[PATCH v2 13/13] refs.c: change update_ref to use a transaction
From: Ronnie Sahlberg <hidden>
Date: 2016-06-15 23:00:46
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 | 28 +++++++++++++++++++++++----- 1 file changed, 23 insertions(+), 5 deletions(-)
diff --git a/refs.c b/refs.c
index 878948a..e52b6bf 100644
--- a/refs.c
+++ b/refs.c@@ -3390,11 +3390,29 @@ 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) - return 1; - return update_ref_write(action, refname, sha1, lock, onerr); + struct ref_transaction *t; + const char *str = "update_ref failed for ref '%s'."; + + t = ref_transaction_begin(); + if (!t) + goto error_return; + if (ref_transaction_update(t, refname, sha1, oldval, flags, + !!oldval)) { + ref_transaction_rollback(t); + goto error_return; + } + if (ref_transaction_commit(t, action, onerr)) + goto error_return; + + return 0; + +error_return: + switch (onerr) { + case UPDATE_REFS_MSG_ON_ERR: error(str, refname); break; + case UPDATE_REFS_DIE_ON_ERR: die(str, refname); break; + case UPDATE_REFS_QUIET_ON_ERR: break; + } + return 1; } static int ref_update_compare(const void *r1, const void *r2)
--
1.9.1.515.g3b87021