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[0.2.1] Compare-and-swap operation atomically loading a value, comparing it to an expected value, and storing a new va
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基于 SOC 职业分类
| name | 0.2.1-understand-atomic_cas |
| description | [0.2.1] Compare-and-swap operation atomically loading a value, comparing it to an expected value, and storing a new va |
CALL NUMBER: ?.atomic_cas
DEFINITION: Compare-and-swap operation atomically loading a value, comparing it to an expected value, and storing a new value only if they matched, returning whether the swap occurred.
Invoke this skill to understand atomic_cas down to its primitives. The RELATIVE ROOT below is the least-fixed-point closure of everything it bundles from — the full import cone, grouped by the lib each prim comes from. Projected from a prover-typed KB (MAP/SWI-Prolog consistency gate): every reference below resolves.
atomic_compare_exchange, mcs_lock, mcs_lock_enqueue, mcs_lock_tail
Projected from the concurrency synchronization primitives and memory models KB (407 concepts / 477 relations) — consistency-typed by MAP; the facet list after the colon IS the cross-lib dependency web.
(leaf — this is an actual skill.)
