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tornadoserver.py
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tornadoserver.py
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from tornado.wsgi import WSGIContainer
from tornado.httpserver import HTTPServer
from tornado.ioloop import IOLoop
from tornado import autoreload
from server import create_app
import logging
import signal
import time
def sig_handler(sig, frame):
logging.warning('Caught signal: %s', sig)
IOLoop.instance().add_callback(stopTornado)
def startTornado():
global http_server
http_server = HTTPServer(WSGIContainer(create_app("settings.DevelopmentConfig")))
http_server.listen(80)
ioloop = IOLoop.instance()
autoreload.start(ioloop)
ioloop.start()
def stopTornado():
logging.info('Stopping http server')
http_server.stop()
io_loop = IOLoop.instance()
deadline = time.time() + 3
def stop_loop():
now = time.time()
if now < deadline and (io_loop._callbacks or io_loop._timeouts):
io_loop.add_timeout(now + 1, stop_loop)
else:
io_loop.stop()
logging.info('Shutdown')
stop_loop()
if __name__ == "__main__":
signal.signal(signal.SIGTERM, sig_handler)
signal.signal(signal.SIGINT, sig_handler)
startTornado()