Struct AccountSeqLock 

pub struct AccountSeqLock { /* private fields */ }

Read wrapper that retries borrowed account reads when a concurrent publish changes the backing image.

Implementations

impl AccountSeqLock

pub fn new(account: AccountSharedData) -> Self

Creates a read lock with the sequence that matches the current account view.

pub fn read<F, R>(&mut self, reader: F) -> R

where F: Fn(&AccountSharedData) -> R,

Runs reader against a stable account image.

For borrowed accounts, the sequence is checked after the read. If a writer published a new image meanwhile, the account view is reset to that active image and the read is retried.