Extract listener lifecycle from processor

This commit is contained in:
Meta Vens 2026-05-17 21:26:28 +01:00
commit 72d12ddfb2
5 changed files with 543 additions and 534 deletions

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@ -52,6 +52,7 @@ remembers doctrine; the branch remembers the blade.
- Thread resume/fork orchestration now lives in `codex_message_processor/thread_resume_routes.rs`; it owns resume from history/rollout, running-thread resume response replay, persisted resume metadata hydration, fork response construction, and the shared thread-title attachment helper. The root processor is about 4,336 lines.
- Thread start route handling now lives in `codex_message_processor/thread_start_routes.rs`; the route shell delegates to the root lifecycle `thread_start_task`. The root processor is about 4,250 lines.
- Turn control routes now live in `codex_message_processor/turn_routes.rs`: turn start, thread item injection, app-server client info setting, turn steer, and turn interrupt. The root processor is about 3,803 lines.
- Listener/subscription lifecycle now lives in `codex_message_processor/listener_lifecycle.rs`: connection attach/detach, listener startup, idle unload, unsubscribe, teardown, and archive preparation. The root processor is about 3,275 lines.
- The May 2026 foundation migration in `notes/epiphany-ideal-architecture-rebuild-plan.md` is complete enough to defend. Read `notes/epiphany-architectural-teardown.md` before touching Epiphany control-plane code, but do not treat it as an open-ended excuse to keep shaving the altar. The rebuild moved scene projection, freshness derivation, pressure policy, targeted context shards, bounded graph traversal, job/progress view derivation, planning view derivation, reorientation resume/regather verdict policy, pure CRRC recommendation policy, fixed-lane coordinator decision policy, role-board projection policy, role/reorient result interpretation, role self-persistence review policy, and role/reorient acceptance bundle policy into `epiphany-core`; typed acceptance receipts replaced summary-string identity for live accept paths, runtime links are dual-written on launch, and result read-back now prefers runtime links.
- Read `notes/epiphany-ideal-architecture-rebuild-plan.md` immediately after the teardown. It defines the smallest coherent replacement architecture: durable `EpiphanyState`, runtime-spine-owned `RuntimeState`, separate role memory/heartbeat state, `epiphany-core` as policy owner, app-server as adapter, Aquarium as reflector, typed acceptance receipts, and derived view lenses instead of a protocol verb zoo.
- Do not continue Aquarium UI, bridge, Face, or dogfood expansion until the teardown has a source-grounded cleanup slice plan. Epiphany is the foundation; patches on patches are not a purification rite, they are how the altar becomes load-bearing garbage.

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@ -4,6 +4,7 @@ mod command_routes;
mod epiphany_automation;
mod epiphany_mutation_routes;
mod epiphany_read_routes;
mod listener_lifecycle;
mod mcp_routes;
mod realtime_routes;
mod review_routes;
@ -1533,67 +1534,6 @@ impl CodexMessageProcessor {
}
}
pub(crate) fn thread_created_receiver(&self) -> broadcast::Receiver<ThreadId> {
self.thread_manager.subscribe_thread_created()
}
pub(crate) async fn connection_initialized(&self, connection_id: ConnectionId) {
self.thread_state_manager
.connection_initialized(connection_id)
.await;
}
pub(crate) async fn connection_closed(&self, connection_id: ConnectionId) {
self.command_exec_manager
.connection_closed(connection_id)
.await;
let thread_ids = self
.thread_state_manager
.remove_connection(connection_id)
.await;
for thread_id in thread_ids {
if self.thread_manager.get_thread(thread_id).await.is_err() {
// Reconcile stale app-server bookkeeping when the thread has already been
// removed from the core manager.
self.finalize_thread_teardown(thread_id).await;
}
}
}
pub(crate) fn subscribe_running_assistant_turn_count(&self) -> watch::Receiver<usize> {
self.thread_watch_manager.subscribe_running_turn_count()
}
/// Best-effort: ensure initialized connections are subscribed to this thread.
pub(crate) async fn try_attach_thread_listener(
&self,
thread_id: ThreadId,
connection_ids: Vec<ConnectionId>,
) {
if let Ok(thread) = self.thread_manager.get_thread(thread_id).await {
let config_snapshot = thread.config_snapshot().await;
let loaded_thread =
build_thread_from_snapshot(thread_id, &config_snapshot, thread.rollout_path());
self.thread_watch_manager.upsert_thread(loaded_thread).await;
}
for connection_id in connection_ids {
Self::log_listener_attach_result(
self.ensure_conversation_listener(
thread_id,
connection_id,
/*raw_events_enabled*/ false,
ApiVersion::V2,
)
.await,
thread_id,
connection_id,
"thread",
);
}
}
async fn get_thread_summary(
&self,
request_id: ConnectionRequestId,
@ -1804,474 +1744,6 @@ impl CodexMessageProcessor {
self.outgoing.send_error(request_id, error).await;
}
async fn wait_for_thread_shutdown(thread: &Arc<CodexThread>) -> ThreadShutdownResult {
match tokio::time::timeout(Duration::from_secs(10), thread.shutdown_and_wait()).await {
Ok(Ok(())) => ThreadShutdownResult::Complete,
Ok(Err(_)) => ThreadShutdownResult::SubmitFailed,
Err(_) => ThreadShutdownResult::TimedOut,
}
}
async fn finalize_thread_teardown(&self, thread_id: ThreadId) {
self.pending_thread_unloads.lock().await.remove(&thread_id);
self.outgoing
.cancel_requests_for_thread(thread_id, /*error*/ None)
.await;
self.thread_state_manager
.remove_thread_state(thread_id)
.await;
self.epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
self.thread_watch_manager
.remove_thread(&thread_id.to_string())
.await;
}
async fn unload_thread_without_subscribers(
thread_manager: Arc<ThreadManager>,
outgoing: Arc<OutgoingMessageSender>,
pending_thread_unloads: Arc<Mutex<HashSet<ThreadId>>>,
thread_state_manager: ThreadStateManager,
thread_watch_manager: ThreadWatchManager,
epiphany_invalidation_manager: EpiphanyInvalidationManager,
thread_id: ThreadId,
thread: Arc<CodexThread>,
) {
info!("thread {thread_id} has no subscribers and is idle; shutting down");
// Any pending app-server -> client requests for this thread can no longer be
// answered; cancel their callbacks before shutdown/unload.
outgoing
.cancel_requests_for_thread(thread_id, /*error*/ None)
.await;
thread_state_manager.remove_thread_state(thread_id).await;
epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
tokio::spawn(async move {
match Self::wait_for_thread_shutdown(&thread).await {
ThreadShutdownResult::Complete => {
if thread_manager.remove_thread(&thread_id).await.is_none() {
info!("thread {thread_id} was already removed before teardown finalized");
epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
thread_watch_manager
.remove_thread(&thread_id.to_string())
.await;
pending_thread_unloads.lock().await.remove(&thread_id);
return;
}
epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
thread_watch_manager
.remove_thread(&thread_id.to_string())
.await;
let notification = ThreadClosedNotification {
thread_id: thread_id.to_string(),
};
outgoing
.send_server_notification(ServerNotification::ThreadClosed(notification))
.await;
pending_thread_unloads.lock().await.remove(&thread_id);
}
ThreadShutdownResult::SubmitFailed => {
pending_thread_unloads.lock().await.remove(&thread_id);
warn!("failed to submit Shutdown to thread {thread_id}");
}
ThreadShutdownResult::TimedOut => {
pending_thread_unloads.lock().await.remove(&thread_id);
warn!("thread {thread_id} shutdown timed out; leaving thread loaded");
}
}
});
}
async fn thread_unsubscribe(
&self,
request_id: ConnectionRequestId,
params: ThreadUnsubscribeParams,
) {
let thread_id = match ThreadId::from_string(&params.thread_id) {
Ok(id) => id,
Err(err) => {
self.send_invalid_request_error(request_id, format!("invalid thread id: {err}"))
.await;
return;
}
};
if self.thread_manager.get_thread(thread_id).await.is_err() {
// Reconcile stale app-server bookkeeping when the thread has already been
// removed from the core manager. This keeps loaded-status/subscription state
// consistent with the source of truth before reporting NotLoaded.
self.finalize_thread_teardown(thread_id).await;
self.outgoing
.send_response(
request_id,
ThreadUnsubscribeResponse {
status: ThreadUnsubscribeStatus::NotLoaded,
},
)
.await;
return;
};
let was_subscribed = self
.thread_state_manager
.unsubscribe_connection_from_thread(thread_id, request_id.connection_id)
.await;
let status = if was_subscribed {
ThreadUnsubscribeStatus::Unsubscribed
} else {
ThreadUnsubscribeStatus::NotSubscribed
};
self.outgoing
.send_response(request_id, ThreadUnsubscribeResponse { status })
.await;
}
async fn prepare_thread_for_archive(&self, thread_id: ThreadId) {
// If the thread is active, request shutdown and wait briefly.
let removed_conversation = self.thread_manager.remove_thread(&thread_id).await;
if let Some(conversation) = removed_conversation {
info!("thread {thread_id} was active; shutting down");
match Self::wait_for_thread_shutdown(&conversation).await {
ThreadShutdownResult::Complete => {}
ThreadShutdownResult::SubmitFailed => {
error!(
"failed to submit Shutdown to thread {thread_id}; proceeding with archive"
);
}
ThreadShutdownResult::TimedOut => {
warn!("thread {thread_id} shutdown timed out; proceeding with archive");
}
}
}
self.finalize_thread_teardown(thread_id).await;
}
async fn ensure_conversation_listener(
&self,
conversation_id: ThreadId,
connection_id: ConnectionId,
raw_events_enabled: bool,
api_version: ApiVersion,
) -> Result<EnsureConversationListenerResult, JSONRPCErrorError> {
Self::ensure_conversation_listener_task(
ListenerTaskContext {
thread_manager: Arc::clone(&self.thread_manager),
thread_state_manager: self.thread_state_manager.clone(),
outgoing: Arc::clone(&self.outgoing),
pending_thread_unloads: Arc::clone(&self.pending_thread_unloads),
analytics_events_client: self.analytics_events_client.clone(),
general_analytics_enabled: self.config.features.enabled(Feature::GeneralAnalytics),
thread_watch_manager: self.thread_watch_manager.clone(),
epiphany_invalidation_manager: self.epiphany_invalidation_manager.clone(),
fallback_model_provider: self.config.model_provider_id.clone(),
codex_home: self.config.codex_home.to_path_buf(),
},
conversation_id,
connection_id,
raw_events_enabled,
api_version,
)
.await
}
#[expect(
clippy::await_holding_invalid_type,
reason = "listener subscription must be serialized against pending thread unloads"
)]
async fn ensure_conversation_listener_task(
listener_task_context: ListenerTaskContext,
conversation_id: ThreadId,
connection_id: ConnectionId,
raw_events_enabled: bool,
api_version: ApiVersion,
) -> Result<EnsureConversationListenerResult, JSONRPCErrorError> {
let conversation = match listener_task_context
.thread_manager
.get_thread(conversation_id)
.await
{
Ok(conv) => conv,
Err(_) => {
return Err(JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,
message: format!("thread not found: {conversation_id}"),
data: None,
});
}
};
let thread_state = {
let pending_thread_unloads = listener_task_context.pending_thread_unloads.lock().await;
if pending_thread_unloads.contains(&conversation_id) {
return Err(JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,
message: format!(
"thread {conversation_id} is closing; retry after the thread is closed"
),
data: None,
});
}
let Some(thread_state) = listener_task_context
.thread_state_manager
.try_ensure_connection_subscribed(
conversation_id,
connection_id,
raw_events_enabled,
)
.await
else {
return Ok(EnsureConversationListenerResult::ConnectionClosed);
};
thread_state
};
if let Err(error) = Self::ensure_listener_task_running_task(
listener_task_context.clone(),
conversation_id,
conversation,
thread_state,
api_version,
)
.await
{
let _ = listener_task_context
.thread_state_manager
.unsubscribe_connection_from_thread(conversation_id, connection_id)
.await;
return Err(error);
}
Ok(EnsureConversationListenerResult::Attached)
}
fn log_listener_attach_result(
result: Result<EnsureConversationListenerResult, JSONRPCErrorError>,
thread_id: ThreadId,
connection_id: ConnectionId,
thread_kind: &'static str,
) {
match result {
Ok(EnsureConversationListenerResult::Attached) => {}
Ok(EnsureConversationListenerResult::ConnectionClosed) => {
tracing::debug!(
thread_id = %thread_id,
connection_id = ?connection_id,
"skipping auto-attach for closed connection"
);
}
Err(err) => {
tracing::warn!(
"failed to attach listener for {thread_kind} {thread_id}: {message}",
message = err.message
);
}
}
}
async fn ensure_listener_task_running(
&self,
conversation_id: ThreadId,
conversation: Arc<CodexThread>,
thread_state: Arc<Mutex<ThreadState>>,
api_version: ApiVersion,
) -> Result<(), JSONRPCErrorError> {
Self::ensure_listener_task_running_task(
ListenerTaskContext {
thread_manager: Arc::clone(&self.thread_manager),
thread_state_manager: self.thread_state_manager.clone(),
outgoing: Arc::clone(&self.outgoing),
pending_thread_unloads: Arc::clone(&self.pending_thread_unloads),
analytics_events_client: self.analytics_events_client.clone(),
general_analytics_enabled: self.config.features.enabled(Feature::GeneralAnalytics),
thread_watch_manager: self.thread_watch_manager.clone(),
epiphany_invalidation_manager: self.epiphany_invalidation_manager.clone(),
fallback_model_provider: self.config.model_provider_id.clone(),
codex_home: self.config.codex_home.to_path_buf(),
},
conversation_id,
conversation,
thread_state,
api_version,
)
.await
}
async fn ensure_listener_task_running_task(
listener_task_context: ListenerTaskContext,
conversation_id: ThreadId,
conversation: Arc<CodexThread>,
thread_state: Arc<Mutex<ThreadState>>,
api_version: ApiVersion,
) -> Result<(), JSONRPCErrorError> {
let (cancel_tx, mut cancel_rx) = oneshot::channel();
let Some(mut unloading_state) = UnloadingState::new(
&listener_task_context,
conversation_id,
THREAD_UNLOADING_DELAY,
)
.await
else {
return Err(JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,
message: format!(
"thread {conversation_id} is closing; retry after the thread is closed"
),
data: None,
});
};
let (mut listener_command_rx, listener_generation) = {
let mut thread_state = thread_state.lock().await;
if thread_state.listener_matches(&conversation) {
return Ok(());
}
thread_state.set_listener(cancel_tx, &conversation)
};
let ListenerTaskContext {
outgoing,
thread_manager,
thread_state_manager,
pending_thread_unloads,
analytics_events_client: _,
general_analytics_enabled: _,
thread_watch_manager,
epiphany_invalidation_manager,
fallback_model_provider,
codex_home,
} = listener_task_context;
let outgoing_for_task = Arc::clone(&outgoing);
tokio::spawn(async move {
loop {
tokio::select! {
biased;
_ = &mut cancel_rx => {
// Listener was superseded or the thread is being torn down.
break;
}
listener_command = listener_command_rx.recv() => {
let Some(listener_command) = listener_command else {
break;
};
handle_thread_listener_command(
conversation_id,
&conversation,
codex_home.as_path(),
&thread_state_manager,
&thread_state,
&thread_watch_manager,
&outgoing_for_task,
&pending_thread_unloads,
listener_command,
)
.await;
}
event = conversation.next_event() => {
let event = match event {
Ok(event) => event,
Err(err) => {
tracing::warn!("thread.next_event() failed with: {err}");
break;
}
};
// Track the event before emitting any typed
// translations so thread-local state such as raw event
// opt-in stays synchronized with the conversation.
let raw_events_enabled = {
let mut thread_state = thread_state.lock().await;
thread_state.track_current_turn_event(&event.msg);
thread_state.experimental_raw_events
};
let subscribed_connection_ids = thread_state_manager
.subscribed_connection_ids(conversation_id)
.await;
let thread_outgoing = ThreadScopedOutgoingMessageSender::new(
outgoing_for_task.clone(),
subscribed_connection_ids,
conversation_id,
);
if let EventMsg::RawResponseItem(raw_response_item_event) = &event.msg
&& !raw_events_enabled
{
maybe_emit_hook_prompt_item_completed(
api_version,
conversation_id,
&event.id,
&raw_response_item_event.item,
&thread_outgoing,
)
.await;
continue;
}
apply_bespoke_event_handling(
event.clone(),
conversation_id,
conversation.clone(),
thread_manager.clone(),
listener_task_context
.general_analytics_enabled
.then(|| listener_task_context.analytics_events_client.clone()),
thread_outgoing,
thread_state.clone(),
thread_watch_manager.clone(),
epiphany_invalidation_manager.clone(),
api_version,
fallback_model_provider.clone(),
codex_home.as_path(),
)
.await;
}
unloading_watchers_open = unloading_state.wait_for_unloading_trigger() => {
if !unloading_watchers_open {
break;
}
if !unloading_state.should_unload_now() {
continue;
}
if matches!(conversation.agent_status().await, AgentStatus::Running) {
unloading_state.note_thread_activity_observed();
continue;
}
{
let mut pending_thread_unloads = pending_thread_unloads.lock().await;
if pending_thread_unloads.contains(&conversation_id) {
continue;
}
if !unloading_state.should_unload_now() {
continue;
}
pending_thread_unloads.insert(conversation_id);
}
Self::unload_thread_without_subscribers(
thread_manager.clone(),
outgoing_for_task.clone(),
pending_thread_unloads.clone(),
thread_state_manager.clone(),
thread_watch_manager.clone(),
epiphany_invalidation_manager.clone(),
conversation_id,
conversation.clone(),
)
.await;
break;
}
}
}
let mut thread_state = thread_state.lock().await;
if thread_state.listener_generation == listener_generation {
thread_state.clear_listener();
}
});
Ok(())
}
async fn resolve_rollout_path(
&self,
conversation_id: ThreadId,

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@ -0,0 +1,535 @@
use super::*;
impl CodexMessageProcessor {
pub(crate) fn thread_created_receiver(&self) -> broadcast::Receiver<ThreadId> {
self.thread_manager.subscribe_thread_created()
}
pub(crate) async fn connection_initialized(&self, connection_id: ConnectionId) {
self.thread_state_manager
.connection_initialized(connection_id)
.await;
}
pub(crate) async fn connection_closed(&self, connection_id: ConnectionId) {
self.command_exec_manager
.connection_closed(connection_id)
.await;
let thread_ids = self
.thread_state_manager
.remove_connection(connection_id)
.await;
for thread_id in thread_ids {
if self.thread_manager.get_thread(thread_id).await.is_err() {
// Reconcile stale app-server bookkeeping when the thread has already been
// removed from the core manager.
self.finalize_thread_teardown(thread_id).await;
}
}
}
pub(crate) fn subscribe_running_assistant_turn_count(&self) -> watch::Receiver<usize> {
self.thread_watch_manager.subscribe_running_turn_count()
}
/// Best-effort: ensure initialized connections are subscribed to this thread.
pub(crate) async fn try_attach_thread_listener(
&self,
thread_id: ThreadId,
connection_ids: Vec<ConnectionId>,
) {
if let Ok(thread) = self.thread_manager.get_thread(thread_id).await {
let config_snapshot = thread.config_snapshot().await;
let loaded_thread =
build_thread_from_snapshot(thread_id, &config_snapshot, thread.rollout_path());
self.thread_watch_manager.upsert_thread(loaded_thread).await;
}
for connection_id in connection_ids {
Self::log_listener_attach_result(
self.ensure_conversation_listener(
thread_id,
connection_id,
/*raw_events_enabled*/ false,
ApiVersion::V2,
)
.await,
thread_id,
connection_id,
"thread",
);
}
}
pub(super) async fn wait_for_thread_shutdown(
thread: &Arc<CodexThread>,
) -> ThreadShutdownResult {
match tokio::time::timeout(Duration::from_secs(10), thread.shutdown_and_wait()).await {
Ok(Ok(())) => ThreadShutdownResult::Complete,
Ok(Err(_)) => ThreadShutdownResult::SubmitFailed,
Err(_) => ThreadShutdownResult::TimedOut,
}
}
pub(super) async fn finalize_thread_teardown(&self, thread_id: ThreadId) {
self.pending_thread_unloads.lock().await.remove(&thread_id);
self.outgoing
.cancel_requests_for_thread(thread_id, /*error*/ None)
.await;
self.thread_state_manager
.remove_thread_state(thread_id)
.await;
self.epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
self.thread_watch_manager
.remove_thread(&thread_id.to_string())
.await;
}
pub(super) async fn unload_thread_without_subscribers(
thread_manager: Arc<ThreadManager>,
outgoing: Arc<OutgoingMessageSender>,
pending_thread_unloads: Arc<Mutex<HashSet<ThreadId>>>,
thread_state_manager: ThreadStateManager,
thread_watch_manager: ThreadWatchManager,
epiphany_invalidation_manager: EpiphanyInvalidationManager,
thread_id: ThreadId,
thread: Arc<CodexThread>,
) {
info!("thread {thread_id} has no subscribers and is idle; shutting down");
// Any pending app-server -> client requests for this thread can no longer be
// answered; cancel their callbacks before shutdown/unload.
outgoing
.cancel_requests_for_thread(thread_id, /*error*/ None)
.await;
thread_state_manager.remove_thread_state(thread_id).await;
epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
tokio::spawn(async move {
match Self::wait_for_thread_shutdown(&thread).await {
ThreadShutdownResult::Complete => {
if thread_manager.remove_thread(&thread_id).await.is_none() {
info!("thread {thread_id} was already removed before teardown finalized");
epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
thread_watch_manager
.remove_thread(&thread_id.to_string())
.await;
pending_thread_unloads.lock().await.remove(&thread_id);
return;
}
epiphany_invalidation_manager
.remove_thread(&thread_id.to_string())
.await;
thread_watch_manager
.remove_thread(&thread_id.to_string())
.await;
let notification = ThreadClosedNotification {
thread_id: thread_id.to_string(),
};
outgoing
.send_server_notification(ServerNotification::ThreadClosed(notification))
.await;
pending_thread_unloads.lock().await.remove(&thread_id);
}
ThreadShutdownResult::SubmitFailed => {
pending_thread_unloads.lock().await.remove(&thread_id);
warn!("failed to submit Shutdown to thread {thread_id}");
}
ThreadShutdownResult::TimedOut => {
pending_thread_unloads.lock().await.remove(&thread_id);
warn!("thread {thread_id} shutdown timed out; leaving thread loaded");
}
}
});
}
pub(super) async fn thread_unsubscribe(
&self,
request_id: ConnectionRequestId,
params: ThreadUnsubscribeParams,
) {
let thread_id = match ThreadId::from_string(&params.thread_id) {
Ok(id) => id,
Err(err) => {
self.send_invalid_request_error(request_id, format!("invalid thread id: {err}"))
.await;
return;
}
};
if self.thread_manager.get_thread(thread_id).await.is_err() {
// Reconcile stale app-server bookkeeping when the thread has already been
// removed from the core manager. This keeps loaded-status/subscription state
// consistent with the source of truth before reporting NotLoaded.
self.finalize_thread_teardown(thread_id).await;
self.outgoing
.send_response(
request_id,
ThreadUnsubscribeResponse {
status: ThreadUnsubscribeStatus::NotLoaded,
},
)
.await;
return;
};
let was_subscribed = self
.thread_state_manager
.unsubscribe_connection_from_thread(thread_id, request_id.connection_id)
.await;
let status = if was_subscribed {
ThreadUnsubscribeStatus::Unsubscribed
} else {
ThreadUnsubscribeStatus::NotSubscribed
};
self.outgoing
.send_response(request_id, ThreadUnsubscribeResponse { status })
.await;
}
pub(super) async fn prepare_thread_for_archive(&self, thread_id: ThreadId) {
// If the thread is active, request shutdown and wait briefly.
let removed_conversation = self.thread_manager.remove_thread(&thread_id).await;
if let Some(conversation) = removed_conversation {
info!("thread {thread_id} was active; shutting down");
match Self::wait_for_thread_shutdown(&conversation).await {
ThreadShutdownResult::Complete => {}
ThreadShutdownResult::SubmitFailed => {
error!(
"failed to submit Shutdown to thread {thread_id}; proceeding with archive"
);
}
ThreadShutdownResult::TimedOut => {
warn!("thread {thread_id} shutdown timed out; proceeding with archive");
}
}
}
self.finalize_thread_teardown(thread_id).await;
}
pub(super) async fn ensure_conversation_listener(
&self,
conversation_id: ThreadId,
connection_id: ConnectionId,
raw_events_enabled: bool,
api_version: ApiVersion,
) -> Result<EnsureConversationListenerResult, JSONRPCErrorError> {
Self::ensure_conversation_listener_task(
ListenerTaskContext {
thread_manager: Arc::clone(&self.thread_manager),
thread_state_manager: self.thread_state_manager.clone(),
outgoing: Arc::clone(&self.outgoing),
pending_thread_unloads: Arc::clone(&self.pending_thread_unloads),
analytics_events_client: self.analytics_events_client.clone(),
general_analytics_enabled: self.config.features.enabled(Feature::GeneralAnalytics),
thread_watch_manager: self.thread_watch_manager.clone(),
epiphany_invalidation_manager: self.epiphany_invalidation_manager.clone(),
fallback_model_provider: self.config.model_provider_id.clone(),
codex_home: self.config.codex_home.to_path_buf(),
},
conversation_id,
connection_id,
raw_events_enabled,
api_version,
)
.await
}
#[expect(
clippy::await_holding_invalid_type,
reason = "listener subscription must be serialized against pending thread unloads"
)]
pub(super) async fn ensure_conversation_listener_task(
listener_task_context: ListenerTaskContext,
conversation_id: ThreadId,
connection_id: ConnectionId,
raw_events_enabled: bool,
api_version: ApiVersion,
) -> Result<EnsureConversationListenerResult, JSONRPCErrorError> {
let conversation = match listener_task_context
.thread_manager
.get_thread(conversation_id)
.await
{
Ok(conv) => conv,
Err(_) => {
return Err(JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,
message: format!("thread not found: {conversation_id}"),
data: None,
});
}
};
let thread_state = {
let pending_thread_unloads = listener_task_context.pending_thread_unloads.lock().await;
if pending_thread_unloads.contains(&conversation_id) {
return Err(JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,
message: format!(
"thread {conversation_id} is closing; retry after the thread is closed"
),
data: None,
});
}
let Some(thread_state) = listener_task_context
.thread_state_manager
.try_ensure_connection_subscribed(
conversation_id,
connection_id,
raw_events_enabled,
)
.await
else {
return Ok(EnsureConversationListenerResult::ConnectionClosed);
};
thread_state
};
if let Err(error) = Self::ensure_listener_task_running_task(
listener_task_context.clone(),
conversation_id,
conversation,
thread_state,
api_version,
)
.await
{
let _ = listener_task_context
.thread_state_manager
.unsubscribe_connection_from_thread(conversation_id, connection_id)
.await;
return Err(error);
}
Ok(EnsureConversationListenerResult::Attached)
}
pub(super) fn log_listener_attach_result(
result: Result<EnsureConversationListenerResult, JSONRPCErrorError>,
thread_id: ThreadId,
connection_id: ConnectionId,
thread_kind: &'static str,
) {
match result {
Ok(EnsureConversationListenerResult::Attached) => {}
Ok(EnsureConversationListenerResult::ConnectionClosed) => {
tracing::debug!(
thread_id = %thread_id,
connection_id = ?connection_id,
"skipping auto-attach for closed connection"
);
}
Err(err) => {
tracing::warn!(
"failed to attach listener for {thread_kind} {thread_id}: {message}",
message = err.message
);
}
}
}
pub(super) async fn ensure_listener_task_running(
&self,
conversation_id: ThreadId,
conversation: Arc<CodexThread>,
thread_state: Arc<Mutex<ThreadState>>,
api_version: ApiVersion,
) -> Result<(), JSONRPCErrorError> {
Self::ensure_listener_task_running_task(
ListenerTaskContext {
thread_manager: Arc::clone(&self.thread_manager),
thread_state_manager: self.thread_state_manager.clone(),
outgoing: Arc::clone(&self.outgoing),
pending_thread_unloads: Arc::clone(&self.pending_thread_unloads),
analytics_events_client: self.analytics_events_client.clone(),
general_analytics_enabled: self.config.features.enabled(Feature::GeneralAnalytics),
thread_watch_manager: self.thread_watch_manager.clone(),
epiphany_invalidation_manager: self.epiphany_invalidation_manager.clone(),
fallback_model_provider: self.config.model_provider_id.clone(),
codex_home: self.config.codex_home.to_path_buf(),
},
conversation_id,
conversation,
thread_state,
api_version,
)
.await
}
pub(super) async fn ensure_listener_task_running_task(
listener_task_context: ListenerTaskContext,
conversation_id: ThreadId,
conversation: Arc<CodexThread>,
thread_state: Arc<Mutex<ThreadState>>,
api_version: ApiVersion,
) -> Result<(), JSONRPCErrorError> {
let (cancel_tx, mut cancel_rx) = oneshot::channel();
let Some(mut unloading_state) = UnloadingState::new(
&listener_task_context,
conversation_id,
THREAD_UNLOADING_DELAY,
)
.await
else {
return Err(JSONRPCErrorError {
code: INVALID_REQUEST_ERROR_CODE,
message: format!(
"thread {conversation_id} is closing; retry after the thread is closed"
),
data: None,
});
};
let (mut listener_command_rx, listener_generation) = {
let mut thread_state = thread_state.lock().await;
if thread_state.listener_matches(&conversation) {
return Ok(());
}
thread_state.set_listener(cancel_tx, &conversation)
};
let ListenerTaskContext {
outgoing,
thread_manager,
thread_state_manager,
pending_thread_unloads,
analytics_events_client: _,
general_analytics_enabled: _,
thread_watch_manager,
epiphany_invalidation_manager,
fallback_model_provider,
codex_home,
} = listener_task_context;
let outgoing_for_task = Arc::clone(&outgoing);
tokio::spawn(async move {
loop {
tokio::select! {
biased;
_ = &mut cancel_rx => {
// Listener was superseded or the thread is being torn down.
break;
}
listener_command = listener_command_rx.recv() => {
let Some(listener_command) = listener_command else {
break;
};
handle_thread_listener_command(
conversation_id,
&conversation,
codex_home.as_path(),
&thread_state_manager,
&thread_state,
&thread_watch_manager,
&outgoing_for_task,
&pending_thread_unloads,
listener_command,
)
.await;
}
event = conversation.next_event() => {
let event = match event {
Ok(event) => event,
Err(err) => {
tracing::warn!("thread.next_event() failed with: {err}");
break;
}
};
// Track the event before emitting any typed
// translations so thread-local state such as raw event
// opt-in stays synchronized with the conversation.
let raw_events_enabled = {
let mut thread_state = thread_state.lock().await;
thread_state.track_current_turn_event(&event.msg);
thread_state.experimental_raw_events
};
let subscribed_connection_ids = thread_state_manager
.subscribed_connection_ids(conversation_id)
.await;
let thread_outgoing = ThreadScopedOutgoingMessageSender::new(
outgoing_for_task.clone(),
subscribed_connection_ids,
conversation_id,
);
if let EventMsg::RawResponseItem(raw_response_item_event) = &event.msg
&& !raw_events_enabled
{
maybe_emit_hook_prompt_item_completed(
api_version,
conversation_id,
&event.id,
&raw_response_item_event.item,
&thread_outgoing,
)
.await;
continue;
}
apply_bespoke_event_handling(
event.clone(),
conversation_id,
conversation.clone(),
thread_manager.clone(),
listener_task_context
.general_analytics_enabled
.then(|| listener_task_context.analytics_events_client.clone()),
thread_outgoing,
thread_state.clone(),
thread_watch_manager.clone(),
epiphany_invalidation_manager.clone(),
api_version,
fallback_model_provider.clone(),
codex_home.as_path(),
)
.await;
}
unloading_watchers_open = unloading_state.wait_for_unloading_trigger() => {
if !unloading_watchers_open {
break;
}
if !unloading_state.should_unload_now() {
continue;
}
if matches!(conversation.agent_status().await, AgentStatus::Running) {
unloading_state.note_thread_activity_observed();
continue;
}
{
let mut pending_thread_unloads = pending_thread_unloads.lock().await;
if pending_thread_unloads.contains(&conversation_id) {
continue;
}
if !unloading_state.should_unload_now() {
continue;
}
pending_thread_unloads.insert(conversation_id);
}
Self::unload_thread_without_subscribers(
thread_manager.clone(),
outgoing_for_task.clone(),
pending_thread_unloads.clone(),
thread_state_manager.clone(),
thread_watch_manager.clone(),
epiphany_invalidation_manager.clone(),
conversation_id,
conversation.clone(),
)
.await;
break;
}
}
}
let mut thread_state = thread_state.lock().await;
if thread_state.listener_generation == listener_generation {
thread_state.clear_listener();
}
});
Ok(())
}
}