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/publisher/urtPublisherPublish.svg b/doc/activitydiagrams/publisher/urtPublisherPublish.svg
index bd284dd..5089693 100644
--- a/doc/activitydiagrams/publisher/urtPublisherPublish.svg
+++ b/doc/activitydiagrams/publisher/urtPublisherPublish.svg
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="1255px" preserveAspectRatio="none" style="width:2678px;height:1255px;" version="1.1" viewBox="0 0 2678 1255" width="2678px" zoomAndPan="magnify"><defs><filter height="300%" id="f52skes7don2n" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.0"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.0" dy="4.0" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><text fill="#000000" font-family="sans-serif" font-size="18" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="89" x="1293.5" y="26.708">µRtWare</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="183" x="1246.5" y="47.6611">urtPublisherPublish()</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="0" x="1341" y="68.6143"/><path d="M351,72.8594 L351,264.4531 A0,0 0 0 0 351,264.4531 L736,264.4531 A0,0 0 0 0 736,264.4531 L736,172.6563 L756,168.6563 L736,164.6563 L736,82.8594 L726,72.8594 L351,72.8594 A0,0 0 0 0 351,72.8594 " fill="#FBFB77" filter="url(#f52skes7don2n)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M726,72.8594 L726,82.8594 L736,82.8594 L726,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="427.5" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="431.5" y="89.4263"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="72" x="431.5" y="89.4263">publisher</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="144" x="511.5" y="89.4263">: urt_publisher_t*</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="659.5" y="89.4263"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="659.5" x2="736" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="197" x="357" y="105.0591">Pointer to the publisher to use.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="357" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="437" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="469" y="120.1919">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="479.5" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="483.5" y="134.8247"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="56" x="483.5" y="134.8247">payload</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="56" x="547.5" y="134.8247">: void*</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="607.5" y="134.8247"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="607.5" x2="736" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="226" x="357" y="150.4575">Pointer to the data to be published.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="357" y="165.5903">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="407" y="165.5903">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="195" x="443" y="165.5903">for messages without payload.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="499.5" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="503.5" y="180.2231"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="8" x="503.5" y="180.2231">n</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="64" x="519.5" y="180.2231">: size_t</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="587.5" y="180.2231"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="587.5" x2="736" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="180" x="357" y="195.856">Size of the payload in bytes.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="475.5" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="479.5" y="210.4888"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="8" x="479.5" y="210.4888">t</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="112" x="495.5" y="210.4888">: urt_osTime_t</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="611.5" y="210.4888"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="611.5" x2="736" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="246" x="357" y="226.1216">Timestamp to be set for the message.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="455.5" y1="236.7539" y2="236.7539"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="459.5" y="240.7544"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="56" x="459.5" y="240.7544">timeout</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="523.5" y="240.7544">: urt_delay_t</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="631.5" y="240.7544"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="631.5" x2="736" y1="236.7539" y2="236.7539"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="364" x="357" y="256.3872">Timeout delay in case the message cannot be published.</text><ellipse cx="766" cy="168.6563" fill="#000000" filter="url(#f52skes7don2n)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="726" y="284.4531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="736" y="305.5918">lock topic</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="137" x="697.5" y="338.4219"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="117" x="707.5" y="359.5605">lock next message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="122" x="705" y="448.1011"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="102" x="715" y="469.2397">unlock message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="524" x="504" y="502.0698"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="504" x="514" y="523.2085">wait for topic's condition variable (using topic's mutex) to be signaled or timeout</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="106" x="713" y="556.0386"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="86" x="723" y="577.1772">lock message</text><polygon fill="#FEFECE" filter="url(#f52skes7don2n)" points="626,392.3906,906,392.3906,918,404.3906,906,416.3906,626,416.3906,614,404.3906,626,392.3906" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="770" y="426.6011">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="280" x="626" y="408.1987">HRT consumers left for the message or timeout?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="600" y="401.7964">no</text><polygon fill="#FEFECE" filter="url(#f52skes7don2n)" points="713,632.0073,819,632.0073,831,644.0073,819,656.0073,713,656.0073,701,644.0073,713,632.0073" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="106" x="713" y="647.8154">Timeout occurred?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="681" y="641.4131">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="831" y="641.4131">no</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="122" x="36.5" y="666.0073"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="102" x="46.5" y="687.146">unlock message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="49.5" y="734.9761"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="59.5" y="756.1147">unlock topic</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="10" y="803.9448"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="39" x="20" y="825.0835">return</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="112" x="63" y="825.0835">URT_STATUS_ERROR</text><rect fill="#000000" filter="url(#f52skes7don2n)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2471" x="195" y="666.0073"/><rect fill="#000000" filter="url(#f52skes7don2n)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1014" x="207" y="756.812"/><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="251" x="219" y="782.812"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="231" x="229" y="803.9507">iterate topic pointer to this message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="180" x="498" y="782.812"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="160" x="508" y="803.9507">copy payload to message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="187" x="706" y="782.812"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="716" y="803.9507">set origin time of message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="286" x="921" y="782.812"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="266" x="931" y="803.9507">set number of HRT consumers (from topic)</text><rect fill="#000000" filter="url(#f52skes7don2n)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1014" x="207" y="836.7808"/><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="122" x="652" y="877.7808"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="102" x="662" y="898.9194">unlock message</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="398" x="1249" y="817.2964"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="378" x="1259" y="838.4351">set QoS rate timer (@topic) wrt. most critical HRT subscriber</text><path d="M1675,805.6323 L1675,830.7651 A0,0 0 0 0 1675,830.7651 L2170,830.7651 A0,0 0 0 0 2170,830.7651 L2170,823.6323 L2190,818.1987 L2170,815.6323 L2170,815.6323 L2160,805.6323 L1675,805.6323 A0,0 0 0 0 1675,805.6323 " fill="#FBFB77" filter="url(#f52skes7don2n)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M2160,805.6323 L2160,815.6323 L2170,815.6323 L2160,805.6323 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="474" x="1681" y="822.6992">No lock required since this timer is only accessed when the topic is locked.</text><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="434" x="2190" y="801.2144"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="414" x="2200" y="822.353">set QoS delay timer (@subscriber) wrt. origin time of the message</text><polygon fill="#FEFECE" filter="url(#f52skes7don2n)" points="2277,752.812,2537,752.812,2549,764.812,2537,776.812,2277,776.812,2265,764.812,2277,752.812" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="2411" y="787.0225">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="260" x="2277" y="768.6201">QoS delay timer (@subscriber) is not armed?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2549" y="762.2178">no</text><polygon fill="#FEFECE" filter="url(#f52skes7don2n)" points="2407,859.5854,2419,871.5854,2407,883.5854,2395,871.5854,2407,859.5854" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f52skes7don2n)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="208" x="2303" y="918.5854"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="188" x="2313" y="939.7241">iterate to next HRT subscriber</text><polygon fill="#FEFECE" filter="url(#f52skes7don2n)" points="2346,692.0073,2468,692.0073,2480,704.0073,2468,716.0073,2346,716.0073,2334,704.0073,2346,692.0073" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="2411" y="726.2178">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="122" x="2346" y="707.8154">HRT subscribers left?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2320" y="701.4131">no</text><rect fill="#000000" filter="url(#f52skes7don2n)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; 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stroke-width: 1.0;"/><path d="M726,72.8594 L726,82.8594 L736,82.8594 L726,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="427.5" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="431.5" y="89.4263"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="72" x="431.5" y="89.4263">publisher</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="144" x="511.5" y="89.4263">: urt_publisher_t*</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="659.5" y="89.4263"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="659.5" x2="736" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="197" x="357" y="105.0591">Pointer to the publisher to use.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="357" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="437" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="469" y="120.1919">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="479.5" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="483.5" y="134.8247"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="56" x="483.5" y="134.8247">payload</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="56" x="547.5" y="134.8247">: void*</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="607.5" y="134.8247"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="607.5" x2="736" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="226" x="357" y="150.4575">Pointer to the data to be published.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="357" y="165.5903">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="407" y="165.5903">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="195" x="443" y="165.5903">for messages without payload.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="499.5" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="503.5" y="180.2231"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="8" x="503.5" y="180.2231">n</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="64" x="519.5" y="180.2231">: size_t</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="587.5" y="180.2231"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="587.5" x2="736" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="180" x="357" y="195.856">Size of the payload in bytes.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="475.5" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="479.5" y="210.4888"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="8" x="479.5" y="210.4888">t</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="112" x="495.5" y="210.4888">: urt_osTime_t</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="611.5" y="210.4888"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="611.5" x2="736" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="246" x="357" y="226.1216">Timestamp to be set for the message.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="351" x2="455.5" y1="236.7539" y2="236.7539"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="459.5" y="240.7544"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="56" x="459.5" y="240.7544">timeout</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="523.5" y="240.7544">: urt_delay_t</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="631.5" y="240.7544"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="631.5" x2="736" y1="236.7539" y2="236.7539"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="364" x="357" y="256.3872">Timeout delay in case the message cannot be published.</text><ellipse cx="766" cy="168.6563" fill="#000000" filter="url(#f1jy0wcjc0dc24)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="726" y="284.4531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="736" y="305.5918">lock topic</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="156" x="688" y="338.4219"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="136" x="698" y="359.5605">access next message</text><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="638,462.5151,894,462.5151,906,474.5151,894,486.5151,638,486.5151,626,474.5151,638,462.5151" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="256" x="638" y="478.3232">Message timestamp was modified?) the (yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="906" y="471.9209">no</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="171" x="496.75" y="496.5151"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="151" x="506.75" y="517.6538">iterate to next message</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="524" x="687.75" y="496.5151"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="504" x="697.75" y="517.6538">wait for topic's condition variable (using topic's mutex) to be signaled or timeout</text><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="766,536.4839,778,548.4839,766,560.4839,754,548.4839,766,536.4839" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="648,392.3906,884,392.3906,896,411.5977,884,430.8047,648,430.8047,636,411.5977,648,392.3906" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="770" y="441.0151">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="211" x="648" y="402.6011">HRT consumers left for the message</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="236" x="648" y="415.4058">or the message timestamp was modified</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="139" x="648" y="428.2104">and a timeout occurred?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="622" y="409.0034">no</text><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="713,602.4839,819,602.4839,831,614.4839,819,626.4839,713,626.4839,701,614.4839,713,602.4839" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="106" x="713" y="618.292">Timeout occurred?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="681" y="611.8896">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="831" y="611.8896">no</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="49.5" y="636.4839"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="59.5" y="657.6226">unlock topic</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="10" y="705.4526"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="39" x="20" y="726.5913">return</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="112" x="63" y="726.5913">URT_STATUS_ERROR</text><rect fill="#000000" filter="url(#f1jy0wcjc0dc24)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2471" x="195" y="636.4839"/><rect fill="#000000" filter="url(#f1jy0wcjc0dc24)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1014" x="207" y="761.7729"/><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="251" x="219" y="787.7729"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="231" x="229" y="808.9116">iterate topic pointer to this message</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="180" x="498" y="787.7729"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="160" x="508" y="808.9116">copy payload to message</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="187" x="706" y="787.7729"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="716" y="808.9116">set origin time of message</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="286" x="921" y="787.7729"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="266" x="931" y="808.9116">set number of HRT consumers (from topic)</text><rect fill="#000000" filter="url(#f1jy0wcjc0dc24)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1014" x="207" y="841.7417"/><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="398" x="1249" y="787.7729"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="378" x="1259" y="808.9116">set QoS rate timer (@topic) wrt. most critical HRT subscriber</text><path d="M1675,776.1089 L1675,801.2417 A0,0 0 0 0 1675,801.2417 L2170,801.2417 A0,0 0 0 0 2170,801.2417 L2170,794.1089 L2190,788.6753 L2170,786.1089 L2170,786.1089 L2160,776.1089 L1675,776.1089 A0,0 0 0 0 1675,776.1089 " fill="#FBFB77" filter="url(#f1jy0wcjc0dc24)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M2160,776.1089 L2160,786.1089 L2170,786.1089 L2160,776.1089 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="474" x="1681" y="793.1758">No lock required since this timer is only accessed when the topic is locked.</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="434" x="2190" y="771.6909"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="414" x="2200" y="792.8296">set QoS delay timer (@subscriber) wrt. origin time of the message</text><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="2277,723.2886,2537,723.2886,2549,735.2886,2537,747.2886,2277,747.2886,2265,735.2886,2277,723.2886" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="2411" y="757.499">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="260" x="2277" y="739.0967">QoS delay timer (@subscriber) is not armed?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2549" y="732.6943">no</text><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="2407,830.062,2419,842.062,2407,854.062,2395,842.062,2407,830.062" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="208" x="2303" y="874.062"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="188" x="2313" y="895.2007">iterate to next HRT subscriber</text><polygon fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" points="2346,662.4839,2468,662.4839,2480,674.4839,2468,686.4839,2346,686.4839,2334,674.4839,2346,662.4839" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="2411" y="696.6943">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="122" x="2346" y="678.292">HRT subscribers left?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="2320" y="671.8896">no</text><rect fill="#000000" filter="url(#f1jy0wcjc0dc24)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="2471" x="195" y="950.0308"/><path d="M1053,980.4487 L1053,1005.5815 A0,0 0 0 0 1053,1005.5815 L1389,1005.5815 A0,0 0 0 0 1389,1005.5815 L1389,998.4487 L1409,993.0151 L1389,990.4487 L1389,990.4487 L1379,980.4487 L1053,980.4487 A0,0 0 0 0 1053,980.4487 " fill="#FBFB77" filter="url(#f1jy0wcjc0dc24)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1379,980.4487 L1379,990.4487 L1389,990.4487 L1379,980.4487 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="315" x="1059" y="997.5156">Msut be within topic lock because of HRT counter.</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="79" x="1409" y="976.0308"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="59" x="1419" y="997.1694">fire event</text><rect fill="#FEFECE" filter="url(#f1jy0wcjc0dc24)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; 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 @startuml
 
 title **µRtWare**\nurtPublisherPublish()\n
@@ -32,14 +32,15 @@ end note
 
 
 :lock topic;
-:lock next message;
-while (HRT consumers left for the message or timeout?) is (yes)
-  :unlock message;
-  :wait for topic's condition variable (using topic's mutex) to be signaled or timeout;
-  :lock message;
+:access next message;
+while (HRT consumers left for the message\nor the message timestamp was modified\nand a timeout occurred?) is (yes)
+  if (Message timestamp was modified?) the (yes)
+    :iterate to next message;
+  else (no)
+    :wait for topic's condition variable (using topic's mutex) to be signaled or timeout;
+  endif
 endwhile (no)
 if (Timeout occurred?) then (yes)
-  :unlock message;
   :unlock topic;
   :return ""URT_STATUS_ERROR"";
 else (no)
@@ -53,7 +54,6 @@ else (no)
     fork again
       :set number of HRT consumers (from topic);
     endfork
-    :unlock message;
   fork again
     :set QoS rate timer (@topic) wrt. most critical HRT subscriber;
   fork again
