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

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Marco Realacci 2025-03-10 16:50:21 +01:00
parent 44a201686b
commit 131672231a
2 changed files with 4 additions and 3 deletions
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4
.obsidian/workspace.json vendored
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@ -34,9 +34,9 @@
"type": "pdf", "type": "pdf",
"state": { "state": {
"file": "Concurrent Systems/slides/class 3.pdf", "file": "Concurrent Systems/slides/class 3.pdf",
"page": 8, "page": 9,
"left": -26, "left": -26,
"top": 376, "top": 381,
"zoom": 0.57541567695962 "zoom": 0.57541567695962
}, },
"icon": "lucide-file-text", "icon": "lucide-file-text",

3
Concurrent Systems/notes/3.md
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@ -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 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 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: - 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 continuare
**MUTEX:** $p_i$ and $p_j$ cannot simultaneously be in the CS: **MUTEX:** $p_i$ and $p_j$ cannot simultaneously be in the CS: