2abe8f187221b322cda654a830a21e2d7f33d702
19
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
|
|
2abe8f1872 |
docs(arch): TCP+TLS as first-class owned transport — resolves OQ-60, dissolves OQ-61
ADR-083 revised: TCP+TLS moves from an external sibling loop calling public dispatch to a first-class owned transport via with_tcp_tls(listener, acceptor), running inside run() alongside the quinn and iroh accept loops. The endpoint owns all its accept loops; shutdown() stops them all. The multi-owner shutdown problem (OQ-61) does not arise — dissolved. The reason TCP+TLS was structurally excluded (ADR-010 Am. 1: the endpoint built transports internally, TCP+TLS couldn't fit) is gone after ADR-083 — the endpoint no longer builds transports; it runs accept loops on whatever it's given. TCP+TLS is a listener transport, same shape as quinn and iroh. ADR-010 Amendment 2 supersedes Am. 1's struct-level exclusion. dispatch stays public — but for genuinely external shapes (SSH channels, future WebTransport streams), which are connection-internal multiplexing, not listener transports. The listener-vs-multiplexing distinction is now explicit. OQ-60 resolved: the TCP+TLS loop lives in alknet-core behind a tcp feature (owned by the endpoint); builder functions are inlined by the assembly layer. A alknet-transport crate was rejected — it would contain only trivial builders; the real component (the loop) is in core. Hub- specific composition lives in the hub crate; transport runtimes that any node might need live in core. Updated: ADR-010 (Amendment 2), ADR-082 (TCP+TLS loop location), ADR-083 (revised), core/endpoint.md (struct + dispatch + shutdown), hub/README.md (transport table + assembly example + stale sibling references), tls/README.md (endpoint section + TCP+TLS loop location + references), open-questions.md (OQ-60 resolved, OQ-61 dissolved). Review: zero critical issues, five warnings fixed (stale hub README prose, stale core endpoint.md struct/dispatch listings, stale ADR-082 TCP+TLS loop location, stale TLS README reference entry, hub front-matter date). |
||
|
|
81bde6f28f |
docs(arch): endpoint as pure accept-loop runner + acme-tls/1 guard relocation (ADR-083, OQ-60/61)
ADR-083: AlknetEndpoint becomes a pure accept-loop runner with a public dispatch method. Transport construction moves out of the endpoint — the assembly layer reads StaticConfig, builds transports from TlsServerConfig(s), and hands pre-built quinn/iroh endpoints to the endpoint via with_quinn/with_iroh. TCP+TLS dispatch is first-class (same dispatch path as quinn/iroh); ADR-010 Amendment 1's duplicated-dispatch workaround is retired. StaticConfig stays in core as the assembly-layer config; the endpoint takes only drain_timeout. The acme-tls/1 guard moves from dispatch_quinn to the shared dispatch method — ACME TLS-ALPN-01 challenges arrive over TCP (CAs validate via TCP to port 443, not QUIC), so the guard's quinn-specific location was a latent bug once TCP+TLS exists. The guard is transport-agnostic; the rationale (no handler, silent close) is unchanged. ADR-027 §5 amended. OQ-60: where build_iroh_endpoint lives (assembly layer / alknet-tls helper / transport module). build_quinn_server_config_from_rustls is decided — it moves to alknet-tls as for_quinn() per ADR-082; only build_iroh_endpoint is genuinely undecided. OQ-61: multi-owner shutdown coordination. Boundary committed (endpoint owns dispatched handlers; assembly layer owns spawned accept loops); mechanism open. ADR-082 amended: drops the Arc<TlsServerConfig> endpoint signature (superseded by ADR-083); keeps its scope as the alknet-tls crate's TlsServerConfig + accessors. Review: zero critical issues, five warnings fixed (build_iroh_endpoint destination contradiction, undeclared shutdown_sender, missing ADR-027 amendment marker, underspecified dispatch no-match behavior, stale door-type timing clause). |
||
|
|
192bd0a5a2 |
docs(arch): spec alknet-tls crate — shared TLS config across quinn + TCP+TLS + iroh (ADR-082, OQ-59)
The TLS setup in alknet-core is welded to quinn: build_rustls_server_config produces a rustls::ServerConfig, then build_quinn_server_config_from_rustls consumes it into quinn::ServerConfig — the rustls config is moved, not shareable. ACME is worse: the AcmeState task is spawned inside the quinn endpoint, so a TCP+TLS listener would need a second ACME state machine (two orders for the same domain, two cert caches, Let's Encrypt rate-limit risk). alknet-tls extracts the TLS setup into a shareable TlsServerConfig: - TlsServerConfig::new(identity, alpns) builds the rustls::ServerConfig once (including the ACME state machine if ACME) - for_quinn() clones it for quinn (QuicServerConfig::try_from) - for_tcp_tls() clones it for tokio-rustls (TlsAcceptor::from) - rustls_config() borrows it for any other consumer - One cert, one ACME state machine, N transports TlsIdentity and Ed25519SecretKey stay in core (config types). fingerprint.rs stays in core (shared by server endpoint + client FingerprintPinVerifier in alknet-call — OQ-59 tracks whether it should move; likely stays because moving would force alknet-call to depend on alknet-tls, pulling TLS infra into client-only deployments). iroh shares the key, not the rustls config — iroh has its own TLS built into the Endpoint (takes iroh::SecretKey, not rustls::ServerConfig). alknet-tls has no for_iroh() method; the assembly layer passes Ed25519SecretKey to iroh directly. Feature gates: quinn / tcp / acme as independent opt-ins. rustls always present. tokio-rustls only when tcp. quinn only when quinn. rustls-acme only when acme. Files: - crates/tls/README.md: crate spec (TlsServerConfig API, what moves/ stays, feature gates, deps, behavior-preservation invariants) - decisions/082-alknet-tls-extraction.md: the ADR (Proposed) - questions/059-fingerprint-module-location.md: OQ-59 (should fingerprint.rs stay in core or move to alknet-tls? open, two-way, likely stays) - open-questions.md: OQ-59 added to alknet-core table - README.md: tls doc table row + ADR-082 row added Review (architecture-reviewer): 3 critical (missing build_quinn_server_config_from_rustls in README table, missing futures dep, two TlsServerConfig code blocks disagreed on feature gates), 7 warnings (behavior-preservation invariants: max_early_data_size, aws_lc_rs provider, verifier scheme list, acme-tls/1 ALPN; rustls-pki-types dep; fingerprint.rs rustls-usage imprecision; ADR missing acme-tls/1), 4 suggestions. All criticals and warnings addressed. |
||
|
|
b0cc0a01b7 |
docs(arch): unweld CallClient from QUIC — spawn_dispatch primary, connect convenience (ADR-017 Am. 2026-07-13)
Same fix as ADR-080 (ChannelClient) applied to the call crate. The existing code already had the right structure — spawn_dispatch is not feature-gated (transport-agnostic), connect is #[cfg(feature = "quinn")] — but the docs inverted the framing: connect was 'primary,' spawn_dispatch was 'lower-level.' That welding masked the call protocol's transport-agnosticism (ADR-012 EventEnvelope; ADR-065 from_stream/from_bidi accept any AsyncRead + AsyncWrite). Changes: - client-and-adapters.md: reframe spawn_dispatch as the transport- agnostic primary constructor (one-way door), connect as the QUIC convenience (two-way door, feature-gated on quinn). Mirror the from_connection / connect_quic pattern from ADR-080/channel-client.md. Fix all 'QUIC-backed' / 'over QUIC' / 'opens a QUIC connection' framing to be transport-agnostic. Fix from_call description, adapter location map, exchange-of-operations example, Constraints section. - call-protocol.md: 'runs over QUIC bidirectional streams' → 'runs over any ordered, reliable bidirectional stream.' Fix stream model, stream lifecycle (connection drop / stream reset now list all transports, not just QUIC). Fix CallConnection.connection doc comment. - operation-registry.md: FromCall provenance comment 'QUIC forwarding stub' → 'call-protocol forwarding stub.' Fix from_call description. - call README.md: fix client-and-adapters.md description, fix design principle #11 framing. - ADR-017: add Amendment (2026-07-13) documenting the spawn_dispatch / connect reframe, mirroring ADR-080's amendment. - overview.md, architecture README: update ADR-017 and client-and-adapters.md table summaries. - OQ-015, OQ-007: fix 'opens QUIC connections' / 'bidirectional QUIC streams' framing in resolution text. No code changes — spawn_dispatch and connect already exist with the right feature-gate structure. This is a documentation reframe. |
||
|
|
a26401aadd |
docs(arch): rewrite hub README for multi-transport + channels substrate; add OQ-58 (worker registration)
The hub README predates channels (2026-07-09) and was built on the call-protocol-directly-over-QUIC model: 'One QUIC connection per peer carrying the call protocol,' CallClient::connect as the dial path, QUIC as the only transport. The channels crate replaced that substrate (ADR-071/079/080), and the hub's primary use case (worker provisioning on docker/vast.ai/runpod) requires TCP+TLS for registration and QUIC or TCP+TLS for the ongoing session — coexisting on one hub, not as alternatives. Rewrite: - Multi-transport stated as decided: 'A hub MUST support TCP+TLS and QUIC endpoints simultaneously.' TCP+TLS accept loop (ADR-010 Am. 1) lives in the hub, shares the HandlerRegistry with the quinn endpoint. - Channels substrate: the hub uses ChannelsAdapter/ChannelClient (from_connection primary, connect_quic convenience — ADR-080), not CallClient/CallAdapter directly. One channels connection per peer; CallAdapter runs on channel 0 (ADR-072). - Transport-agnostic dial/accept: dial_worker_connection takes a Connection (one-way door); connect_quic_worker is a two-way-door convenience. supervise_worker takes a dial closure, not a SocketAddr. - Identity over transports: fingerprint path (QUIC+raw-key, X.509 client cert) via resolve_from_fingerprint; bearer-token path (TCP+TLS no client cert, WebTransport, WebSocket) via resolve_from_token on the call first frame. Both resolve to the same PeerEntry (ADR-030/034). - Worker registration flow (6 steps): provision → token → download → key gen → HTTP POST over TCP+TLS → channels connect. Step 4 is HTTP on HttpAdapter; step 6 is channels over QUIC or TCP+TLS. The hub creates a mixed-fingerprint PeerEntry (ADR-034 §3) at registration. - OQ-58: worker registration flow — enrollment-token model, endpoint shape, register_worker API. Open (decision-ready, not blocked), one-way door, high priority. - ADR-081: fix stale references to channels-hub/channels-worker sub-crates (the ADR's Decision says they don't exist; the References section said they did). Review (architecture-reviewer): 3 critical (ADR-081 stale refs; bearer-token extraction flow; assembly example QUIC-only + unspecced into_connection), 7 warnings (registration 'or'→'both', channel/control translation, OQ-52 interim, HubError variant naming, RegistrationError definition, X.509-client-cert prose, adapter ownership phrasing), 5 suggestions. All criticals and warnings #4/#7/#8 addressed; #5/#6/#9/#10 addressed; #11-15 noted as optional. |
||
|
|
73c621bf21 |
docs(arch): unweld ChannelClient from QUIC — from_connection primary, connect_quic convenience (ADR-080 amendment)
The channels protocol is transport-agnostic by design (ADR-071 substrate
modes; ADR-065 unwound the server-side QUIC-welding via
Connection::from_stream/from_bidi). ADR-080 had welded the client-side
one-way-door API to QUIC and masked it as a deferral ('QUIC-only
initially', 'can be generalized later') — anti-patterns #8/#9/#11
(door-type-as-deferral + resolved-with-escape-hatch). 'Can be
generalized later' meant 'can be rewritten later' — the expensive
reversal the one-way-door classification exists to prevent.
Fix: split the constructor surface.
- from_connection(connection: Connection) — transport-agnostic primary,
one-way door. Mirrors server-side ChannelsAdapter::handle(Connection)
and the existing CallClient::spawn_dispatch pattern.
- connect_quic(addr, credentials) — QUIC convenience, two-way door,
additive. Future connect_tcp_tls / connect_webtransport join it
without touching the one-way-door surface.
OQ-55 reframed: the deferred thing is the shared dial+TLS seam
(AlknetClient), not a QUIC-welded client API. The client take-over APIs
(CallClient::spawn_dispatch, ChannelClient::from_connection) are
transport-agnostic and decided; only the shared dial across transports
is blocked on a second transport's dial existing.
Files:
- decisions/080-channelclient.md: amendment section, Decision code
block, Transport-agnostic by construction (replaces QUIC-only
initially), Consequences, Door type, subscribe_resources added to
Decision block (was referenced by Door type but missing)
- crates/channels/channel-client.md: from_connection primary API,
Transport-agnostic by construction section, OQ-55 relationship
- crates/channels/overview.md, crates/channels/README.md,
crates/core/README.md, README.md, open-questions.md,
questions/055-...md: cross-reference summaries aligned
|
||
|
|
2313c51f12 |
docs(arch): add alknet-channels specs — ADRs 071-080, 7 spec docs, OQ-56/57
Phase 1 architecture for alknet-channels (multiplexing proxy on alknet/channels). Grounded in the completed de-risk POC (28 tests) and the landed ADR-070 (BidiStreamSource trait + Connection::from_source). ADRs: - 071: 9-byte chunk wire format (generalizes TTY's 5-byte) - 072: channel 0 pre-negotiated as alknet/call (no special control plane) - 073: channel lifecycle operations on the call protocol — channel/open, close, control, resources/subscribe; direction field pinned; subscribe from day one (not poll-for-v1 — StreamingHandler machinery exists) - 074: ChannelBidiStreamSource implements BidiStreamSource (ADR-070); into_sub_streams() typed accessor for TTY; accept_bi() generic path - 075: ChannelsAdapter + ChannelManager; REQ-CH-01..04 wire invariants - 076: bounded-buffer backpressure (1 MiB), 256-channel cap, monotonic IDs - 077: TTY inside channels uses sub-streams, not own wire format; amends ADR-052 scope to direct-connect TTY; channels feature on tty - 078: two-pump shutdown-on-completion contract (handler-level) - 079: hub relay translates channel 0, byte-forwards data channels - 080: ChannelClient (QUIC-only); AlknetClient core extraction deferred (OQ-55) Spec docs: overview, channels-wire, channels-connection, channels-adapter, channel-operations, channel-client. OQ-56 (full windowing) and OQ-57 (two-pump helper extraction) are genuine deferred(scope) deferrals with concrete blocking conditions; the contracts are decided, only the extensions are deferred. Hedging audit converted three research hedges into decisions: resources/subscribe (not poll), server-assigned IDs (not if-zero-RTT), bounded-buffer (not if-HOL-becomes-a-problem). |
||
|
|
f8f5f27ce0 |
docs(arch): land ADR-070 BidiStreamSource + OQ-55 AlknetClient deferral + impl task
Three core-crate changes surfaced by the alknet-channels POC: - ADR-070: extract BidiStreamSource trait so Connection holds Box<dyn BidiStreamSource> instead of a closed ConnectionKind enum; downstream crates (channels, future transports) implement the trait to add connection shapes without editing core. Public Connection API preserved verbatim. REQ-CORE-02 (close() params clippy warning under --no-default-features) folded in — the signature stays on the trait, non-QUIC impls ignore the args. - OQ-55: AlknetClient / client establishment extraction deferred(scope). Blocked on a second *transport's* real client (not a second QUIC client) — extracting a QUIC-shaped connector now would bake QUIC in as the establishment shape, the same welding ADR-065 unwound on the server side. Each crate builds its own client standalone for now. - core-types.md / auth.md / overview.md / README indexes updated to reflect ADR-070 and OQ-55. Architecture review: zero critical issues. - tasks/core/bidistreamsource-trait.md: the implementation task (Parts 1-3: BidiStreamSource refactor, close() fix, AuthContext::anonymous). |
||
|
|
deea6de38a
|
docs(arch): remove channels from hub spec — channels are research-phase, not specced
The channels concept (docs/research/alknet-channels/phase-0-findings.md) was developed in a separate session and is research-phase, not architecture. The hub spec was inadvertently built assuming a channel model that doesn't exist yet. Changes: - Remove all channels references from hub README (subtitle, channel model section, channel management bullet, channel proxying section, 'does NOT do' bullet, references) - Remove OQ-55 (channel/open operation) — channels research has its own question tracking (OQ-CH-01 through OQ-CH-07) - Hub spec now describes what it actually provides: peer lifecycle, aggregated operation env, service discovery. One QUIC connection per peer carrying the call protocol. No channels, no future multiplexing, no research references. |
||
|
|
5d56bae1ba
|
docs(arch): fix inbound worker hook — callback inside handle(), not post-hoc
- Replace on_worker_connected() post-hoc call with WorkerConnectedCallback that fires inside CallAdapter::handle(). handle() blocks until disconnect — there is no 'after handle accepts' point for the assembly layer to hook into. The callback carries both on_connected (from_call + attach_peer) and on_disconnected (detach_peer + drop channels). - Add CallAdapter::with_worker_connected_callback(callback) builder method. - Consolidate duplicate WorkerConnectedCallback struct definitions. - Fix channel role: 'channel proxying' → 'channel management'. The hub tracks channels; it does not proxy streams. What the caller does with the resulting channel is the assembly layer's business. - Resolve OQ-54: callback is the committed design. Update OQ file and open-questions.md table. |
||
|
|
b38b1d28a7
|
docs(arch): channel model — call protocol as control plane, any ALPN as data plane
Replace the 'future strategies' section with the channel model: - Channel 0 is the call protocol — the universal control plane. Handles operation discovery (from_call), operation routing (invoke_peer), service discovery, and channel negotiation (channel/open, channel/close, channel/list). - Channels 1..N carry any ALPN as data planes. Opened via channel/open on the call protocol. Each channel is a bidirectional QUIC stream, wrapped as Connection::from_bidi (ADR-065), and handed to the same ProtocolHandler::handle() that handles dedicated connections. The handler does not know it's on a multiplexed channel. - Channel negotiation is symmetric — either side can open a channel. Same pattern as from_call: bidirectional, symmetric, negotiated over the call protocol. - The hub's role for channels 1..N is transparent stream proxying. The hub does not interpret the protocol; the client and worker speak the ALPN directly. - Hub struct gains channel tracking (PeerId → ChannelId → ChannelInfo). HubError gains ChannelAlreadyOpen, ChannelNotFound, ChannelOpenFailed. - New OQ-55: channel/open operation spec (deferred to call-protocol implementation phase). |
||
|
|
ab963d0e46 |
docs(arch): resolve OQ-050 — include docker/system/events in v1
Resolve the deferred docker system events subscription question. docker/system/events is now a v1 Subscription operation using the same StreamingHandler pattern already wired for logs, exec, and image/pull. The internal ownership-store subscription for stale-entry cleanup on destroy events is a follow-up refinement. Scrub hedging language from ADR-060 and docker specs: - Remove 'marginal gain' / 'future feature is additive' framing - Replace 'no reaper' / 'not promptly cleaned up' with clean statement that events subscription provides the prompt-cleanup path - Remove stale-entry policy from ADR-060's two-way door classification |
||
|
|
87b2c2a5ef |
docs(arch): hub-wiring cluster — aggregated env, peer_operations, from_call cleanup, alknet-hub crate spec
Three ADRs addressing gaps surfaced by the first hub consumer (alkapi): - ADR-067: Aggregated peer-env wiring — Dispatcher::with_aggregated_env hook so compose_root_env reads a shared PeerCompositeEnv across all calls, not a fresh per-call one. The hub-defining gap (alkapi OQ-08 / G.1). - ADR-068: PeerCompositeEnv::peer_operations override — adds list_operation_names() to OperationEnv, overrides on OverlayOperationEnv and PeerCompositeEnv. Fixes services/list-peers returning empty operation lists for non-local peers (alkapi G.6). - ADR-069: from_call is a manual free function, not auto-wired — reverses the aspirational OQ-27 resolution to match the implementation. Cleans the 'v1 default' hedging language in ADR-017 and client-and-adapters.md (alkapi G.4). New crate spec: alknet-hub — reusable hub pattern (aggregated env, connection lifecycle, worker supervision with backoff, service discovery). Spec fixes: builder API drift (with_local/with_local_streaming separation), ScopedOperationEnv → ScopedPeerEnv type name, OQ count 51→54. Three new OQs: OQ-52 (wait_for_close), OQ-53 (backoff defaults), OQ-54 (inbound hook placement). |
||
|
|
2aa6363e57 |
docs(arch): sync specs to transport generalization sweep (ADR-064, ADR-065)
Three code commits landed a clean sweep discovered when building an
external app against the crates. This syncs the architecture specs to
match the codebase and amends the affected decisions.
ADR-064 (supersedes ADR-005): irpc was never integrated — no .rs file in
the workspace ever imported it. The wire protocol (wire.rs) is hand-rolled
length-prefixed JSON; the EventEnvelope shape was derived from the
@alkdev/pubsub TypeScript prior art (ADR-013), not from irpc. ADR-005's
premise ('irpc as the call protocol foundation') was never implemented as
stated. Superseded with a clear header; the body is kept as historical
record.
ADR-065: Connection::from_stream / from_bidi — Connection now accepts any
AsyncRead + AsyncWrite pair via ConnectionKind::Stream (yield-once
accept_bi contract: QUIC yields many streams, everything else yields one
then ConnectionClosed). Unblocks TCP+TLS, SSH channel dispatch,
WebTransport streams, and wasm streams through the same HandlerRegistry
as QUIC connections, with zero handler code changes. MockConnection /
ConnectionKind::Mock removed (tests use from_stream with sink/empty).
Stream-level Mock variants renamed to Stream (they were already generic).
Amended ADRs: ADR-003 (irpc removed from dep table), ADR-007 (from_stream
opens the server-side door; MockConnection removed), ADR-010 (TCP+TLS can
now dispatch through the registry via from_bidi; iroh 1.0 migration noted).
Updated specs: core-types.md (Connection/SendStream/RecvStream sections),
endpoint.md (TCP section, iroh note), call-protocol.md, operation-registry
(irpc Integration section replaced), overview.md, http-server.md,
webtransport.md, call README. OQ-09 (WASM) resolution amended: the
Connection door is now open via from_stream; the accept-loop runtime door
remains closed (tokio doesn't run on WASM).
See docs/research/transport-generalization/findings.md for the full trace.
|
||
|
|
1ce11717d8 |
docs(arch): draft alknet-docker architecture specs (ADRs 058-063, OQs 048-051)
Greenfield architecture spec set for the alknet-docker crate — a thin, single-host bollard wrapper exposing docker container/image operations as call-protocol ops on the shared alknet/call ALPN, plus a DockerTtyBackend (impl TtyBackend) behind a tty feature for interactive terminal sessions into containers over alknet/tty. Six ADRs: - 058: docker ops on alknet/call (no separate ALPN; raw-carriage handoff dissolved by alknet-tty extraction — interactive attach moved to alknet/tty via DockerTtyBackend, no carriage field on call.requested) - 059: bollard 0.21 (verified current on crates.io) + feature selection (http+pipe+time; no ssl/ssh/websocket/buildkit) - 060: container resource model (ADR-050 application) — alknet.managed/ alknet.owner labels, list owned_only flag, hosted-services operator role via static-resource fallback, handler-driven revoke with autonomous-death tolerance, resource-action vocabulary - 061: DockerTtyBackend in alknet-docker behind tty feature (attach vs exec mode; POC drive_attach_raw as reference) - 062: Docker client + OwnershipStore injection via closure capture (not Capabilities, not OperationContext — matches from_openapi pattern) - 063: exit code on terminal call.responded for non-interactive exec (call.completed stays empty, ADR-012 unchanged) Four spec docs (crates/docker/): README, overview, docker-operations, docker-tty-backend. Four deferred-scope OQs (048-051): network/volume ops, buildkit, system events subscription, create options surface. Updates the tty-backend.md Backend implementations table (DockerTtyBackend row now specced) and the architecture README (doc table, ADR table, current-state paragraph, OQ count). Grounded in the alknet-docker POC (docs/research/alknet-docker/poc-summary.md) which validated the hard parts; the remaining lifecycle ops are mechanical bollard wrapping. Reviewed by architecture-reviewer subagent; criticals (the docker_client injection model conflicting with the Capabilities contract) resolved via ADR-062/063 before commit. |
||
|
|
25f0f55592 |
docs(arch): alknet-tty spec sanity-check fixes — TtyControlHandle newtype (C1), backend cleanup contract (W1, ADR-056), clarifications (S1-S5)
C1: Box<dyn TtyControl + Clone> does not compile (Clone is not object-safe). Replace with a TtyControlHandle newtype: #[derive(Clone)] wrapping Arc<dyn TtyControl + Send + Sync>. The trait stays object-safe; the newtype carries the Clone-ability. Updated across tty-backend.md, ADR-053, OQ-43, and the tty README. W1: 'Drop is the cleanup, threads exit on channel close' was false for the local PTY waiter thread (blocked in Child::wait(), does not observe channel close) — a child that ignores stdin EOF would be orphaned on session cancel. New ADR-056 commits a backend cleanup contract: dropping the exit_code future MUST kill the session target. The local backend implements it via a ChildKiller held in the exit_code future's Drop guard (disarmed on resolve). Corrected the lifecycle section in tty-adapter.md, added the mechanism + constraint to tty-local.md, and referenced ADR-056 from tty-backend.md, overview.md, both READMEs. S1: error-frame < 16 MiB stated as a wire-format invariant (not an assumption) so the 0x00-first-byte disambiguation trick is sound by construction. S2: carriage field validation (MUST be "raw" in v1, else malformed_negotiation) specified. S3: NegotiateRequest + TerminalParamsWire Rust structs added with serde defaults and validation rules. S4: modes field annotated 'backends MUST ignore content in v1' in both tty-backend.md and ADR-053. S5: AsyncWrite/Stream qualified with crate origins (tokio::io, futures_core) in the TtyHandle struct definitions. |
||
|
|
db4da1e6f0 |
docs(arch): resolve OQ-45 — no application-level windowing; QUIC per-stream flow control suffices
The backpressure chain is complete by construction: QUIC flow control
→ bounded drainer channel → bounded stdout channel → OS pipe/PTY buffer
→ process write() blocks. Every link awaits its producer; no unbounded
buffer breaks the chain. The reversal path (an additive ControlMessage
variant, not a wire-format header change) is noted in ADR-052's
consequences as a two-way door, not the expected path.
Tightened ADR-052 assumption 1 from a hedge ('expected to work; a POC
would confirm') to a decided constraint. Updated all OQ-45 references
across the tty spec docs from 'open (low risk)' to 'resolved'.
|
||
|
|
df5d04af1d |
tasks(arch): adopt taskgraph for architecture work — blocker tasks for deferred OQs, level mapping, status fixes
Establishes the tasks/architecture/ blocker-task half of the Safe Exit protocol. Each deferred OQ now has an external-trigger tracker task representing its unblocking condition, and the OQ's Blocked on field names the tracker task ID — closing the gap where the deferral field existed but the task-graph half was unenforced. Changes: - Add 6 external-trigger tracker tasks for the deferred OQs (OQ-09, 10, 32, 41, 44, 46) under tasks/architecture/, tagged [external-trigger, deferred-oq] - Add structured Blocked on field to OQ-09 and OQ-10 (previously used legacy 'deferred' status with the reason in the Resolution prose); index now surfaces all 6 deferred OQs with concrete conditions, no placeholders - Document the architecture-task level mapping (level: implementation for ADRs/specs, decomposition for spec-to-ADR breakdown, planning for backlog seeding, research/review direct fits) and the deferred-OQ blocker-task pattern in docs/sdd_process.md - Mark architecture/safe-exit-blocker-task-mechanism and architecture/oq-09-10-blocking-conditions completed (implemented by this pass) - Fix 4 pre-existing ADR-050 implementation tasks: status: done → completed (taskgraph enum is 'completed', not 'done') — taskgraph validate now passes for all 100 tasks |
||
|
|
1baa619ce9 |
docs(arch): decompose open-questions.md into per-OQ files under questions/
The monolithic open-questions.md (1310 lines, 47 OQs) was large enough to be unmanageable, with high size variance (OQ-42 at 220 lines next to OQ-06 at 8). Decomposed into one file per OQ under docs/architecture/questions/ (NNN-slug.md, mirroring the ADR convention), with open-questions.md retained as the index: theme-grouped tables plus a cross-theme Deferred/Blocked section that surfaces the 6 deferred OQs with their Blocked-on conditions inline (the safe-exit visibility surface). Per-OQ content moved verbatim; all 62 inbound links stay valid (none used anchors). README's curated OQ summary dropped (now redundant with the index tables). Also seeds tasks/architecture/ with this task plus two follow-ups found during the decompose: OQ-09/10 missing structured Blocked-on fields, and the tasks/architecture/ blocker-task half of the Safe Exit protocol being unenforced. |