mirror of
https://github.com/searxng/searxng
synced 2024-11-05 06:01:05 +00:00
912c7e975c
Before this commit, even with the scheduler disabled, the checker was running at least once for each uwsgi worker.
65 lines
1.6 KiB
Python
65 lines
1.6 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
|
|
import time
|
|
import uwsgi # pylint: disable=E0401
|
|
from . import shared_abstract
|
|
|
|
|
|
_last_signal = 10
|
|
|
|
|
|
class UwsgiCacheSharedDict(shared_abstract.SharedDict):
|
|
|
|
def get_int(self, key):
|
|
value = uwsgi.cache_get(key)
|
|
if value is None:
|
|
return value
|
|
else:
|
|
return int.from_bytes(value, 'big')
|
|
|
|
def set_int(self, key, value):
|
|
b = value.to_bytes(4, 'big')
|
|
uwsgi.cache_update(key, b)
|
|
|
|
def get_str(self, key):
|
|
value = uwsgi.cache_get(key)
|
|
if value is None:
|
|
return value
|
|
else:
|
|
return value.decode('utf-8')
|
|
|
|
def set_str(self, key, value):
|
|
b = value.encode('utf-8')
|
|
uwsgi.cache_update(key, b)
|
|
|
|
|
|
def schedule(delay, func, *args):
|
|
"""
|
|
Can be implemented using a spooler.
|
|
https://uwsgi-docs.readthedocs.io/en/latest/PythonDecorators.html
|
|
|
|
To make the uwsgi configuration simple, use the alternative implementation.
|
|
"""
|
|
global _last_signal
|
|
|
|
def sighandler(signum):
|
|
now = int(time.time())
|
|
key = 'scheduler_call_time_signal_' + str(signum)
|
|
uwsgi.lock()
|
|
try:
|
|
updating = uwsgi.cache_get(key)
|
|
if updating is not None:
|
|
updating = int.from_bytes(updating, 'big')
|
|
if now - updating < delay:
|
|
return
|
|
uwsgi.cache_update(key, now.to_bytes(4, 'big'))
|
|
finally:
|
|
uwsgi.unlock()
|
|
func(*args)
|
|
|
|
signal_num = _last_signal
|
|
_last_signal += 1
|
|
uwsgi.register_signal(signal_num, 'worker', sighandler)
|
|
uwsgi.add_timer(signal_num, delay)
|
|
return True
|