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/frtsubscriber/urtFrtSubscriberFetchNextMessage.svg b/doc/activitydiagrams/subscriber/frtsubscriber/urtFrtSubscriberFetchNextMessage.svg
index 5de2fdf..3fd5ac4 100644
--- a/doc/activitydiagrams/subscriber/frtsubscriber/urtFrtSubscriberFetchNextMessage.svg
+++ b/doc/activitydiagrams/subscriber/frtsubscriber/urtFrtSubscriberFetchNextMessage.svg
@@ -1,4 +1,4 @@
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stroke-width: 1.0;"/><path d="M2596.75,72.8594 L2596.75,82.8594 L2606.75,82.8594 L2596.75,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1917.75" x2="2151.25" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="2155.25" y="89.4263"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="78" x="2155.25" y="89.4263">subscriber</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="132" x="2237.25" y="89.4263">: urt_frtsubscriber_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2373.25" x2="2606.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="310" x="1923.75" y="105.0591">The FRT subscriber that shall fetch the message.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="1923.75" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="2003.75" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="2035.75" y="120.1919">.</text><line style="stroke: #A80036; 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stroke-width: 1.0;" x1="1917.75" x2="2213.25" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="2217.25" y="180.2231"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="41" x="2217.25" y="180.2231">bytes</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="45" x="2262.25" y="180.2231">: size_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2311.25" x2="2606.75" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="137" x="1923.75" y="195.856">Payload size in bytes.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1917.75" x2="2186.75" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="2190.75" y="210.4888"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="53" x="2190.75" y="210.4888">latency</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="86" x="2247.75" y="210.4888">: urt_delay_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2337.75" x2="2606.75" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="267" x="1923.75" 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="1923.75" y="241.2544">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1973.75" y="241.2544">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="2005.75" y="241.2544">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1917.75" x2="2606.75" y1="249.3203" y2="249.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1917.75" x2="2606.75" y1="251.3203" y2="251.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1917.75" x2="2191.25" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="2195.25" y="265.8872"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="45" x="2195.25" y="265.8872">return</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="85" x="2244.25" y="265.8872">: urt_status_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="2333.25" x2="2606.75" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1923.75" y="281.52">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="1976.75" y="281.52">URT_STATUS_OK</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="75" x="2084.75" y="281.52">on success.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1923.75" y="296.6528">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="192" x="1976.75" y="296.6528">URT_STATUS_FETCH_NOTOPIC</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="282" x="2172.75" 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="1923.75" y="311.7856">Retruns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1976.75" y="311.7856">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="228" x="2188.75" y="311.7856">if there is no new message to fetch.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1923.75" y="326.9185">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1976.75" y="326.9185">URT_STATUS_JITTERVIOLATION</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="403" x="2188.75" y="326.9185">if the message's latency violated the maximum expected jitter.</text><ellipse cx="2262.25" cy="364.9844" fill="#000000" filter="url(#f16b2sm6ci0efs)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="2199.75,394.9844,2324.75,394.9844,2336.75,406.9844,2324.75,418.9844,2199.75,418.9844,2187.75,406.9844,2199.75,394.9844" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="2199.75" y="410.7925">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="2167.75" y="404.3901">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2336.75" y="404.3901">no</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="1362.5" y="428.9844"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="1372.5" y="450.123">lock topic</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1253,482.9531,1552,482.9531,1564,494.9531,1552,506.9531,1253,506.9531,1241,494.9531,1253,482.9531" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="299" x="1253" y="498.7612">Timestamp of last read message equals local copy?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1221" y="492.3589">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1564" y="492.3589">no</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1111.125,516.9531,1263.125,516.9531,1275.125,528.9531,1263.125,540.9531,1111.125,540.9531,1099.125,528.9531,1111.125,516.9531" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="152" x="1111.125" y="532.7612">Next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1079.125" y="526.3589">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1275.125" y="526.3589">no</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="882.875" y="550.9531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="892.875" y="572.0918">proceed to next message</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="1352.875" y="550.9531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="1362.875" y="572.0918">unlock topic</text><path d="M1083.875,603.3555 L1083.875,628.4883 A0,0 0 0 0 1083.875,628.4883 L1369.875,628.4883 A0,0 0 0 0 1369.875,628.4883 L1369.875,621.3555 L1389.875,615.9219 L1369.875,613.3555 L1369.875,613.3555 L1359.875,603.3555 L1083.875,603.3555 A0,0 0 0 0 1083.875,603.3555 " fill="#FBFB77" filter="url(#f16b2sm6ci0efs)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1359.875,603.3555 L1359.875,613.3555 L1369.875,613.3555 L1359.875,603.3555 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1089.875" y="620.4224">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1142.875" y="620.4224">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1350.875" y="620.4224">.</text><ellipse cx="1400.875" cy="615.9219" fill="#FFFFFF" filter="url(#f16b2sm6ci0efs)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1400.875" cy="615.9219" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FFFFFF" filter="url(#f16b2sm6ci0efs)" height="181.6992" style="stroke: #000000; stroke-width: 2.0;" width="302" x="1478.875" y="516.9531"/><path d="M1628.875,517.9531 L1628.875,526.25 L1618.875,536.25 L1478.875,536.25 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="140" x="1481.875" y="530.9482">find oldest message</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="1527.375" y="608.6836"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="1537.375" y="629.8223">proceed to next message</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1617.875,553.25,1629.875,565.25,1617.875,577.25,1605.875,565.25,1617.875,553.25" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1500.875,662.6523,1734.875,662.6523,1746.875,674.6523,1734.875,686.6523,1500.875,686.6523,1488.875,674.6523,1500.875,662.6523" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="234" x="1500.875" y="678.4604">Timestamp of next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1746.875" y="672.0581">yes</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1402.5,704.6523,1414.5,716.6523,1402.5,728.6523,1390.5,716.6523,1402.5,704.6523" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2814" x="10" y="748.6523"/><rect fill="#FFFFFF" filter="url(#f16b2sm6ci0efs)" height="142.2656" style="stroke: #000000; stroke-width: 2.0;" width="584" x="22" y="863.3408"/><path d="M135,864.3408 L135,872.6377 L125,882.6377 L22,882.6377 " 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="877.3359">fetch message</text><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="899.6377"/><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="46" y="925.6377"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="155" x="56" y="946.7764">update message pointer</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="180" x="231" y="925.6377"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="160" x="241" y="946.7764">copy message origin time</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="163" x="421" y="925.6377"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="143" x="431" y="946.7764">copy message payload</text><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="979.6064"/><path d="M934.5,779.0703 L934.5,804.2031 A0,0 0 0 0 934.5,804.2031 L1254.5,804.2031 A0,0 0 0 0 1254.5,804.2031 L1254.5,797.0703 L1274.5,791.6367 L1254.5,789.0703 L1254.5,789.0703 L1244.5,779.0703 L934.5,779.0703 A0,0 0 0 0 934.5,779.0703 " fill="#FBFB77" filter="url(#f16b2sm6ci0efs)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1244.5,779.0703 L1244.5,789.0703 L1254.5,789.0703 L1244.5,779.0703 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="299" x="940.5" y="796.1372">Can be optimized in case all flags are disabled.</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="187" x="1274.5" y="774.6523"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="1284.5" y="795.791">calculate message latency</text><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1479" x="616" y="828.6211"/><rect fill="#EEEEEE" filter="url(#f16b2sm6ci0efs)" height="47.9375" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="252" x="628" y="944.9893"/><line style="stroke: #A80036; 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stroke-width: 1.0;" x1="2333.25" x2="2606.75" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1923.75" y="281.52">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="1976.75" y="281.52">URT_STATUS_OK</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="75" x="2084.75" y="281.52">on success.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1923.75" y="296.6528">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="192" x="1976.75" y="296.6528">URT_STATUS_FETCH_NOTOPIC</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="282" x="2172.75" 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="1923.75" y="311.7856">Retruns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1976.75" y="311.7856">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="228" x="2188.75" y="311.7856">if there is no new message to fetch.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1923.75" y="326.9185">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1976.75" y="326.9185">URT_STATUS_JITTERVIOLATION</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="403" x="2188.75" y="326.9185">if the message's latency violated the maximum expected jitter.</text><ellipse cx="2262.25" cy="364.9844" fill="#000000" filter="url(#f16b2sm6ci0efs)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="2199.75,394.9844,2324.75,394.9844,2336.75,406.9844,2324.75,418.9844,2199.75,418.9844,2187.75,406.9844,2199.75,394.9844" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="2199.75" y="410.7925">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="2167.75" y="404.3901">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2336.75" y="404.3901">no</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="1362.5" y="428.9844"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="1372.5" y="450.123">lock topic</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1253,482.9531,1552,482.9531,1564,494.9531,1552,506.9531,1253,506.9531,1241,494.9531,1253,482.9531" style="stroke: #A80036; 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stroke-width: 1.5;" width="181" x="882.875" y="550.9531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="892.875" y="572.0918">proceed to next message</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="1352.875" y="550.9531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="1362.875" y="572.0918">unlock topic</text><path d="M1083.875,603.3555 L1083.875,628.4883 A0,0 0 0 0 1083.875,628.4883 L1369.875,628.4883 A0,0 0 0 0 1369.875,628.4883 L1369.875,621.3555 L1389.875,615.9219 L1369.875,613.3555 L1369.875,613.3555 L1359.875,603.3555 L1083.875,603.3555 A0,0 0 0 0 1083.875,603.3555 " fill="#FBFB77" filter="url(#f16b2sm6ci0efs)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1359.875,603.3555 L1359.875,613.3555 L1369.875,613.3555 L1359.875,603.3555 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1089.875" y="620.4224">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1142.875" y="620.4224">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1350.875" y="620.4224">.</text><ellipse cx="1400.875" cy="615.9219" fill="#FFFFFF" filter="url(#f16b2sm6ci0efs)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="1400.875" cy="615.9219" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#FFFFFF" filter="url(#f16b2sm6ci0efs)" height="181.6992" style="stroke: #000000; stroke-width: 2.0;" width="302" x="1478.875" y="516.9531"/><path d="M1628.875,517.9531 L1628.875,526.25 L1618.875,536.25 L1478.875,536.25 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="140" x="1481.875" y="530.9482">find oldest message</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="1527.375" y="608.6836"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="1537.375" y="629.8223">proceed to next message</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1617.875,553.25,1629.875,565.25,1617.875,577.25,1605.875,565.25,1617.875,553.25" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1500.875,662.6523,1734.875,662.6523,1746.875,674.6523,1734.875,686.6523,1500.875,686.6523,1488.875,674.6523,1500.875,662.6523" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="234" x="1500.875" y="678.4604">Timestamp of next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1746.875" y="672.0581">yes</text><polygon fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" points="1402.5,704.6523,1414.5,716.6523,1402.5,728.6523,1390.5,716.6523,1402.5,704.6523" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2814" x="10" y="748.6523"/><rect fill="#FFFFFF" filter="url(#f16b2sm6ci0efs)" height="142.2656" style="stroke: #000000; stroke-width: 2.0;" width="584" x="22" y="863.3408"/><path d="M135,864.3408 L135,872.6377 L125,882.6377 L22,882.6377 " 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="877.3359">fetch message</text><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="899.6377"/><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="46" y="925.6377"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="155" x="56" y="946.7764">update message pointer</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="180" x="231" y="925.6377"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="160" x="241" y="946.7764">copy message origin time</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="163" x="421" y="925.6377"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="143" x="431" y="946.7764">copy message payload</text><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="564" x="32" y="979.6064"/><path d="M934.5,779.0703 L934.5,804.2031 A0,0 0 0 0 934.5,804.2031 L1254.5,804.2031 A0,0 0 0 0 1254.5,804.2031 L1254.5,797.0703 L1274.5,791.6367 L1254.5,789.0703 L1254.5,789.0703 L1244.5,779.0703 L934.5,779.0703 A0,0 0 0 0 934.5,779.0703 " fill="#FBFB77" filter="url(#f16b2sm6ci0efs)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1244.5,779.0703 L1244.5,789.0703 L1254.5,789.0703 L1244.5,779.0703 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="299" x="940.5" y="796.1372">Can be optimized in case all flags are disabled.</text><rect fill="#FEFECE" filter="url(#f16b2sm6ci0efs)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="187" x="1274.5" y="774.6523"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="1284.5" y="795.791">calculate message latency</text><rect fill="#000000" filter="url(#f16b2sm6ci0efs)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1479" x="616" y="828.6211"/><rect fill="#EEEEEE" filter="url(#f16b2sm6ci0efs)" height="47.9375" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="252" x="628" y="944.9893"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 1.0,2.0;" x1="628" x2="638" y1="961.9736" y2="961.9736"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="232" x="638" y="965.6279">URT_CFG_PUBSUB_PROFILING == true</text><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 1.0,2.0;" x1="870" x2="880" y1="961.9736" y2="961.9736"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="73" x="638" y="980.0967">accumulate</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="84" x="715" y="980.0967">sumLatencies</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="33" x="803" y="980.0967">value</text><rect fill="#EEEEEE" filter="url(#f16b2sm6ci0efs)" height="220.9219" style="stroke: #000000; stroke-width: 2.0;" width="888" x="908" y="845.4229"/><path d="M1544,846.4229 L1544,854.7197 L1534,864.7197 L908,864.7197 " fill="none" style="stroke: #000000; 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 @startuml
 
 title **µRtWare**\nurtFrtSubscriberFetchNextMessage()\n
@@ -110,7 +110,7 @@ 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
