Module subtask 

Placement policy for child-interpreter subtasks.

Worker placement is the default. Embedders with a deliberately single-threaded host may scope an execution tree to current-thread placement explicitly.

Structs

SubtaskPlacementParseError

An operator supplied a placement outside the runtime-owned vocabulary.

Enums

SubtaskPlacement

Where a subtask runs.

Constants

PLACEMENT_ENV

The environment variable that selects placement for a whole process.

PLACEMENT_VALUES

Canonical values accepted for PLACEMENT_ENV. The environment registry consumes this same vocabulary, so startup validation and placement parsing cannot drift.

Functions

placement

The placement new subtasks created on this thread will use.

scope_placement

Run inner with placement installed for every subtask its execution tree creates. The override rides [AmbientExecutionScope], so it survives the awaits and thread migrations inside inner.