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From: "brian m. carlson" <sandals@crustytoothpaste.net>
To: git@vger.kernel.org
Cc: Jeff King <peff@peff.net>, Nguyễn Thái Ngọc Duy  <pclouds@gmail.com>
Subject: [PATCH 10/20] sha1_name: convert struct disambiguate_state to object_id
Date: Sat, 18 Mar 2017 21:19:44 +0000
Message-ID: <20170318211954.564030-11-sandals@crustytoothpaste.net> (raw)
In-Reply-To: <20170318211954.564030-1-sandals@crustytoothpaste.net>

Convert struct disambiguate_state to use struct object_id by changing
the structure definition and applying the following semantic patch:

@@
struct disambiguate_state E1;
@@
- E1.bin_pfx
+ E1.bin_pfx.hash

@@
struct disambiguate_state *E1;
@@
- E1->bin_pfx
+ E1->bin_pfx.hash

@@
struct disambiguate_state E1;
@@
- E1.candidate
+ E1.candidate.hash

@@
struct disambiguate_state *E1;
@@
- E1->candidate
+ E1->candidate.hash

This conversion is needed so we can convert disambiguate_hint_fn later.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 sha1_name.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/sha1_name.c b/sha1_name.c
index 3db166b40b..cf6f4be0c6 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -16,11 +16,11 @@ typedef int (*disambiguate_hint_fn)(const unsigned char *, void *);
 struct disambiguate_state {
 	int len; /* length of prefix in hex chars */
 	char hex_pfx[GIT_MAX_HEXSZ + 1];
-	unsigned char bin_pfx[GIT_MAX_RAWSZ];
+	struct object_id bin_pfx;
 
 	disambiguate_hint_fn fn;
 	void *cb_data;
-	unsigned char candidate[GIT_MAX_RAWSZ];
+	struct object_id candidate;
 	unsigned candidate_exists:1;
 	unsigned candidate_checked:1;
 	unsigned candidate_ok:1;
@@ -37,10 +37,10 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
 	}
 	if (!ds->candidate_exists) {
 		/* this is the first candidate */
-		hashcpy(ds->candidate, current);
+		hashcpy(ds->candidate.hash, current);
 		ds->candidate_exists = 1;
 		return;
-	} else if (!hashcmp(ds->candidate, current)) {
+	} else if (!hashcmp(ds->candidate.hash, current)) {
 		/* the same as what we already have seen */
 		return;
 	}
@@ -52,14 +52,14 @@ static void update_candidates(struct disambiguate_state *ds, const unsigned char
 	}
 
 	if (!ds->candidate_checked) {
-		ds->candidate_ok = ds->fn(ds->candidate, ds->cb_data);
+		ds->candidate_ok = ds->fn(ds->candidate.hash, ds->cb_data);
 		ds->disambiguate_fn_used = 1;
 		ds->candidate_checked = 1;
 	}
 
 	if (!ds->candidate_ok) {
 		/* discard the candidate; we know it does not satisfy fn */
-		hashcpy(ds->candidate, current);
+		hashcpy(ds->candidate.hash, current);
 		ds->candidate_checked = 0;
 		return;
 	}
@@ -151,7 +151,7 @@ static void unique_in_pack(struct packed_git *p,
 		int cmp;
 
 		current = nth_packed_object_sha1(p, mid);
-		cmp = hashcmp(ds->bin_pfx, current);
+		cmp = hashcmp(ds->bin_pfx.hash, current);
 		if (!cmp) {
 			first = mid;
 			break;
@@ -170,7 +170,7 @@ static void unique_in_pack(struct packed_git *p,
 	 */
 	for (i = first; i < num && !ds->ambiguous; i++) {
 		current = nth_packed_object_sha1(p, i);
-		if (!match_sha(ds->len, ds->bin_pfx, current))
+		if (!match_sha(ds->len, ds->bin_pfx.hash, current))
 			break;
 		update_candidates(ds, current);
 	}
@@ -213,12 +213,12 @@ static int finish_object_disambiguation(struct disambiguate_state *ds,
 		 * same repository!
 		 */
 		ds->candidate_ok = (!ds->disambiguate_fn_used ||
-				    ds->fn(ds->candidate, ds->cb_data));
+				    ds->fn(ds->candidate.hash, ds->cb_data));
 
 	if (!ds->candidate_ok)
 		return SHORT_NAME_AMBIGUOUS;
 
-	hashcpy(sha1, ds->candidate);
+	hashcpy(sha1, ds->candidate.hash);
 	return 0;
 }
 
@@ -332,7 +332,7 @@ static int init_object_disambiguation(const char *name, int len,
 		ds->hex_pfx[i] = c;
 		if (!(i & 1))
 			val <<= 4;
-		ds->bin_pfx[i >> 1] |= val;
+		ds->bin_pfx.hash[i >> 1] |= val;
 	}
 
 	ds->len = len;

  parent reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-18 21:19 [PATCH 00/20] object_id part 7 brian m. carlson
2017-03-18 21:19 ` [PATCH 01/20] Define new hash-size constants for allocating memory brian m. carlson
2017-03-18 21:19 ` [PATCH 02/20] Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ brian m. carlson
2017-03-18 21:19 ` [PATCH 03/20] Convert GIT_SHA1_RAWSZ used for allocation to GIT_MAX_RAWSZ brian m. carlson
2017-03-18 21:19 ` [PATCH 04/20] builtin/diff: convert to struct object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 05/20] builtin/pull: convert portions " brian m. carlson
2017-03-18 21:19 ` [PATCH 06/20] builtin/receive-pack: " brian m. carlson
2017-03-20 12:56   ` Duy Nguyen
2017-03-20 23:17     ` brian m. carlson
2017-03-21 10:26       ` Duy Nguyen
2017-03-18 21:19 ` [PATCH 07/20] fsck: convert init_skiplist " brian m. carlson
2017-03-18 21:19 ` [PATCH 08/20] parse-options-cb: convert sha1_array_append caller " brian m. carlson
2017-03-18 21:19 ` [PATCH 09/20] test-sha1-array: convert most code " brian m. carlson
2017-03-18 21:19 ` brian m. carlson [this message]
2017-03-20 13:07   ` [PATCH 10/20] sha1_name: convert struct disambiguate_state to object_id Duy Nguyen
2017-03-20 22:32     ` brian m. carlson
2017-03-21 10:17       ` Duy Nguyen
2017-03-18 21:19 ` [PATCH 11/20] sha1_name: convert disambiguate_hint_fn to take object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 12/20] submodule: convert check_for_new_submodule_commits to object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 13/20] builtin/pull: convert to struct object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 14/20] sha1-array: convert internal storage for struct sha1_array to object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 15/20] Make sha1_array_append take a struct object_id * brian m. carlson
2017-03-18 21:19 ` [PATCH 16/20] Convert remaining callers of sha1_array_lookup to object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 17/20] Convert sha1_array_lookup to take struct object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 18/20] Convert sha1_array_for_each_unique and for_each_abbrev to object_id brian m. carlson
2017-03-18 21:19 ` [PATCH 19/20] Rename sha1_array to oid_array brian m. carlson
2017-03-20 12:25   ` Duy Nguyen
2017-03-21  0:54     ` brian m. carlson
2017-03-18 21:19 ` [PATCH 20/20] Documentation: update and rename api-sha1-array.txt brian m. carlson
2017-03-20 13:14 ` [PATCH 00/20] object_id part 7 Duy Nguyen
2017-03-21  1:16   ` brian m. carlson

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