Struct MigrationId 

pub struct MigrationId(pub u64);

Unique identifier for a migration operation.

Tuple Fields

0: u64

Implementations

impl MigrationId

pub fn new(slot: u16) -> Self

Generate a new migration ID from timestamp, slot, and random bits.

The ID combines nanosecond timestamp with the slot number and 16 bits of randomness. The random component prevents collisions when the system clock is unavailable (unwrap_or_default returns zero) or when two migrations for the same slot start within the same nanosecond.

Trait Implementations

impl Clone for MigrationId

fn clone(&self) -> MigrationId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MigrationId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MigrationId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for MigrationId

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 MigrationId

fn eq(&self, other: &MigrationId) -> 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 Serialize for MigrationId

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for MigrationId

impl Eq for MigrationId

impl StructuralPartialEq for MigrationId