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memory_db.py
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37 lines (32 loc) · 775 Bytes
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# -*- coding: utf-8 -*-
"""
Created on 2020/4/21 11:42 PM
---------
@summary: 基于内存的队列，代替redis
---------
@author: Boris
@email: boris_liu@foxmail.com
"""
from queue import PriorityQueue
class MemoryDB:
def __init__(self):
self.priority_queue = PriorityQueue()
def add(self, item):
"""
添加任务
:param item: 数据: 支持小于号比较的类 或者 （priority, item）
:return:
"""
self.priority_queue.put(item)
def get(self):
"""
获取任务
:return:
"""
try:
item = self.priority_queue.get_nowait()
return item
except:
return
def empty(self):
return self.priority_queue.empty()