| 1 | //! Live view transport replacing the app-local QuickJS Worker. Only immutable |
| 2 | //! projections cross back to Ratatui; network, raster and encoding stay here. |
| 3 | use super::{graphics, owner}; |
| 4 | use codewhale_protocol::engine_owner::EngineOwnerProjection; |
| 5 | use serde::{Deserialize, Serialize}; |
| 6 | use serde_json::{Value, json}; |
| 7 | use std::{ |
| 8 | io::{self, Read}, |
| 9 | path::PathBuf, |
| 10 | sync::{Arc, Mutex, mpsc}, |
| 11 | time::{Duration, Instant}, |
| 12 | }; |
| 13 | |
| 14 | #[derive(Clone, Deserialize, Serialize)] |
| 15 | pub struct Style { |
| 16 | pub r: f64, |
| 17 | pub g: f64, |
| 18 | pub b: f64, |
| 19 | pub alpha: f64, |
| 20 | pub hollow: bool, |
| 21 | pub channel: String, |
| 22 | pub arch: String, |
| 23 | } |
| 24 | #[derive(Clone, Deserialize, Serialize)] |
| 25 | pub struct Pose { |
| 26 | pub points: Vec<[f64; 2]>, |
| 27 | pub style: Style, |
| 28 | pub state: Value, |
| 29 | } |
| 30 | pub type Activity = EngineOwnerProjection; |
| 31 | #[derive(Clone, Deserialize, Serialize)] |
| 32 | #[serde(rename_all = "camelCase")] |
| 33 | pub struct Scene { |
| 34 | pub version: u8, |
| 35 | pub identity: String, |
| 36 | pub epoch: String, |
| 37 | pub tick: u64, |
| 38 | pub cursor: u64, |
| 39 | pub source: String, |
| 40 | pub source_revision: u64, |
| 41 | pub time_ms: f64, |
| 42 | pub digest: String, |
| 43 | pub behaviour: String, |
| 44 | pub producer_connected: bool, |
| 45 | pub storage_available: bool, |
| 46 | pub audio_owner: Option<String>, |
| 47 | pub audio_unavailable: bool, |
| 48 | pub points: Vec<[f64; 2]>, |
| 49 | pub style: Style, |
| 50 | pub state: Value, |
| 51 | pub still: Pose, |
| 52 | #[serde(default)] |
| 53 | pub appearance: super::appearance::Appearance, |
| 54 | /// Owner activity is an overlay on the body, never a reason to drop the |
| 55 | /// frame. A long-lived `pet serve` owner can predate this binary (the |
| 56 | /// activity shape changed without a frame version bump), so an activity |
| 57 | /// this client cannot parse reads as none and the pet keeps rendering. |
| 58 | #[serde(default, deserialize_with = "lenient_activity")] |
| 59 | pub activity: Option<Activity>, |
| 60 | } |
| 61 | fn lenient_activity<'de, D: serde::Deserializer<'de>>( |
| 62 | deserializer: D, |
| 63 | ) -> Result<Option<Activity>, D::Error> { |
| 64 | Ok(Option::<Value>::deserialize(deserializer)? |
| 65 | .and_then(|value| serde_json::from_value(value).ok())) |
| 66 | } |
| 67 | impl Scene { |
| 68 | /// Drop an activity that is invalid or bound to another cursor or |
| 69 | /// session. Rejecting the whole frame instead would clear queued events, |
| 70 | /// drop the producer lease and loop every shared view on reconnect. |
| 71 | fn settle_activity(&mut self) { |
| 72 | let source = (self.source != "unattached").then_some(self.source.as_str()); |
| 73 | if self.activity.as_ref().is_some_and(|activity| { |
| 74 | !activity.is_valid() |
| 75 | || activity.cursor != self.cursor |
| 76 | || activity.session_id.as_deref() != source |
| 77 | }) { |
| 78 | self.activity = None; |
| 79 | } |
| 80 | } |
| 81 | fn valid(&self) -> bool { |
| 82 | self.version == 1 |
| 83 | && self.time_ms.is_finite() |
| 84 | && self.points.len() == 980 |
| 85 | && self.still.points.len() == 980 |
| 86 | && self |
| 87 | .points |
| 88 | .iter() |
| 89 | .chain(&self.still.points) |
| 90 | .flatten() |
| 91 | .all(|p| p.is_finite() && p.abs() <= 8.0) |
| 92 | } |
| 93 | } |
| 94 | #[derive(Clone)] |
| 95 | pub struct Presentation { |
| 96 | pub client: String, |
| 97 | pub scene: Scene, |
| 98 | pub cells: Vec<u8>, |
| 99 | pub image: Option<Vec<u8>>, |
| 100 | pub width: u16, |
| 101 | pub height: u16, |
| 102 | pub created: Instant, |
| 103 | pub frame_changed: Instant, |
| 104 | pub render_ms: f64, |
| 105 | pub bytes: usize, |
| 106 | } |
| 107 | #[derive(Clone, Default)] |
| 108 | pub struct View { |
| 109 | pub width: u16, |
| 110 | pub height: u16, |
| 111 | pub cell_width: f64, |
| 112 | pub cell_height: f64, |
| 113 | pub motion: bool, |
| 114 | pub pixels: bool, |
| 115 | pub visible: bool, |
| 116 | pub waiting: bool, |
| 117 | pub sound: bool, |
| 118 | } |
| 119 | #[derive(Clone)] |
| 120 | pub enum Command { |
| 121 | Observe(String), |
| 122 | Select, |
| 123 | Browser, |
| 124 | Window, |
| 125 | Export, |
| 126 | } |
| 127 | pub enum Notice { |
| 128 | Exported(PathBuf), |
| 129 | Message(String), |
| 130 | /// The companion cannot be reached: the view thread stopped, or a frame |
| 131 | /// fetch failed and it is reconnecting. Only this marks the pet offline. |
| 132 | Unreachable(String), |
| 133 | } |
| 134 | /// Producer events queued for the next `/v1/producer` post. The owner caps a |
| 135 | /// batch at 64 events *and* its request body at [`owner::MAX_REQUEST_BYTES`]; |
| 136 | /// a batch that exceeds either is a coverage gap, never a post the owner must |
| 137 | /// refuse (a 64-event batch of 16 KiB events is far over the body limit). |
| 138 | #[derive(Default)] |
| 139 | struct Batch { |
| 140 | events: Vec<Value>, |
| 141 | bytes: usize, |
| 142 | } |
| 143 | |
| 144 | impl Batch { |
| 145 | const MAX_EVENTS: usize = 64; |
| 146 | /// Room left for the post's envelope (identity, epoch, source, sequence). |
| 147 | const MAX_EVENT_BYTES: usize = owner::MAX_REQUEST_BYTES - 4 * 1024; |
| 148 | |
| 149 | /// Queue one event. `Ok(false)` means it does not fit: the caller drops |
| 150 | /// the batch and restarts the lease rather than posting a partial one. |
| 151 | fn push(&mut self, text: &str) -> io::Result<bool> { |
| 152 | // `+ 1` counts the separating comma in the posted JSON array. |
| 153 | let bytes = self.bytes + text.len() + 1; |
| 154 | if self.events.len() >= Self::MAX_EVENTS || bytes > Self::MAX_EVENT_BYTES { |
| 155 | return Ok(false); |
| 156 | } |
| 157 | self.events.push(serde_json::from_str(text)?); |
| 158 | self.bytes = bytes; |
| 159 | Ok(true) |
| 160 | } |
| 161 | |
| 162 | fn clear(&mut self) { |
| 163 | self.events.clear(); |
| 164 | self.bytes = 0; |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | pub struct Worker { |
| 169 | pub tx: mpsc::SyncSender<Command>, |
| 170 | pub latest: Arc<Mutex<Option<Presentation>>>, |
| 171 | pub view: Arc<Mutex<View>>, |
| 172 | pub notices: mpsc::Receiver<Notice>, |
| 173 | } |
| 174 | |
| 175 | pub struct Client { |
| 176 | pub descriptor: owner::Descriptor, |
| 177 | http: reqwest::blocking::Client, |
| 178 | } |
| 179 | impl Client { |
| 180 | pub fn connect() -> io::Result<Self> { |
| 181 | let root = owner::directory()?; |
| 182 | let http = crate::tls::reqwest_blocking_client_builder() |
| 183 | .no_proxy() |
| 184 | .connect_timeout(Duration::from_millis(500)) |
| 185 | .timeout(Duration::from_secs(2)) |
| 186 | .build() |
| 187 | .map_err(io::Error::other)?; |
| 188 | let attempt = || -> io::Result<Self> { |
| 189 | Ok(Self { |
| 190 | descriptor: owner::descriptor(&root)?, |
| 191 | http: http.clone(), |
| 192 | }) |
| 193 | }; |
| 194 | if let Ok(client) = attempt() |
| 195 | && client.get("/v1/frame").is_ok() |
| 196 | { |
| 197 | return Ok(client); |
| 198 | } |
| 199 | #[cfg(not(test))] |
| 200 | { |
| 201 | use std::process::{Command as Process, Stdio}; |
| 202 | let mut process = Process::new(std::env::current_exe()?); |
| 203 | process |
| 204 | .args(["pet", "serve"]) |
| 205 | .stdin(Stdio::null()) |
| 206 | .stdout(Stdio::null()) |
| 207 | .stderr(Stdio::null()); |
| 208 | #[cfg(unix)] |
| 209 | { |
| 210 | use std::os::unix::process::CommandExt; |
| 211 | unsafe { |
| 212 | process.pre_exec(|| { |
| 213 | if libc::setsid() < 0 { |
| 214 | return Err(io::Error::last_os_error()); |
| 215 | } |
| 216 | Ok(()) |
| 217 | }); |
| 218 | } |
| 219 | } |
| 220 | #[cfg(windows)] |
| 221 | { |
| 222 | use std::os::windows::process::CommandExt; |
| 223 | process.creation_flags(0x08000000 | 0x00000008); |
| 224 | } |
| 225 | let mut child = process.spawn()?; |
| 226 | std::thread::spawn(move || { |
| 227 | let _ = child.wait(); |
| 228 | }); |
| 229 | } |
| 230 | let began = Instant::now(); |
| 231 | while began.elapsed() < Duration::from_secs(5) { |
| 232 | if let Ok(client) = attempt() |
| 233 | && client.get("/v1/frame").is_ok() |
| 234 | { |
| 235 | return Ok(client); |
| 236 | } |
| 237 | std::thread::sleep(Duration::from_millis(50)); |
| 238 | } |
| 239 | Err(io::Error::other( |
| 240 | "Shared pet unavailable. Run codewhale pet serve; existing recordings are preserved.", |
| 241 | )) |
| 242 | } |
| 243 | pub fn get(&self, path: &str) -> io::Result<Value> { |
| 244 | self.request(path, None) |
| 245 | } |
| 246 | pub fn post(&self, path: &str, body: &Value) -> io::Result<Value> { |
| 247 | self.request(path, Some(body)) |
| 248 | } |
| 249 | fn request(&self, path: &str, body: Option<&Value>) -> io::Result<Value> { |
| 250 | let url = format!("http://127.0.0.1:{}{path}", self.descriptor.port); |
| 251 | let mut request = if let Some(body) = body { |
| 252 | self.http.post(url).json(body) |
| 253 | } else { |
| 254 | self.http.get(url) |
| 255 | }; |
| 256 | if path == "/v1/export" { |
| 257 | // The owner serializes the recording on its world thread for up |
| 258 | // to its own work bound; giving up sooner abandons an export the |
| 259 | // owner still completes. Other calls keep the 2 s client bound. |
| 260 | // |
| 261 | // Known limitation (U06-m4): export runs synchronously in the |
| 262 | // owner's single QuickJS world, so the world answers no other work |
| 263 | // until it finishes. Keeping it responsive needs an incremental |
| 264 | // export in pet-native.js; aligning this wait is only the client |
| 265 | // half. |
| 266 | request = request.timeout(owner::WORK_REPLY_TIMEOUT + Duration::from_secs(1)); |
| 267 | } |
| 268 | let response = request |
| 269 | .bearer_auth(&self.descriptor.token) |
| 270 | .send() |
| 271 | .map_err(io::Error::other)?; |
| 272 | let status = response.status(); |
| 273 | let success = status.is_success(); |
| 274 | let bound = if path == "/v1/export" { |
| 275 | super::persistence::MAX_EXPORT_BYTES |
| 276 | } else { |
| 277 | 8 * 1024 * 1024 |
| 278 | }; |
| 279 | let mut bytes = Vec::new(); |
| 280 | response.take(bound as u64 + 1).read_to_end(&mut bytes)?; |
| 281 | if bytes.len() > bound { |
| 282 | return Err(io::Error::other("Pet response exceeds its bound")); |
| 283 | } |
| 284 | let value: Value = serde_json::from_slice(&bytes)?; |
| 285 | if !success { |
| 286 | let message = value["error"] |
| 287 | .as_str() |
| 288 | .unwrap_or("Shared pet connection failed"); |
| 289 | return Err(io::Error::new( |
| 290 | if status == reqwest::StatusCode::CONFLICT && !message.contains("storage") { |
| 291 | io::ErrorKind::InvalidInput |
| 292 | } else { |
| 293 | io::ErrorKind::Other |
| 294 | }, |
| 295 | message, |
| 296 | )); |
| 297 | } |
| 298 | Ok(value) |
| 299 | } |
| 300 | pub fn open_browser(&self) -> io::Result<()> { |
| 301 | let url = format!( |
| 302 | "http://127.0.0.1:{}/#{}", |
| 303 | self.descriptor.port, self.descriptor.token |
| 304 | ); |
| 305 | #[cfg(all(unix, not(target_os = "macos")))] |
| 306 | { |
| 307 | use std::process::{Command as Process, Stdio}; |
| 308 | // `webbrowser` resolves `$BROWSER` and `xdg-open` through the |
| 309 | // environment and `PATH`, where a workspace could shadow the |
| 310 | // launcher and receive this URL's owner token. Use the launcher |
| 311 | // from a trusted system prefix only (U06-06). |
| 312 | let launcher = crate::notify::audio::trusted_system_executable("xdg-open")?; |
| 313 | let mut child = Process::new(launcher) |
| 314 | .arg(&url) |
| 315 | .stdin(Stdio::null()) |
| 316 | .stdout(Stdio::null()) |
| 317 | .stderr(Stdio::null()) |
| 318 | .spawn()?; |
| 319 | // Some launchers stay in the foreground with the browser; reap it |
| 320 | // off this worker thread so the pet view keeps painting. |
| 321 | std::thread::Builder::new() |
| 322 | .name("pet-browser-launcher".into()) |
| 323 | .spawn(move || { |
| 324 | let _ = child.wait(); |
| 325 | })?; |
| 326 | Ok(()) |
| 327 | } |
| 328 | // macOS (LaunchServices) and Windows (ShellExecute) resolve the |
| 329 | // default browser through the OS, not `PATH`. |
| 330 | #[cfg(not(all(unix, not(target_os = "macos"))))] |
| 331 | { |
| 332 | webbrowser::open(&url).map_err(io::Error::other) |
| 333 | } |
| 334 | } |
| 335 | pub fn open_window(&self) -> io::Result<()> { |
| 336 | #[cfg(target_os = "macos")] |
| 337 | { |
| 338 | use std::process::{Command as Process, Stdio}; |
| 339 | // The system launcher by absolute path: a bare `open` resolves |
| 340 | // through `PATH`, where a workspace entry could shadow it. |
| 341 | let mut process = Process::new("/usr/bin/open"); |
| 342 | if let Some(path) = std::env::var_os("CODEWHALE_PET_APP") { |
| 343 | process.arg(path); |
| 344 | } else { |
| 345 | process.args(["-a", "Codewhale Pet"]); |
| 346 | } |
| 347 | process |
| 348 | .args(["--args", "--companion"]) |
| 349 | .stdin(Stdio::null()) |
| 350 | .stdout(Stdio::null()) |
| 351 | .stderr(Stdio::null()); |
| 352 | if process.status()?.success() { |
| 353 | return Ok(()); |
| 354 | } |
| 355 | Err(io::Error::other( |
| 356 | "Build or install the Codewhale Pet app to open its companion window", |
| 357 | )) |
| 358 | } |
| 359 | #[cfg(not(target_os = "macos"))] |
| 360 | { |
| 361 | Err(io::Error::other( |
| 362 | "The native companion window is currently available on macOS", |
| 363 | )) |
| 364 | } |
| 365 | } |
| 366 | } |
| 367 | impl Worker { |
| 368 | pub fn start(session: Option<String>) -> io::Result<Self> { |
| 369 | let (tx, rx) = mpsc::sync_channel(128); |
| 370 | let (latest, (notices_tx, notices)) = (Arc::new(Mutex::new(None)), mpsc::sync_channel(16)); |
| 371 | let output = latest.clone(); |
| 372 | let view = Arc::new(Mutex::new(View { |
| 373 | width: 40, |
| 374 | height: 8, |
| 375 | ..View::default() |
| 376 | })); |
| 377 | let settings = view.clone(); |
| 378 | std::thread::Builder::new() |
| 379 | .name("pet-view".into()) |
| 380 | .spawn(move || { |
| 381 | if let Err(e) = run(rx, &output, ¬ices_tx, &settings, session) { |
| 382 | let _ = notices_tx.try_send(Notice::Unreachable(e.to_string())); |
| 383 | } |
| 384 | })?; |
| 385 | Ok(Self { |
| 386 | tx, |
| 387 | latest, |
| 388 | notices, |
| 389 | view, |
| 390 | }) |
| 391 | } |
| 392 | } |
| 393 | fn run( |
| 394 | rx: mpsc::Receiver<Command>, |
| 395 | output: &Mutex<Option<Presentation>>, |
| 396 | notices: &mpsc::SyncSender<Notice>, |
| 397 | settings: &Mutex<View>, |
| 398 | session: Option<String>, |
| 399 | ) -> io::Result<()> { |
| 400 | use sha2::{Digest, Sha256}; |
| 401 | let source = session.as_ref().map(|s| { |
| 402 | format!( |
| 403 | "session:{}", |
| 404 | Sha256::digest(s.as_bytes()) |
| 405 | .iter() |
| 406 | .take(10) |
| 407 | .map(|b| format!("{b:02x}")) |
| 408 | .collect::<String>() |
| 409 | ) |
| 410 | }); |
| 411 | let mut renderer = graphics::Renderer::default(); |
| 412 | let id = uuid::Uuid::new_v4().to_string(); |
| 413 | let mut client = Client::connect()?; |
| 414 | |
| 415 | let mut scene: Option<Scene> = None; |
| 416 | let mut previous = None; |
| 417 | let mut changed = Instant::now(); |
| 418 | let mut fetched = Instant::now() - Duration::from_secs(1); |
| 419 | let mut encoded = Instant::now() - Duration::from_secs(1); |
| 420 | let mut events = Batch::default(); |
| 421 | let mut producer_seq = None; |
| 422 | let mut sequence = 0u64; |
| 423 | let mut action: Option<Value> = None; |
| 424 | let mut last_action = Instant::now() - Duration::from_secs(1); |
| 425 | let mut last_produce = Instant::now(); |
| 426 | let mut last_audio = Instant::now(); |
| 427 | let mut last_failure = Instant::now() - Duration::from_secs(10); |
| 428 | loop { |
| 429 | let view = settings |
| 430 | .lock() |
| 431 | .map_err(|_| io::Error::other("Pet view lock failed"))? |
| 432 | .clone(); |
| 433 | match rx.recv_timeout(Duration::from_millis(2)) { |
| 434 | Ok(command) => match command { |
| 435 | Command::Observe(text) => { |
| 436 | if !events.push(&text)? { |
| 437 | // Overflow is a coverage gap, never a truncated batch: |
| 438 | // restart the lease from sequence zero. |
| 439 | events.clear(); |
| 440 | producer_seq = None; |
| 441 | } |
| 442 | } |
| 443 | Command::Select => { |
| 444 | if let (Some(s), Some(source)) = (&scene, &source) |
| 445 | && action.is_none() |
| 446 | { |
| 447 | action = Some( |
| 448 | json!({"identity":s.identity,"client":id,"seq":sequence+1,"source_revision":s.source_revision,"action":{"kind":"select","source":source}}), |
| 449 | ); |
| 450 | } else { |
| 451 | let _ = notices.try_send(Notice::Message( |
| 452 | "Save this session and wait for the pet connection before selecting its source.".into(), |
| 453 | )); |
| 454 | } |
| 455 | } |
| 456 | Command::Browser => { |
| 457 | if let Err(e) = client.open_browser() { |
| 458 | let _ = notices.try_send(Notice::Message(e.to_string())); |
| 459 | } |
| 460 | } |
| 461 | Command::Window => { |
| 462 | if let Err(e) = client.open_window() { |
| 463 | let _ = notices.try_send(Notice::Message(e.to_string())); |
| 464 | } |
| 465 | } |
| 466 | Command::Export => { |
| 467 | let result = client.get("/v1/export").and_then(|r| { |
| 468 | super::persistence::export( |
| 469 | session.as_deref().ok_or_else(|| { |
| 470 | io::Error::other("Save the terminal session before exporting") |
| 471 | })?, |
| 472 | &serde_json::to_vec(&r)?, |
| 473 | ) |
| 474 | }); |
| 475 | let _ = notices.try_send(match result { |
| 476 | Ok(path) => Notice::Exported(path), |
| 477 | Err(e) => Notice::Message(e.to_string()), |
| 478 | }); |
| 479 | } |
| 480 | }, |
| 481 | Err(mpsc::RecvTimeoutError::Disconnected) => { |
| 482 | let _ = client.post("/v1/audio", &json!({"client":id,"enabled":false})); |
| 483 | return Ok(()); |
| 484 | } |
| 485 | Err(mpsc::RecvTimeoutError::Timeout) => {} |
| 486 | } |
| 487 | if fetched.elapsed() >= Duration::from_millis(if view.visible { 30 } else { 400 }) { |
| 488 | match client |
| 489 | .get("/v1/frame") |
| 490 | .and_then(|value| serde_json::from_value::<Scene>(value).map_err(io::Error::other)) |
| 491 | .map(|mut next| { |
| 492 | next.settle_activity(); |
| 493 | next |
| 494 | }) { |
| 495 | Ok(next) if next.valid() => { |
| 496 | if scene |
| 497 | .as_ref() |
| 498 | .is_none_or(|s| s.epoch != next.epoch || s.identity != next.identity) |
| 499 | { |
| 500 | previous = None; |
| 501 | changed = Instant::now(); |
| 502 | producer_seq = None; |
| 503 | events.clear(); |
| 504 | } else if scene.as_ref().is_some_and(|s| s.tick != next.tick) { |
| 505 | previous = scene.clone(); |
| 506 | changed = Instant::now(); |
| 507 | } |
| 508 | if next.source == "unattached" |
| 509 | && let Some(source) = &source |
| 510 | && action.is_none() |
| 511 | { |
| 512 | action = Some( |
| 513 | json!({"identity":next.identity,"client":id,"seq":sequence+1,"source_revision":next.source_revision,"action":{"kind":"select","source":source}}), |
| 514 | ); |
| 515 | } |
| 516 | scene = Some(next); |
| 517 | fetched = Instant::now(); |
| 518 | } |
| 519 | _ => { |
| 520 | fetched = Instant::now(); |
| 521 | events.clear(); |
| 522 | producer_seq = None; |
| 523 | if last_failure.elapsed() > Duration::from_secs(3) { |
| 524 | last_failure = Instant::now(); |
| 525 | let _ = |
| 526 | notices.try_send(Notice::Unreachable("Shared pet reconnecting".into())); |
| 527 | if let Ok(next) = Client::connect() { |
| 528 | client = next; |
| 529 | } |
| 530 | } |
| 531 | continue; |
| 532 | } |
| 533 | } |
| 534 | } |
| 535 | let Some(s) = &scene else { continue }; |
| 536 | if last_action.elapsed() >= Duration::from_millis(250) |
| 537 | && let Some(pending) = &action |
| 538 | { |
| 539 | last_action = Instant::now(); |
| 540 | match client.post("/v1/action", pending) { |
| 541 | Ok(_) => { |
| 542 | let selected = pending["action"]["kind"] == "select"; |
| 543 | sequence += 1; |
| 544 | action = None; |
| 545 | if selected { |
| 546 | producer_seq = None; |
| 547 | events.clear(); |
| 548 | } |
| 549 | } |
| 550 | Err(e) => { |
| 551 | if e.kind() == io::ErrorKind::InvalidInput { |
| 552 | action = None; |
| 553 | } |
| 554 | if last_failure.elapsed() > Duration::from_secs(3) { |
| 555 | last_failure = Instant::now(); |
| 556 | let _ = notices.try_send(Notice::Message(e.to_string())); |
| 557 | } |
| 558 | } |
| 559 | } |
| 560 | } |
| 561 | if source.as_deref() == Some(s.source.as_str()) |
| 562 | && last_produce.elapsed() >= Duration::from_millis(100) |
| 563 | { |
| 564 | let seq = producer_seq.map_or(0, |seq| seq + 1); |
| 565 | if seq == 0 { |
| 566 | events.clear(); |
| 567 | } |
| 568 | let body = json!({"identity":s.identity,"epoch":s.epoch,"client":id,"source":s.source,"source_revision":s.source_revision,"seq":seq,"waiting":view.waiting,"events":events.events}); |
| 569 | producer_seq = client.post("/v1/producer", &body).ok().map(|_| seq); |
| 570 | events.clear(); |
| 571 | last_produce = Instant::now(); |
| 572 | } else if source.as_deref() != Some(s.source.as_str()) { |
| 573 | events.clear(); |
| 574 | producer_seq = None; |
| 575 | } |
| 576 | if last_audio.elapsed() >= Duration::from_millis(500) { |
| 577 | let _=client.post("/v1/audio",&json!({"client":id,"enabled":view.sound&&view.visible&&changed.elapsed()<Duration::from_millis(500)})); |
| 578 | last_audio = Instant::now(); |
| 579 | } |
| 580 | if view.visible |
| 581 | && encoded.elapsed() |
| 582 | >= Duration::from_millis(if view.motion && view.pixels { |
| 583 | 16 |
| 584 | } else if view.motion { |
| 585 | 33 |
| 586 | } else { |
| 587 | 200 |
| 588 | }) |
| 589 | { |
| 590 | let began = Instant::now(); |
| 591 | let mut pose = if view.motion { |
| 592 | Pose { |
| 593 | points: s.points.clone(), |
| 594 | style: s.style.clone(), |
| 595 | state: s.state.clone(), |
| 596 | } |
| 597 | } else { |
| 598 | s.still.clone() |
| 599 | }; |
| 600 | if !s.producer_connected { |
| 601 | pose.style.hollow = true; |
| 602 | } |
| 603 | let fraction = if view.motion { |
| 604 | (changed.elapsed().as_secs_f64() * 30.0).clamp(0.0, 1.0) |
| 605 | } else { |
| 606 | 1.0 |
| 607 | }; |
| 608 | renderer.set_appearance(&s.appearance); |
| 609 | let (cells, image) = renderer.render( |
| 610 | &pose, |
| 611 | previous.as_ref().filter(|_| view.motion), |
| 612 | fraction, |
| 613 | &view, |
| 614 | if view.motion { s.time_ms / 1000.0 } else { 0.0 }, |
| 615 | )?; |
| 616 | let bytes = image.as_ref().map_or(0, Vec::len); |
| 617 | if let Ok(mut slot) = output.lock() { |
| 618 | *slot = Some(Presentation { |
| 619 | client: id.clone(), |
| 620 | scene: s.clone(), |
| 621 | cells, |
| 622 | image, |
| 623 | width: view.width, |
| 624 | height: view.height, |
| 625 | created: Instant::now(), |
| 626 | frame_changed: changed, |
| 627 | render_ms: began.elapsed().as_secs_f64() * 1000.0, |
| 628 | bytes, |
| 629 | }); |
| 630 | } |
| 631 | encoded = began; |
| 632 | } |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | #[cfg(test)] |
| 637 | mod tests { |
| 638 | use super::*; |
| 639 | |
| 640 | /// U06-03: a producer batch is bounded by the owner's request body limit, |
| 641 | /// not only by its event count, so the worker never posts a body the |
| 642 | /// owner must refuse (64 events of 16 KiB each is ~1 MiB). |
| 643 | #[test] |
| 644 | fn producer_batch_fits_the_owner_body_limit() { |
| 645 | let mut batch = Batch::default(); |
| 646 | let large = format!("{{\"event\":\"x\",\"id\":\"{}\"}}", "a".repeat(16_000)); |
| 647 | let mut accepted = 0; |
| 648 | while batch.push(&large).unwrap() { |
| 649 | accepted += 1; |
| 650 | } |
| 651 | assert!(accepted > 0 && accepted < Batch::MAX_EVENTS, "{accepted}"); |
| 652 | let posted = serde_json::to_vec(&json!({"seq": u64::MAX, "events": batch.events})).unwrap(); |
| 653 | assert!(posted.len() <= owner::MAX_REQUEST_BYTES, "{}", posted.len()); |
| 654 | |
| 655 | batch.clear(); |
| 656 | let small = "{\"event\":\"tool_call_heartbeat\"}"; |
| 657 | for _ in 0..Batch::MAX_EVENTS { |
| 658 | assert!(batch.push(small).unwrap()); |
| 659 | } |
| 660 | assert!(!batch.push(small).unwrap(), "the event count still bounds"); |
| 661 | } |
| 662 | } |
| 663 |