commit 2d31587003068f754f1c662c620964cbdd99750f
Author: Thomas Schöpping <tschoepp@cit-ec.uni-bielefeld.de>
Date:   Mon May 11 13:10:28 2020 +0200

    Documentation massively overhauled:
    - Remote Procedure Call system massively reworked.
    - Component diagram slightly enhanced.
    - Several fixes.

diff --git a/doc/activitydiagrams/subscriber/nrtsubscriber/urtNrtSubscriberFetchNextMessage.svg b/doc/activitydiagrams/subscriber/nrtsubscriber/urtNrtSubscriberFetchNextMessage.svg
index 3edfd56..f7f449c 100644
--- a/doc/activitydiagrams/subscriber/nrtsubscriber/urtNrtSubscriberFetchNextMessage.svg
+++ b/doc/activitydiagrams/subscriber/nrtsubscriber/urtNrtSubscriberFetchNextMessage.svg
@@ -1,4 +1,4 @@
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stroke-width: 1.0;"/><path d="M2295.75,72.8594 L2295.75,82.8594 L2305.75,82.8594 L2295.75,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1753.75" x2="1916.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1920.75" y="89.4263"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="78" x="1920.75" y="89.4263">subscriber</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="136" x="2002.75" y="89.4263">: urt_nrtsubscriber_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2142.75" x2="2305.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="313" x="1759.75" y="105.0591">The NRT subscriber that shall fetch the message.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="1759.75" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1839.75" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1871.75" y="120.1919">.</text><line style="stroke: #A80036; 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stroke-width: 1.0;" x1="1753.75" x2="1980.75" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1984.75" y="180.2231"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="41" x="1984.75" y="180.2231">bytes</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="45" x="2029.75" y="180.2231">: size_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2078.75" x2="2305.75" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="137" x="1759.75" y="195.856">Payload size in bytes.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1753.75" x2="1954.25" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1958.25" y="210.4888"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="53" x="1958.25" y="210.4888">latency</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="86" x="2015.25" y="210.4888">: urt_delay_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2105.25" x2="2305.75" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="267" x="1759.75" y="226.1216">The latency can be returned by reference.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="1759.75" y="241.2544">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1809.75" y="241.2544">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1841.75" y="241.2544">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1753.75" x2="2305.75" y1="249.3203" y2="249.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1753.75" x2="2305.75" y1="251.3203" y2="251.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1753.75" x2="1958.75" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1962.75" y="265.8872"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="45" x="1962.75" y="265.8872">return</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="85" x="2011.75" y="265.8872">: urt_status_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2100.75" x2="2305.75" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1759.75" y="281.52">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="1812.75" y="281.52">URT_STATUS_OK</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="75" x="1920.75" y="281.52">on success.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1759.75" y="296.6528">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="192" x="1812.75" y="296.6528">URT_STATUS_FETCH_NOTOPIC</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="282" x="2008.75" y="296.6528">if the subscriber is not associated to a topic.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1759.75" y="311.7856">Retruns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1812.75" y="311.7856">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="228" x="2024.75" y="311.7856">if there is no new message to fetch.</text><ellipse cx="2029.75" cy="349.8516" fill="#000000" filter="url(#f1b2x1rhqosozb)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1967.25,379.8516,2092.25,379.8516,2104.25,391.8516,2092.25,403.8516,1967.25,403.8516,1955.25,391.8516,1967.25,379.8516" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="1967.25" y="395.6597">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1935.25" y="389.2573">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2104.25" y="389.2573">no</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="1189.5" y="413.8516"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="1199.5" y="434.9902">lock topic</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1080,467.8203,1379,467.8203,1391,479.8203,1379,491.8203,1080,491.8203,1068,479.8203,1080,467.8203" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="299" x="1080" y="483.6284">Timestamp of last read message equals local copy?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1048" y="477.2261">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1391" y="477.2261">no</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="938.125,501.8203,1090.125,501.8203,1102.125,513.8203,1090.125,525.8203,938.125,525.8203,926.125,513.8203,938.125,501.8203" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="152" x="938.125" y="517.6284">Next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="906.125" y="511.2261">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1102.125" y="511.2261">no</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="709.875" y="535.8203"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="719.875" y="556.959">proceed to next message</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="1179.875" y="535.8203"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="1189.875" y="556.959">unlock topic</text><path d="M910.875,588.2227 L910.875,613.3555 A0,0 0 0 0 910.875,613.3555 L1196.875,613.3555 A0,0 0 0 0 1196.875,613.3555 L1196.875,606.2227 L1216.875,600.7891 L1196.875,598.2227 L1196.875,598.2227 L1186.875,588.2227 L910.875,588.2227 A0,0 0 0 0 910.875,588.2227 " fill="#FBFB77" filter="url(#f1b2x1rhqosozb)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1186.875,588.2227 L1186.875,598.2227 L1196.875,598.2227 L1186.875,588.2227 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="916.875" y="605.2896">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="969.875" y="605.2896">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1177.875" y="605.2896">.</text><ellipse cx="1227.875" cy="600.7891" fill="#FFFFFF" filter="url(#f1b2x1rhqosozb)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1227.875" cy="600.7891" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FFFFFF" filter="url(#f1b2x1rhqosozb)" height="181.6992" style="stroke: #000000; stroke-width: 2.0;" width="302" x="1305.875" y="501.8203"/><path d="M1455.875,502.8203 L1455.875,511.1172 L1445.875,521.1172 L1305.875,521.1172 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="140" x="1308.875" y="515.8154">find oldest message</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="1354.375" y="593.5508"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="1364.375" y="614.6895">proceed to next message</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1444.875,538.1172,1456.875,550.1172,1444.875,562.1172,1432.875,550.1172,1444.875,538.1172" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1327.875,647.5195,1561.875,647.5195,1573.875,659.5195,1561.875,671.5195,1327.875,671.5195,1315.875,659.5195,1327.875,647.5195" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="234" x="1327.875" y="663.3276">Timestamp of next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1573.875" y="656.9253">yes</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1229.5,689.5195,1241.5,701.5195,1229.5,713.5195,1217.5,701.5195,1229.5,689.5195" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#000000" filter="url(#f1b2x1rhqosozb)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2495" x="10" y="733.5195"/><rect fill="#FFFFFF" filter="url(#f1b2x1rhqosozb)" height="142.2656" style="stroke: #000000; stroke-width: 2.0;" width="584" x="22" y="848.208"/><path d="M135,849.208 L135,857.5049 L125,867.5049 L22,867.5049 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="103" x="25" y="862.2031">fetch message</text><rect fill="#000000" filter="url(#f1b2x1rhqosozb)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="884.5049"/><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="46" y="910.5049"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="155" x="56" y="931.6436">update message pointer</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="180" x="231" y="910.5049"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="160" x="241" y="931.6436">copy message origin time</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="163" x="421" y="910.5049"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="143" x="431" y="931.6436">copy message payload</text><rect fill="#000000" filter="url(#f1b2x1rhqosozb)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="964.4736"/><path d="M761.5,763.9375 L761.5,789.0703 A0,0 0 0 0 761.5,789.0703 L1081.5,789.0703 A0,0 0 0 0 1081.5,789.0703 L1081.5,781.9375 L1101.5,776.5039 L1081.5,773.9375 L1081.5,773.9375 L1071.5,763.9375 L761.5,763.9375 A0,0 0 0 0 761.5,763.9375 " fill="#FBFB77" filter="url(#f1b2x1rhqosozb)" style="stroke: #A80036; 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stroke-width: 1.0;"/><path d="M2295.75,72.8594 L2295.75,82.8594 L2305.75,82.8594 L2295.75,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1753.75" x2="1916.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1920.75" y="89.4263"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="78" x="1920.75" y="89.4263">subscriber</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="136" x="2002.75" y="89.4263">: urt_nrtsubscriber_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2142.75" x2="2305.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="313" x="1759.75" y="105.0591">The NRT subscriber that shall fetch the message.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="1759.75" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1839.75" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1871.75" y="120.1919">.</text><line style="stroke: #A80036; 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stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1967.25,379.8516,2092.25,379.8516,2104.25,391.8516,2092.25,403.8516,1967.25,403.8516,1955.25,391.8516,1967.25,379.8516" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="1967.25" y="395.6597">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1935.25" y="389.2573">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2104.25" y="389.2573">no</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="1189.5" y="413.8516"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="1199.5" y="434.9902">lock topic</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1080,467.8203,1379,467.8203,1391,479.8203,1379,491.8203,1080,491.8203,1068,479.8203,1080,467.8203" style="stroke: #A80036; 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stroke-width: 1.5;" width="181" x="709.875" y="535.8203"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="719.875" y="556.959">proceed to next message</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="1179.875" y="535.8203"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="1189.875" y="556.959">unlock topic</text><path d="M910.875,588.2227 L910.875,613.3555 A0,0 0 0 0 910.875,613.3555 L1196.875,613.3555 A0,0 0 0 0 1196.875,613.3555 L1196.875,606.2227 L1216.875,600.7891 L1196.875,598.2227 L1196.875,598.2227 L1186.875,588.2227 L910.875,588.2227 A0,0 0 0 0 910.875,588.2227 " fill="#FBFB77" filter="url(#f1b2x1rhqosozb)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1186.875,588.2227 L1186.875,598.2227 L1196.875,598.2227 L1186.875,588.2227 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="916.875" y="605.2896">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="969.875" y="605.2896">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1177.875" y="605.2896">.</text><ellipse cx="1227.875" cy="600.7891" fill="#FFFFFF" filter="url(#f1b2x1rhqosozb)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1227.875" cy="600.7891" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FFFFFF" filter="url(#f1b2x1rhqosozb)" height="181.6992" style="stroke: #000000; stroke-width: 2.0;" width="302" x="1305.875" y="501.8203"/><path d="M1455.875,502.8203 L1455.875,511.1172 L1445.875,521.1172 L1305.875,521.1172 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="140" x="1308.875" y="515.8154">find oldest message</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="1354.375" y="593.5508"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="1364.375" y="614.6895">proceed to next message</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1444.875,538.1172,1456.875,550.1172,1444.875,562.1172,1432.875,550.1172,1444.875,538.1172" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1327.875,647.5195,1561.875,647.5195,1573.875,659.5195,1561.875,671.5195,1327.875,671.5195,1315.875,659.5195,1327.875,647.5195" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="234" x="1327.875" y="663.3276">Timestamp of next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1573.875" y="656.9253">yes</text><polygon fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" points="1229.5,689.5195,1241.5,701.5195,1229.5,713.5195,1217.5,701.5195,1229.5,689.5195" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#000000" filter="url(#f1b2x1rhqosozb)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2495" x="10" y="733.5195"/><rect fill="#FFFFFF" filter="url(#f1b2x1rhqosozb)" height="142.2656" style="stroke: #000000; stroke-width: 2.0;" width="584" x="22" y="848.208"/><path d="M135,849.208 L135,857.5049 L125,867.5049 L22,867.5049 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="103" x="25" y="862.2031">fetch message</text><rect fill="#000000" filter="url(#f1b2x1rhqosozb)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="884.5049"/><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="46" y="910.5049"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="155" x="56" y="931.6436">update message pointer</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; 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stroke-width: 1.0;"/><path d="M1071.5,763.9375 L1071.5,773.9375 L1081.5,773.9375 L1071.5,763.9375 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="299" x="767.5" y="781.0044">Can be optimized in case all flags are disabled.</text><rect fill="#FEFECE" filter="url(#f1b2x1rhqosozb)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="187" x="1101.5" y="759.5195"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="1111.5" y="780.6582">calculate message latency</text><rect fill="#000000" filter="url(#f1b2x1rhqosozb)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1160" x="616" y="813.4883"/><rect fill="#EEEEEE" filter="url(#f1b2x1rhqosozb)" height="47.9375" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="252" x="628" y="929.8564"/><line style="stroke: #A80036; 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 @startuml
 
 title **µRtWare**\nurtNrtSubscriberFetchNextMessage()\n
@@ -109,7 +109,7 @@ PlantUML version 1.2020.00(Sat Jan 11 13:30:53 CET 2020)
 (GPL source distribution)
 Java Runtime: OpenJDK Runtime Environment
 JVM: OpenJDK 64-Bit Server VM
-Java Version: 11.0.6+10-post-Ubuntu-1ubuntu118.04.1
+Java Version: 11.0.7+10-post-Ubuntu-2ubuntu218.04
 Operating System: Linux
 Default Encoding: UTF-8
 Language: en
