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dmvs_html: bounded layout memory, data-dmod-width, more states - #5
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Every inline layout and every intrinsic size took a 196 kB buffer from the arena (MAX_ITEMS items), flex layout another; the arena frees nothing until the page is done, and flex layouts measure their items again and again - a car HMI page took 225 MB per layout, 8 GB for its 33 states, and a page with more states ran a build host out of memory. The buffers are taken from the heap and given back when the function returns: 2.3 MB per layout, the page converts in 0.7 s instead of 16 s, the view written is the same. States are cheap now: 96 of them (was 48). data-dmod-width="name" makes an element as wide as the integer property `name` says (its laid out width times the property over data-dmod-scale, 1000 by default; data-dmod-value its initial value) - the property one of dmod.prop(), or made here: a progress bar the application moves. Needs dmvsi 0.6 (properties and change handlers). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Summary
data-dmod-width="name": binds an element's width to a property of the channel (data-dmod-scale, default 1000;data-dmod-valuefor the initial value) - progress bars driven by the application.MAX_STATES48 → 96.Order
Needs dmvsi 0.6 released.
Test plan
ctest: 11/11ulimit -v🤖 Generated with Claude Code