AMiRo-OS

<?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="1015px" preserveAspectRatio="none" style="width:1657px;height:1015px;" version="1.1" viewBox="0 0 1657 1015" width="1657px" zoomAndPan="magnify"><defs><filter height="300%" id="f12r66ntz96gh2" 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="783" y="26.708">µRtWare</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="240" x="707.5" y="47.6611">urtSubscriberUnsubscribe()</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="0" x="830.5" y="68.6143"/><path d="M1002.75,72.8594 L1002.75,128.2578 A0,0 0 0 0 1002.75,128.2578 L1271.75,128.2578 A0,0 0 0 0 1271.75,128.2578 L1271.75,104.5586 L1291.75,100.5586 L1271.75,96.5586 L1271.75,82.8594 L1261.75,72.8594 L1002.75,72.8594 A0,0 0 0 0 1002.75,72.8594 " fill="#FBFB77" filter="url(#f12r66ntz96gh2)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1261.75,72.8594 L1261.75,82.8594 L1271.75,82.8594 L1261.75,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1002.75" x2="1013.25" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1017.25" y="89.4263"/><text fill="#000000" font-family="monospace" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="80" x="1017.25" y="89.4263">subscriber</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="152" x="1105.25" y="89.4263">: urt_subscriber_t*</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="1261.25" y="89.4263"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="1261.25" x2="1271.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="223" x="1008.75" y="105.0591">The subscriber to be unsubscribed.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="1008.75" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="1088.75" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="1120.75" y="120.1919">.</text><ellipse cx="1301.75" cy="100.5586" fill="#000000" filter="url(#f12r66ntz96gh2)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="1239.25,148.2578,1364.25,148.2578,1376.25,160.2578,1364.25,172.2578,1239.25,172.2578,1227.25,160.2578,1239.25,148.2578" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="1239.25" y="164.0659">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="1207.25" y="157.6636">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1376.25" y="157.6636">no</text><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="971.5,182.2578,1078.5,182.2578,1090.5,194.2578,1078.5,206.2578,971.5,206.2578,959.5,194.2578,971.5,182.2578" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="107" x="971.5" y="198.0659">Is HRT subscriber?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="939.5" y="191.6636">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1090.5" y="191.6636">no</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="616" y="216.2578"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="626" y="237.3965">lock topic</text><rect fill="#000000" filter="url(#f12r66ntz96gh2)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1307" x="10" y="270.2266"/><path d="M22,489.8081 L22,514.9409 A0,0 0 0 0 22,514.9409 L323,514.9409 A0,0 0 0 0 323,514.9409 L323,507.8081 L343,502.3745 L323,499.8081 L323,499.8081 L313,489.8081 L22,489.8081 A0,0 0 0 0 22,489.8081 " fill="#FBFB77" filter="url(#f12r66ntz96gh2)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M313,489.8081 L313,499.8081 L323,499.8081 L313,489.8081 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="280" x="28" y="506.875">Must be within lock because of HRT counter.</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="124" x="343" y="485.3901"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="104" x="353" y="506.5288">unregister event</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="214" x="477" y="485.3901"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="194" x="487" y="506.5288">decrement topic's HRT counter</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="312" x="714" y="402.5034"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="292" x="724" y="423.6421">remove self from topic's list of HRT subscribers</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="218" x="761" y="519.8745"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="198" x="771" y="541.0132">update QoS rate timer (@topic)</text><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="786,471.4722,954,471.4722,966,483.4722,954,495.4722,786,495.4722,774,483.4722,786,471.4722" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="874" y="505.6826">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="168" x="786" y="487.2803">Was most critical subscriber?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="966" y="480.8779">no</text><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="870,573.8433,882,585.8433,870,597.8433,858,585.8433,870,573.8433" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="106" x="1119.5" y="351.937"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="86" x="1129.5" y="373.0757">lock message</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="169" x="1088" y="420.9058"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="149" x="1098" y="442.0444">decrement HRT counter</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="122" x="1111.5" y="489.8745"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="102" x="1121.5" y="511.0132">unlock message</text><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="1098,296.2266,1247,296.2266,1259,308.2266,1247,320.2266,1098,320.2266,1086,308.2266,1098,296.2266" style="stroke: #A80036; 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stroke-width: 1.5;"/><rect fill="#000000" filter="url(#f12r66ntz96gh2)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1307" x="10" y="724.812"/><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="96" x="608" y="750.812"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="76" x="618" y="771.9507">unlock topic</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="124" x="1337" y="216.2578"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="104" x="1347" y="237.3965">unregister event</text><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="1025,790.7808,1037,802.7808,1025,814.7808,1013,802.7808,1025,790.7808" style="stroke: #A80036; stroke-width: 1.5;"/><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="115" x="967.5" y="834.7808"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="95" x="977.5" y="855.9194">reset members</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="154" x="948" y="888.7495"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="39" x="958" y="909.8882">return</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="91" x="1001" y="909.8882">URT_STATUS_OK</text><rect fill="#FEFECE" filter="url(#f12r66ntz96gh2)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="175" x="1471" y="182.2578"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="39" x="1481" y="203.3965">return</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="112" x="1524" y="203.3965">URT_STATUS_ERROR</text><polygon fill="#FEFECE" filter="url(#f12r66ntz96gh2)" points="1301.75,928.7183,1313.75,940.7183,1301.75,952.7183,1289.75,940.7183,1301.75,928.7183" style="stroke: #A80036; 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@startuml

title **µRtWare**\nurtSubscriberUnsubscribe()\n

start

note

  - - ""**subscriber** : urt_subscriber_t*"" - -

  The subscriber to be unsubscribed.

  Must not be ""NULL"".

end note

if (Associated to a topic?) then (yes)

  if (Is HRT subscriber?) then (yes)

    :lock topic;

    fork

      :unregister event;

      note: Must be within lock because of HRT counter.

    fork again

      :decrement topic's HRT counter;

    fork again

      :remove self from topic's list of HRT subscribers;

      if (Was most critical subscriber?) then (yes)

        :update QoS rate timer (@topic);

      else (no)

      endif

    fork again

      while (Unfetched messages left?) is (yes)

        :lock message;

        :decrement HRT counter;

        :unlock message;

      endwhile (no)

      if (At least one HRT counter became 0?) then (yes)

        :signal topic's condition variable;

      else (no)

      endif

    endfork

    :unlock topic;

  else (no)

    :unregister event;

  endif

  :reset members;

  :return ""URT_STATUS_OK"";

else (no)

  :return ""URT_STATUS_ERROR"";

endif

stop

note

  - - **return** ""urt_status_t"" - -

  Returns ""URT_STATUS_ERROR"" if the subscriber was not associated to any topic.

end note

@enduml

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

Operating System: Linux

Default Encoding: UTF-8

Language: en

Country: US

--></g></svg>