Enum SessionExitPolicy 

pub enum SessionExitPolicy {
    Sweep,
    LetMembersSurvive,
}

Policy for what natural completion (the leader exiting on its own) does with a still-live isolated/pty session.

A background member that keeps the pty slave (or a contained descendant holding a captured pipe) open prevents the master EOF that the historical natural gate waited on — without a sweep the job would hang forever (the A4-3 seam). This policy tells Core whether the sweep is the completion trigger (default, kill-totality) or whether members may survive the leader.

Variants

Sweep

Sweep the contained session once the leader is reaped: SIGKILL live session members and hold completion until the session is empty (kill-totality, the historic containment guarantee). The sweep is the trigger, not a side-effect of EOF — a slave-holding member is killed and then the master can EOF. Cannot be combined with CancelPolicy::None (which opts out of all signaling).

LetMembersSurvive

Report completion on leader-reap without signaling the session: a background member (e.g. nohup sleep &) survives the leader, matching plain POSIX shell semantics. The leader-reap remains the completion gate so the slave-holding-member hang is still impossible.

Trait Implementations

impl Clone for SessionExitPolicy

fn clone(&self) -> SessionExitPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SessionExitPolicy

impl Debug for SessionExitPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SessionExitPolicy

fn default() -> SessionExitPolicy

Returns the “default value” for a type.

impl Eq for SessionExitPolicy

impl PartialEq for SessionExitPolicy

fn eq(&self, other: &SessionExitPolicy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SessionExitPolicy