Log lock waits for task adding in WorkerManager

src/Debug/DebugLock.py

@@ -0,0 +1,24 @@
+import time
+import logging
+
+import gevent.lock
+
+from Debug import Debug
+
+
+class DebugLock:
+    def __init__(self, log_after=0.01, name="Lock"):
+        self.name = name
+        self.log_after = log_after
+        self.lock = gevent.lock.Semaphore(1)
+        self.release = self.lock.release
+
+    def acquire(self, *args, **kwargs):
+        s = time.time()
+        res = self.lock.acquire(*args, **kwargs)
+        time_taken = time.time() - s
+        if time_taken >= self.log_after:
+            logging.debug("%s: Waited %.3fs after called by %s" %
+                (self.name, time_taken, Debug.formatStack())
+            )
+        return res