claude-print/notes/bf-5uv2.md

Verification: StreamJsonHandle Storage and Spawned Flag Setting

Task Confirmation

Verified that StreamJsonHandle is stored and the spawned flag is set correctly in src/session.rs.

Acceptance Criteria Verified

1. ✓ stream_json_handle = Some(...) assignment exists

Location: src/session.rs:370-373

stream_json_handle = Some(emitter::spawn_stream_json_reader(
    transcript_path.clone(),
    start_offset,
));

2. ✓ stream_json_spawned_clone.store(true, ...) call is present

Location: src/session.rs:374

stream_json_spawned_clone.store(true, std::sync::atomic::Ordering::SeqCst);

3. ✓ Ordering::SeqCst is used for the atomic store

The store operation uses std::sync::atomic::Ordering::SeqCst, providing the strongest memory ordering guarantees.

4. ✓ stream_json_handle is the correct variable type

Variable declaration: src/session.rs:304

let mut stream_json_handle: Option<emitter::StreamJsonHandle> = None;

Struct field definition: src/session.rs:45

pub stream_json_handle: Option<emitter::StreamJsonHandle>,

5. ✓ Spawned flag visibility to other parts of the code

The flag is declared as:

let stream_json_spawned = std::sync::Arc::new(std::sync::atomic::AtomicBool::new(false));

Since it's wrapped in Arc<AtomicBool> and stored with Ordering::SeqCst, the spawned flag is properly synchronized and will be visible across threads.

Context

The handle and spawned flag are set when the PROMPT_INJECTED phase is reached in the event loop (src/session.rs:360-376). This ensures the stream-json reader is spawned at the correct time during the session lifecycle.