Integrating a simple web server into a custom main loop in python?
I have an application in python with a custom main loop (I don't believe the details are important). I'd like to integrate a simple non-blocking web server into the application which开发者_运维问答 can introspect the application objects and possibly provide an interface to manipulate them. What's the best way to do this?
I'd like to avoid anything that uses threading. The ideal solution would be a server with a "stepping" function that can be called from my main loop, do its thing, then return program control until the next go-round.
The higher-level the solution, the better (though something as monolithic as Django might be overkill).
Ideally, a solution will look like this:
def main():
"""My main loop."""
http_server = SomeCoolHttpServer(port=8888)
while True:
# Do my stuff here...
# ...
http_server.next() # Server gets it's turn.
# Do more of my stuff here...
# ...
Twisted is designed to make stuff like that fairly simple
import time
from twisted.web import server, resource
from twisted.internet import reactor
class Simple(resource.Resource):
isLeaf = True
def render_GET(self, request):
return "<html>%s Iterations!</html>"%n
def main():
global n
site = server.Site(Simple())
reactor.listenTCP(8080, site)
reactor.startRunning(False)
n=0
while True:
n+=1
if n%1000==0:
print n
time.sleep(0.001)
reactor.iterate()
if __name__=="__main__":
main()
I'd suggest creating a new thread and running a web server (such as Python's built-in SimpleHTTPServer or BaseHTTPServer). Threads really aren't that scary when it comes down to it.
from threading import Event, Thread
import BaseHTTPServer
shut_down = Event()
def http_server():
server_address = ('', 8000)
httpd = BaseHTTPServer.HTTPServer(server_address, BaseHTTPServer.BaseHTTPRequestHandler)
while not shut_down.is_set():
httpd.handle_request()
thread = Thread(target=http_server)
thread.start()
加载中,请稍侯......
精彩评论