Raven ScottandCursor
96f5893aad
Add adaptive poll helpers, discovery frame dedupe, poll DB read budget, view integrity (draft prune, pin fallback, cross-ref audit, prefs checksum), mesh quiet mode, topic merge counters, and discovery local-only guard. Co-authored-by: Cursor <[email protected]>
33 lines
750 B
JavaScript
33 lines
750 B
JavaScript
'use strict'
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/** Suppress duplicate discovery.list span emissions in the same view-build frame (P409-10). */
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const DEFAULT_WINDOW_MS = Math.max(
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8,
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Number(process.env.PEARCORD_DISCOVERY_LIST_DEDUPE_MS) || 16
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)
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function createDiscoveryListFrameDedupe (windowMs = DEFAULT_WINDOW_MS) {
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let lastEmitAt = 0
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let suppressed = 0
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return {
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shouldEmitSpan () {
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const now = Date.now()
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if (now - lastEmitAt < windowMs) {
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suppressed += 1
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return false
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}
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lastEmitAt = now
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return true
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},
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stats () {
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return { suppressed, windowMs, lastEmitAt }
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},
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reset () {
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lastEmitAt = 0
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suppressed = 0
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}
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}
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}
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module.exports = { createDiscoveryListFrameDedupe, DEFAULT_WINDOW_MS }
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