **µRtWare**\nurtSubscriberNrt()\n
@@ -37,21 +37,23 @@ else (no)
   fork again
     :set topic;
   endfork
-  :lock topic;
   fork
-    if (Messages to contribute?) then (yes)
-      partition "contribute messages" {
-        :set next pointer of topic's latest message to first message to contribute;
-        :set next pointer of last message to contribute to the message after the topic's latest message;
-      }
-    else (no)
-    endif
-  fork again
-    :set message pointer to topic's latest message;
+    :lock topic;
+    fork
+      if (Messages to contribute?) then (yes)
+        partition "contribute messages" {
+          :set next pointer of topic's latest message to first message to contribute;
+          :set next pointer of last message to contribute to the message after the topic's latest message;
+        }
+      else (no)
+      endif
+    fork again
+      :set message pointer to topic's latest message;
+    endfork
+    :unlock topic;
   fork again
     :register to topic's event source;
   endfork
-  :unlock topic;
   :return ""URT_STATUS_OK"";
 endif
 
