vague diagram on event loop/UI interactions
git-svn-id: svn://localhost/ardour2/branches/3.0@12077 d708f5d6-7413-0410-9779-e7cbd77b26cf
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doc/eventloop.svg
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doc/eventloop.svg
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style="font-size:20">UI Event Loop</tspan><tspan
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style="font-size:22px">Freeze Thread</tspan></text>
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id="tspan3010"> Step One:</tspan><tspan
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id="tspan3110">AbstractUI::get_request()</tspan><tspan
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sodipodi:role="line"
|
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id="tspan3014"
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x="380"
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|
y="512.36218">Generic </tspan><tspan
|
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|
sodipodi:role="line"
|
||||||
|
x="380"
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|
y="529.86218"
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|
id="tspan3098">non-RT-safe </tspan><tspan
|
||||||
|
sodipodi:role="line"
|
||||||
|
x="380"
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|
y="547.36218"
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|
id="tspan3100">request queue</tspan></text>
|
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|
<text
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|
xml:space="preserve"
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style="font-size:14px;font-style:normal;font-weight:normal;fill:#000000;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"
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x="82.85714"
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y="520.93359"
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id="text3016"><tspan
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sodipodi:role="line"
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id="tspan3018"
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|
x="82.85714"
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|
y="520.93359">RT-safe per-thread request queues</tspan></text>
|
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|
<path
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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<path
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<path
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x="140"
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y="312.36218"
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id="text3042"><tspan
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sodipodi:role="line"
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id="tspan3044"
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x="140"
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y="312.36218">while (1) </tspan><tspan
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sodipodi:role="line"
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|
x="140"
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y="329.86218"
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|
id="tspan3046"> if (channel.data_available()) {</tspan><tspan
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|
sodipodi:role="line"
|
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|
x="140"
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|
y="347.36218"
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|
id="tspan3048"> channel.drain();</tspan><tspan
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|
sodipodi:role="line"
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|
x="140"
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|
y="364.86218"
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|
id="tspan3050"> handle_ui_requests();</tspan><tspan
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|
sodipodi:role="line"
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|
x="140"
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|
y="382.36218"
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id="tspan3052"> }</tspan><tspan
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sodipodi:role="line"
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x="140"
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y="399.86218"
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id="tspan3054" /></text>
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|
<path
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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d="m 140,777.36218 -5,-160"
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id="path3062"
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<path
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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d="m 185,617.36218 150,170"
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id="path3066"
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inkscape:connector-type="polyline" />
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<path
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;display:inline"
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d="m 365,617.36218 180,175"
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id="path3070"
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<text
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xml:space="preserve"
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style="font-size:14px;font-style:normal;font-weight:normal;fill:#000000;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"
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|
x="530"
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|
y="877.36218"
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id="text3074"><tspan
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sodipodi:role="line"
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|
id="tspan3076"
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|
x="530"
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|
y="877.36218"
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|
style="font-size:22px">J. Random Thread</tspan></text>
|
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|
<path
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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|
d="m 410,777.36218 90,-80 0,-370 0,0"
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|
id="path3080" />
|
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|
<path
|
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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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|
d="m 575,782.36218 -70,-85 0,-370 0,0"
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|
id="path3084" />
|
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|
<text
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|
xml:space="preserve"
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|
style="font-size:14px;font-style:normal;font-weight:normal;fill:#000000;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"
|
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|
x="515.65338"
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|
y="601.61261"
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|
id="text3088"><tspan
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|
sodipodi:role="line"
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|
id="tspan3090"
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|
x="515.65338"
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|
y="601.61261"> Step Two:</tspan><tspan
|
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|
sodipodi:role="line"
|
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|
x="515.65338"
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|
y="619.11261"
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|
id="tspan3112">CrossThreadChannel::wakeup()</tspan></text>
|
||||||
|
<text
|
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|
xml:space="preserve"
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|
style="font-size:14px;font-style:normal;font-weight:normal;fill:#000000;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"
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|
x="448.70532"
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|
y="515.75555"
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|
id="text3092"><tspan
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|
sodipodi:role="line"
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|
id="tspan3094"
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|
x="448.70532"
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|
y="515.75555"></tspan><tspan
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|
sodipodi:role="line"
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|
id="tspan3096" /></text>
|
||||||
|
<path
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|
style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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|
d="m 220,792.36218 c 5,0 275,-100 275,-100 l 0,-365"
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|
id="path3104" />
|
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|
<path
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|
style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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|
d="m 370,322.36218 105,-25"
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|
id="path3106"
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|
<text
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xml:space="preserve"
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style="font-size:14px;font-style:normal;font-weight:normal;fill:#000000;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"
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|
x="636.26208"
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|
y="791.72467"
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|
id="text3114"><tspan
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|
sodipodi:role="line"
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|
id="tspan3116"
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|
x="636.26208"
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|
y="791.72467" /></text>
|
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|
<rect
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|
style="opacity:0.61851855000000000;color:#000000;fill:#000000;fill-opacity:0;stroke:#ed0000;stroke-width:2.09956263999999981;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke-dashoffset:0;marker:none;visibility:visible;display:inline;overflow:visible;enable-background:accumulate"
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|
id="rect3139"
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|
width="500"
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|
height="540"
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|
x="40"
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|
y="122.36218"
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|
ry="0" />
|
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|
<text
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|
xml:space="preserve"
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|
style="font-size:14px;font-style:normal;font-weight:normal;fill:#db0000;fill-opacity:1;stroke:none;font-family:Bitstream Vera Sans"
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|
x="50"
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|
y="152.36218"
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id="text3141"><tspan
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|
sodipodi:role="line"
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|
id="tspan3143"
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|
x="50"
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|
y="152.36218"
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|
style="font-size:24px;fill:#db0000;fill-opacity:1">AbstractUI IS-A BaseUI IS-A Event Loop</tspan></text>
|
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|
</g>
|
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|
</svg>
|
||||||
|
After Width: | Height: | Size: 19 KiB |
Loading…
Reference in New Issue
Block a user