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From: Eric Wong <e@80x24.org>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org
Subject: [PATCH 00/11] hashmap: bugfixes, safety fixes, and WIP improvements
Date: Mon, 26 Aug 2019 02:43:21 +0000	[thread overview]
Message-ID: <20190826024332.3403-1-e@80x24.org> (raw)

This started out as yak-shaving exercise to introduce the
"container_of" macro to make hashmap more flexible and
less error-prone.

So far I've ended up finding and fixing two real bugs in
patches 1/11 and 2/11 which should be fast-tracked.

Patches 3-9 are straightforward safety fixes to prevent future
bugs of the same type.

10-11 are work-in-progress changes to remove the limitation
of hashmap_entry being the first member of a struct.  It's
also part of my ongoing agenda to spread Linux kernel idioms
into userspace and maybe get git.git hackers more comfortable
with kernel hacking (and vice-versa :>)

I'll try to continue the rest within the next few days.


The following changes since commit 745f6812895b31c02b29bdfe4ae8e5498f776c26:

  First batch after Git 2.23 (2019-08-22 12:41:04 -0700)

are available in the Git repository at:

  https://80x24.org/git-svn.git hashmap-wip-v1

for you to fetch changes up to 4d9857917670218cba447caddec15a2734c86e2c:

  hashmap_get_next returns "struct hashmap_entry *" (2019-08-26 02:25:35 +0000)

----------------------------------------------------------------
Eric Wong (11):
      diff: use hashmap_entry_init on moved_entry.ent
      packfile: use hashmap_entry in delta_base_cache_entry
      hashmap_entry_init takes "struct hashmap_entry *"
      hashmap_entry: detect improper initialization
      hashmap_get_next takes "const struct hashmap_entry *"
      hashmap_add takes "struct hashmap_entry *"
      hashmap_get takes "const struct hashmap_entry *"
      hashmap_remove takes "const struct hashmap_entry *"
      hashmap_put takes "struct hashmap_entry *"
      introduce container_of macro
      hashmap_get_next returns "struct hashmap_entry *"

 attr.c                              |  8 +++----
 blame.c                             | 12 +++++-----
 builtin/describe.c                  |  4 ++--
 builtin/difftool.c                  | 17 +++++++-------
 builtin/fast-export.c               |  9 ++++----
 builtin/fetch.c                     |  4 ++--
 config.c                            |  8 +++----
 diff.c                              | 23 ++++++++++++-------
 diffcore-rename.c                   | 15 ++++++++-----
 git-compat-util.h                   | 10 +++++++++
 hashmap.c                           | 30 ++++++++++++++-----------
 hashmap.h                           | 45 +++++++++++++++++++++----------------
 merge-recursive.c                   | 27 +++++++++++-----------
 name-hash.c                         | 41 +++++++++++++++++----------------
 oidmap.c                            |  2 +-
 packfile.c                          |  8 +++----
 patch-ids.c                         |  6 ++---
 range-diff.c                        |  8 +++----
 ref-filter.c                        |  5 +++--
 refs.c                              |  7 ++++--
 remote.c                            |  8 ++++---
 revision.c                          |  9 ++++----
 sequencer.c                         |  9 ++++----
 sub-process.c                       | 10 ++++-----
 submodule-config.c                  | 20 ++++++++---------
 t/helper/test-hashmap.c             | 24 +++++++++++---------
 t/helper/test-lazy-init-name-hash.c |  4 ++--
 27 files changed, 210 insertions(+), 163 deletions(-)

             reply	other threads:[~2019-08-26  2:43 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-26  2:43 Eric Wong [this message]
2019-08-26  2:43 ` [PATCH 01/11] diff: use hashmap_entry_init on moved_entry.ent Eric Wong
2019-08-27 13:31   ` Derrick Stolee
2019-08-26  2:43 ` [PATCH 02/11] packfile: use hashmap_entry in delta_base_cache_entry Eric Wong
2019-08-26  2:43 ` [PATCH 03/11] hashmap_entry_init takes "struct hashmap_entry *" Eric Wong
2019-08-27 13:35   ` Derrick Stolee
2019-08-28 15:01     ` Johannes Schindelin
2019-08-30 19:48       ` Eric Wong
2019-09-02 13:46         ` Johannes Schindelin
2019-08-26  2:43 ` [PATCH 04/11] hashmap_entry: detect improper initialization Eric Wong
2019-08-27  9:10   ` Johannes Schindelin
2019-08-27  9:49     ` Eric Wong
2019-08-27 22:16       ` Junio C Hamano
2019-08-28 15:04         ` Johannes Schindelin
2019-08-28  9:03       ` Phillip Wood
2019-08-30 19:52         ` Eric Wong
2019-09-08  7:49   ` [RFC 04/11] coccicheck: detect hashmap_entry.hash assignment Eric Wong
2019-09-09 18:15     ` Junio C Hamano
2019-08-26  2:43 ` [PATCH 05/11] hashmap_get_next takes "const struct hashmap_entry *" Eric Wong
2019-08-26  2:43 ` [PATCH 06/11] hashmap_add takes "struct " Eric Wong
2019-08-26  2:43 ` [PATCH 07/11] hashmap_get takes "const struct " Eric Wong
2019-08-26  2:43 ` [PATCH 08/11] hashmap_remove " Eric Wong
2019-08-26  2:43 ` [PATCH 09/11] hashmap_put takes "struct " Eric Wong
2019-08-26  2:43 ` [PATCH 10/11] introduce container_of macro Eric Wong
2019-08-27 14:49   ` Derrick Stolee
2019-08-28  9:11     ` Phillip Wood
2019-08-30 19:43     ` Eric Wong
2019-08-26  2:43 ` [PATCH 11/11] hashmap_get_next returns "struct hashmap_entry *" Eric Wong
2019-08-27 14:53   ` Derrick Stolee
2019-08-30 19:36     ` Eric Wong
2019-09-24  1:03 ` [PATCH v2 00/19] hashmap bug/safety/ease-of-use fixes Eric Wong
2019-09-24  1:03   ` [PATCH v2 01/19] diff: use hashmap_entry_init on moved_entry.ent Eric Wong
2019-09-24  1:03   ` [PATCH v2 02/19] coccicheck: detect hashmap_entry.hash assignment Eric Wong
2019-09-25 12:44     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 03/19] packfile: use hashmap_entry in delta_base_cache_entry Eric Wong
2019-09-24  1:03   ` [PATCH v2 04/19] hashmap_entry_init takes "struct hashmap_entry *" Eric Wong
2019-09-25 12:48     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 05/19] hashmap_get_next takes "const struct " Eric Wong
2019-09-24  1:03   ` [PATCH v2 06/19] hashmap_add takes "struct " Eric Wong
2019-09-24  1:03   ` [PATCH v2 07/19] hashmap_get takes "const struct " Eric Wong
2019-09-25 12:52     ` Derrick Stolee
2019-09-30  9:57       ` Eric Wong
2019-09-24  1:03   ` [PATCH v2 08/19] hashmap_remove " Eric Wong
2019-09-25 12:54     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 09/19] hashmap_put takes "struct " Eric Wong
2019-09-24  1:03   ` [PATCH v2 10/19] introduce container_of macro Eric Wong
2019-09-25 13:12     ` Derrick Stolee
2019-09-30 10:39       ` Eric Wong
2019-09-24  1:03   ` [PATCH v2 11/19] hashmap_get_next returns "struct hashmap_entry *" Eric Wong
2019-09-25 13:05     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 12/19] hashmap: use *_entry APIs to wrap container_of Eric Wong
2019-09-25 13:15     ` Derrick Stolee
2019-09-24  1:03   ` [PATCH v2 13/19] hashmap_get{,_from_hash} return "struct hashmap_entry *" Eric Wong
2019-09-24  1:03   ` [PATCH v2 14/19] hashmap_cmp_fn takes hashmap_entry params Eric Wong
2019-09-24  1:03   ` [PATCH v2 15/19] hashmap: use *_entry APIs for iteration Eric Wong
2019-09-24  1:03   ` [PATCH v2 16/19] hashmap: hashmap_{put,remove} return hashmap_entry * Eric Wong
2019-09-24  1:03   ` [PATCH v2 17/19] hashmap: introduce hashmap_free_entries Eric Wong
2019-09-24  1:03   ` [PATCH v2 18/19] OFFSETOF_VAR macro to simplify hashmap iterators Eric Wong
2019-09-30 16:58     ` Junio C Hamano
2019-10-04  1:18     ` Junio C Hamano
2019-10-04  2:51       ` Eric Wong
2019-10-04  3:29         ` Junio C Hamano
2019-10-04 17:26           ` Eric Wong
2019-10-06  0:04             ` Junio C Hamano
2019-09-24  1:03   ` [PATCH v2 19/19] hashmap: remove type arg from hashmap_{get,put,remove}_entry Eric Wong
2019-09-25 12:42     ` Derrick Stolee
2019-09-25 13:30   ` [PATCH v2 00/19] hashmap bug/safety/ease-of-use fixes Derrick Stolee
2019-09-26  8:39   ` Johannes Schindelin
2019-09-30 10:01     ` Eric Wong
2019-09-26 13:48   ` Phillip Wood
2019-09-29  9:22   ` Junio C Hamano

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