你的其他线程必须从WSGI服务器调用的同一应用程序启动。
下面的示例创建一个后台线程，该线程每5秒执行一次，并处理Flask路由函数也可用的数据结构。
import threading
import atexit
from flask import Flask
POOL_TIME = 5 #Seconds
# variables that are accessible from anywhere
commonDataStruct = {}
# lock to control access to variable
dataLock = threading.Lock()
# thread handler
yourThread = threading.Thread()
def create_app():
app = Flask(__name__)
def interrupt():
global yourThread
yourThread.cancel()
def doStuff():
global commonDataStruct
global yourThread
with dataLock:
# Do your stuff with commonDataStruct Here
# Set the next thread to happen
yourThread = threading.Timer(POOL_TIME, doStuff, ())
yourThread.start()
def doStuffStart():
# Do initialisation stuff here
global yourThread
# Create your thread
yourThread = threading.Timer(POOL_TIME, doStuff, ())
yourThread.start()
# Initiate
doStuffStart()
# When you kill Flask (SIGTERM), clear the trigger for the next thread
atexit.register(interrupt)
return app
app = create_app()
从Gunicorn调用它，如下所示：
gunicorn -b 0.0.0.0:5000 --log-config log.conf --pid=app.pid myfile:app
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