Python Locker Implementation Notes ---- python 中锁的实现

Fri, 09 Jul 2021 00:00:00 +0000

分布式锁

portalocker.RedisLock

实现方式
- redis pubsub channel

创建

1
2
3
4
5
6
7
8


import portalocker

lock = portalocker.RedisLock('some_lock_channel_name')

with lock:
print('do something here')

# *** Redis 连接设定

Redis 连接设定
- 使用 redis.client.Redis 类实现
用 RedisLock 可选关键字参数 redis_kwargs: typing.Optional[typing.Dict] = None 指定

参考

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14


class Redis:
 def __init__(self, host='localhost', port=6379,
 db=0, password=None, socket_timeout=None,
 socket_connect_timeout=None,
 socket_keepalive=None, socket_keepalive_options=None,
 connection_pool=None, unix_socket_path=None,
 encoding='utf-8', encoding_errors='strict',
 charset=None, errors=None,
 decode_responses=False, retry_on_timeout=False,
 ssl=False, ssl_keyfile=None, ssl_certfile=None,
 ssl_cert_reqs='required', ssl_ca_certs=None,
 ssl_check_hostname=False,
 max_connections=None, single_connection_client=False,
 health_check_interval=0, client_name=None, username=None):

python-redis-lock pip 包实现

参考：GitHub - ionelmc/python-redis-lock: Lock context manager implemented via redi…
模块：＝redis_lock＝
例子

Lock on Sawyer Zheng's Blog

Python Locker Implementation Notes ---- python 中锁的实现

分布式锁

portalocker.RedisLock

python-redis-lock pip 包实现