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urtware / doc / activitydiagrams / subscriber / nrtsubscriber / urtNrtSubscriberFetchLatestMessage.svg @ 17d978fe

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<?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="1355px" preserveAspectRatio="none" style="width:2576px;height:1355px;" version="1.1" viewBox="0 0 2576 1355" width="2576px" zoomAndPan="magnify"><defs><filter height="300%" id="f1cocy9zwa303s" 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="1242.5" y="26.708">µRtWare</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="338" x="1118" y="47.6611">urtNrtSubscriberFetchLatestMessage()</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="0" x="1290" y="68.6143"/><path d="M1423,72.8594 L1423,319.8516 L1975,319.8516 L1975,82.8594 L1965,72.8594 L1423,72.8594 " fill="#FBFB77" filter="url(#f1cocy9zwa303s)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1965,72.8594 L1965,82.8594 L1975,82.8594 L1965,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1586" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1590" y="89.4263"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="78" x="1590" y="89.4263">subscriber</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="136" x="1672" y="89.4263">: urt_nrtsubscriber_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1812" x2="1975" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="313" x="1429" 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="1429" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1509" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1541" y="120.1919">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1643" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1647" y="134.8247"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="59" x="1647" y="134.8247">payload</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="41" x="1710" y="134.8247">: void*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1755" x2="1975" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="238" x="1429" y="150.4575">Pointer where to copy the payload to.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="1429" y="165.5903">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1479" y="165.5903">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="195" x="1515" y="165.5903">for messages without payload.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1650" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1654" y="180.2231"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="41" x="1654" y="180.2231">bytes</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="45" x="1699" y="180.2231">: size_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1748" x2="1975" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="137" x="1429" y="195.856">Payload size in bytes.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1623.5" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1627.5" y="210.4888"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="53" x="1627.5" y="210.4888">latency</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="86" x="1684.5" y="210.4888">: urt_delay_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1774.5" x2="1975" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="267" x="1429" 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="1429" y="241.2544">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1479" y="241.2544">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1511" y="241.2544">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1975" y1="249.3203" y2="249.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1975" y1="251.3203" y2="251.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1423" x2="1628" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1632" y="265.8872"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="45" x="1632" y="265.8872">return</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="85" x="1681" y="265.8872">: urt_status_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="1770" x2="1975" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1429" y="281.52">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="1482" y="281.52">URT_STATUS_OK</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="75" x="1590" y="281.52">on success.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="1429" y="296.6528">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="192" x="1482" y="296.6528">URT_STATUS_FETCH_NOTOPIC</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="282" x="1678" 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="1429" y="311.7856">Retruns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="1482" y="311.7856">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="228" x="1694" y="311.7856">if there is no new message to fetch.</text><ellipse cx="1699" cy="349.8516" fill="#000000" filter="url(#f1cocy9zwa303s)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1cocy9zwa303s)" points="1636.5,379.8516,1761.5,379.8516,1773.5,391.8516,1761.5,403.8516,1636.5,403.8516,1624.5,391.8516,1636.5,379.8516" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="1636.5" y="395.6597">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1604.5" y="389.2573">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1773.5" y="389.2573">no</text><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="776" y="413.8516"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="786" y="434.9902">lock topic</text><rect fill="#FFFFFF" filter="url(#f1cocy9zwa303s)" height="348.8823" style="stroke: #000000; stroke-width: 2.0;" width="736" x="446.5" y="458.6221"/><path d="M591.5,459.6221 L591.5,467.9189 L581.5,477.9189 L446.5,477.9189 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="135" x="449.5" y="472.6172">find latest message</text><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="145" x="743.5" y="494.9189"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="44" x="753.5" y="516.0576">access</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="77" x="801.5" y="516.0576">lastMessage</text><rect fill="#000000" filter="url(#f1cocy9zwa303s)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="671" x="480.5" y="604.5981"/><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="573" y="630.5981"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="583" y="651.7368">proceed to next message</text><rect fill="#EEEEEE" filter="url(#f1cocy9zwa303s)" height="47.9375" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="338" x="494.5" y="699.5669"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 1.0,2.0;" x1="494.5" x2="547.5" y1="716.5513" y2="716.5513"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="232" x="547.5" y="720.2056">URT_CFG_PUBSUB_PROFILING == true</text><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 1.0,2.0;" x1="779.5" x2="832.5" y1="716.5513" y2="716.5513"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="318" x="504.5" y="734.6743">decrement counter of consumers left (@message)</text><rect fill="#EEEEEE" filter="url(#f1cocy9zwa303s)" height="47.9375" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="277" x="860.5" y="665.0825"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 1.0,2.0;" x1="860.5" x2="883" y1="682.0669" y2="682.0669"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="232" x="883" y="685.7212">URT_CFG_PUBSUB_PROFILING == true</text><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 1.0,2.0;" x1="1115" x2="1137.5" y1="682.0669" y2="682.0669"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="257" x="870.5" y="700.1899">increment counter of received messages</text><rect fill="#000000" filter="url(#f1cocy9zwa303s)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="671" x="480.5" y="767.5044"/><polygon fill="#FEFECE" filter="url(#f1cocy9zwa303s)" points="699,548.8877,933,548.8877,945,560.8877,933,572.8877,699,572.8877,687,560.8877,699,548.8877" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="820" y="583.0981">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="234" x="699" y="564.6958">Timestamp of next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="673" y="558.2935">no</text><polygon fill="#FEFECE" filter="url(#f1cocy9zwa303s)" points="730,827.5044,902,827.5044,914,839.5044,902,851.5044,730,851.5044,718,839.5044,730,827.5044" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="172" x="730" y="843.3125">Timestamp equals local copy?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="698" y="836.9102">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="914" y="836.9102">no</text><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="279" y="861.5044"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="289" y="882.6431">unlock topic</text><path d="M10,930.4731 L10,955.606 A0,0 0 0 0 10,955.606 L296,955.606 A0,0 0 0 0 296,955.606 L296,948.4731 L316,943.0396 L296,940.4731 L296,940.4731 L286,930.4731 L10,930.4731 A0,0 0 0 0 10,930.4731 " fill="#FBFB77" filter="url(#f1cocy9zwa303s)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M286,930.4731 L286,940.4731 L296,940.4731 L286,930.4731 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="16" y="947.54">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="208" x="69" y="947.54">URT_STATUS_FETCH_NOMESSAGE</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="277" y="947.54">.</text><ellipse cx="327" cy="943.0396" fill="#FFFFFF" filter="url(#f1cocy9zwa303s)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="327" cy="943.0396" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><rect fill="#000000" filter="url(#f1cocy9zwa303s)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1854" x="385" y="861.5044"/><rect fill="#FFFFFF" filter="url(#f1cocy9zwa303s)" height="142.2656" style="stroke: #000000; stroke-width: 2.0;" width="622" x="397" y="991.1929"/><path d="M510,992.1929 L510,1000.4897 L500,1010.4897 L397,1010.4897 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="103" x="400" y="1005.188">fetch message</text><rect fill="#000000" filter="url(#f1cocy9zwa303s)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="602" x="407" y="1027.4897"/><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="421" y="1053.4897"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="155" x="431" y="1074.6284">update message pointer</text><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="180" x="624" y="1053.4897"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="160" x="634" y="1074.6284">copy message origin time</text><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="163" x="832" y="1053.4897"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="143" x="842" y="1074.6284">copy message payload</text><rect fill="#000000" filter="url(#f1cocy9zwa303s)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="602" x="407" y="1107.4585"/><path d="M1208.5,891.9224 L1208.5,917.0552 A0,0 0 0 0 1208.5,917.0552 L1528.5,917.0552 A0,0 0 0 0 1528.5,917.0552 L1528.5,909.9224 L1548.5,904.4888 L1528.5,901.9224 L1528.5,901.9224 L1518.5,891.9224 L1208.5,891.9224 A0,0 0 0 0 1208.5,891.9224 " fill="#FBFB77" filter="url(#f1cocy9zwa303s)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1518.5,891.9224 L1518.5,901.9224 L1528.5,901.9224 L1518.5,891.9224 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="299" x="1214.5" y="908.9893">Can be optimized in case all flags are disabled.</text><rect fill="#FEFECE" filter="url(#f1cocy9zwa303s)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="187" x="1548.5" y="887.5044"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="1558.5" y="908.6431">calculate message latency</text><rect fill="#000000" filter="url(#f1cocy9zwa303s)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1180" x="1047" y="956.4731"/><rect fill="#EEEEEE" filter="url(#f1cocy9zwa303s)" height="47.9375" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="252" x="1061" y="1072.8413"/><line style="stroke: #A80036; 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2
@startuml
3

    
4
title **µRtWare**\nurtNrtSubscriberFetchLatestMessage()\n
5

    
6

    
7

    
8

    
9

    
10

    
11

    
12
note
13
  - - **subscriber** : urt_nrtsubscriber_t* - -
14
  The NRT subscriber that shall fetch the message.
15
  Must not be ""NULL"".
16
  - - **payload** : void* - -
17
  Pointer where to copy the payload to.
18
  May be ""NULL"" for messages without payload.
19
  - - **bytes** : size_t - -
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  Payload size in bytes.
21
  - - **latency** : urt_delay_t* - -
22
  The latency can be returned by reference.
23
  May be ""NULL"".
24
  ====
25
  - - **return** : urt_status_t - -
26
  Returns ""URT_STATUS_OK"" on success.
27
  Returns ""URT_STATUS_FETCH_NOTOPIC"" if the subscriber is not associated to a topic.
28
  Retruns ""URT_STATUS_FETCH_NOMESSAGE"" if there is no new message to fetch.
29
endnote
30

    
31

    
32
start
33
if (Associated to a topic?) then (yes)
34
  :lock topic;
35
    partition "find latest message" {
36
    :access ""lastMessage"";
37
    while (Timestamp of next message is younger?) is (yes)
38
      fork
39
        :proceed to next message;
40
        #EEEEEE:..//URT_CFG_PUBSUB_PROFILING == true//..\ndecrement counter of consumers left (@message);
41
      fork again
42
        #EEEEEE:..//URT_CFG_PUBSUB_PROFILING == true//..\nincrement counter of received messages;
43
      endfork
44
    endwhile (no)
45
  }
46
  if (Timestamp equals local copy?) then (yes)
47
    :unlock topic;
48
    stop
49
    note
50
      Returns ""URT_STATUS_FETCH_NOMESSAGE"".
51
    endnote
52
  else (no)
53
    fork
54
        partition "fetch message" {
55
    fork
56
      :update message pointer;
57
    fork again
58
      :copy message origin time;
59
    fork again
60
      :copy message payload;
61
    endfork
62
  }
63
    fork again
64
      :calculate message latency;
65
      note
66
        Can be optimized in case all flags are disabled.
67
      endnote
68
      fork
69
        #EEEEEE:..//URT_CFG_PUBSUB_PROFILING == true//..\naccumulate ""sumLatencies"" value;
70
      fork again
71
        partition "//URT_CFG_PUBSUB_PROFILING == true//" #EEEEEE {
72
          if (Latency is lower than ""minLatency""?) then (yes)
73
            #EEEEEE:update ""minLatency"" value;
74
          elseif (Latency is greater than ""maxLatency""?) then (yes)
75
            #EEEEEE:update ""maxLatency"" value;
76
          else (no)
77
          endif
78
        }
79
      fork again
80
        if (Optional ""latency"" output argument given?) then (yes)
81
          :set ""latency"" value;
82
        else (no)
83
        endif
84
      fork again
85
      endfork
86
    endfork
87
    :unlock topic;
88
    stop
89
    note
90
      Returns ""URT_STATUS_OK"".
91
    endnote
92
  endif
93
else (no)
94
  stop
95
  note
96
    Returns ""URT_STATUS_FETCH_NOTOPIC"".
97
  endnote
98
endif
99

    
100

    
101
@enduml
102

    
103
PlantUML version 1.2020.00(Sat Jan 11 13:30:53 CET 2020)
104
(GPL source distribution)
105
Java Runtime: OpenJDK Runtime Environment
106
JVM: OpenJDK 64-Bit Server VM
107
Java Version: 11.0.7+10-post-Ubuntu-2ubuntu218.04
108
Operating System: Linux
109
Default Encoding: UTF-8
110
Language: en
111
Country: US
112
--></g></svg>