[PATCH v4 04/23] pack-objects: factor out name_hash
- From
Jeff King <peff@peff.net>
- Date
- Dec 21, 2013, 13:59 UTC
- Message-ID
- <20131221135939.GD21145@sigill.intra.peff.net>
- In-Reply-To
- <20131221135651.GA20818@sigill.intra.peff.net>
From: Vicent Marti <tanoku@gmail.com>
As the pack-objects system grows beyond the single pack-objects.c file, more parts (like the soon-to-exist bitmap code) will need to compute hashes for matching deltas. Factor out name_hash to make it available to other files.
Signed-off-by: Vicent Marti <tanoku@gmail.com> Signed-off-by: Jeff King <peff@peff.net> --- builtin/pack-objects.c | 24 ++---------------------- pack-objects.h | 20 ++++++++++++++++++++ 2 files changed, 22 insertions(+), 22 deletions(-)
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index f3f0cf9..faf746b 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -778,26 +778,6 @@ static void write_pack_file(void) written, nr_result); } -static uint32_t name_hash(const char *name) -{ - uint32_t c, hash = 0; - - if (!name) - return 0; - - /* - * This effectively just creates a sortable number from the - * last sixteen non-whitespace characters. Last characters - * count "most", so things that end in ".c" sort together. - */ - while ((c = *name++) != 0) { - if (isspace(c)) - continue; - hash = (hash >> 2) + (c << 24); - } - return hash; -} - static void setup_delta_attr_check(struct git_attr_check *check) { static struct git_attr *attr_delta; @@ -826,7 +806,7 @@ static int add_object_entry(const unsigned char *sha1, enum object_type type, struct object_entry *entry; struct packed_git *p, *found_pack = NULL; off_t found_offset = 0; - uint32_t hash = name_hash(name); + uint32_t hash = pack_name_hash(name); uint32_t index_pos; entry = packlist_find(&to_pack, sha1, &index_pos); @@ -1082,7 +1062,7 @@ static void add_preferred_base_object(const char *name) { struct pbase_tree *it; int cmplen; - unsigned hash = name_hash(name); + unsigned hash = pack_name_hash(name); if (!num_preferred_base || check_pbase_path(hash)) return; diff --git a/pack-objects.h b/pack-objects.h index f528215..90ad0a8 100644 --- a/pack-objects.h +++ b/pack-objects.h @@ -44,4 +44,24 @@ struct object_entry *packlist_find(struct packing_data *pdata, const unsigned char *sha1, uint32_t *index_pos); +static inline uint32_t pack_name_hash(const char *name) +{ + uint32_t c, hash = 0; + + if (!name) + return 0; + + /* + * This effectively just creates a sortable number from the + * last sixteen non-whitespace characters. Last characters + * count "most", so things that end in ".c" sort together. + */ + while ((c = *name++) != 0) { + if (isspace(c)) + continue; + hash = (hash >> 2) + (c << 24); + } + return hash; +} + #endif
-- 1.8.5.1.399.g900e7cd