[PATCH v3 17/19] refs.c: change update_ref to use a transaction
From: Ronnie Sahlberg <hidden>
Date: 2016-06-15 23:00:49
Subsystem:
the rest · Maintainer:
Linus Torvalds
Change the update_ref helper function to use a ref transaction internally. Signed-off-by: Ronnie Sahlberg <redacted> --- refs.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/refs.c b/refs.c
index 1557c3c..95df4a9 100644
--- a/refs.c
+++ b/refs.c@@ -3397,11 +3397,26 @@ int update_ref(const char *action, const char *refname, const unsigned char *sha1, const unsigned char *oldval, int flags, enum action_on_err onerr) { - struct ref_lock *lock; - lock = update_ref_lock(refname, oldval, flags, NULL, onerr); - if (!lock) + struct ref_transaction *t; + char *err = NULL; + + t = ref_transaction_begin(); + if ((!t || + ref_transaction_update(t, refname, sha1, oldval, flags, + !!oldval)) || + (ref_transaction_commit(t, action, &err) && !(t = NULL))) { + const char *str = "update_ref failed for ref '%s': %s"; + + ref_transaction_rollback(t); + switch (onerr) { + case UPDATE_REFS_MSG_ON_ERR: error(str, refname, err); break; + case UPDATE_REFS_DIE_ON_ERR: die(str, refname, err); break; + case UPDATE_REFS_QUIET_ON_ERR: break; + free(err); + } return 1; - return update_ref_write(action, refname, sha1, lock, NULL, onerr); + } + return 0; } static int ref_update_compare(const void *r1, const void *r2)
--
1.9.1.521.g5dc89fa