From fe419e355bf1527c51e3aee98495d08b89510320 Mon Sep 17 00:00:00 2001
From: Alexandre Flament <alex@al-f.net>
Date: Fri, 15 Jul 2022 18:38:32 +0200
Subject: The checker requires Redis

Remove the abstraction in searx.shared.SharedDict.
Implement a basic and dedicated scheduler for the checker using a Redis script.
---
 searx/shared/shared_uwsgi.py | 64 --------------------------------------------
 1 file changed, 64 deletions(-)
 delete mode 100644 searx/shared/shared_uwsgi.py

(limited to 'searx/shared/shared_uwsgi.py')

diff --git a/searx/shared/shared_uwsgi.py b/searx/shared/shared_uwsgi.py
deleted file mode 100644
index 0248c6234..000000000
--- a/searx/shared/shared_uwsgi.py
+++ /dev/null
@@ -1,64 +0,0 @@
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
-import time
-from typing import Optional
-import uwsgi  # pyright: ignore # pylint: disable=E0401
-from . import shared_abstract
-
-
-_last_signal = 10
-
-
-class UwsgiCacheSharedDict(shared_abstract.SharedDict):
-    def get_int(self, key: str) -> Optional[int]:
-        value = uwsgi.cache_get(key)
-        if value is None:
-            return value
-        else:
-            return int.from_bytes(value, 'big')
-
-    def set_int(self, key: str, value: int):
-        b = value.to_bytes(4, 'big')
-        uwsgi.cache_update(key, b)
-
-    def get_str(self, key: str) -> Optional[str]:
-        value = uwsgi.cache_get(key)
-        if value is None:
-            return value
-        else:
-            return value.decode('utf-8')
-
-    def set_str(self, key: str, value: str):
-        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
-- 
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