ui/img/detailed_fsm.svg

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<!-- Title: cache_req_fsm Pages: 1 -->
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<title>cache_req_fsm</title>
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<title>acceptor</title>
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<title>recv</title>
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<title>acceptor&#45;&gt;recv</title>
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<title>ESI_REQ</title>
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<title>ESI_REQ&#45;&gt;recv</title>
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<title>RESTART</title>
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<title>restart</title>
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<title>RESTART&#45;&gt;restart</title>
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<title>hash</title>
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<title>recv:s&#45;&gt;hash</title>
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<title>recv:s&#45;&gt;hash</title>
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<title>recv:s&#45;&gt;hash</title>
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<title>recv:s&#45;&gt;hash</title>
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<title>recv:s&#45;&gt;hash</title>
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<!-- SYNTH -->
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<title>SYNTH</title>
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<!-- synth -->
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<title>synth</title>
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<!-- SYNTH&#45;&gt;synth -->
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<title>SYNTH&#45;&gt;synth</title>
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<!-- deliver -->
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<title>deliver</title>
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<!-- V1D_Deliver -->
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<title>V1D_Deliver</title>
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<!-- deliver&#45;&gt;V1D_Deliver -->
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<title>deliver:s&#45;&gt;V1D_Deliver</title>
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<!-- deliver&#45;&gt;V1D_Deliver -->
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<title>deliver:s&#45;&gt;V1D_Deliver</title>
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<!-- DONE -->
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<title>DONE</title>
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<!-- V1D_Deliver&#45;&gt;DONE -->
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<!-- stream&#45;&gt;V1D_Deliver -->
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<title>stream&#45;&gt;V1D_Deliver</title>
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<!-- synth&#45;&gt;V1D_Deliver -->
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<!-- see backend graph -->
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<title>FETCH_DONE</title>
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<!-- FETCH&#45;&gt;FETCH_DONE -->
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<title>FETCH&#45;&gt;FETCH_DONE</title>
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<!-- FETCH_FAIL -->
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<!-- FETCH&#45;&gt;FETCH_FAIL -->
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<title>FETCH&#45;&gt;FETCH_FAIL</title>
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<!-- FETCH_DONE&#45;&gt;deliver -->
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<title>FETCH_DONE&#45;&gt;deliver</title>
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<!-- FETCH_DONE&#45;&gt;deliver -->
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<title>FETCH_DONE&#45;&gt;deliver</title>
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<title>lookup2</title>
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<title>lookup2:s&#45;&gt;BGFETCH</title>
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<text text-anchor="middle" x="118" y="-551.8" font-family="Times,serif" font-size="14.00">parallel</text>
<text text-anchor="middle" x="118" y="-536.8" font-family="Times,serif" font-size="14.00">if obj expired</text>
</g>
<!-- miss -->
<g id="node18" class="node">
<title>miss</title>
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<text text-anchor="middle" x="210.5" y="-635.3" font-family="Times,serif" font-size="14.00">cnt_miss:</text>
<polyline fill="none" stroke="black" points="98.5,-627.5 322.5,-627.5 "/>
<text text-anchor="middle" x="165" y="-612.3" font-family="Times,serif" font-size="14.00">vcl_miss{}</text>
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<text text-anchor="middle" x="277" y="-612.3" font-family="Times,serif" font-size="14.00">req.*</text>
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<text text-anchor="middle" x="125" y="-589.3" font-family="Times,serif" font-size="14.00">fetch</text>
<polyline fill="none" stroke="black" points="151.5,-581.5 151.5,-604.5 "/>
<text text-anchor="middle" x="179.5" y="-589.3" font-family="Times,serif" font-size="14.00">synth</text>
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<text text-anchor="middle" x="240.5" y="-589.3" font-family="Times,serif" font-size="14.00">restart</text>
<polyline fill="none" stroke="black" points="273.5,-581.5 273.5,-604.5 "/>
<text text-anchor="middle" x="298" y="-589.3" font-family="Times,serif" font-size="14.00">pass</text>
</g>
<!-- lookup2&#45;&gt;miss -->
<g id="edge21" class="edge">
<title>lookup2:s&#45;&gt;miss</title>
<path fill="none" stroke="blue" stroke-width="2" d="M90.5,-688C90.5,-676.05 94.97,-666.06 102.17,-657.73"/>
<polygon fill="blue" stroke="blue" stroke-width="2" points="104.82,-660.04 109.51,-650.54 99.92,-655.04 104.82,-660.04"/>
</g>
<!-- pass -->
<g id="node19" class="node">
<title>pass</title>
<polygon fill="none" stroke="black" points="263,-445.5 263,-514.5 438,-514.5 438,-445.5 263,-445.5"/>
<text text-anchor="middle" x="350.5" y="-499.3" font-family="Times,serif" font-size="14.00">cnt_pass:</text>
<polyline fill="none" stroke="black" points="263,-491.5 438,-491.5 "/>
<text text-anchor="middle" x="317" y="-476.3" font-family="Times,serif" font-size="14.00">vcl_pass{}</text>
<polyline fill="none" stroke="black" points="371,-468.5 371,-491.5 "/>
<text text-anchor="middle" x="404.5" y="-476.3" font-family="Times,serif" font-size="14.00">req.*</text>
<polyline fill="none" stroke="black" points="263,-468.5 438,-468.5 "/>
<text text-anchor="middle" x="289.5" y="-453.3" font-family="Times,serif" font-size="14.00">fetch</text>
<polyline fill="none" stroke="black" points="316,-445.5 316,-468.5 "/>
<text text-anchor="middle" x="344" y="-453.3" font-family="Times,serif" font-size="14.00">synth</text>
<polyline fill="none" stroke="black" points="372,-445.5 372,-468.5 "/>
<text text-anchor="middle" x="405" y="-453.3" font-family="Times,serif" font-size="14.00">restart</text>
</g>
<!-- lookup2&#45;&gt;pass -->
<g id="edge22" class="edge">
<title>lookup2:s&#45;&gt;pass</title>
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<polygon fill="red" stroke="red" stroke-width="2" points="359.71,-524.47 355.42,-514.79 352.73,-525.04 359.71,-524.47"/>
</g>
<!-- lookup -->
<g id="node17" class="node">
<title>lookup</title>
<polygon fill="none" stroke="grey" points="97.5,-841.5 97.5,-910.5 361.5,-910.5 361.5,-841.5 97.5,-841.5"/>
<text text-anchor="middle" x="229.5" y="-895.3" font-family="Times,serif" font-size="14.00" fill="grey">cnt_lookup:</text>
<polyline fill="none" stroke="grey" points="97.5,-887.5 361.5,-887.5 "/>
<text text-anchor="middle" x="229.5" y="-872.3" font-family="Times,serif" font-size="14.00" fill="grey">hash lookup</text>
<polyline fill="none" stroke="grey" points="97.5,-864.5 361.5,-864.5 "/>
<text text-anchor="middle" x="119.5" y="-849.3" font-family="Times,serif" font-size="14.00" fill="grey">hit?</text>
<polyline fill="none" stroke="grey" points="141.5,-841.5 141.5,-864.5 "/>
<text text-anchor="middle" x="170" y="-849.3" font-family="Times,serif" font-size="14.00" fill="grey">miss?</text>
<polyline fill="none" stroke="grey" points="198.5,-841.5 198.5,-864.5 "/>
<text text-anchor="middle" x="251" y="-849.3" font-family="Times,serif" font-size="14.00" fill="grey">hit&#45;for&#45;pass?</text>
<polyline fill="none" stroke="grey" points="303.5,-841.5 303.5,-864.5 "/>
<text text-anchor="middle" x="332.5" y="-849.3" font-family="Times,serif" font-size="14.00" fill="grey">busy?</text>
</g>
<!-- lookup&#45;&gt;lookup2 -->
<g id="edge19" class="edge">
<title>lookup:s&#45;&gt;lookup2</title>
<path fill="none" stroke="green" stroke-width="2" d="M119.5,-840C119.5,-823.74 122.3,-806.4 125.98,-790.63"/>
<polygon fill="green" stroke="green" stroke-width="2" points="129.48,-791.06 128.5,-780.51 122.69,-789.36 129.48,-791.06"/>
</g>
<!-- lookup&#45;&gt;lookup -->
<g id="edge16" class="edge">
<title>lookup:e&#45;&gt;lookup:e</title>
<path fill="none" stroke="grey" d="M361.5,-853C367.5,-834 379.5,-834 379.5,-876 379.5,-908.81 372.18,-915.99 366.11,-908.5"/>
<polygon fill="grey" stroke="grey" points="369.01,-906.47 361.5,-899 362.72,-909.52 369.01,-906.47"/>
<text text-anchor="middle" x="423" y="-872.3" font-family="Times,serif" font-size="14.00" fill="grey">(waitinglist)</text>
</g>
<!-- lookup&#45;&gt;miss -->
<g id="edge17" class="edge">
<title>lookup:s&#45;&gt;miss</title>
<path fill="none" stroke="blue" stroke-width="2" d="M169.5,-840C169.5,-777.76 263.02,-833.47 296.5,-781 318.73,-746.16 314.12,-725.39 296.5,-688 291.1,-676.53 282.83,-666.28 273.51,-657.38"/>
<polygon fill="blue" stroke="blue" stroke-width="2" points="275.64,-654.59 265.86,-650.53 270.98,-659.81 275.64,-654.59"/>
</g>
<!-- lookup&#45;&gt;pass -->
<g id="edge18" class="edge">
<title>lookup:s&#45;&gt;pass</title>
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<polygon fill="red" stroke="red" stroke-width="2" points="371.78,-523.11 365.47,-514.6 365.1,-525.19 371.78,-523.11"/>
</g>
<!-- miss&#45;&gt;FETCH -->
<g id="edge23" class="edge">
<title>miss:s&#45;&gt;FETCH</title>
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<polygon fill="blue" stroke="blue" stroke-width="2" points="221.4,-418.4 218.38,-408.25 214.41,-418.07 221.4,-418.4"/>
</g>
<!-- miss&#45;&gt;pass -->
<g id="edge24" class="edge">
<title>miss:s&#45;&gt;pass</title>
<path fill="none" stroke="red" stroke-width="2" d="M298.5,-581C298.5,-560.67 307.06,-540.37 317.24,-523.43"/>
<polygon fill="red" stroke="red" stroke-width="2" points="320.26,-525.21 322.67,-514.89 314.35,-521.45 320.26,-525.21"/>
</g>
<!-- pass&#45;&gt;FETCH -->
<g id="edge25" class="edge">
<title>pass:s&#45;&gt;FETCH</title>
<path fill="none" stroke="red" stroke-width="2" d="M289.5,-445C289.5,-435.9 274.54,-423.78 258.35,-413.32"/>
<polygon fill="red" stroke="red" stroke-width="2" points="260.19,-410.34 249.85,-408.03 256.49,-416.29 260.19,-410.34"/>
</g>
<!-- pipe -->
<g id="node20" class="node">
<title>pipe</title>
<polygon fill="none" stroke="black" points="561,-818.5 561,-933.5 722,-933.5 722,-818.5 561,-818.5"/>
<text text-anchor="middle" x="641.5" y="-918.3" font-family="Times,serif" font-size="14.00">cnt_pipe:</text>
<polyline fill="none" stroke="black" points="561,-910.5 722,-910.5 "/>
<text text-anchor="middle" x="641.5" y="-895.3" font-family="Times,serif" font-size="14.00">filter req.*&#45;&gt;bereq.*</text>
<polyline fill="none" stroke="black" points="561,-887.5 722,-887.5 "/>
<text text-anchor="middle" x="607" y="-860.8" font-family="Times,serif" font-size="14.00">vcl_pipe{}</text>
<polyline fill="none" stroke="black" points="653,-841.5 653,-887.5 "/>
<text text-anchor="middle" x="687.5" y="-872.3" font-family="Times,serif" font-size="14.00">req.*</text>
<polyline fill="none" stroke="black" points="653,-864.5 722,-864.5 "/>
<text text-anchor="middle" x="687.5" y="-849.3" font-family="Times,serif" font-size="14.00">bereq.*</text>
<polyline fill="none" stroke="black" points="561,-841.5 722,-841.5 "/>
<text text-anchor="middle" x="599" y="-826.3" font-family="Times,serif" font-size="14.00">pipe</text>
<polyline fill="none" stroke="black" points="637,-818.5 637,-841.5 "/>
<text text-anchor="middle" x="679.5" y="-826.3" font-family="Times,serif" font-size="14.00">synth</text>
</g>
<!-- pipe_do -->
<g id="node21" class="node">
<title>pipe_do</title>
<ellipse fill="none" stroke="black" cx="681.5" cy="-734.5" rx="120.83" ry="26.74"/>
<text text-anchor="middle" x="681.5" y="-738.3" font-family="Times,serif" font-size="14.00">send bereq,</text>
<text text-anchor="middle" x="681.5" y="-723.3" font-family="Times,serif" font-size="14.00">copy bytes until close</text>
</g>
<!-- pipe&#45;&gt;pipe_do -->
<g id="edge26" class="edge">
<title>pipe:pipe&#45;&gt;pipe_do</title>
<path fill="none" stroke="orange" stroke-width="2" d="M598.5,-818C598.5,-796.87 612.19,-779.3 628.46,-765.87"/>
<polygon fill="orange" stroke="orange" stroke-width="2" points="630.8,-768.49 636.6,-759.62 626.54,-762.94 630.8,-768.49"/>
</g>
<!-- pipe_do&#45;&gt;DONE -->
<g id="edge27" class="edge">
<title>pipe_do&#45;&gt;DONE</title>
<path fill="none" stroke="orange" stroke-width="2" d="M678.35,-707.63C675.76,-684.05 672.5,-648.24 672.5,-617 672.5,-617 672.5,-617 672.5,-90 672.5,-35.9 599.8,-22.04 548.12,-19.03"/>
<polygon fill="orange" stroke="orange" stroke-width="2" points="548.24,-15.53 538.09,-18.56 547.91,-22.52 548.24,-15.53"/>
</g>
<!-- restart&#45;&gt;recv -->
<g id="edge29" class="edge">
<title>restart:s&#45;&gt;recv</title>
<path fill="none" stroke="black" d="M631.5,-1185C631.5,-1173.15 626.81,-1163.12 619.43,-1154.67"/>
<polygon fill="black" stroke="black" points="621.89,-1152.18 612.31,-1147.65 616.97,-1157.16 621.89,-1152.18"/>
</g>
<!-- err_restart -->
<g id="node23" class="node">
<title>err_restart</title>
<text text-anchor="middle" x="712.5" y="-1109.3" font-family="Times,serif" font-size="14.00">SYNTH</text>
</g>
<!-- restart&#45;&gt;err_restart -->
<g id="edge30" class="edge">
<title>restart:s&#45;&gt;err_restart</title>
<path fill="none" stroke="sienna" d="M711.5,-1185C711.5,-1170.65 711.71,-1154.67 711.93,-1141.51"/>
<polygon fill="sienna" stroke="sienna" points="715.44,-1141.28 712.12,-1131.22 708.44,-1141.15 715.44,-1141.28"/>
</g>
<!-- hash&#45;&gt;SYNTH -->
<g id="edge40" class="edge">
<title>hash:lookup&#45;&gt;SYNTH</title>
<path fill="none" stroke="sienna" d="M532.5,-971C532.5,-929.22 532.5,-918.78 532.5,-877 532.5,-877 532.5,-877 532.5,-389 532.5,-374.15 528.75,-358.07 524.68,-344.98"/>
<polygon fill="sienna" stroke="sienna" points="527.9,-343.57 521.41,-335.2 521.26,-345.79 527.9,-343.57"/>
</g>
<!-- hash&#45;&gt;lookup -->
<g id="edge36" class="edge">
<title>hash:lookup&#45;&gt;lookup:n</title>
<path fill="none" stroke="green" stroke-width="2" d="M457.5,-983C407.85,-983 251.54,-967.3 231.6,-921.83"/>
<polygon fill="green" stroke="green" stroke-width="2" points="235.01,-921.05 229.5,-912 228.17,-922.51 235.01,-921.05"/>
</g>
<!-- hash&#45;&gt;pass -->
<g id="edge38" class="edge">
<title>hash:lookup&#45;&gt;pass</title>
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<polygon fill="red" stroke="red" stroke-width="2" points="431.95,-517.18 421.66,-514.69 428.15,-523.06 431.95,-517.18"/>
</g>
<!-- hash&#45;&gt;pipe -->
<g id="edge39" class="edge">
<title>hash:lookup&#45;&gt;pipe:n</title>
<path fill="none" stroke="orange" stroke-width="2" d="M607.5,-983C630.59,-983 639.25,-965.93 641.1,-944.01"/>
<polygon fill="orange" stroke="orange" stroke-width="2" points="644.6,-944.13 641.5,-934 637.61,-943.85 644.6,-944.13"/>
</g>
<!-- purge -->
<g id="node25" class="node">
<title>purge</title>
<polygon fill="none" stroke="black" points="740.5,-841.5 740.5,-910.5 896.5,-910.5 896.5,-841.5 740.5,-841.5"/>
<text text-anchor="middle" x="818.5" y="-895.3" font-family="Times,serif" font-size="14.00">cnt_purge:</text>
<polyline fill="none" stroke="black" points="740.5,-887.5 896.5,-887.5 "/>
<text text-anchor="middle" x="792.5" y="-872.3" font-family="Times,serif" font-size="14.00">vcl_purge{}</text>
<polyline fill="none" stroke="black" points="844.5,-864.5 844.5,-887.5 "/>
<text text-anchor="middle" x="870.5" y="-872.3" font-family="Times,serif" font-size="14.00">req.*</text>
<polyline fill="none" stroke="black" points="740.5,-864.5 896.5,-864.5 "/>
<text text-anchor="middle" x="777" y="-849.3" font-family="Times,serif" font-size="14.00">synth</text>
<polyline fill="none" stroke="black" points="813.5,-841.5 813.5,-864.5 "/>
<text text-anchor="middle" x="855" y="-849.3" font-family="Times,serif" font-size="14.00">restart</text>
</g>
<!-- hash&#45;&gt;purge -->
<g id="edge37" class="edge">
<title>hash:lookup&#45;&gt;purge:n</title>
<path fill="none" stroke="purple" stroke-width="2" d="M607.5,-983C653.49,-983 796.34,-964.39 816.2,-922.02"/>
<polygon fill="purple" stroke="purple" stroke-width="2" points="819.67,-922.53 818.5,-912 812.85,-920.96 819.67,-922.53"/>
</g>
</g>
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