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import time
from threading import Thread, Lock
class Listener:
task_queue = []
lock = Lock()
thread = None
@classmethod
def _process_tasks(cls):
while True:
task = None
with cls.lock:
if cls.task_queue:
task = cls.task_queue.pop(0)
if task is None:
time.sleep(0.001)
continue
func, args, kwargs = task
try:
func(*args, **kwargs)
except Exception as e:
print(f"Error in listener thread: {e}")
@classmethod
def add_task(cls, func, *args, **kwargs):
with cls.lock:
cls.task_queue.append((func, args, kwargs))
if cls.thread is None:
cls.thread = Thread(target=cls._process_tasks, daemon=True)
cls.thread.start()
def async_run(func, *args, **kwargs):
Listener.add_task(func, *args, **kwargs)
class FIFOQueue:
def __init__(self):
self.queue = []
self.lock = Lock()
def push(self, item):
with self.lock:
self.queue.append(item)
def pop(self):
with self.lock:
if self.queue:
return self.queue.pop(0)
return None
def top(self):
with self.lock:
if self.queue:
return self.queue[0]
return None
def next(self):
while True:
with self.lock:
if self.queue:
return self.queue.pop(0)
time.sleep(0.001)
class AsyncStream:
def __init__(self):
self.input_queue = FIFOQueue()
self.output_queue = FIFOQueue()
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