| name | 0.2.2-understand-atomic_exchange |
| description | [0.2.2] Atomic operation that reads the current value of a variable and writes a new value in a single indivisible ste |
understand-atomic_exchange
CALL NUMBER: ?.atomic_exchange
DEFINITION: Atomic operation that reads the current value of a variable and writes a new value in a single indivisible step, returning the old value.
Invoke this skill to understand atomic_exchange 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.
THE RELATIVE ROOT (the import cone, by lib)
CONSUMERS (what needs this)
mcs_lock, mcs_lock_wait_for_successor
Projected from the concurrency synchronization primitives and memory models KB (155 concepts / 137 relations) — consistency-typed by MAP; the facet list after the colon IS the cross-lib dependency web.
(leaf — this is an actual skill.)
