Struct Stopped 

pub struct Stopped {
    pub checkpoint: Option<Seq>,
    pub checkpoint_error: Option<String>,
}

What a clean stop managed to do, for the caller to report.

The checkpoint is reported rather than returned as an error because a snapshot that fails must not keep the socket on the filesystem or the writer lock held — the next kernel would inherit both. It is reported rather than swallowed because a barrier that has silently stopped firing grows recovery time without bound, and the first anyone hears of it is a restart that replays the whole log.

Fields

checkpoint: Option<Seq>

The sequence the parting snapshot was taken at, if one was.

checkpoint_error: Option<String>

Why there is no checkpoint, when the reason is a failure rather than having nothing to snapshot.

Trait Implementations

impl Debug for Stopped

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

Formats the value using the given formatter.

impl Default for Stopped

fn default() -> Stopped

Returns the “default value” for a type.