Enum StateReadError 

pub enum StateReadError {
    NotFound,
    Parse,
    Io(Error),
}

Error returned by read_state_json. NotFound (absent) and Parse (present-but-unreadable JSON / empty / atomic-rename window) are transient: the poll loop retries. Io is a non-transient filesystem fault (EACCES/EROFS/EISDIR) that Python lets propagate rather than mask as a timeout — the poll loop surfaces it as a fatal error.

Variants

NotFound

Parse

Io(Error)

Trait Implementations

impl Debug for StateReadError

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

Formats the value using the given formatter.