Struct WriteSetLocks 

pub struct WriteSetLocks { /* private fields */ }

Bundle of per-record locks held by a single writer’s commit critical section. Holding the locks here (rather than scattered MutexGuards) makes drop order deterministic — all locks release when this struct drops, regardless of which release path (commit / abort / panic) the writer took.

Lock acquisition is always sorted by id so any two transactions touching the same record set acquire the locks in the same order. That’s the standard prevention strategy for the simplest deadlock scenario — two writers each holding one of the other’s locks.

Implementations

impl WriteSetLocks

pub fn acquire(table: &LockTable, write_set: &MutationWriteSet) -> Self

Acquire write locks for every record in the write set, sorted by id. Returns once all locks are held; the caller’s commit runs without contention on these records until WriteSetLocks drops.