Created
January 3, 2014 23:14
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| import random | |
| import signal | |
| import gevent | |
| import redis | |
| REDIS_URL = 'redis://127.0.0.1:6379' | |
| REDIS_CHANNEL = 'pubsub_demo' | |
| redis = redis.from_url(REDIS_URL) | |
| def publisher(pid): | |
| gevent.sleep(random.randint(0, 5) * 0.001) | |
| redis.publish(REDIS_CHANNEL, 'message from publisher %d' % pid) | |
| def subscriber(): | |
| pubsub = redis.pubsub() | |
| pubsub.subscribe(REDIS_CHANNEL) | |
| for message in pubsub.listen(): | |
| gevent.sleep(0.1) | |
| if message['type'] == 'message': | |
| print message['data'] | |
| def main(): | |
| tasks = [] | |
| tasks.append(gevent.spawn(subscriber)) | |
| tasks.extend([gevent.spawn(publisher, i) for i in xrange(20)]) | |
| gevent.joinall(tasks) | |
| if __name__ == '__main__': | |
| main() |
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