user
52 lines
8.9 KiB
XML
52 lines
8.9 KiB
XML
<?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="600.3488px" preserveAspectRatio="none" style="width:311px;height:600px;" version="1.1" viewBox="0 0 311 600" width="311.19px" zoomAndPan="magnify"><defs/><g><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="227.6552" x="44.9803" y="9.813">A1 CONTEXT — from linear cursor to reusable heap</text><!--MD5=[cd187d11655e4367e900de538d2f1d0c]
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entity APP--><rect fill="#EDF6FA" height="55.8673" style="stroke: #2C7794; stroke-width: 1.3769468762104042;" width="121.1713" x="15.6054" y="20.2686"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="58.7497" x="24.785" y="39.2613">«application»</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="102.812" x="24.785" y="51.764">01 A / B / C experiment</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="102.812" x="24.785" y="64.2667">requests payload bytes</text><!--MD5=[645d8587175d8f7ad110cd370775931d]
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entity API--><rect fill="#EDF6FA" height="55.8673" style="stroke: #2C7794; stroke-width: 1.3769468762104042;" width="141.3665" x="5.5078" y="144.9833"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="52.324" x="14.6874" y="163.976">«public API»</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="123.0073" x="14.6874" y="176.4787">02 pvPortMalloc / vPortFree</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="65.1755" x="14.6874" y="188.9813">heap statistics</text><!--MD5=[46e692d45a0b60d87b097c4043ce42a2]
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entity H4--><rect fill="#EDF6FA" height="55.8673" style="stroke: #2C7794; stroke-width: 1.3769468762104042;" width="122.0893" x="15.1464" y="277.6108"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="48.6521" x="24.3261" y="296.6035">«allocator»</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="44.9803" x="24.3261" y="309.1062">03 heap_4</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="103.73" x="24.3261" y="321.6088">first-fit · split · coalesce</text><!--MD5=[a55d5013c595d66e4d3c908e0eed28a7]
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entity ARENA--><rect fill="#EDF6FA" height="55.8673" style="stroke: #2C7794; stroke-width: 1.3769468762104042;" width="100.0581" x="26.162" y="410.2384"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="34.8827" x="35.3416" y="429.231">«arena»</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="74.3551" x="35.3416" y="441.7337">04 ucHeap[4096]</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="81.6988" x="35.3416" y="454.2364">headers + payload</text><!--MD5=[aba7613092619c8a5fef3de1c87efe89]
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entity TARGET--><rect fill="#EDF6FA" height="55.8673" style="stroke: #2C7794; stroke-width: 1.3769468762104042;" width="129.433" x="11.4746" y="534.953"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="36.7186" x="20.6542" y="553.9457">«target»</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="84.4527" x="20.6542" y="566.4484">05 Hazard3 / RV32I</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="111.0737" x="20.6542" y="578.951">GDB · registers · memory</text><path d="M169.3645,269.698 L169.3645,301.8726 L137.6029,305.5445 L169.3645,309.2164 L169.3645,341.391 A0,0 0 0 0 169.3645,341.391 L300.6334,341.391 A0,0 0 0 0 300.6334,341.391 L300.6334,278.8776 L291.4538,269.698 L169.3645,269.698 A0,0 0 0 0 169.3645,269.698 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 0.9179645841402695;"/><path d="M291.4538,269.698 L291.4538,278.8776 L300.6334,278.8776 L291.4538,269.698 " fill="#FBFB77" style="stroke: #A80036; stroke-width: 0.9179645841402695;"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="93.6324" x="174.8723" y="284.1008">heap_1: allocate only</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="111.9917" x="174.8723" y="296.6035">heap_2: free, no coalesce</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="91.7965" x="174.8723" y="309.1062">heap_3: libc wrapper</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="103.73" x="174.8723" y="321.6088">heap_4: free + coalesce</text><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="109.2378" x="174.8723" y="334.1115">heap_5: multiple regions</text><!--MD5=[ec942d3abfeef98a0155e2f031d4c131]
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link APP to API--><path d="M76.1911,76.393 C76.1911,94.8441 76.1911,119.3262 76.1911,138.8972 " fill="none" id="APP->API" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><polygon fill="#8095A1" points="76.1911,143.4136,79.8629,135.1519,76.1911,138.8238,72.5192,135.1519,76.1911,143.4136" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="76.1911" x="77.109" y="114.4059">request / release</text><!--MD5=[798ded9ffd9ac635cdedeacba358c97c]
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link API to H4--><path d="M76.1911,201.2545 C76.1911,221.6609 76.1911,249.6129 76.1911,271.3044 " fill="none" id="API->H4" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><polygon fill="#8095A1" points="76.1911,275.8575,79.8629,267.5958,76.1911,271.2677,72.5192,267.5958,76.1911,275.8575" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="52.324" x="77.109" y="239.1206">direct C call</text><!--MD5=[26d2234bc3ca60bb174d49bba6317b2c]
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link H4 to ARENA--><path d="M76.1911,333.8821 C76.1911,354.2884 76.1911,382.2404 76.1911,403.9319 " fill="none" id="H4->ARENA" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><polygon fill="#8095A1" points="76.1911,408.485,79.8629,400.2234,76.1911,403.8952,72.5192,400.2234,76.1911,408.485" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="40.3904" x="77.109" y="379.661">manages</text><!--MD5=[057090cc36f41caea0c560281f72f0d5]
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link ARENA to TARGET--><path d="M76.1911,466.3627 C76.1911,484.8138 76.1911,509.2959 76.1911,528.8669 " fill="none" id="ARENA->TARGET" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><polygon fill="#8095A1" points="76.1911,533.3833,79.8629,525.1216,76.1911,528.7935,72.5192,525.1216,76.1911,533.3833" style="stroke: #8095A1; stroke-width: 0.9179645841402695;"/><text fill="#000000" font-family="Monospace" font-size="9.1796" lengthAdjust="spacingAndGlyphs" textLength="61.5036" x="77.109" y="504.3756">stored in RAM</text><!--MD5=[5f927a6771e8d55dac04e3c75dd184e1]
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@startuml
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scale 600 height
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top to bottom direction
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skinparam backgroundColor transparent
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skinparam shadowing false
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skinparam defaultFontName Monospace
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skinparam defaultFontSize 10
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skinparam rectangleBorderColor #2c7794
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skinparam rectangleBackgroundColor #edf6fa
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skinparam ArrowColor #8095a1
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title A1 CONTEXT — from linear cursor to reusable heap
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rectangle "<<application>>\n01 A / B / C experiment\nrequests payload bytes" as APP
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rectangle "<<public API>>\n02 pvPortMalloc / vPortFree\nheap statistics" as API
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rectangle "<<allocator>>\n03 heap_4\nfirst-fit · split · coalesce" as H4
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rectangle "<<arena>>\n04 ucHeap[4096]\nheaders + payload" as ARENA
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rectangle "<<target>>\n05 Hazard3 / RV32I\nGDB · registers · memory" as TARGET
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APP -down-> API : request / release
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API -down-> H4 : direct C call
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H4 -down-> ARENA : manages
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ARENA -down-> TARGET : stored in RAM
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note right of H4
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heap_1: allocate only
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heap_2: free, no coalesce
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heap_3: libc wrapper
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heap_4: free + coalesce
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heap_5: multiple regions
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end note
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@enduml
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PlantUML version 1.2020.02(Sun Mar 01 11:22:07 CET 2020)
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(GPL source distribution)
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Java Runtime: OpenJDK Runtime Environment
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JVM: OpenJDK 64-Bit Server VM
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Java Version: 25.0.4-ea+4-1-Debian
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Operating System: Linux
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Default Encoding: UTF-8
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Language: en
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Country: null
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--></g></svg> |
