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[PATCH 06/30] get_ref_dir(): take the containing directory as argument

From
mhagger@alum.mit.edu <mhagger@alum.mit.edu>
Date
Apr 24, 2012, 22:45 UTC
Message-ID
<1335307536-26914-7-git-send-email-mhagger@alum.mit.edu>
In-Reply-To
<1335307536-26914-1-git-send-email-mhagger@alum.mit.edu>
From: Michael Haggerty <mhagger@alum.mit.edu>

Previously, the "dir" argument to get_ref_dir() was a pointer to the top-level ref_dir. Change the function to expect a pointer to the ref_dir corresponding to dirname. This allows entries to be added directly to dir, without having to recurse through the reference trie each time (i.e., we can use add_entry_to_dir() instead of add_ref()).

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/refs.c b/refs.c
index 5e51c10..8670c2e 100644
--- a/refs.c
+++ b/refs.c
@@ -765,7 +765,8 @@ void add_packed_ref(const char *refname, const unsigned char *sha1)
 
 /*
  * Read the loose references for refs from the namespace dirname.
- * dirname must end with '/'.
+ * dirname must end with '/'.  dir must be the directory entry
+ * corresponding to dirname.
  */
 static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 			struct ref_dir *dir)
@@ -806,7 +807,8 @@ static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 			/* Silently ignore. */
 		} else if (S_ISDIR(st.st_mode)) {
 			strbuf_addch(&refname, '/');
-			get_ref_dir(refs, refname.buf, dir);
+			get_ref_dir(refs, refname.buf,
+				    &search_for_subdir(dir, refname.buf, 1)->u.subdir);
 		} else {
 			if (*refs->name) {
 				hashclr(sha1);
@@ -819,7 +821,8 @@ static void get_ref_dir(struct ref_cache *refs, const char *dirname,
 				hashclr(sha1);
 				flag |= REF_ISBROKEN;
 			}
-			add_ref(dir, create_ref_entry(refname.buf, sha1, flag, 1));
+			add_entry_to_dir(dir,
+					 create_ref_entry(refname.buf, sha1, flag, 1));
 		}
 		strbuf_setlen(&refname, dirnamelen);
 	}
@@ -830,7 +833,8 @@ 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) {
-		get_ref_dir(refs, "refs/", &refs->loose);
+		get_ref_dir(refs, "refs/",
+			    &search_for_subdir(&refs->loose, "refs/", 1)->u.subdir);
 		refs->did_loose = 1;
 	}
 	return &refs->loose;

-- 
1.7.10
Previous: mhagger@alum.mit.eduNext: mhagger@alum.mit.edu
Message 7 of 37 in “Read loose references lazily”
  1. 00/30 Read loose references lazilymhagger@alum.mit.edu, Apr 24, 2012
  2. 01/30 get_ref_dir(): return early if directory cannot be readmhagger@alum.mit.edu, Apr 24, 2012
  3. 02/30 get_ref_dir(): use a strbuf to hold refnamemhagger@alum.mit.edu, Apr 24, 2012
  4. 03/30 get_ref_dir(): rename "base" parameter to "dirname"mhagger@alum.mit.edu, Apr 24, 2012
  5. 04/30 get_ref_dir(): require that the dirname argument ends in '/'mhagger@alum.mit.edu, Apr 24, 2012
  6. 05/30 refs.c: extract function search_for_subdir()mhagger@alum.mit.edu, Apr 24, 2012
  7. 06/30 get_ref_dir(): take the containing directory as argumentmhagger@alum.mit.edu, Apr 24, 2012
  8. 07/30 do_for_each_reflog(): return early on errormhagger@alum.mit.edu, Apr 24, 2012
  9. 08/30 do_for_each_reflog(): use a strbuf to hold logfile namemhagger@alum.mit.edu, Apr 24, 2012
  10. 09/30 do_for_each_reflog(): reuse strbuf across recursive function callsmhagger@alum.mit.edu, Apr 24, 2012
  11. 10/30 refs: wrap top-level ref_dirs in ref_entriesmhagger@alum.mit.edu, Apr 24, 2012
  12. Michael HaggertyApr 26, 2012
  13. 11/30 get_packed_refs(): return (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  14. 12/30 get_loose_refs(): return (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  15. 13/30 is_refname_available(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  16. 14/30 find_ref(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  17. 15/30 read_packed_refs(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  18. 16/30 add_ref(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  19. 17/30 find_containing_direntry(): use (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  20. 18/30 get_ref_dir(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  21. 19/30 get_ref_dir(): remove dirname argumentmhagger@alum.mit.edu, Apr 24, 2012
  22. 20/30 search_for_subdir(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  23. 21/30 search_ref_dir(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  24. 22/30 add_entry(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  25. 23/30 do_for_each_ref_in_dirs(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  26. 24/30 do_for_each_ref_in_dir(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  27. 25/30 sort_ref_dir(): take (ref_entry *) instead of (ref_dir *)mhagger@alum.mit.edu, Apr 24, 2012
  28. 26/30 struct ref_dir: store a reference to the enclosing ref_cachemhagger@alum.mit.edu, Apr 24, 2012
  29. 27/30 read_loose_refs(): rename function from get_ref_dir()mhagger@alum.mit.edu, Apr 24, 2012
  30. 28/30 read_loose_refs(): access ref_cache via the ref_dir fieldmhagger@alum.mit.edu, Apr 24, 2012
  31. 29/30 create_dir_entry(): allow the flag value to be passed as an argumentmhagger@alum.mit.edu, Apr 24, 2012
  32. Junio C HamanoApr 25, 2012
  33. Junio C HamanoApr 25, 2012
  34. Michael HaggertyApr 26, 2012
  35. 30/30 refs: read loose references lazilymhagger@alum.mit.edu, Apr 24, 2012
  36. Junio C HamanoApr 25, 2012
  37. Michael HaggertyApr 26, 2012

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