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Move to gevent production http server

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Tanner Collin 2019-11-08 02:37:57 +00:00
parent 6826f731c7
commit 38b5f2dbeb
1 changed files with 56 additions and 40 deletions
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96
apiserver/server.py
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@ -17,6 +17,12 @@ from flask import abort, Flask, request, render_template
from werkzeug.exceptions import NotFound
from flask_cors import CORS
import gevent
from gevent import monkey
from gevent.pywsgi import WSGIServer
monkey.patch_all()
archive.init()
CACHE_LENGTH = 300
@ -99,11 +105,6 @@ def static_story(sid):
url=url,
description=description)
print('Starting Flask...')
web_thread = threading.Thread(target=flask_app.run, kwargs={'port': 33842})
web_thread.setDaemon(True)
web_thread.start()
def new_id():
nid = gen_rand_id()
while nid in news_cache or archive.get_story(nid):
@ -117,42 +118,57 @@ def remove_ref(old_ref):
old_id = news_ref_to_id.pop(old_ref)
logging.info('Removed ref {} id {}.'.format(old_ref, old_id))
http_server = WSGIServer(('', 33842), flask_app)
def feed_thread():
global news_index
try:
while True:
# onboard new stories
if news_index == 0:
feed_list = feed.list()
new_items = [(ref, source) for ref, source in feed_list if ref not in news_list]
for ref, source in new_items:
news_list.insert(0, ref)
nid = new_id()
news_ref_to_id[ref] = nid
news_cache[nid] = dict(id=nid, ref=ref, source=source)
if len(new_items):
logging.info('Added {} new refs.'.format(len(new_items)))
# drop old ones
while len(news_list) > CACHE_LENGTH:
old_ref = news_list[-1]
remove_ref(old_ref)
# update current stories
if news_index < len(news_list):
update_ref = news_list[news_index]
update_id = news_ref_to_id[update_ref]
news_story = news_cache[update_id]
valid = feed.update_story(news_story)
if valid:
archive.update(news_story)
else:
remove_ref(update_ref)
gevent.sleep(3)
news_index += 1
if news_index == CACHE_LENGTH: news_index = 0
except BaseException as e:
logging.error('feed_thread error: {} {}'.format(e.__class__.__name__, e))
http_server.stop()
print('Starting Feed thread...')
gevent.spawn(feed_thread)
print('Starting HTTP thread...')
try:
while True:
# onboard new stories
if news_index == 0:
feed_list = feed.list()
new_items = [(ref, source) for ref, source in feed_list if ref not in news_list]
for ref, source in new_items:
news_list.insert(0, ref)
nid = new_id()
news_ref_to_id[ref] = nid
news_cache[nid] = dict(id=nid, ref=ref, source=source)
if len(new_items):
logging.info('Added {} new refs.'.format(len(new_items)))
# drop old ones
while len(news_list) > CACHE_LENGTH:
old_ref = news_list[-1]
remove_ref(old_ref)
# update current stories
if news_index < len(news_list):
update_ref = news_list[news_index]
update_id = news_ref_to_id[update_ref]
news_story = news_cache[update_id]
valid = feed.update_story(news_story)
if valid:
archive.update(news_story)
else:
remove_ref(update_ref)
time.sleep(3)
news_index += 1
if news_index == CACHE_LENGTH: news_index = 0
http_server.serve_forever()
except KeyboardInterrupt:
logging.info('Exiting...')
finally: