Function fidl_fuchsia_pkg_rewrite_ext::do_transaction

pub async fn do_transaction<T, R>(
    engine: &EngineProxy,
    cb: T
) -> Result<(), EditTransactionError>
where
    T: Fn(EditTransaction) -> R,
    R: Future<Output = Result<EditTransaction, EditTransactionError>>,

Perform a rewrite rule edit transaction, retrying as necessary if another edit transaction runs concurrently.

The given callback cb should perform the needed edits to the state of the rewrite rules but not attempt to commit() the transaction. do_transaction will internally attempt to commit the transaction and trigger a retry if necessary.