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="1004px" preserveAspectRatio="none" style="width:1281px;height:1004px;" version="1.1" viewBox="0 0 1281 1004" width="1281px" zoomAndPan="magnify"><defs><filter height="300%" id="f1mssqfvhqau1e" 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="595" y="26.708">µRtWare</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="335" x="472" y="47.6611">urtSrtSubscriberFetchLatestMessage()</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="0" x="642.5" y="68.6143"/><path d="M631,72.8594 L631,304.7188 L1119,304.7188 L1119,82.8594 L1109,72.8594 L631,72.8594 " fill="#FBFB77" filter="url(#f1mssqfvhqau1e)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M1109,72.8594 L1109,82.8594 L1119,82.8594 L1109,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="631" x2="762.5" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="766.5" y="89.4263"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="78" x="766.5" y="89.4263">subscriber</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="135" x="848.5" y="89.4263">: urt_srtsubscriber_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="987.5" x2="1119" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="312" x="637" y="105.0591">The SRT subscriber that shall fetch the message.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="637" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="717" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="749" y="120.1919">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="631" x2="819" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="823" y="134.8247"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="59" x="823" y="134.8247">payload</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="41" x="886" y="134.8247">: void*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="931" x2="1119" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="238" x="637" 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="637" y="165.5903">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="687" y="165.5903">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="195" x="723" y="165.5903">for messages without payload.</text><line style="stroke: #A80036; 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stroke-width: 1.0;" x1="950.5" x2="1119" y1="206.4883" y2="206.4883"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="267" x="637" 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="637" y="241.2544">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="687" y="241.2544">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="719" y="241.2544">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="631" x2="1119" y1="249.3203" y2="249.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="631" x2="1119" y1="251.3203" y2="251.3203"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="631" x2="804" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="808" y="265.8872"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="45" x="808" y="265.8872">return</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="85" x="857" y="265.8872">: urt_status_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="946" x2="1119" y1="261.8867" y2="261.8867"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="637" y="281.52">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="104" x="690" y="281.52">URT_STATUS_OK</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="75" x="798" y="281.52">on success.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="49" x="637" y="296.6528">Returns</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="128" x="690" y="296.6528">URT_STATUS_ERROR</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="282" x="822" y="296.6528">if the subscriber is not associated to a topic.</text><ellipse cx="875" cy="334.7188" fill="#000000" filter="url(#f1mssqfvhqau1e)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f1mssqfvhqau1e)" points="812.5,364.7188,937.5,364.7188,949.5,376.7188,937.5,388.7188,812.5,388.7188,800.5,376.7188,812.5,364.7188" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="125" x="812.5" y="380.5269">Associated to a topic?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="780.5" y="374.1245">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="949.5" y="374.1245">no</text><rect fill="#FEFECE" filter="url(#f1mssqfvhqau1e)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="455" y="398.7188"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="60" x="465" y="419.8574">lock topic</text><rect fill="#FFFFFF" filter="url(#f1mssqfvhqau1e)" height="213.9448" style="stroke: #000000; stroke-width: 2.0;" width="323" x="332" y="443.4893"/><path d="M477,444.4893 L477,452.7861 L467,462.7861 L332,462.7861 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="135" x="335" y="457.4844">find latest message</text><rect fill="#FEFECE" filter="url(#f1mssqfvhqau1e)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="185" x="402.5" y="479.7861"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="165" x="412.5" y="500.9248">access last read message</text><rect fill="#FEFECE" filter="url(#f1mssqfvhqau1e)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="181" x="404.5" y="589.4653"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="161" x="414.5" y="610.604">proceed to next message</text><polygon fill="#FEFECE" filter="url(#f1mssqfvhqau1e)" points="378,533.7549,612,533.7549,624,545.7549,612,557.7549,378,557.7549,366,545.7549,378,533.7549" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="499" y="567.9653">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="234" x="378" y="549.563">Timestamp of next message is younger?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="352" y="543.1606">no</text><rect fill="#FFFFFF" filter="url(#f1mssqfvhqau1e)" height="226.668" style="stroke: #000000; stroke-width: 2.0;" width="988" x="10" y="668.2358"/><path d="M123,669.2358 L123,677.5327 L113,687.5327 L10,687.5327 " fill="none" style="stroke: #000000; stroke-width: 2.0;"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacingAndGlyphs" textLength="103" x="13" y="682.231">fetch message</text><rect fill="#000000" filter="url(#f1mssqfvhqau1e)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="968" x="20" y="704.5327"/><rect fill="#FEFECE" filter="url(#f1mssqfvhqau1e)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; 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    partition "find latest message" {

    :access last read message;

    while (Timestamp of next message is younger?) is (yes)

      :proceed to next message;

    endwhile (no)

  }

    partition "fetch message" {

    fork

      :update message pointer;

    fork again

        :copy timestamp of message;

    fork again

      :copy message payload;

    fork again

      if (Optional output argument ""latency"" given?) then (yes)

        :set ""latency"" value (now - message origin time);

      else (no)

      endif

    endfork

  }