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Simple class for Threading with Queues
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# -*- coding: utf-8 -*- | |
from threading import Thread | |
from queue import Queue | |
class Worker(Thread): | |
""" | |
Thread executing tasks from a given tasks queue | |
http://code.activestate.com/recipes/577187-python-thread-pool/ | |
""" | |
def __init__(self, tasks): | |
Thread.__init__(self) | |
self.tasks = tasks | |
self.daemon = True | |
self.start() | |
def run(self): | |
while True: | |
func, args, kargs = self.tasks.get() | |
try: func(*args, **kargs) | |
except Exception as e: print(e) | |
self.tasks.task_done() | |
class ThreadPool: | |
""" | |
Pool of threads consuming tasks from a queue | |
http://code.activestate.com/recipes/577187-python-thread-pool/ | |
""" | |
def __init__(self, num_threads): | |
self.tasks = Queue(num_threads) | |
for _ in range(num_threads): Worker(self.tasks) | |
def add_task(self, func, *args, **kargs): | |
"""Add a task to the queue""" | |
self.tasks.put((func, args, kargs)) | |
def wait_completion(self): | |
"""Wait for completion of all the tasks in the queue""" | |
self.tasks.join() |
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