vault backup: 2025-03-12 12:24:27

Concurrent Systems/notes/4 - Semaphores.md

@@ -181,10 +181,9 @@ producer A:
 - but wait! Consumer B is still reading there
 - **Producer A doesn't give a fuck.**
 	![[Pasted image 20250312121828.png|200]]
-	*don't be like Producer A, be more like Bob*
-
-
+	*don't be like Producer A, be more like Bob, who always scans EMPTY before!*
 
+So the issue here is that producers just assume that IN is the first available slot. But it its not necessarily the case.
 #### The Readers/Writers problem
 - Several processes want to access a file
 - Readers may simultaneously access the file