[fix] checker: fix engine statistics

Without this commit, the URL /stats/errors shows percentage above 100% after the checker has run.

2 files changed, 5 insertions, 2 deletions

diff --git a/searx/search/checker/impl.py b/searx/search/checker/impl.py
index 71a941f73..244536f1b 100644
--- a/searx/search/checker/impl.py
+++ b/searx/search/checker/impl.py
@@ -4,6 +4,7 @@ import typing
 import types
 import functools
 import itertools
+import threading
 from time import time
 from urllib.parse import urlparse
 
@@ -377,6 +378,8 @@ class Checker:
         engineref_category = search_query.engineref_list[0].category
         params = self.processor.get_params(search_query, engineref_category)
         if params is not None:
+            with threading.RLock():
+                self.processor.engine.stats['sent_search_count'] += 1
             self.processor.search(search_query.query, params, result_container, time(), 5)
         return result_container
 
diff --git a/searx/search/processors/abstract.py b/searx/search/processors/abstract.py
index eb8d296ec..3a853d49e 100644
--- a/searx/search/processors/abstract.py
+++ b/searx/search/processors/abstract.py
@@ -1,13 +1,13 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 
-from abc import abstractmethod
+from abc import abstractmethod, ABC
 from searx import logger
 
 
 logger = logger.getChild('searx.search.processor')
 
 
-class EngineProcessor:
+class EngineProcessor(ABC):
 
     def __init__(self, engine, engine_name):
         self.engine = engine