v0.4.3: Lock contention overhaul, StoragePool, mobile bottom nav, text scaling
Eliminate all conn_mgr lock holds during network I/O across 14 actor commands and bi-stream handlers. PostFetch, TcpPunch, PullFromPeer, FetchEngagement, ResolveAddress, AnchorProbe use brief locks for data gathering only. WormLookup, ContentSearch, WormQuery use connection snapshots for lock-free cascade fan-out. RelayIntroduce extracts forwarding data under brief lock, does I/O outside. BlobRequest, PostFetchRequest, ManifestRefresh use Arc clones instead of conn_mgr lock. ConnectionActor hoists shared Arcs (storage, blob_store, endpoint) for lock-free access. ResolveAddress adds 5s per-query timeout (was unbounded). Initial exchange failure now aborts mesh upgrade (was silently continuing with broken connection). connect_to_peer/connect_to_anchor use consistent 15s timeout. Rebalance connects outside the lock via pending_connects pattern. StoragePool: 8 concurrent SQLite connections in WAL mode replace single Mutex<Storage>. Reads run fully parallel; writes serialize at SQLite level only. PRAGMA busy_timeout=5000 for graceful write contention. Mobile bottom nav bar (<=768px) with icon tabs. Text sizes: XS/S/M/L/XL (75%/100%/125%/150%/200%), default M. localStorage persistence for instant restore. Toast repositioned above mobile nav. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Scott Reimers
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<p>This is the canonical technical reference for ItsGoin. It describes the vision, the architecture, and the current state of every subsystem — with full implementation detail. This document is versioned; each update records what changed.</p>
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<div class="card" style="margin-top: 1rem;">
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<strong style="font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em;">Changelog</strong>
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<p style="margin-top: 0.5rem;"><strong>v0.4.2</strong> (2026-03-22): Welcome screen — startup shows “How’s it goin?” with staggered counters (connections, posts, messages, reacts, comments) while backend bootstraps. Status ticker — header ticker for new posts, messages, reactions, comments, connection changes. Notification improvements — Tauri plugin → Web Notification → notify-rust fallback chain, Linux native notifications. Responsive text scaling — Small/Normal/Large (100%/150%/200%), persisted via settings. Diagnostics popover — diagnostics moved from inline section to overlay, connections on-demand, timers removed. Share details lightbox with QR code. Connect string prefers external address (UPnP/public IPv6/observed). Stale N1 fix — disconnected social routes excluded from N1 share. Replication handler fix — actively fetches posts + blobs from requester after accepting replication. Hole punch fix — target-side registers publicly routable remote address for relay introduction. Replication semaphore (3 concurrent max). Peer labels show truncated node ID.</p>
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<p style="margin-top: 0.5rem;"><strong>v0.4.3</strong> (2026-03-22): Lock contention overhaul — all conn_mgr lock holds during network I/O eliminated. PostFetch, TcpPunch, PullFromPeer, FetchEngagement, ResolveAddress, AnchorProbe, WormLookup, ContentSearch now use brief locks for data gathering only. Bi-stream handlers (BlobRequest, WormQuery, RelayIntroduce, PostFetchRequest, ManifestRefresh) fully lock-free for I/O. ConnectionActor hoists shared Arcs (storage, blob_store, endpoint) for lock-free access. ResolveAddress adds 5s per-query timeout (was unbounded). Worm cascade uses connection snapshots. Initial exchange failure now aborts mesh upgrade (was silently continuing). connect_to_peer/connect_to_anchor use 15s timeout. StoragePool — 8 concurrent SQLite connections in WAL mode replace single Mutex<Storage>. Reads run fully parallel; writes serialize only at SQLite level. Bottom nav bar for mobile/tablet (≤768px) with icon tabs. Text sizes: XS 75%, S 100%, M 125% (default), L 150%, XL 200%. Text size persisted to localStorage for instant restore.</p>
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<p><strong>v0.4.2</strong> (2026-03-22): Welcome screen — startup shows “How’s it goin?” with staggered counters (connections, posts, messages, reacts, comments) while backend bootstraps. Status ticker — header ticker for new posts, messages, reactions, comments, connection changes. Notification improvements — Tauri plugin → Web Notification → notify-rust fallback chain, Linux native notifications. Responsive text scaling — Small/Normal/Large (100%/150%/200%), persisted via settings. Diagnostics popover — diagnostics moved from inline section to overlay, connections on-demand, timers removed. Share details lightbox with QR code. Connect string prefers external address (UPnP/public IPv6/observed). Stale N1 fix — disconnected social routes excluded from N1 share. Replication handler fix — actively fetches posts + blobs from requester after accepting replication. Hole punch fix — target-side registers publicly routable remote address for relay introduction. Replication semaphore (3 concurrent max). Peer labels show truncated node ID.</p>
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<p><strong>v0.4.1</strong> (2026-03-21): Security hardening — reaction signatures (ed25519), comment signature verification on receipt, reaction removal authorization, BlobHeader author verification. Lock contention fixes — ManifestPush discovery (cm lock released during I/O), pull request handler (filter without lock), pull sender (split into brief locks), engagement checker (batch writes per chunk). Data cleanup — post deletion cleans downstream/upstream/seen tables.</p>
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<p><strong>v0.4.0</strong> (2026-03-21): Protocol v4 — header-driven sync. ManifestPush as primary post notification. Slim PullSyncRequest (per-author timestamps, not full post ID list). Tiered engagement checks (5min/1hr/4hr/24hr by content age). Multi-upstream (3 max) with fallback chain. Auto-prefetch followed authors <90d. Self Last Encounter per-author tracking. Encrypted-but-not-for-us CDN caching. Serial engagement polling. ~90% bandwidth reduction for established nodes.</p>
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<p><strong>v0.3.6</strong> (2026-03-20): Active CDN replication — all devices proactively replicate recent posts to peers (desktops > anchors > phones priority). ReplicationRequest/Response (0xE1/0xE2). Device roles (Intermittent/Available/Persistent) advertised in InitialExchange. Bandwidth budgets: replication (pull to cache) + delivery (serve requests), hourly auto-reset, phones 100MB/1GB, desktops 200MB/2GB, anchors 200MB/1GB. Cache management: 1GB default, configurable, eviction cycle activated with share-link priority boost. Engagement distribution fix — BlobHeader JSON rebuilt after diff ops. Tombstone system — deleted reactions/comments tombstoned, propagate via pull sync. Persistent notifications via seen_engagement/seen_messages tables. DOS hardening: fan-out cap (10), prefetch cap (20), downstream registration cap (50), delivery budget enforcement. Pull preference reordered: non-anchors first. Network indicator — header dot (black/red/yellow/green) + capability labels. Tab badges — contextual counts (new posts, engagement, online, unread). Message read tracking on open/close/send. Stats bar removed.</p>
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