From: mhagger@alum.mit.edu
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org, Jeff King <peff@peff.net>,
Jakub Narebski <jnareb@gmail.com>,
Heiko Voigt <hvoigt@hvoigt.net>,
Johan Herland <johan@herland.net>,
Michael Haggerty <mhagger@alum.mit.edu>
Subject: [PATCH 10/30] refs: wrap top-level ref_dirs in ref_entries
Date: Wed, 25 Apr 2012 00:45:16 +0200 [thread overview]
Message-ID: <1335307536-26914-11-git-send-email-mhagger@alum.mit.edu> (raw)
In-Reply-To: <1335307536-26914-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>
Wrap the top-level ref_dirs in REF_DIR style ref_entries so that we
have the flag and name available when dealing with them. This
affects:
* cache_ref::loose
* cache_ref::packed
* extra_refs
The next several commits will expand the use of ref_entry as opposed
to ref_dir, culminating in the ability of a ref_entry representing a
directory of loose references to load itself only when used.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
refs.c | 37 +++++++++++++++++++------------------
1 file changed, 19 insertions(+), 18 deletions(-)
diff --git a/refs.c b/refs.c
index 989c10d..4c92dc9 100644
--- a/refs.c
+++ b/refs.c
@@ -606,26 +606,26 @@ static int is_refname_available(const char *refname, const char *oldrefname,
*/
static struct ref_cache {
struct ref_cache *next;
- char did_loose;
- char did_packed;
- struct ref_dir loose;
- struct ref_dir packed;
+ struct ref_entry *loose;
+ struct ref_entry *packed;
/* The submodule name, or "" for the main repo. */
char name[FLEX_ARRAY];
} *ref_cache;
static void clear_packed_ref_cache(struct ref_cache *refs)
{
- if (refs->did_packed)
- clear_ref_dir(&refs->packed);
- refs->did_packed = 0;
+ if (refs->packed) {
+ free_ref_entry(refs->packed);
+ refs->packed = NULL;
+ }
}
static void clear_loose_ref_cache(struct ref_cache *refs)
{
- if (refs->did_loose)
- clear_ref_dir(&refs->loose);
- refs->did_loose = 0;
+ if (refs->loose) {
+ free_ref_entry(refs->loose);
+ refs->loose = NULL;
+ }
}
static struct ref_cache *create_ref_cache(const char *submodule)
@@ -739,22 +739,22 @@ static void read_packed_refs(FILE *f, struct ref_dir *dir)
static struct ref_dir *get_packed_refs(struct ref_cache *refs)
{
- if (!refs->did_packed) {
+ if (!refs->packed) {
const char *packed_refs_file;
FILE *f;
+ refs->packed = create_dir_entry("");
if (*refs->name)
packed_refs_file = git_path_submodule(refs->name, "packed-refs");
else
packed_refs_file = git_path("packed-refs");
f = fopen(packed_refs_file, "r");
if (f) {
- read_packed_refs(f, &refs->packed);
+ read_packed_refs(f, &refs->packed->u.subdir);
fclose(f);
}
- refs->did_packed = 1;
}
- return &refs->packed;
+ return &refs->packed->u.subdir;
}
void add_packed_ref(const char *refname, const unsigned char *sha1)
@@ -832,12 +832,13 @@ static void get_ref_dir(struct ref_cache *refs, const char *dirname,
static struct ref_dir *get_loose_refs(struct ref_cache *refs)
{
- if (!refs->did_loose) {
+ if (!refs->loose) {
+ refs->loose = create_dir_entry("");
get_ref_dir(refs, "refs/",
- &search_for_subdir(&refs->loose, "refs/", 1)->u.subdir);
- refs->did_loose = 1;
+ &search_for_subdir(&refs->loose->u.subdir,
+ "refs/", 1)->u.subdir);
}
- return &refs->loose;
+ return &refs->loose->u.subdir;
}
/* We allow "recursive" symbolic refs. Only within reason, though */
--
1.7.10
next prev parent reply other threads:[~2012-04-24 22:57 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-24 22:45 [PATCH 00/30] Read loose references lazily mhagger
2012-04-24 22:45 ` [PATCH 01/30] get_ref_dir(): return early if directory cannot be read mhagger
2012-04-24 22:45 ` [PATCH 02/30] get_ref_dir(): use a strbuf to hold refname mhagger
2012-04-24 22:45 ` [PATCH 03/30] get_ref_dir(): rename "base" parameter to "dirname" mhagger
2012-04-24 22:45 ` [PATCH 04/30] get_ref_dir(): require that the dirname argument ends in '/' mhagger
2012-04-24 22:45 ` [PATCH 05/30] refs.c: extract function search_for_subdir() mhagger
2012-04-24 22:45 ` [PATCH 06/30] get_ref_dir(): take the containing directory as argument mhagger
2012-04-24 22:45 ` [PATCH 07/30] do_for_each_reflog(): return early on error mhagger
2012-04-24 22:45 ` [PATCH 08/30] do_for_each_reflog(): use a strbuf to hold logfile name mhagger
2012-04-24 22:45 ` [PATCH 09/30] do_for_each_reflog(): reuse strbuf across recursive function calls mhagger
2012-04-24 22:45 ` mhagger [this message]
2012-04-26 14:38 ` [PATCH 10/30] refs: wrap top-level ref_dirs in ref_entries Michael Haggerty
2012-04-24 22:45 ` [PATCH 11/30] get_packed_refs(): return (ref_entry *) instead of (ref_dir *) mhagger
2012-04-24 22:45 ` [PATCH 12/30] get_loose_refs(): " mhagger
2012-04-24 22:45 ` [PATCH 13/30] is_refname_available(): take " mhagger
2012-04-24 22:45 ` [PATCH 14/30] find_ref(): " mhagger
2012-04-24 22:45 ` [PATCH 15/30] read_packed_refs(): " mhagger
2012-04-24 22:45 ` [PATCH 16/30] add_ref(): " mhagger
2012-04-24 22:45 ` [PATCH 17/30] find_containing_direntry(): use " mhagger
2012-04-24 22:45 ` [PATCH 18/30] get_ref_dir(): take " mhagger
2012-04-24 22:45 ` [PATCH 19/30] get_ref_dir(): remove dirname argument mhagger
2012-04-24 22:45 ` [PATCH 20/30] search_for_subdir(): take (ref_entry *) instead of (ref_dir *) mhagger
2012-04-24 22:45 ` [PATCH 21/30] search_ref_dir(): " mhagger
2012-04-24 22:45 ` [PATCH 22/30] add_entry(): " mhagger
2012-04-24 22:45 ` [PATCH 23/30] do_for_each_ref_in_dirs(): " mhagger
2012-04-24 22:45 ` [PATCH 24/30] do_for_each_ref_in_dir(): " mhagger
2012-04-24 22:45 ` [PATCH 25/30] sort_ref_dir(): " mhagger
2012-04-24 22:45 ` [PATCH 26/30] struct ref_dir: store a reference to the enclosing ref_cache mhagger
2012-04-24 22:45 ` [PATCH 27/30] read_loose_refs(): rename function from get_ref_dir() mhagger
2012-04-24 22:45 ` [PATCH 28/30] read_loose_refs(): access ref_cache via the ref_dir field mhagger
2012-04-24 22:45 ` [PATCH 29/30] create_dir_entry(): allow the flag value to be passed as an argument mhagger
2012-04-25 18:31 ` Junio C Hamano
2012-04-25 18:52 ` Junio C Hamano
2012-04-26 21:12 ` Michael Haggerty
2012-04-24 22:45 ` [PATCH 30/30] refs: read loose references lazily mhagger
2012-04-25 18:39 ` [PATCH 00/30] Read " Junio C Hamano
2012-04-26 21:33 ` Michael Haggerty
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