From d03fc2668a60c00024ac0cb574f82b807ccdb492 Mon Sep 17 00:00:00 2001
From: Marco Realacci <marco@marcorealacci.me>
Date: Wed, 12 Mar 2025 12:09:27 +0100
Subject: [PATCH] vault backup: 2025-03-12 12:09:27

---
 Concurrent Systems/notes/4 - Semaphores.md | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Concurrent Systems/notes/4 - Semaphores.md b/Concurrent Systems/notes/4 - Semaphores.md
index 6f30c0c..9c6e924 100644
--- a/Concurrent Systems/notes/4 - Semaphores.md	
+++ b/Concurrent Systems/notes/4 - Semaphores.md	
@@ -167,9 +167,13 @@ consumer A:
 
 consumer B:
 - finds OUT at 1
-- sets out at 2 and starts reading
+- sets OUT at 2 and starts reading
 - finishes reading
-- 
+- sets EMPTY[1] <- tt
+
+consumer A:
+- finishes reading (finally)
+- sets EMPTY[0] <- tt