marcorealacci/master-degree-notes
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

vault backup: 2025-03-10 16:50:21

Browse source
This commit is contained in:
Marco Realacci 2025-03-10 16:50:21 +01:00
parent 44a201686b
commit 131672231a
2 changed files with 4 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Concurrent Systems/notes/3.md
View file

@ -165,7 +165,8 @@ W.r.t. the execution of $p_j$, it can be that
- this read overlaps with `FLAG[j] <- up` by Lemma 1, `MY_TURN[i] < MY_TURN[j]` and ok
- this read is contained within the computation of `MY_TURN[j]`, but it's not possible, since `MY_TURN` is computed with the `FLAG` up
- this read overlaps with `FLAG[j] <- down` or this read happens when $p_j$ is in the bakery:
- `MY_TURN[j] has been ...
- `MY_TURN[j]` has been decided and no write will change it until $p_j$ is in the bakery, and `MY_TURN[j] > 0` of course
- When $p_i$ evaluated the second wait for j, it found out that $⟨MY_TURN[i],i⟩ < ⟨MY_TURN[j],j⟩$, good!
continuare
**MUTEX:** $p_i$ and $p_j$ cannot simultaneously be in the CS: