Module topology_lock 

Single-writer gate for WASIX linker topology changes.

While a TopologyToken is held, no other topology-changing operation may begin. The token may be moved to another thread (it is Send).

Use TopologyCoordinator::try_acquire once per cooperative retry loop alongside LinkerStateWriteBackoff, analogous to the cooperative linker-state writers in this module (write_linker_state, write_linker_state_with_topology).

Structs

TopologyCoordinator 🔒

Shared coordinator embedded in LinkerShared.

TopologyCoordinatorInner 🔒

TopologyGateState 🔒

TopologyToken 🔒

RAII lease on linker topology serialization.