From 9182e0ad76ebed5c9a45a6b62d333f26b6557d49 Mon Sep 17 00:00:00 2001
From: croneter <croneter@users.noreply.github.com>
Date: Fri, 13 Dec 2019 07:38:52 +0100
Subject: [PATCH] Fix PKC becoming unresponsive e.g. when switching the PMS

---
 resources/lib/app/application.py  | 3 +++
 resources/lib/backgroundthread.py | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/resources/lib/app/application.py b/resources/lib/app/application.py
index 533a7594..5738913d 100644
--- a/resources/lib/app/application.py
+++ b/resources/lib/app/application.py
@@ -65,6 +65,7 @@ class App(object):
         self.threads.append(thread)
 
     def deregister_fanart_thread(self, thread):
+        self.fanart_thread.unblock_callers()
         self.fanart_thread = None
         self.threads.remove(thread)
 
@@ -85,6 +86,7 @@ class App(object):
         self.threads.append(thread)
 
     def deregister_caching_thread(self, thread):
+        self.caching_thread.unblock_callers()
         self.caching_thread = None
         self.threads.remove(thread)
 
@@ -111,6 +113,7 @@ class App(object):
         """
         Sync thread has done it's work and is e.g. about to die
         """
+        thread.unblock_callers()
         self.threads.remove(thread)
 
     def suspend_threads(self, block=True):
diff --git a/resources/lib/backgroundthread.py b/resources/lib/backgroundthread.py
index 60acc59e..e4eb44d7 100644
--- a/resources/lib/backgroundthread.py
+++ b/resources/lib/backgroundthread.py
@@ -106,6 +106,13 @@ class KillableThread(threading.Thread):
         """
         return not self._is_not_asleep.is_set()
 
+    def unblock_callers(self):
+        """
+        Ensures that any other thread that requested this thread's suspension
+        is released
+        """
+        self._suspension_reached.set()
+
 
 class ProcessingQueue(Queue.Queue, object):
     """