From e0f7fe65261163fa3740678de8ffe4623b883a4f Mon Sep 17 00:00:00 2001
From: Unrud <unrud@outlook.com>
Date: Sun, 12 Dec 2021 19:36:23 +0100
Subject: [PATCH] Instant notification of all waiting readers

---
 radicale/storage/multifilesystem_nolock.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/radicale/storage/multifilesystem_nolock.py b/radicale/storage/multifilesystem_nolock.py
index 759af072..0ca087df 100644
--- a/radicale/storage/multifilesystem_nolock.py
+++ b/radicale/storage/multifilesystem_nolock.py
@@ -43,7 +43,6 @@ class RwLock(pathutils.RwLock):
                                     mode == "r" or self._readers == 0))
             if mode == "r":
                 self._readers += 1
-                self._cond.notify()
             else:
                 self._writer = True
         try:
@@ -53,7 +52,8 @@ class RwLock(pathutils.RwLock):
                 if mode == "r":
                     self._readers -= 1
                 self._writer = False
-                self._cond.notify()
+                if self._readers == 0:
+                    self._cond.notify_all()
 
 
 class LockDict: