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="983px" preserveAspectRatio="none" style="width:1463px;height:983px;" version="1.1" viewBox="0 0 1463 983" width="1463px" zoomAndPan="magnify"><defs><filter height="300%" id="f10elgj1fk1eyi" 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="686.25" y="26.708">µRtWare</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="181" x="640.25" y="47.6611">urtServiceDispatch()</text><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacingAndGlyphs" textLength="0" x="733.75" y="68.6143"/><path d="M581.25,72.8594 L581.25,274.4531 L901.25,274.4531 L901.25,82.8594 L891.25,72.8594 L581.25,72.8594 " fill="#FBFB77" filter="url(#f10elgj1fk1eyi)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M891.25,72.8594 L891.25,82.8594 L901.25,82.8594 L891.25,72.8594 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="581.25" x2="660.75" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="664.75" y="89.4263"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="52" x="664.75" y="89.4263">service</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="97" x="720.75" y="89.4263">: urt_service_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="821.75" x2="901.25" y1="85.4258" y2="85.4258"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="237" x="587.25" y="105.0591">The service to dispatch a request for.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="76" x="587.25" y="120.1919">Must not be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="667.25" y="120.1919">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="4" x="699.25" y="120.1919">.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="581.25" x2="685.25" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="689.25" y="134.8247"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="59" x="689.25" y="134.8247">payload</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="41" x="752.25" y="134.8247">: void*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="797.25" x2="901.25" y1="130.8242" y2="130.8242"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="272" x="587.25" y="150.4575">Pointer where to store the payload (if any).</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="587.25" y="165.5903">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="637.25" y="165.5903">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="213" x="673.25" y="165.5903">if the service expects no payload.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="581.25" x2="692.25" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="696.25" y="180.2231"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="41" x="696.25" y="180.2231">bytes</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="45" x="741.25" y="180.2231">: size_t</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="790.25" x2="901.25" y1="176.2227" y2="176.2227"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="180" x="587.25" y="195.856">Size of the payload in bytes.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="280" x="587.25" y="210.9888">Must be 0 if the service expects no payload.</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="581.25" x2="901.25" y1="219.0547" y2="219.0547"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="581.25" x2="901.25" y1="221.0547" y2="221.0547"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="581.25" x2="646.75" y1="231.6211" y2="231.6211"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="0" x="650.75" y="235.6216"/><text fill="#000000" font-family="sans-serif" font-size="13" font-weight="bold" lengthAdjust="spacingAndGlyphs" textLength="45" x="650.75" y="235.6216">return</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="132" x="699.75" y="235.6216">: urt_baserequest_t*</text><line style="stroke: #A80036; stroke-width: 1.0;" x1="835.75" x2="901.25" y1="231.6211" y2="231.6211"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="283" x="587.25" y="251.2544">Pointer to the request to be processed next.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="46" x="587.25" y="266.3872">May be</text><text fill="#000000" font-family="monospace" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="32" x="637.25" y="266.3872">NULL</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="209" x="673.25" y="266.3872">if there are no pending requests.</text><ellipse cx="741.25" cy="304.4531" fill="#000000" filter="url(#f10elgj1fk1eyi)" rx="10" ry="10" style="stroke: none; stroke-width: 1.0;"/><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="93" x="694.75" y="334.4531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="73" x="704.75" y="355.5918">lock service</text><path d="M17.75,434.1323 L17.75,489.5308 A0,0 0 0 0 17.75,489.5308 L578.75,489.5308 A0,0 0 0 0 578.75,489.5308 L578.75,465.8315 L598.75,461.8315 L578.75,457.8315 L578.75,444.1323 L568.75,434.1323 L17.75,434.1323 A0,0 0 0 0 17.75,434.1323 " fill="#FBFB77" filter="url(#f10elgj1fk1eyi)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M568.75,434.1323 L568.75,444.1323 L578.75,444.1323 L568.75,434.1323 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="414" x="23.75" y="451.1992">No need to lock the request because it is enqueued at this point.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="531" x="23.75" y="466.332">Enqueued requests must not be altered without the according service to be locked.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="540" x="23.75" y="481.4648">Since the service has been locked, no enqueued requests will be modified externally.</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="285" x="598.75" y="444.8472"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="134" x="608.75" y="465.9858">access first request (</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="126" x="742.75" y="465.9858">requestQueue_front</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="5" x="868.75" y="465.9858">)</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="251" x="615.75" y="509.5308"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="52" x="625.75" y="530.6694">proceed</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="126" x="681.75" y="530.6694">requestQueue_front</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="45" x="811.75" y="530.6694">pointer</text><rect fill="#000000" filter="url(#f10elgj1fk1eyi)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1417.5" x="10" y="563.4995"/><polygon fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" points="162,610.9019,447,610.9019,459,622.9019,447,634.9019,162,634.9019,150,622.9019,162,610.9019" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="243" x="162" y="626.71">This was the last request (pointer became</text><text fill="#000000" font-family="monospace" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="28" x="409" y="626.71">NULL</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="10" x="437" y="626.71">)?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="130" y="620.3076">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="459" y="620.3076">no</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="212" x="34" y="644.9019"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="20" x="44" y="666.0405">set</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="119" x="68" y="666.0405">requestQueue_back</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="13" x="191" y="666.0405">to</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="28" x="208" y="666.0405">NULL</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="223" x="357.5" y="644.9019"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="73" x="367.5" y="666.0405">set request</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="28" x="444.5" y="666.0405">next</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="62" x="476.5" y="666.0405">pointer to</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="28" x="542.5" y="666.0405">NULL</text><polygon fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" points="304.5,684.8706,316.5,696.8706,304.5,708.8706,292.5,696.8706,304.5,684.8706" style="stroke: #A80036; stroke-width: 1.5;"/><polygon fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" points="646,589.4995,824,589.4995,836,601.4995,824,613.4995,646,613.4995,634,601.4995,646,589.4995" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="739" y="623.71">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="178" x="646" y="605.3076">This was the last HRT request?</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="233" x="618.5" y="646.3042"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="20" x="628.5" y="667.4429">set</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="140" x="652.5" y="667.4429">requestQueue_hrtBack</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="13" x="796.5" y="667.4429">to</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="28" x="813.5" y="667.4429">NULL</text><polygon fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" points="890.5,589.4995,1092.5,589.4995,1104.5,601.4995,1092.5,613.4995,890.5,613.4995,878.5,601.4995,890.5,589.4995" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="995.5" y="623.71">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="202" x="890.5" y="605.3076">This was the last FRT/SRT request?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1104.5" y="598.9053">no</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="240" x="871.5" y="646.3042"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="20" x="881.5" y="667.4429">set</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="147" x="905.5" y="667.4429">requestQueue_fsrtBack</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="13" x="1056.5" y="667.4429">to</text><text fill="#000000" font-family="monospace" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="28" x="1073.5" y="667.4429">NULL</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="269" x="1146.5" y="642.9019"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="249" x="1156.5" y="664.0405">copy payload from request to argument</text><rect fill="#000000" filter="url(#f10elgj1fk1eyi)" height="6" rx="2.5" ry="2.5" style="stroke: #000000; stroke-width: 1.0;" width="1417.5" x="10" y="748.8706"/><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; stroke-width: 1.5;" width="109" x="686.75" y="774.8706"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="89" x="696.75" y="796.0093">unlock service</text><path d="M418.25,827.2729 L418.25,852.4058 A0,0 0 0 0 418.25,852.4058 L710.25,852.4058 A0,0 0 0 0 710.25,852.4058 L710.25,845.2729 L730.25,839.8394 L710.25,837.2729 L710.25,837.2729 L700.25,827.2729 L418.25,827.2729 A0,0 0 0 0 418.25,827.2729 " fill="#FBFB77" filter="url(#f10elgj1fk1eyi)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M700.25,827.2729 L700.25,837.2729 L710.25,837.2729 L700.25,827.2729 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="271" x="424.25" y="844.3398">Returns pointer to the dispatched request.</text><ellipse cx="741.25" cy="839.8394" fill="#FFFFFF" filter="url(#f10elgj1fk1eyi)" rx="11" ry="11" style="stroke: #000000; stroke-width: 1.0;"/><ellipse cx="741.25" cy="839.8394" fill="#000000" rx="6" ry="6" style="stroke: #7F7F7F; stroke-width: 1.0;"/><polygon fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" points="685.25,388.4219,797.25,388.4219,809.25,400.4219,797.25,412.4219,685.25,412.4219,673.25,400.4219,685.25,388.4219" style="stroke: #A80036; stroke-width: 1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="745.25" y="422.6323">no</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="112" x="685.25" y="404.23">Request list empty?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="20" x="809.25" y="397.8276">yes</text><rect fill="#FEFECE" filter="url(#f10elgj1fk1eyi)" height="33.9688" rx="12.5" ry="12.5" style="stroke: #A80036; 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@startuml

title **µRtWare**\nurtServiceDispatch()\n

note

  - - **service** : urt_service_t* - -

  The service to dispatch a request for.

  Must not be ""NULL"".

  - - **payload** : void* - -

  Pointer where to store the payload (if any).

  May be ""NULL"" if the service expects no payload.

  - - **bytes** : size_t - -

  Size of the payload in bytes.

  Must be 0 if the service expects no payload.

  ====

  - - **return** : urt_baserequest_t* - -

  Pointer to the request to be processed next.

  May be ""NULL"" if there are no pending requests.

endnote

start

:lock service;

if (Request list empty?) then (no)

  :access first request (""requestQueue_front"");

  note

    No need to lock the request because it is enqueued at this point.

    Enqueued requests must not be altered without the according service to be locked.

    Since the service has been locked, no enqueued requests will be modified externally.

  endnote

  :proceed ""requestQueue_front"" pointer;

  fork

    if (This was the last request (pointer became ""NULL"")?) then (yes)

      :set ""requestQueue_back"" to ""NULL"";

    else (no)

      :set request ""next"" pointer to ""NULL"";

    endif

  fork again

    if (This was the last HRT request?) then (yes)

      :set ""requestQueue_hrtBack"" to ""NULL"";

    elseif (This was the last FRT/SRT request?) then (yes)

      :set ""requestQueue_fsrtBack"" to ""NULL"";

    else (no)

    endif

  fork again

    :copy payload from request to argument;

  endfork

  :unlock service;

  stop

  note

    Returns pointer to the dispatched request.

  endnote

else (yes)

endif

:unlock service;

stop

note

  Returns ""NULL"".

endnote

@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: 11.0.7+10-post-Ubuntu-2ubuntu218.04

Operating System: Linux

Default Encoding: UTF-8

Language: en

Country: US

--></g></svg>