files_transaction_cleanup(): new helper function

Extract the cleanup functionality from `files_transaction_commit()`
into a new function. It will soon have another caller.

Use the common cleanup code even on early exit if the transaction is
empty, to reduce code duplication.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty 2017-05-22 16:17:42 +02:00 committed by Junio C Hamano
parent 00d174489e
commit c0ca935764

View file

@ -2834,6 +2834,27 @@ static int lock_ref_for_update(struct files_ref_store *refs,
return 0;
}
/*
* Unlock any references in `transaction` that are still locked, and
* mark the transaction closed.
*/
static void files_transaction_cleanup(struct ref_transaction *transaction)
{
size_t i;
for (i = 0; i < transaction->nr; i++) {
struct ref_update *update = transaction->updates[i];
struct ref_lock *lock = update->backend_data;
if (lock) {
unlock_ref(lock);
update->backend_data = NULL;
}
}
transaction->state = REF_TRANSACTION_CLOSED;
}
static int files_transaction_commit(struct ref_store *ref_store,
struct ref_transaction *transaction,
struct strbuf *err)
@ -2856,10 +2877,8 @@ static int files_transaction_commit(struct ref_store *ref_store,
if (transaction->state != REF_TRANSACTION_OPEN)
die("BUG: commit called for transaction that is not open");
if (!transaction->nr) {
transaction->state = REF_TRANSACTION_CLOSED;
return 0;
}
if (!transaction->nr)
goto cleanup;
/*
* Fail if a refname appears more than once in the
@ -3005,15 +3024,11 @@ static int files_transaction_commit(struct ref_store *ref_store,
clear_loose_ref_cache(refs);
cleanup:
files_transaction_cleanup(transaction);
strbuf_release(&sb);
transaction->state = REF_TRANSACTION_CLOSED;
for (i = 0; i < transaction->nr; i++) {
struct ref_update *update = transaction->updates[i];
struct ref_lock *lock = update->backend_data;
if (lock)
unlock_ref(lock);
if (update->flags & REF_DELETED_LOOSE) {
/*