git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH 13/26] sha1-lookup: switch hard-coded constants to the_hash_algo

From
brian m. carlson <sandals@crustytoothpaste.net>
Date
Aug 18, 2019, 20:04 UTC
Message-ID
<20190818200427.870753-14-sandals@crustytoothpaste.net>
In-Reply-To
<20190818200427.870753-1-sandals@crustytoothpaste.net>

Switch a hard-coded 18 to be a reference to the_hash_algo. Rename the sha1 parameter to be called hash instead.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 sha1-lookup.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/sha1-lookup.c b/sha1-lookup.c
index 796ab68da8..93d9af0805 100644
--- a/sha1-lookup.c
+++ b/sha1-lookup.c
@@ -50,7 +50,7 @@ static uint32_t take2(const unsigned char *sha1)
  * The sha1 of element i (between 0 and nr - 1) should be returned
  * by "fn(i, table)".
  */
-int sha1_pos(const unsigned char *sha1, void *table, size_t nr,
+int sha1_pos(const unsigned char *hash, void *table, size_t nr,
 	     sha1_access_fn fn)
 {
 	size_t hi = nr;
@@ -63,10 +63,10 @@ int sha1_pos(const unsigned char *sha1, void *table, size_t nr,
 	if (nr != 1) {
 		size_t lov, hiv, miv, ofs;
 
-		for (ofs = 0; ofs < 18; ofs += 2) {
+		for (ofs = 0; ofs < the_hash_algo->rawsz - 2; ofs += 2) {
 			lov = take2(fn(0, table) + ofs);
 			hiv = take2(fn(nr - 1, table) + ofs);
-			miv = take2(sha1 + ofs);
+			miv = take2(hash + ofs);
 			if (miv < lov)
 				return -1;
 			if (hiv < miv)
@@ -88,7 +88,7 @@ int sha1_pos(const unsigned char *sha1, void *table, size_t nr,
 
 	do {
 		int cmp;
-		cmp = hashcmp(fn(mi, table), sha1);
+		cmp = hashcmp(fn(mi, table), hash);
 		if (!cmp)
 			return mi;
 		if (cmp > 0)
Previous: Derrick Stolee
Message 33 of 33 in “object_id part 17”
  1. 00/26 object_id part 17brian m. carlson, Aug 18, 2019
  2. 01/26 builtin/replace: make hash size independentbrian m. carlson, Aug 18, 2019
  3. 04/26 builtin/receive-pack: switch to use the_hash_algobrian m. carlson, Aug 18, 2019
  4. 03/26 fetch-pack: use parse_oid_hexbrian m. carlson, Aug 18, 2019
  5. 02/26 patch-id: convert to use the_hash_algobrian m. carlson, Aug 18, 2019
  6. René ScharfeAug 20, 2019
  7. brian m. carlsonAug 20, 2019
  8. Junio C HamanoAug 22, 2019
  9. 07/26 blame: remove needless comparison with GIT_SHA1_HEXSZbrian m. carlson, Aug 18, 2019
  10. 11/26 combine-diff: replace GIT_SHA1_HEXSZ with the_hash_algobrian m. carlson, Aug 18, 2019
  11. 10/26 bundle: switch to use the_hash_algobrian m. carlson, Aug 18, 2019
  12. 09/26 connected: switch GIT_SHA1_HEXSZ to the_hash_algobrian m. carlson, Aug 18, 2019
  13. 05/26 builtin/blame: switch uses of GIT_SHA1_HEXSZ to the_hash_algobrian m. carlson, Aug 18, 2019
  14. 06/26 builtin/rev-parse: switch to use the_hash_algobrian m. carlson, Aug 18, 2019
  15. 16/26 pack-write: use hash_to_hex when writing checksumsbrian m. carlson, Aug 18, 2019
  16. 17/26 builtin/repack: write object IDs of the proper lengthbrian m. carlson, Aug 18, 2019
  17. 19/26 cache: remove null_sha1brian m. carlson, Aug 18, 2019
  18. 18/26 builtin/worktree: switch null_sha1 to null_oidbrian m. carlson, Aug 18, 2019
  19. 20/26 wt-status: convert struct wt_status to object_idbrian m. carlson, Aug 18, 2019
  20. 15/26 sequencer: convert to use the_hash_algobrian m. carlson, Aug 18, 2019
  21. 12/26 config: use the_hash_algo in abbrev comparisonbrian m. carlson, Aug 18, 2019
  22. 21/26 packfile: replace sha1_to_hexbrian m. carlson, Aug 18, 2019
  23. 14/26 bisect: switch to using the_hash_algobrian m. carlson, Aug 18, 2019
  24. 22/26 builtin/index-pack: replace sha1_to_hexbrian m. carlson, Aug 18, 2019
  25. 25/26 builtin/show-index: replace sha1_to_hexbrian m. carlson, Aug 18, 2019
  26. 24/26 rerere: replace sha1_to_hexbrian m. carlson, Aug 18, 2019
  27. 08/26 show-index: switch hard-coded constants to the_hash_algobrian m. carlson, Aug 18, 2019
  28. 23/26 builtin/receive-pack: replace sha1_to_hexbrian m. carlson, Aug 18, 2019
  29. 26/26 midx: switch to using the_hash_algobrian m. carlson, Aug 18, 2019
  30. Derrick StoleeAug 22, 2019
  31. brian m. carlsonAug 23, 2019
  32. Derrick StoleeAug 23, 2019
  33. 13/26 sha1-lookup: switch hard-coded constants to the_hash_algobrian m. carlson, Aug 18, 2019

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.