urtware / doc / statediagrams / subscriber / receive.svg @ 6ebd2388
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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="1377px" preserveAspectRatio="none" style="width:1968px;height:1377px;" version="1.1" viewBox="0 0 1968 1377" width="1968px" zoomAndPan="magnify"><defs><filter height="300%" id="f13ufdpbbhx79" 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="938.5" y="26.708">µRtWare</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="256" x="855" y="47.6611">urtSubscriberFetchMessage()</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="0" x="986" y="68.6143"/><path d="M1046,72.8594 L1046,97.9922 A0,0 0 0 0 1046,97.9922 L1161,97.9922 A0,0 0 0 0 1161,97.9922 L1161,90.8594 L1181,85.4258 L1161,82.8594 L1161,82.8594 L1151,72.8594 L1046,72.8594 A0,0 0 0 0 1046,72.8594 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1151,72.8594 L1151,82.8594 L1161,82.8594 L1151,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="94" x="1052" y="89.9263">event received</text><ellipse cx="1191" cy="85.4258" fill="#000000" filter="url(#f13ufdpbbhx79)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><path d="M748,122.4102 L748,147.543 A0,0 0 0 0 748,147.543 L1131,147.543 A0,0 0 0 0 1131,147.543 L1131,140.4102 L1151,134.9766 L1131,132.4102 L1131,132.4102 L1121,122.4102 L748,122.4102 A0,0 0 0 0 748,122.4102 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1121,122.4102 L1121,132.4102 L1131,132.4102 L1121,122.4102 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="362" x="754" y="139.4771">The message list is part of the topic and must be locked.</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="1151" y="117.9922"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="1161" y="139.1309">lock topic</text><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="1137.5,171.9609,1244.5,171.9609,1256.5,183.9609,1244.5,195.9609,1137.5,195.9609,1125.5,183.9609,1137.5,171.9609" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="107" x="1137.5" y="187.769">Is HRT subscriber?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1105.5" y="181.3667">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1256.5" y="181.3667">no</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="137" x="595" y="205.9609"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="117" x="605" y="227.0996">lock next message</text><rect fill="#FFFFFF" filter="url(#f13ufdpbbhx79)" height="471.2388" style="stroke: #000000; stroke-width: 2.0;" width="1304" x="10" y="306.4419"/><path d="M124,307.4419 L124,315.7388 L114,325.7388 L10,325.7388 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="104" x="13" y="320.437">iterate to latest</text><path d="M372,347.1567 L372,372.2896 A0,0 0 0 0 372,372.2896 L575,372.2896 A0,0 0 0 0 575,372.2896 L575,365.1567 L595,359.7231 L575,357.1567 L575,357.1567 L565,347.1567 L372,347.1567 A0,0 0 0 0 372,347.1567 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M565,347.1567 L565,357.1567 L575,357.1567 L565,347.1567 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="182" x="378" y="364.2236">locked two messaged ahead</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="137" x="595" y="342.7388"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="117" x="605" y="363.8774">lock next message</text><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1239" x="44" y="457.5122"/><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1046" x="58" y="483.5122"/><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="304" x="72" y="509.5122"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="284" x="82" y="530.6509">decremenet HRT counter of current message</text><path d="M404,513.9302 L404,539.063 A0,0 0 0 0 404,539.063 L893,539.063 A0,0 0 0 0 893,539.063 L893,531.9302 L913,526.4966 L893,523.9302 L893,523.9302 L883,513.9302 L404,513.9302 A0,0 0 0 0 404,513.9302 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M883,513.9302 L883,523.9302 L893,523.9302 L883,513.9302 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="468" x="410" y="530.9971">no lock required since this timer is only accessed when the topic is locked</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="177" x="913" y="509.5122"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="157" x="923" y="530.6509">update QoS timer (delay)</text><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1046" x="58" y="563.481"/><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="172" x="495" y="600.3364"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="152" x="505" y="621.4751">unlock current message</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="137" x="1132" y="543.9966"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="117" x="1142" y="565.1353">lock next message</text><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1239" x="44" y="654.3052"/><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="509.5,396.7075,817.5,396.7075,829.5,408.7075,817.5,420.7075,509.5,420.7075,497.5,408.7075,509.5,396.7075" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="667.5" y="430.918">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="308" x="509.5" y="412.5156">Timestamp of next message is younger than current?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="483.5" y="406.1133">no</text><path d="M304,717.415 L304,757.6807 A0,0 0 0 0 304,757.6807 L567,757.6807 A0,0 0 0 0 567,757.6807 L567,741.5479 L587,737.5479 L567,733.5479 L567,727.415 L557,717.415 L304,717.415 A0,0 0 0 0 304,717.415 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M557,717.415 L557,727.415 L567,727.415 L557,717.415 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="201" x="310" y="734.4819">one message ahead still locked</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="242" x="310" y="749.6147">but HRT counter not yet decremented</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="153" x="587" y="720.5635"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="133" x="597" y="741.7021">unlock next message</text><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="577,259.9297,750,259.9297,762,271.9297,750,283.9297,577,283.9297,565,271.9297,577,259.9297" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="32" x="667.5" y="294.1401">latest</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="173" x="577" y="275.7378">Fetch next or latest message?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="24" x="762" y="269.3354">next</text><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="663.5,797.6807,675.5,809.6807,663.5,821.6807,651.5,809.6807,663.5,797.6807" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1038" x="144.5" y="856.6807"/><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="296" x="158.5" y="882.6807"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="276" x="168.5" y="903.8193">decrement HRT counter of current message</text><path d="M482.5,887.0986 L482.5,912.2314 A0,0 0 0 0 482.5,912.2314 L971.5,912.2314 A0,0 0 0 0 971.5,912.2314 L971.5,905.0986 L991.5,899.665 L971.5,897.0986 L971.5,897.0986 L961.5,887.0986 L482.5,887.0986 A0,0 0 0 0 482.5,887.0986 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M961.5,887.0986 L961.5,897.0986 L971.5,897.0986 L961.5,887.0986 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="468" x="488.5" y="904.1655">no lock required since this timer is only accessed when the topic is locked</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="177" x="991.5" y="882.6807"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="157" x="1001.5" y="903.8193">update QoS timer (delay)</text><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1038" x="144.5" y="936.6494"/><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="166" x="1635.5" y="205.9609"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="146" x="1645.5" y="227.0996">lock last read message</text><rect fill="#FFFFFF" filter="url(#f13ufdpbbhx79)" height="271.2656" style="stroke: #000000; stroke-width: 2.0;" width="406" x="1526" y="306.4419"/><path d="M1710,307.4419 L1710,315.7388 L1700,325.7388 L1526,325.7388 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="174" x="1529" y="320.437">find oldest valid message</text><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="365" x="1536" y="399.7388"/><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="172" x="1550" y="425.7388"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="152" x="1560" y="446.8774">unlock current message</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="137" x="1750" y="425.7388"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="117" x="1760" y="446.8774">lock next message</text><rect fill="#000000" filter="url(#f13ufdpbbhx79)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="365" x="1536" y="479.7075"/><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="1718.5,342.7388,1730.5,354.7388,1718.5,366.7388,1706.5,354.7388,1718.5,342.7388" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="1573.5,533.7075,1863.5,533.7075,1875.5,545.7075,1863.5,557.7075,1573.5,557.7075,1561.5,545.7075,1573.5,533.7075" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="290" x="1573.5" y="549.5156">while timestamp of next is younger than of current</text><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="1632.5,259.9297,1804.5,259.9297,1816.5,271.9297,1804.5,283.9297,1632.5,283.9297,1620.5,271.9297,1632.5,259.9297" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1722.5" y="294.1401">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="172" x="1632.5" y="275.7378">Timestamp equals local copy?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1816.5" y="269.3354">yes</text><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="1718.5,597.9653,1730.5,609.9653,1718.5,621.9653,1706.5,609.9653,1718.5,597.9653" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FFFFFF" filter="url(#f13ufdpbbhx79)" height="335.6055" style="stroke: #000000; stroke-width: 2.0;" width="563" x="1366" y="703.4775"/><path d="M1480,704.4775 L1480,712.7744 L1470,722.7744 L1366,722.7744 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="104" x="1369" y="717.4727">iterate to latest</text><path d="M1428,744.1924 L1428,769.3252 A0,0 0 0 0 1428,769.3252 L1630,769.3252 A0,0 0 0 0 1630,769.3252 L1630,762.1924 L1650,756.7588 L1630,754.1924 L1630,754.1924 L1620,744.1924 L1428,744.1924 A0,0 0 0 0 1428,744.1924 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1620,744.1924 L1620,754.1924 L1630,754.1924 L1620,744.1924 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="181" x="1434" y="761.2593">locked two messages ahead</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; 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stroke-width: 1.0;" width="365" x="1536" y="945.1143"/><path d="M1400,975.5322 L1400,1000.665 A0,0 0 0 0 1400,1000.665 L1622,1000.665 A0,0 0 0 0 1622,1000.665 L1622,993.5322 L1642,988.0986 L1622,985.5322 L1622,985.5322 L1612,975.5322 L1400,975.5322 A0,0 0 0 0 1400,975.5322 " fill="#FBFB77" filter="url(#f13ufdpbbhx79)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1612,975.5322 L1612,985.5322 L1622,985.5322 L1612,975.5322 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="201" x="1406" y="992.5991">one message ahead still locked</text><rect fill="#FEFECE" filter="url(#f13ufdpbbhx79)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="153" x="1642" y="971.1143"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="133" x="1652" y="992.2529">unlock next message</text><polygon fill="#FEFECE" filter="url(#f13ufdpbbhx79)" points="1564.5,804.3408,1872.5,804.3408,1884.5,816.3408,1872.5,828.3408,1564.5,828.3408,1552.5,816.3408,1564.5,804.3408" style="stroke: #A80036; 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|---|---|
| 2 |
@startuml |
| 3 |
|
| 4 |
title **µRtWare**\nurtSubscriberFetchMessage()\n |
| 5 |
|
| 6 |
|
| 7 |
|
| 8 |
start |
| 9 |
note |
| 10 |
event received |
| 11 |
endnote |
| 12 |
:lock topic; |
| 13 |
note |
| 14 |
The message list is part of the topic and must be locked. |
| 15 |
endnote |
| 16 |
if (Is HRT subscriber?) then (yes) |
| 17 |
:lock next message; |
| 18 |
if (Fetch next or latest message?) then (next) |
| 19 |
else (latest) |
| 20 |
partition "iterate to latest" {
|
| 21 |
:lock next message; |
| 22 |
note |
| 23 |
locked two messaged ahead |
| 24 |
endnote |
| 25 |
while (Timestamp of next message is younger than current?) is (yes) |
| 26 |
fork |
| 27 |
fork |
| 28 |
:decremenet HRT counter of current message; |
| 29 |
fork again |
| 30 |
:update QoS timer (delay); |
| 31 |
note |
| 32 |
no lock required since this timer is only accessed when the topic is locked |
| 33 |
endnote |
| 34 |
endfork |
| 35 |
:unlock current message; |
| 36 |
fork again |
| 37 |
:lock next message; |
| 38 |
endfork |
| 39 |
endwhile (no) |
| 40 |
:unlock next message; |
| 41 |
note |
| 42 |
one message ahead still locked |
| 43 |
but HRT counter not yet decremented |
| 44 |
endnote |
| 45 |
} |
| 46 |
endif |
| 47 |
fork |
| 48 |
:decrement HRT counter of current message; |
| 49 |
fork again |
| 50 |
:update QoS timer (delay); |
| 51 |
note |
| 52 |
no lock required since this timer is only accessed when the topic is locked |
| 53 |
endnote |
| 54 |
endfork |
| 55 |
else (no) |
| 56 |
:lock last read message; |
| 57 |
if (Timestamp equals local copy?) then (yes) |
| 58 |
else (no) |
| 59 |
partition "find oldest valid message" {
|
| 60 |
repeat |
| 61 |
fork |
| 62 |
:unlock current message; |
| 63 |
fork again |
| 64 |
:lock next message; |
| 65 |
forkend |
| 66 |
repeat while (while timestamp of next is younger than of current) |
| 67 |
} |
| 68 |
endif |
| 69 |
if (Fetch next or latest message?) then (next) |
| 70 |
else (latest) |
| 71 |
partition "iterate to latest" {
|
| 72 |
:lock next message; |
| 73 |
note |
| 74 |
locked two messages ahead |
| 75 |
endnote |
| 76 |
while (Timestamp of next message is younger then current?) is (yes) |
| 77 |
fork |
| 78 |
:unlock current message; |
| 79 |
fork again |
| 80 |
:lock next message; |
| 81 |
endfork |
| 82 |
:unlock next message; |
| 83 |
note |
| 84 |
one message ahead still locked |
| 85 |
endnote |
| 86 |
endwhile (no) |
| 87 |
} |
| 88 |
endif |
| 89 |
endif |
| 90 |
fork |
| 91 |
:set pointer to last message read to locked message; |
| 92 |
fork again |
| 93 |
:copy timestamp of message; |
| 94 |
endfork |
| 95 |
:unlock message; |
| 96 |
:unlock topic; |
| 97 |
stop |
| 98 |
|
| 99 |
@enduml |
| 100 |
|
| 101 |
PlantUML version 1.2018.11(Sat Sep 22 18:43:53 CEST 2018) |
| 102 |
(GPL source distribution) |
| 103 |
Java Runtime: OpenJDK Runtime Environment |
| 104 |
JVM: OpenJDK 64-Bit Server VM |
| 105 |
Java Version: 1.8.0_181-8u181-b13-0ubuntu0.16.04.1-b13 |
| 106 |
Operating System: Linux |
| 107 |
OS Version: 4.15.0-36-generic |
| 108 |
Default Encoding: UTF-8 |
| 109 |
Language: en |
| 110 |
Country: US |
| 111 |
--></g></svg> |