somew1nd
c2c90a6378
- Implement DevicePool and DeviceExecutionLock concurrency modes (per-device FIFO vs global serialization) - Extend ArtemisClient SDK and CLI with explicit device targeting and concurrency strategy configuration - Add server lifecycle management (artemis restart, stop, status) with cross-platform PID discovery - Update MCP server tools to support multi-device dispatch, trace tagging, and per-device execution - Enhance Showcase UI with step-by-step visual replay, playback speed controls, and device serial badges - Add comprehensive unit test coverage and edge-case verification scripts
743 lines
29 KiB
Python
743 lines
29 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import asyncio
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import codecs
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from datetime import datetime
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import os
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import shutil
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import subprocess
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import sys
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import time
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from typing import Any
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import uuid
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try:
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from admin_console.core.config import (
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PAUSE_FILE,
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TEST_DATA_DIR,
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TEST_OUTPUTS_DIR,
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WORKSPACE_ROOT,
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)
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from admin_console.core.state import state
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from admin_console.database.repositories.session_repository import session_repo
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from admin_console.services.media_service import media_service
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from artemis.runtime import DeviceExecutionLock, process_supervisor
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except ImportError:
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from apps.admin_console.core.config import (
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PAUSE_FILE,
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TEST_DATA_DIR,
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TEST_OUTPUTS_DIR,
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WORKSPACE_ROOT,
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)
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from apps.admin_console.core.state import state
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from apps.admin_console.database.repositories.session_repository import session_repo
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from apps.admin_console.services.media_service import media_service
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from artemis.runtime import DeviceExecutionLock, process_supervisor
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class TaskQueueService:
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"""Service managing FIFO task execution, background worker, subprocess lifecycle,
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and startup tasks.
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"""
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@classmethod
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def _broadcast_event(cls, event_type: str, data: Any):
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"""Broadcasts an event safely to all registered subscribers."""
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for cb in list(state.ipc_subscribers):
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try:
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cb(event_type, data)
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except Exception:
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pass
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@classmethod
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def _broadcast_startup_progress(
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cls, session_id: str | None, stage: str, message: str
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) -> None:
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if not session_id:
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return
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data = {
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"session_id": str(session_id),
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"stage": stage,
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"message": message,
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"timestamp": time.time(),
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}
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state.record_startup_progress(data)
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cls._broadcast_event("startup_progress", data)
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@classmethod
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def _get_next_pending_task(cls) -> dict[str, Any] | None:
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"""Finds and returns the first pending task from queue_items."""
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for item in state.queue_items:
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if isinstance(item, dict) and item.get("status") == "pending":
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return item
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return None
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@classmethod
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def _remove_task(cls, session_id: str | None):
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"""Removes a task from queue_items by session_id."""
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if not session_id:
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return
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removed_items = [
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t
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for t in state.queue_items
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if isinstance(t, dict) and t.get("session_id") == session_id
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]
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for item in removed_items:
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DeviceExecutionLock.cancel_reservation(item.get("queue_ticket"))
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state.queue_items = [
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t
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for t in state.queue_items
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if not (isinstance(t, dict) and t.get("session_id") == session_id)
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]
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@staticmethod
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def _resolve_terminal_status(
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current_status: str | None,
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returncode: int,
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was_stopped_manually: bool,
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) -> tuple[str, bool]:
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"""Resolve final status while preserving an authoritative task result.
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The worker exit code is only a fallback for sessions that have not
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reached a terminal state. ``success`` is the DataEngine alias for the
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UI-facing ``completed`` status and is normalized here.
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Returns:
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A tuple of ``(resolved_status, should_persist)``.
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"""
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if was_stopped_manually:
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return "cancelled", True
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normalized = current_status.lower().strip() if isinstance(current_status, str) else None
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if normalized == "success":
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return "completed", True
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if normalized in {"completed", "failed", "cancelled"}:
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return normalized, False
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return ("completed" if returncode == 0 else "failed"), True
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@staticmethod
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def _subprocess_creation_kwargs() -> dict[str, Any]:
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"""Isolate task workers from the UI server's Windows console.
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A new process group alone is insufficient on Windows: the worker still
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shares the parent's console, so a CTRL_C_EVENT generated anywhere in
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that console can reach the UI server. CREATE_NO_WINDOW removes that
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shared console boundary. Output is captured and forwarded explicitly
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so detached workers remain visible in the server terminal.
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"""
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if sys.platform == "win32":
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return {
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"creationflags": (
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subprocess.CREATE_NEW_PROCESS_GROUP | subprocess.CREATE_NO_WINDOW
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),
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"stdout": asyncio.subprocess.PIPE,
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"stderr": asyncio.subprocess.STDOUT,
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}
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return {}
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@staticmethod
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async def _forward_worker_output(stream: asyncio.StreamReader | None) -> None:
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"""Forward a detached Windows worker's combined output without corrupting UTF-8."""
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if stream is None:
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return
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decoder = codecs.getincrementaldecoder("utf-8")(errors="replace")
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while True:
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chunk = await stream.read(4096)
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if not chunk:
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break
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text = decoder.decode(chunk)
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if text:
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sys.stdout.write(text)
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sys.stdout.flush()
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tail = decoder.decode(b"", final=True)
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if tail:
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sys.stdout.write(tail)
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sys.stdout.flush()
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@staticmethod
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async def _finish_output_forwarder(output_task: asyncio.Task[None] | None) -> None:
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"""Drain final worker output without allowing inherited handles to stall the queue."""
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if output_task is None:
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return
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try:
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await asyncio.wait_for(asyncio.shield(output_task), timeout=2.0)
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except asyncio.CancelledError:
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if output_task.cancelled():
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return
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raise
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except TimeoutError:
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output_task.cancel()
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try:
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await output_task
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except asyncio.CancelledError:
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pass
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except Exception as exc:
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print(f"[QueueWorker] Failed to forward detached worker output: {exc}")
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@staticmethod
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async def _terminate_worker_process(proc: asyncio.subprocess.Process | None) -> None:
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"""Stop a worker without changing the established POSIX behavior."""
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if proc is None or proc.returncode is not None:
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return
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if sys.platform == "win32":
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await process_supervisor.stop_process(proc)
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return
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try:
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proc.kill()
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except ProcessLookupError:
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pass
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@staticmethod
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async def _wait_for_worker_process(proc: asyncio.subprocess.Process) -> int:
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"""Wait for worker process to exit, with watchdog fallback if PID was reaped externally."""
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while True:
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try:
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return await asyncio.wait_for(proc.wait(), timeout=1.0)
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except asyncio.TimeoutError:
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pid = getattr(proc, "pid", None)
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if pid:
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try:
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import psutil
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p = psutil.Process(pid)
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if not p.is_running() or p.status() == psutil.STATUS_ZOMBIE:
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return proc.returncode if proc.returncode is not None else -15
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except (psutil.NoSuchProcess, ProcessLookupError):
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return proc.returncode if proc.returncode is not None else -15
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except Exception:
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pass
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else:
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return proc.returncode if proc.returncode is not None else -15
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@classmethod
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def ensure_worker_running(cls):
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"""Guarantees that the background queue worker task is active and running."""
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try:
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loop = asyncio.get_running_loop()
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if state.worker_task is None or state.worker_task.done():
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state.worker_task = loop.create_task(cls.queue_worker())
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try:
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state.wake_event.set()
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except Exception:
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pass
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except RuntimeError:
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pass
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@classmethod
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async def queue_worker(cls):
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"""Persistent, self-healing background worker loop processing tasks in FIFO order."""
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print("[QueueWorker] Background worker loop initialized and running.")
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try:
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DeviceExecutionLock.cleanup_stale_locks()
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except Exception as exc:
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print(f"[QueueWorker] Initial stale lock cleanup notice: {exc}")
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while True:
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task_item = None
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sess_id = None
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goal = None
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profile = "flash"
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output_task: asyncio.Task[None] | None = None
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try:
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if state.is_running:
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await asyncio.sleep(0.2)
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continue
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# 1. Fetch the next pending task
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task_item = cls._get_next_pending_task()
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if task_item is None:
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await asyncio.sleep(0.3)
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continue
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# 2. Extract and initialize task execution metadata
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sess_id = task_item.get("session_id")
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if sess_id and str(sess_id) in getattr(state, "cancelled_session_ids", set()):
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cls._remove_task(sess_id)
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continue
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goal = task_item.get("goal")
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profile = task_item.get("profile", "flash")
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expected_output = task_item.get("expected_output")
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enable_outputter = task_item.get("enable_outputter")
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locked_app = task_item.get("locked_app_package") or task_item.get("locked_app")
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app_path = task_item.get("app_path")
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task_item["status"] = "running"
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task_item["start_time"] = time.time()
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state.current_goal = goal
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state.current_profile = profile
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state.active_session_id = sess_id
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state.was_stopped_manually = False
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cls._broadcast_startup_progress(
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sess_id, "launching", "Starting the execution process"
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)
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# Broadcast session_started so all connected clients know the task has started
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cls._broadcast_event(
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"session_started",
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{
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"session_id": sess_id,
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"initial_goal": goal,
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"profile": profile,
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"device_serial": task_item.get("device_serial"),
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},
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)
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test_name = f"web_{int(time.time())}"
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env = os.environ.copy()
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pythonpath_parts = [
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str(WORKSPACE_ROOT),
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str(WORKSPACE_ROOT / "apps" / "admin_console"),
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str(WORKSPACE_ROOT / "apps" / "cloud_service"),
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env.get("PYTHONPATH", ""),
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]
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env["PYTHONPATH"] = os.pathsep.join([p for p in pythonpath_parts if p])
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env["PYTHONUTF8"] = "1"
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env["PYTHONUNBUFFERED"] = "1"
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if state.ipc_port is not None:
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env["ARTEMIS_IPC_PORT"] = str(state.ipc_port)
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if sess_id:
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env["ARTEMIS_SESSION_ID"] = str(sess_id)
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env["ARTEMIS_TASK_INGRESS"] = "frontend"
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queue_ticket = task_item.get("queue_ticket")
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if queue_ticket:
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env[DeviceExecutionLock.QUEUE_TICKET_ENV] = str(queue_ticket)
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cmd = [
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sys.executable,
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"-m",
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"artemis.main",
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goal,
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"--profile",
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profile,
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"--test-name",
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test_name,
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]
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if sess_id:
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cmd.extend(["--session-id", str(sess_id)])
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if expected_output:
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cmd.extend(["--output-description", str(expected_output)])
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if enable_outputter is not None:
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cmd.append("--enable-outputter" if enable_outputter else "--disable-outputter")
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if locked_app:
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cmd.extend(["--locked-app", str(locked_app)])
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if app_path:
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cmd.extend(["--app-path", str(app_path)])
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device_serial = task_item.get("device_serial")
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if device_serial:
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cmd.extend(["--device-serial", str(device_serial)])
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env["ADB_DEVICE_SERIAL"] = str(device_serial)
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print(
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f"[QueueWorker] Starting task [{sess_id}]: '{goal}' (profile: {profile}, device: {device_serial or 'auto'}, outputter: {bool(expected_output or enable_outputter)})"
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)
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proc = await asyncio.create_subprocess_exec(
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*cmd,
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cwd=str(WORKSPACE_ROOT),
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env=env,
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**cls._subprocess_creation_kwargs(),
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)
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state.current_process = proc
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task_item["pid"] = proc.pid
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cls._broadcast_startup_progress(
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sess_id, "process_ready", "Execution process started"
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)
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DeviceExecutionLock.transfer_reservation(
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str(queue_ticket),
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proc.pid,
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description=f"frontend task: {goal[:120]}",
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device_id=device_serial or "pending",
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session_id=str(sess_id) if sess_id else None,
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ingress="frontend",
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)
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if sys.platform == "win32" and isinstance(proc.stdout, asyncio.StreamReader):
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output_task = asyncio.create_task(cls._forward_worker_output(proc.stdout))
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if sess_id and (
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str(sess_id) in getattr(state, "cancelled_session_ids", set())
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or state.was_stopped_manually
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):
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print(
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f"[QueueWorker] Task [{sess_id}] was cancelled during launch. Terminating."
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)
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await cls._terminate_worker_process(proc)
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# 3. Await subprocess completion
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returncode = await cls._wait_for_worker_process(proc)
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print(f"[QueueWorker] Task [{sess_id}] exited with returncode {returncode}")
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# 4. Perform fallback database status update and notification
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if sess_id:
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current_status = session_repo.get_session_status(sess_id)
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new_status, should_persist = cls._resolve_terminal_status(
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current_status,
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returncode,
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state.was_stopped_manually,
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)
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if should_persist:
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session_repo.update_session_status(sess_id, new_status, time.time())
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print(f"[QueueWorker] Updated session {sess_id} status to '{new_status}'")
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else:
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print(
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f"[QueueWorker] Preserved authoritative session {sess_id} "
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f"status '{new_status}'"
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)
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rec_info = session_repo.get_video_recording_for_session(sess_id)
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rec_status = (rec_info or {}).get("status")
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recovered_video_path = None
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if rec_status != "ready":
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try:
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video_rec_map = session_repo.get_video_recordings_map()
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video_idx = await asyncio.to_thread(media_service.build_video_index)
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recovered_url = await asyncio.to_thread(
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media_service.resolve_video_url,
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{"session_id": sess_id},
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video_rec_map,
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video_idx,
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)
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if recovered_url:
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session_repo.mark_recording_ready(sess_id, recovered_url)
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cls._broadcast_event(
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"recording_ready",
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{"session_id": sess_id, "video_url": recovered_url},
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)
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recovered_video_path = recovered_url
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except Exception as rec_err:
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print(f"[QueueWorker] Error attempting recording recovery: {rec_err}")
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if not recovered_video_path and rec_status != "ready":
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recording_error = "Task worker exited before recording finalization completed"
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if session_repo.mark_recording_failed_if_pending(sess_id, recording_error):
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cls._broadcast_event(
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"recording_failed",
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{"session_id": sess_id, "error": recording_error},
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)
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state.active_connections.pop(sess_id, None)
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cls._broadcast_event(
|
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"session_ended",
|
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{
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"session_id": sess_id,
|
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"status": new_status,
|
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"was_stopped_manually": state.was_stopped_manually,
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},
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)
|
|
|
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except asyncio.CancelledError:
|
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print("[QueueWorker] Task received cancellation signal.")
|
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if state.current_process and state.current_process.returncode is None:
|
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await cls._terminate_worker_process(state.current_process)
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break
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except Exception as e:
|
|
print(f"[QueueWorker] Unexpected error executing task: {e}")
|
|
await asyncio.sleep(0.5)
|
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finally:
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await cls._finish_output_forwarder(output_task)
|
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# 5. Clean up completed task from queue and reset execution state
|
|
if sess_id:
|
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cls._remove_task(sess_id)
|
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state.current_process = None
|
|
state.active_session_id = None
|
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state.current_goal = None
|
|
state.current_profile = None
|
|
state.was_stopped_manually = False
|
|
state.wake_event.set()
|
|
|
|
@classmethod
|
|
async def enqueue_tasks(
|
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cls,
|
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goals: list[str],
|
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profile: str = "flash",
|
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expected_output: str | None = None,
|
|
enable_outputter: bool | None = None,
|
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locked_app_package: str | None = None,
|
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app_path: str | None = None,
|
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device_serial: str | None = None,
|
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) -> dict[str, Any]:
|
|
"""Enqueues one or more goals and wakes up the background worker."""
|
|
cls.ensure_worker_running()
|
|
|
|
enqueued_tasks = []
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now = time.time()
|
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for i, goal in enumerate(goals):
|
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sess_id = str(uuid.uuid4())
|
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assigned_serial = device_serial
|
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if not assigned_serial:
|
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try:
|
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from artemis.runtime import device_pool
|
|
|
|
assigned_serial = device_pool.select_device()
|
|
except Exception:
|
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assigned_serial = None
|
|
|
|
queue_ticket = DeviceExecutionLock.reserve(
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description=f"frontend task: {goal[:120]}",
|
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device_id=assigned_serial or "pending",
|
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session_id=sess_id,
|
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ingress="frontend",
|
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)
|
|
task_item = {
|
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"session_id": sess_id,
|
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"goal": goal,
|
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"profile": profile or "flash",
|
|
"expected_output": expected_output,
|
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"enable_outputter": enable_outputter,
|
|
"locked_app_package": locked_app_package,
|
|
"app_path": app_path,
|
|
"device_serial": assigned_serial,
|
|
"status": "pending",
|
|
"queue_ticket": queue_ticket,
|
|
"created_at": now + i * 0.001,
|
|
"start_time": now + i * 0.001,
|
|
}
|
|
state.queue_items.append(task_item)
|
|
enqueued_tasks.append(task_item)
|
|
cls._broadcast_startup_progress(
|
|
sess_id, "queued", "Task received and queued"
|
|
)
|
|
|
|
# Wake worker immediately
|
|
state.wake_event.set()
|
|
|
|
return {
|
|
"status": "queued" if state.is_running else "started",
|
|
"tasks": enqueued_tasks,
|
|
"enqueued_count": len(goals),
|
|
"total_queued": len(state.queue_tasks),
|
|
}
|
|
|
|
@classmethod
|
|
def stop_tasks(cls, clear_all: bool = False) -> bool:
|
|
"""Stop the one task currently controlling the global Artemis device.
|
|
|
|
The active lease is shared by frontend, MCP, CLI, SDK, and other UI
|
|
processes. Pending tasks are intentionally preserved unless the legacy
|
|
``clear_all`` option is explicitly requested, in which case only this
|
|
frontend server's pending submissions are cleared.
|
|
"""
|
|
stopped = False
|
|
owner = DeviceExecutionLock.get_active_owner()
|
|
owner_record_exists = DeviceExecutionLock.has_owner_record()
|
|
owner_pid = owner.pid if owner else None
|
|
local_pid = getattr(state.current_process, "pid", None)
|
|
is_local_owner = bool(owner_pid and local_pid and owner_pid == local_pid)
|
|
|
|
running_item = next(
|
|
(
|
|
item
|
|
for item in state.queue_items
|
|
if isinstance(item, dict) and item.get("status") == "running"
|
|
),
|
|
None,
|
|
)
|
|
local_item = running_item or next(
|
|
(
|
|
item
|
|
for item in state.queue_items
|
|
if isinstance(item, dict) and item.get("status") == "pending"
|
|
),
|
|
None,
|
|
)
|
|
stopped_session_id = (
|
|
owner.session_id
|
|
if owner and owner.session_id
|
|
else state.active_session_id
|
|
if owner
|
|
else local_item.get("session_id")
|
|
if local_item
|
|
else None
|
|
)
|
|
|
|
if clear_all:
|
|
for item in state.queue_items:
|
|
if isinstance(item, dict) and item.get("status") != "running":
|
|
DeviceExecutionLock.cancel_reservation(item.get("queue_ticket"))
|
|
state.clear_queue()
|
|
|
|
if owner and DeviceExecutionLock.is_active_owner(owner):
|
|
stopped = process_supervisor.terminate_tree_verified(
|
|
owner.pid,
|
|
owner.process_created_at,
|
|
)
|
|
DeviceExecutionLock.cleanup_stale_locks()
|
|
elif owner is None and owner_record_exists:
|
|
# Never fall back to a frontend PID while another process has an
|
|
# owner record that is still being published or cannot be parsed.
|
|
return False
|
|
elif owner is None and state.current_process:
|
|
# The frontend worker can be stopped during its short initialization
|
|
# window before Agent acquires the global device lease.
|
|
state.was_stopped_manually = True
|
|
if local_pid:
|
|
try:
|
|
stopped = process_supervisor.terminate_tree(local_pid)
|
|
except Exception:
|
|
stopped = False
|
|
try:
|
|
state.current_process.kill()
|
|
stopped = True
|
|
except Exception:
|
|
pass
|
|
# A dead worker is already stopped; cleanup must still be treated
|
|
# as a successful, idempotent stop operation.
|
|
stopped = True
|
|
is_local_owner = True
|
|
elif owner is None and local_item:
|
|
# Cancel a frontend submission before its worker has started. This
|
|
# does not touch pending reservations created by other ingresses.
|
|
DeviceExecutionLock.cancel_reservation(local_item.get("queue_ticket"))
|
|
stopped = True
|
|
is_local_owner = True
|
|
|
|
if not stopped:
|
|
if clear_all:
|
|
state.wake_event.set()
|
|
return clear_all
|
|
|
|
if is_local_owner:
|
|
state.was_stopped_manually = True
|
|
state.current_process = None
|
|
if stopped_session_id:
|
|
state.cancelled_session_ids.add(str(stopped_session_id))
|
|
|
|
for session_id, conn_info in list(state.active_connections.items()):
|
|
if (stopped_session_id and str(session_id) == str(stopped_session_id)) or (
|
|
owner_pid and conn_info.get("pid") == owner_pid
|
|
):
|
|
state.active_connections.pop(session_id, None)
|
|
|
|
if stopped_session_id:
|
|
session_repo.update_session_status(
|
|
str(stopped_session_id), "cancelled", time.time()
|
|
)
|
|
if owner and owner.ingress == "mcp":
|
|
try:
|
|
from mcp_server.utils import trace_store
|
|
|
|
trace_store.update_trace_status(
|
|
str(stopped_session_id),
|
|
"cancelled",
|
|
error="Task stopped from the Artemis frontend.",
|
|
)
|
|
except Exception as exc:
|
|
print(f"Failed to update MCP cancellation status: {exc}")
|
|
cls._broadcast_event(
|
|
"session_ended",
|
|
{
|
|
"session_id": stopped_session_id,
|
|
"status": "cancelled",
|
|
"was_stopped_manually": True,
|
|
},
|
|
)
|
|
|
|
if state.active_session_id and (
|
|
not stopped_session_id
|
|
or str(state.active_session_id) == str(stopped_session_id)
|
|
):
|
|
state.active_session_id = None
|
|
state.current_goal = None
|
|
state.current_profile = None
|
|
|
|
if is_local_owner and stopped_session_id:
|
|
stopped_item = next(
|
|
(
|
|
item
|
|
for item in state.queue_items
|
|
if isinstance(item, dict)
|
|
and str(item.get("session_id")) == str(stopped_session_id)
|
|
),
|
|
None,
|
|
)
|
|
if stopped_item:
|
|
DeviceExecutionLock.cancel_reservation(stopped_item.get("queue_ticket"))
|
|
state.queue_items = [
|
|
item
|
|
for item in state.queue_items
|
|
if not (
|
|
isinstance(item, dict)
|
|
and str(item.get("session_id")) == str(stopped_session_id)
|
|
)
|
|
]
|
|
if clear_all:
|
|
state.queue_items = []
|
|
|
|
if PAUSE_FILE.exists():
|
|
try:
|
|
PAUSE_FILE.unlink()
|
|
except Exception:
|
|
pass
|
|
|
|
cls.ensure_worker_running()
|
|
state.wake_event.set()
|
|
return True
|
|
|
|
@classmethod
|
|
def resume_task(cls) -> bool:
|
|
if PAUSE_FILE.exists():
|
|
PAUSE_FILE.unlink()
|
|
return True
|
|
return False
|
|
|
|
@staticmethod
|
|
def archive_older_replays_on_launch():
|
|
"""Archives all existing step replay output folders on server launch."""
|
|
if TEST_OUTPUTS_DIR.exists():
|
|
archive_dir = TEST_DATA_DIR / "older"
|
|
for item in TEST_OUTPUTS_DIR.iterdir():
|
|
if item.is_dir():
|
|
archive_dir.mkdir(parents=True, exist_ok=True)
|
|
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
|
|
target_name = f"{item.name}_{timestamp}"
|
|
target_path = archive_dir / target_name
|
|
|
|
counter = 1
|
|
while target_path.exists():
|
|
target_name = f"{item.name}_{timestamp}_{counter}"
|
|
target_path = archive_dir / target_name
|
|
counter += 1
|
|
|
|
print(
|
|
f"Archiving older replay record on server launch: "
|
|
f"{item.name} -> {target_path}"
|
|
)
|
|
try:
|
|
shutil.move(str(item), str(target_path))
|
|
except Exception as e:
|
|
print(
|
|
f"Warning: Failed to archive {item.name} during server launch: {e}",
|
|
file=sys.stderr,
|
|
)
|
|
|
|
@staticmethod
|
|
def verify_chunks_exist_on_launch(replay_manager):
|
|
"""Verifies that chunked directories exist for all sessions in the database."""
|
|
print("Verifying session chunks on launch...")
|
|
try:
|
|
sessions = session_repo.get_all_sessions()
|
|
session_ids = [s.get("session_id") for s in sessions if s.get("session_id")]
|
|
print(f"Found {len(session_ids)} sessions in database to verify.")
|
|
for session_id in session_ids:
|
|
replay_manager._ensure_session_chunked(str(session_id))
|
|
except Exception as e:
|
|
print(
|
|
f"Warning: Failed to verify chunks during server launch: {e}",
|
|
file=sys.stderr,
|
|
)
|
|
|
|
|
|
task_queue_service = TaskQueueService()
|