Files
vdm/daemon/tests/event_hub_test.cpp
T
samiandClaude Sonnet 5 824fa481bb daemon: event.* fan-out (D5) + category.list/queue.list (D3) — GUI-ready
The two items aimed at pointing GUI at a real veloxd instead of mockd.

rpc/event_hub — per-subscription fan-out shared by both transports.
subscribe() registers a connection with no interest; set_filter()
(session.subscribe, replaces not adds) turns on event kinds and an
optional per-task id filter; publish() delivers a pre-built
notification to every matching subscriber. session.subscribe on both
UdsServer and WsServer now does the real thing — registers/updates a
subscription, tears it down in close_conn.

sched/scheduler — the on_engine_state hook now actually publishes:
- transition() is the one place a task's row changes state; it reads
  the store's own prior row for previousState (authoritative
  regardless of engine/scheduler timing), writes the error columns,
  and — when a hub is supplied — publishes event.task.state with
  {taskId, state, previousState, summary, error}. Wired into every
  transition: scheduler-driven (admission -> probing, resume ->
  connecting, pause) and engine-reported (on_engine_state).
- progress_snapshot(): one row per task the engine is tracking
  (EnginePort::progress(), a new interface method backed by
  DownloadHandle::progress()), plus a store side-effect
  (Tasks::update_progress) so download.list/get stay current between
  state transitions. Returns rows; does NOT publish itself — batching
  into one array message is the caller's job, per the schema's
  x-maxRateHz: 4 and AGENT-DAEMON.md item 5 ("one message per task per
  tick burns a core"). main.cpp's 250 ms timerfd is that caller: one
  event.task.progress per tick, only when there's something to say.

dispatcher::on_download_add now publishes event.task.added (schema:
"summary is always present so a client can insert the row without a
follow-up download.get").

store/categories, store/queues — the two D3 handlers GUI's panels
call. category.list projects the six seeded built-ins; queue.list
derives taskIds from tasks.queue_id/queue_position (Queue's own schema
note: a queue's stored row never carries membership, download.update
/ queue.reorder do).

Verified live end to end against tools/testserver: a subscribed client
sees event.task.added on add, then the full event.task.state sequence
(queued -> probing -> connecting -> downloading -> assembling ->
verifying -> complete) with correct previousState at every step, and
real category.list / queue.list results.

Tests: event_hub (filter-by-kind, filter-by-task-id, replace-not-add,
unsubscribe), store_categories_queues, plus new sched_scheduler cases
for event.task.state publishing and progress_snapshot's store
side-effect. 38 daemon/cli tests green; sched_scheduler / event_hub /
ws_server / uds_roundtrip TSan-clean.

deferrals.md: D5 mostly closed (event.task.removed and the
still-unpublished events wait on their owning D3 handlers); D3 down to
the remaining download.* verbs, rules/settings/limiter/schedule,
queue mutation, category mutation, grabber, media.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Upd9WhG9oppieig5nRDLig
2026-09-11 07:19:11 +04:00

69 lines
3.0 KiB
C++

#include "rpc/event_hub.hpp"
#include <nlohmann/json.hpp>
#include "check.hpp"
using velox::daemon::rpc::EventHub;
namespace proto = velox::proto;
void run() {
EventHub hub;
// --- no subscribers: publish is a no-op, not an error --------------------------
hub.publish(proto::Event::TaskAdded, nlohmann::json{{"x", 1}});
// --- a subscription with no filter set receives nothing -------------------
std::vector<nlohmann::json> a;
const auto sub_a = hub.subscribe([&](const nlohmann::json& n) { a.push_back(n); });
hub.publish(proto::Event::TaskAdded, nlohmann::json{{"n", 1}});
CHECK_EQ(a.size(), 0u);
// --- filtering by event kind ------------------------------------------------
hub.set_filter(sub_a, {proto::Event::TaskAdded}, std::nullopt);
hub.publish(proto::Event::TaskAdded, nlohmann::json{{"n", 2}});
hub.publish(proto::Event::TaskRemoved, nlohmann::json{{"n", 3}}); // not subscribed
CHECK_EQ(a.size(), 1u);
CHECK_EQ(a[0]["n"].get<int>(), 2);
// --- two subscribers, independent filters -----------------------------------
std::vector<nlohmann::json> b;
const auto sub_b = hub.subscribe([&](const nlohmann::json& n) { b.push_back(n); });
hub.set_filter(sub_b, {proto::Event::TaskRemoved}, std::nullopt);
hub.publish(proto::Event::TaskAdded, nlohmann::json{{"n", 4}});
hub.publish(proto::Event::TaskRemoved, nlohmann::json{{"n", 5}});
CHECK_EQ(a.size(), 2u); // got the TaskAdded
CHECK_EQ(b.size(), 1u); // got the TaskRemoved
CHECK_EQ(b[0]["n"].get<int>(), 5);
// --- per-task filter: only the named ids reach the subscriber ---------------
std::vector<nlohmann::json> c;
const auto sub_c = hub.subscribe([&](const nlohmann::json& n) { c.push_back(n); });
hub.set_filter(sub_c, {proto::Event::TaskState},
std::vector<std::string>{"t1", "t2"});
hub.publish(proto::Event::TaskState, nlohmann::json{{"n", 6}}, "t1");
hub.publish(proto::Event::TaskState, nlohmann::json{{"n", 7}}, "t9"); // filtered out
hub.publish(proto::Event::TaskState, nlohmann::json{{"n", 8}}, "t2");
CHECK_EQ(c.size(), 2u);
CHECK_EQ(c[0]["n"].get<int>(), 6);
CHECK_EQ(c[1]["n"].get<int>(), 8);
// --- a non-task-scoped publish (no task_id) reaches a task-filtered sub too --
// (matches "session.subscribe narrows task events" — a global event isn't one)
hub.publish(proto::Event::TaskState, nlohmann::json{{"n", 9}});
CHECK_EQ(c.size(), 3u);
// --- set_filter replaces, it does not add -----------------------------------
hub.set_filter(sub_a, {proto::Event::TaskRemoved}, std::nullopt);
hub.publish(proto::Event::TaskAdded, nlohmann::json{{"n", 10}});
CHECK_EQ(a.size(), 2u); // still 2 -- TaskAdded no longer reaches sub_a
// --- unsubscribe stops delivery ------------------------------------------
hub.unsubscribe(sub_b);
hub.publish(proto::Event::TaskRemoved, nlohmann::json{{"n", 11}});
CHECK_EQ(b.size(), 1u); // unchanged
CHECK_EQ(a.size(), 3u); // sub_a still gets TaskRemoved
}
TEST_MAIN()