7 Commits

Author	SHA1	Message	Date
enricobuehler	dd558be55b	fix(core/client): fix the four ways a speed-test probe corrupts ABR and the report tick ... There is one `ProbeState` per session and no correlation id, and two independent requesters share it: the pump's startup link-capacity probe and the embedder's `NativeClient::request_probe` (the shipped "Test connection" in the Windows GUI and the Linux GTK app). The startup path had a busy check, a watchdog and a window rebase; the embedder path had none of them, and the two collide by default — both shipped speed tests call `request_probe` on the statement right after `connect()`, and the pump's probe fires 2 s later, inside that burst. Four defects, one cluster: - The pump overwrote the shared slot unconditionally. Mid-burst it drops `base_packets`/`base_bytes`, the pump re-snapshots them against the host's full-burst denominator, and the user's speed test reports roughly an order of magnitude low; if the result lands first instead, the reset wipes `done` and the embedder's poll loop never sees its own measurement. Now it defers and retries rather than stealing the slot. - An unanswered embedder probe never timed out. `probe_active` gates the entire report tick — LossReport, the ABR window feed, the standing-latency ladder and a pending ClockResync all live inside it. A host that ignores ProbeRequest is an anticipated configuration (the startup path was given a 6 s timeout for exactly that) so the embedder path could latch `active` forever and silently switch off every adaptation mechanism for the rest of the session. Now a watchdog covers a probe of either origin. - `request_probe` latched `active` before `try_send`, so a full or closed ctrl channel returned `Closed` to the caller while leaving the session wedged in the state above. It now rolls back, mirroring the startup path. - Only the startup path rebased the ABR window past the burst. Probe filler is counted into `bytes_received` for every accepted datagram but never reaches the decoder, and the tick is suppressed for the whole burst, so the first post-burst window read the burst rate as `actual_kbps`. That poisons `proven_kbps`, a monotone high-water mark that is never decayed, which disables the x1.5 evidence-gated climb guard for the session and authorizes a climb into a rate the decoder has never carried. The rebase now happens on the falling edge of any probe, and covers the loss/packet anchors too so the first post-burst LossReport isn't divided by a filler-inflated packet count. Also: `wants_decode_latency` advertised on two of the three terms the pump actually requires to arm ABR, omitting `resolved_bitrate_kbps > 0`, so against an old host that reports no rate an embedder fed decode latency to a controller that never runs. No wire or ABI change. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-07-20 07:42:37 +02:00
enricobuehler	810d918d36	fix(core/quic): make the control-stream read cancel-safe ... `io::read_msg` frames a message with two `quinn::RecvStream::read_exact` calls, and quinn documents `read_exact` as explicitly NOT cancel-safe: the bytes it has already taken out of the stream live only in the future's own buffer and nothing puts them back on drop. Both long-lived control loops drive that read from a `tokio::select!` arm — the client pump alongside `ctrl_rx.recv()` and the resync tick, the host alongside probe/reconfig/clip-offer channels — and neither uses `biased;`, so any sibling that becomes ready ends the iteration and drops a partially-progressed read. `clock_sync` has the same shape via `tokio::time::timeout`, which can fire mid-frame before the session even starts. A control frame only has to straddle two wakeups for this to bite: a ClipOffer carries up to 16 kinds x 128 bytes of MIME, ~2 KB, which exceeds one QUIC packet and is subject to the pacer; any frame whose second half is lost or reordered does it too. Losing the consumed length prefix misaligns the stream permanently — the next read takes two payload bytes as a length, so Reconfigured, ProbeResult, BitrateChanged, ClockEcho and ClipState all decode as garbage and are silently dropped, and a bogus length up to 64 KiB parks the read forever. Mode switches, adaptive bitrate, mid-stream clock resync and clipboard are dead for the rest of the session; only a reconnect recovers, and the log shows at most one `warn!`. Add `io::MsgReader`, which keeps the frame in progress in the reader rather than the future and reads via quinn's cancel-safe `read`, and switch the three cancelling sites to it (client control loop, host control loop, clock_sync). The sequential handshake/pairing callers keep the plain `read_msg`, whose doc comment now states the constraint. No wire bytes and no ABI change — only how the same length-prefixed frames are assembled. Tests: a frame split across two wakeups with the read cancelled in between must resume and leave the following frame correctly framed (confirmed to fail — it hangs on the desynced stream — against the old behavior), plus a zero-length frame round-trip. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>	2026-07-20 07:42:37 +02:00
enricobuehler	a784682d4c	fix(client/net): split the receipt stamp from the pull + bleed standing latency ... The two-pair investigation (wired Mac clients stuck at a rock-steady ~18-19 ms "network" that survived the load ending and cleared only on reconnect) exposed two structural gaps, one of measurement and one of recovery: - Receipt was stamped at the hand-off PULL (Swift nextAU, pf-client-core, Android decode loops), not at reassembly completion — so any client-side standing state between the reassembler and the pull read as NETWORK latency, undiagnosable from the HUD. ABI v9: `PunktfunkFrame`/`Frame` grow `received_ns`, stamped by `Session::poll_frame` as the AU crosses the session boundary. Every embedder now uses the core stamp; the Apple client keeps the pull instant as `AccessUnit.pulledNs` and shows the receipt→pull wait as its own "client queue" term (detailed HUD tier from 2 ms + a `queue_p50` stats-log field). Decode stages keep their pull anchor on all platforms, so no historical stage shifts meaning. - The jump-to-live detectors deliberately ignore anything under 6 queued frames / 400 ms behind — so a small, constant, loss-free elevation (a sub-frame standing backlog, or a stale clock offset after a wall-clock step/slew) is carried for the rest of the session. New third detector (`StandingLatency`, unit-tested ladder): window-MIN one-way delay ≥ 10 ms above the session floor with zero loss for ~4.5 s escalates gently — a free clock re-sync first (an applied re-sync re-bases the floor), then at most 3 flush+keyframe bleeds sharing the jump-to-live cooldown, then a loud disarm naming what it means. Loss windows reset the run: congestion belongs to FEC/ABR, not this detector. Also: mid-stream re-sync apply/discard logs debug→info — they are the forensic trail for the stale-offset case and were invisible in the field. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-19 23:38:11 +02:00
enricobuehler	bbe4380b41	perf(latency): T1.1 frame-driven encode trigger + T1.4 time-based flush thresholds ... design/latency-reduction-2026-07.md tier 1, remaining halves: - T1.1: the native encode loop wakes on the capture's ACTUAL arrival instead of sampling at a free-running tick — deletes the sample-and-hold (~half a frame interval on average, a full one worst-case: ~8ms avg @60fps). New Capturer::supports_arrival_wait/wait_arrival pair (IDD-push waits its frame-ready event against the shared-header token; the PipeWire portal blocks its channel with a pending stash); backends without an arrival signal — and PUNKTFUNK_FRAME_DRIVEN=0 — keep the legacy tick bit-identically. A 0.9x-interval rate floor caps encode at ~1.11x target when the compositor outruns the session; a +0.5x-interval keepalive keeps static desktops re-encoding at 1.5x-interval cadence. Pacing deadlines re-anchor to the actual submit so they can't drift against the arrival clock. GameStream plane untouched. - T1.4: the jump-to-live detectors run on WALL-CLOCK now (STANDING_TIME / FLUSH_AFTER = 250ms) instead of 30-frame counts whose meaning scaled with fps (500ms @60 but 125ms @240 — and stretching further under T1.1's slower static-scene repeats). The queue trip also requires depth still >= high, so a hysteresis-band hover can't fire on elapsed time alone. Validated: .21 Linux 185 core + 177 host + pf-capture tests, clippy -D warnings; .133 Windows cargo check of pf-capture + punktfunk-host green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-17 19:31:49 +02:00
enricobuehler	2064c0780c	merge(core): reconcile the W7/W8 client refactor with origin's shared-clipboard feature ... origin/main landed the shared clipboard (design/clipboard-and-file-transfer.md) while this branch split quic/msgs.rs -> quic/{caps,control,...} and client.rs -> client/{mod,control,worker,pump,planes,...} (W7) and deleted the two monoliths. The feature had modified both deleted files, so its delta is re-applied onto the split instead of resurrecting the monoliths: - HOST_CAP_CLIPBOARD -> quic/caps.rs - MSG_CLIP_* / CLIP_* consts, the six Clip* structs, and their encode/decode impls -> quic/control.rs (beside the clock codecs) - CtrlRequest::{ClipControl,ClipOffer} + Negotiated.host_caps -> client/control.rs - WorkerArgs.{clip_event_tx,clip_cmd_rx} -> client/worker.rs - CLIP_EVENT_QUEUE -> client/planes.rs - NativeClient clip fields, the 7 clip_* / host_caps / next_clip methods, connect() channel wiring -> client/mod.rs - the control-task encode/decode arms and the clipboard-task spawn -> client/pump.rs Cargo.lock reconciled (adds pf-clipboard), punktfunk-host/Cargo.toml unions the W6 pf-* subsystem deps with pf-clipboard, and include/punktfunk_core.h is the cbindgen union (clipboard + rumble C-ABI). punktfunk-core builds --all-features and its 174 lib tests pass, including quic::tests::clip_loopback. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-17 15:38:11 +02:00
enricobuehler	13b1f36d4a	feat(core,clients): one rumble policy engine for every platform (rumble root fix D) ... punktfunk-core client/rumble.rs: a per-connection policy engine consumes seq-gated wire updates and emits EFFECTIVE actuator commands — re-emits on renewals (duration APIs stay re-armed), self-silences at the v2 lease, a UNIFORM 1 s legacy-host staleness replacing the per-platform zoo (Apple 1.6 s / Android 60 s / SDL 1.5 s / Deck 1 s), quirk-declared actuator keepalives (Deck 40 ms + LSB dedupe-defeat jitter), and one stop per buzzing pad on connection close. Per-pad mailbox semantics: a stalled embedder wakes to ONE current command, and a stop can structurally never be the update an overflowing queue drops. New API/ABI: NativeClient::{next_rumble_command,set_rumble_quirks} + punktfunk_connection_next_rumble_cmd/_set_rumble_quirks (next_rumble/next_rumble2 stay for un-migrated embedders; both consumers are fed). Migrations DELETE the platform forks: pf-client-core loses RumbleState + the Deck keepalive loop + LEGACY_RUMBLE_CEILING_MS and physically silences a slot at close; Android loses the 60 s legacy one-shot (backstop repack, cancel-on-zero); Apple loses envelopeDeadline + sessionStaleSeconds + both tick watchdogs (CoreHaptics realization untouched; mac xcframework rebuilt locally). design/rumble-root-fix.md par. D. Engine 10/10 unit tests; core tests 176 Linux / 175 Windows + clippy -D warnings; swift build + RumbleTuningTests; Kotlin + android-native compile green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-17 14:07:32 +02:00
enricobuehler	ffa63a74f2	refactor(core/W7): split client.rs into client/ facade + submodules ... Turn the 2674-line client.rs into a client/ directory module (mod.rs facade + 8 submodules) behind glob/`use self::` re-exports, so crate::client::X paths (NativeClient, ProbeOutcome, AudioPacket, display_hdr_env_override) stay byte-stable. Leaf lifts: frame_channel.rs (the FIFO hand-off + jump-to-live consts + DecodeLatAcc), recovery.rs (RfiRecovery loss-range detector), probe.rs (ProbeState/ProbeOutcome), planes.rs (side-plane queues + AudioPacket), control.rs (CtrlRequest/Negotiated), worker.rs (WorkerArgs + reject_from_close), pairing.rs (NativeClient::pair). The per-frame pump moves WHOLE as a plain `pub(super) async fn run_pump` (was worker_main) — the only edit is the signature line: no trait object, no Box, no per-frame allocation or indirection. NativeClient + its public impl + Drop + the cfg-gated thread-pin/hot-tid helpers stay in the facade. Visibility bumps are pub(crate) (struct + each field for WorkerArgs/Negotiated/ProbeState; FrameChannel + each method); reject_from_close is pub(crate) (sibling access). No behavior change. Verified: Linux clippy (quic + no-default, -D warnings) + full cargo test; Windows clippy (both) + test --lib; macOS clippy (apple thread-pin variant) + 165 lib tests. On-glass jump-to-live + ABR smoke still owed (pump is a pure relocation, so this is a formality) per the plan's pump gate. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-17 13:29:16 +02:00