Enum ProcessState 

pub enum ProcessState {
    Alive,
    Unverified(String),
    Gone(String),
}

What layers 1 and 2 say about the process a record names.

Only Gone licenses unlinking the record. Unverified is a reading that failed, which says nothing about the process either way.

Variants

Alive

The pid is held by the process that wrote the record.

Unverified(String)

The pid is held and its start time could not be read, so whether the holder wrote the record is unknown. The record is kept and the pid is never signalled; the string is the reason.

Gone(String)

The process is gone — nothing holds the pid, or the process holding it started at another time than the recorded one. The string says which.

Implementations

impl ProcessState

pub fn is_running(&self) -> bool

Whether the record still names a running capsule: Alive, or Unverified because something holds the pid and it may be the capsule.

A reading of the state already taken; it prunes and signals nothing. Only the negation, Gone, licenses unlinking the record.

Trait Implementations

impl Clone for ProcessState

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProcessState

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

Formats the value using the given formatter.

impl Eq for ProcessState

impl PartialEq for ProcessState

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ProcessState