Struct ColumnTicket 

pub struct ColumnTicket(pub usize);

Column ticket is used to ensure that no columns are generated twice within a multi-threaded environment Each worker records the time it started generated columns. When submitting new columns it uses the ticket to identify columns added by other workers in the meantime.

Tuple Fields

0: usize

Trait Implementations

impl Clone for ColumnTicket

fn clone(&self) -> ColumnTicket

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnTicket

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

Formats the value using the given formatter.

impl Hash for ColumnTicket

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ColumnTicket

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ColumnTicket

impl Eq for ColumnTicket

impl StructuralPartialEq for ColumnTicket