From: Jonathan Nieder <jrnieder@gmail.com>
To: Michael Haggerty <mhagger@alum.mit.edu>
Cc: "Junio C Hamano" <gitster@pobox.com>,
"Johannes Sixt" <j6t@kdbg.org>,
"Torsten Bögershausen" <tboegi@web.de>,
"Jeff King" <peff@peff.net>,
"Ronnie Sahlberg" <sahlberg@google.com>,
git@vger.kernel.org
Subject: Re: [PATCH v5 20/35] api-lockfile: document edge cases
Date: Tue, 16 Sep 2014 15:23:44 -0700 [thread overview]
Message-ID: <20140916222344.GT29050@google.com> (raw)
In-Reply-To: <1410896036-12750-21-git-send-email-mhagger@alum.mit.edu>
Michael Haggerty wrote:
> * Document the behavior of commit_lock_file() when it fails, namely
> that it rolls back the lock_file object and sets errno
> appropriately.
>
> * Document the behavior of rollback_lock_file() when called for a
> lock_file object that has already been committed or rolled back,
> namely that it is a NOOP.
I think this would be easier to read in a separate error handling
section. That way, when writing new code using the lockfile API,
I can quickly find what functions to use and quickly find out what
the error handling conventions are --- each use of the documentation
wouldn't interfere with the other.
Jonathan
next prev parent reply other threads:[~2014-09-16 22:23 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 19:33 [PATCH v5 00/35] Lockfile correctness and refactoring Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 01/35] unable_to_lock_die(): rename function from unable_to_lock_index_die() Michael Haggerty
2014-09-16 19:52 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 02/35] api-lockfile: expand the documentation Michael Haggerty
2014-09-16 20:25 ` Jonathan Nieder
2014-09-22 14:13 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 03/35] rollback_lock_file(): do not clear filename redundantly Michael Haggerty
2014-09-16 20:37 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 04/35] rollback_lock_file(): exit early if lock is not active Michael Haggerty
2014-09-16 20:38 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 05/35] rollback_lock_file(): set fd to -1 Michael Haggerty
2014-09-16 20:38 ` Jonathan Nieder
2014-09-16 20:39 ` Jonathan Nieder
2014-09-17 15:02 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 06/35] lockfile: unlock file if lockfile permissions cannot be adjusted Michael Haggerty
2014-09-16 20:42 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 07/35] hold_lock_file_for_append(): release lock on errors Michael Haggerty
2014-09-16 20:48 ` Jonathan Nieder
2014-09-17 15:39 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 08/35] lock_file(): always add lock_file object to lock_file_list Michael Haggerty
2014-09-16 20:57 ` Jonathan Nieder
2014-09-17 16:10 ` Michael Haggerty
2014-09-18 4:32 ` Torsten Bögershausen
2014-09-18 7:47 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 09/35] lockfile.c: document the various states of lock_file objects Michael Haggerty
2014-09-16 21:03 ` Jonathan Nieder
2014-09-22 15:20 ` Michael Haggerty
2014-09-22 22:34 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 10/35] cache.h: define constants LOCK_SUFFIX and LOCK_SUFFIX_LEN Michael Haggerty
2014-09-16 21:05 ` Jonathan Nieder
2014-09-22 15:25 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 11/35] delete_ref_loose(): don't muck around in the lock_file's filename Michael Haggerty
2014-09-16 21:11 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 12/35] prepare_index(): declare return value to be (const char *) Michael Haggerty
2014-09-16 21:17 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 13/35] write_packed_entry_fn(): convert cb_data into a (const int *) Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 14/35] lock_file(): exit early if lockfile cannot be opened Michael Haggerty
2014-09-16 22:12 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 15/35] remove_lock_file(): call rollback_lock_file() Michael Haggerty
2014-09-16 22:13 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 16/35] commit_lock_file(): inline temporary variable Michael Haggerty
2014-09-16 22:16 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 17/35] commit_lock_file(): die() if called for unlocked lockfile object Michael Haggerty
2014-09-16 22:17 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 18/35] commit_lock_file(): if close fails, roll back Michael Haggerty
2014-09-16 22:19 ` Jonathan Nieder
2014-09-23 11:30 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 19/35] commit_lock_file(): rollback lock file on failure to rename Michael Haggerty
2014-09-16 22:22 ` Jonathan Nieder
2014-09-23 11:57 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 20/35] api-lockfile: document edge cases Michael Haggerty
2014-09-16 22:23 ` Jonathan Nieder [this message]
2014-09-23 12:56 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 21/35] dump_marks(): remove a redundant call to rollback_lock_file() Michael Haggerty
2014-09-16 22:24 ` Jonathan Nieder
2014-09-16 19:33 ` [PATCH v5 22/35] git_config_set_multivar_in_file(): avoid " Michael Haggerty
2014-09-16 22:28 ` Jonathan Nieder
2014-09-23 13:08 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 23/35] lockfile: avoid transitory invalid states Michael Haggerty
2014-09-16 22:45 ` Jonathan Nieder
2014-09-23 13:40 ` Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 24/35] struct lock_file: declare some fields volatile Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 25/35] try_merge_strategy(): remove redundant lock_file allocation Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 26/35] try_merge_strategy(): use a statically-allocated lock_file object Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 27/35] commit_lock_file(): use a strbuf to manage temporary space Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 28/35] Change lock_file::filename into a strbuf Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 29/35] resolve_symlink(): use a strbuf for internal scratch space Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 30/35] resolve_symlink(): take a strbuf parameter Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 31/35] trim_last_path_component(): replace last_path_elm() Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 32/35] Extract a function commit_lock_file_to() Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 33/35] Rename LOCK_NODEREF to LOCK_NO_DEREF Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 34/35] lockfile.c: rename static functions Michael Haggerty
2014-09-16 19:33 ` [PATCH v5 35/35] get_locked_file_path(): new function Michael Haggerty
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