Module controller 

ShellController struct + inner state definitions, constructor, and the small accessor / lock / meta helpers. The Controller trait impl and the spawn/IO orchestration live in super::lifecycle.

Structs

ShellController

ShellController manages one shell or command block.

ShellControllerInner 🔒

Constants

KILL_GRACE_SECS 🔒

Inner state protected by mutex. Grace period (seconds) between SIGTERM and SIGKILL during stop().

SHELL_INPUT_CH_SIZE 🔒

Cap on the out-of-order input reorder buffer (input_seq_buf).

Type Aliases

ConnFactory

Factory function type for creating ConnInterface instances. This allows dependency injection for testing.