Struct tikv::storage::txn::commands::pessimistic_rollback::PessimisticRollback

pub struct PessimisticRollback {
    pub ctx: Context,
    pub keys: Vec<Key>,
    pub start_ts: TimeStamp,
    pub for_update_ts: TimeStamp,
}

Rollback pessimistic locks identified by start_ts and for_update_ts.

This can roll back an AcquirePessimisticLock command.

Fields

ctx: Context

keys: Vec<Key>

The keys to be rolled back.

start_ts: TimeStamp

The transaction timestamp.

for_update_ts: TimeStamp

Implementations

impl PessimisticRollback

pub fn new(
    keys: Vec<Key>,
    start_ts: TimeStamp,
    for_update_ts: TimeStamp,
    ctx: Context
) -> TypedCommand<Vec<StorageResult<()>>>

Return a TypedCommand that encapsulates the result of executing this command.

Trait Implementations

impl CommandExt for PessimisticRollback

fn get_ctx(&self) -> &Context

fn get_ctx_mut(&mut self) -> &mut Context

fn tag(&self) -> CommandKind

fn incr_cmd_metric(&self)

fn ts(&self) -> TimeStamp

fn write_bytes(&self) -> usize

fn gen_lock(&self) -> Lock

fn readonly(&self) -> bool

fn is_sys_cmd(&self) -> bool

fn can_be_pipelined(&self) -> bool

impl Debug for PessimisticRollback

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

Formats the value using the given formatter.

impl Display for PessimisticRollback

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

Formats the value using the given formatter.

impl<S: Snapshot, L: LockManager> WriteCommand<S, L> for PessimisticRollback

fn process_write(
    self,
    snapshot: S,
    context: WriteContext<'_, L>
) -> Result<WriteResult>

Delete any pessimistic lock with small for_update_ts belongs to this transaction.