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Apply linting to worker

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n07070
2026-06-04 01:26:47 +02:00
parent ad3cb6231a
commit 2262840f75
1 changed files with 20 additions and 30 deletions
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50
src/worker.py
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@@ -1,6 +1,7 @@
# This is the main printing thread
# As explained in the task file, this is where we command
# printing to happen.
"""
This is the main printing thread. A worker thread consums Tasks from
a PrintQueue, while trying to find available printers.
"""
import threading
import time
@@ -8,13 +9,21 @@ from printers import Printers
class PrintWorker(threading.Thread):
def __init__(self, app, print_queue, socketio=None):
"""
A thread used to consume Tasks added to a Print Queue.
On initialisation, the worker will try to find Printers,
and on each print, choose an available Printer from a list of Printers.
If a print fails, it's not retried, but will be added to a list of completed
tasks.
"""
def __init__(self, app, print_queue):
super().__init__(daemon=True)
self.app = app
self.print_queue = print_queue
self.printer = None
self._lock = threading.Lock()
self.socketio = socketio # Optional
self.running = True
self.state = "idle" # idle, printing, dead, drinking-a-beer
self.app.logger.debug("Ho great, I'm alive... I'm ready to work another day...")
@@ -30,8 +39,8 @@ class PrintWorker(threading.Thread):
def run(self):
"""Background thread that processes queue items"""
self.app.logger.debug("Worker %s started working.", threading.get_ident())
self.app.logger.debug("Current threads : %s" % threading.active_count())
self.app.logger.debug("Threads actives : %s " % threading.enumerate())
self.app.logger.debug("Current threads : %s" , threading.active_count())
self.app.logger.debug("Threads actives : %s " , threading.enumerate())
while True:
@@ -40,7 +49,8 @@ class PrintWorker(threading.Thread):
time.sleep(0.2)
continue
# If we have no available printer, we look at the list printers we know about, and try to find one that is available.
# If we have no available printer, we look at the list printers
# we know about, and try to find one that is available.
# When we find a printer, we acquire it
# When we are finished with a printer, we release it to the world.
while not self.printer or not self.printer.ready:
@@ -79,7 +89,6 @@ class PrintWorker(threading.Thread):
self.app.logger.info("Got a new task")
self.app.logger.debug("Got task %s", task.task_id)
task.status = "processing"
self._emit_status(task.task_id, "processing")
print_data = task.get_print_data()
@@ -92,9 +101,8 @@ class PrintWorker(threading.Thread):
task.status = "completed"
self.print_queue.mark_completed(task.task_id, "completed")
self._emit_status(task.task_id, "completed")
self.app.logger.debug(
"Finished printing task %s " % task.task_id
"Finished printing task %s " , task.task_id
)
self.state = "idle"
@@ -102,9 +110,8 @@ class PrintWorker(threading.Thread):
task.status = "failed"
self.state = "idle"
self.print_queue.mark_completed(task.task_id, "failed")
self._emit_status(task.task_id, "failed", error=str(e))
self.app.logger.error(
"Could not print task %s because %s " % task.task_id, str(e)
"Could not print task %s because %s " , task.task_id, str(e)
)
else:
@@ -112,23 +119,6 @@ class PrintWorker(threading.Thread):
self.state = "idle"
time.sleep(0.1)
def _emit_status(self, task_id, status, error=None):
"""Emit status update via Socket.IO if available"""
if not self.socketio:
return
room = f"task_{task_id}"
data = {
"task_id": task_id,
"status": status,
"position": None, # Task no longer in queue
}
if error:
data["error"] = error
self.socketio.emit("task_status", data, room=room)
def stop_worker(self):
"""
Give the worker a break