X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=object.c;h=c9ca481498281adab056a364a3854180456f20f3;hb=6a1640ffc6431d66fa33c8256fd19b5ee0bc1b47;hp=427e14cae2deb42138a439f7b2d69d3e06bb9417;hpb=56fc63193975edd4b9f520b6c65c2b97ecd8ee38;p=git.git

diff --git a/object.c b/object.c
index 427e14ca..c9ca4814 100644
--- a/object.c
+++ b/object.c
@@ -1,35 +1,39 @@
+#include "cache.h"
 #include "object.h"
 #include "blob.h"
 #include "tree.h"
 #include "commit.h"
-#include "cache.h"
 #include "tag.h"
 
 struct object **objs;
-int nr_objs;
-static int obj_allocs;
+static int nr_objs;
+int obj_allocs;
 
 int track_object_refs = 1;
 
+static int hashtable_index(const unsigned char *sha1)
+{
+	unsigned int i;
+	memcpy(&i, sha1, sizeof(unsigned int));
+	return (int)(i % obj_allocs);
+}
+
 static int find_object(const unsigned char *sha1)
 {
-	int first = 0, last = nr_objs;
-
-        while (first < last) {
-                int next = (first + last) / 2;
-                struct object *obj = objs[next];
-                int cmp;
-
-                cmp = memcmp(sha1, obj->sha1, 20);
-                if (!cmp)
-                        return next;
-                if (cmp < 0) {
-                        last = next;
-                        continue;
-                }
-                first = next+1;
-        }
-        return -first-1;
+	int i;
+
+	if (!objs)
+		return -1;
+
+	i = hashtable_index(sha1);
+	while (objs[i]) {
+		if (memcmp(sha1, objs[i]->sha1, 20) == 0)
+			return i;
+		i++;
+		if (i == obj_allocs)
+			i = 0;
+	}
+	return -1 - i;
 }
 
 struct object *lookup_object(const unsigned char *sha1)
@@ -42,7 +46,7 @@ struct object *lookup_object(const unsigned char *sha1)
 
 void created_object(const unsigned char *sha1, struct object *obj)
 {
-	int pos = find_object(sha1);
+	int pos;
 
 	obj->parsed = 0;
 	memcpy(obj->sha1, sha1, 20);
@@ -50,18 +54,27 @@ void created_object(const unsigned char *sha1, struct object *obj)
 	obj->refs = NULL;
 	obj->used = 0;
 
-	if (pos >= 0)
-		die("Inserting %s twice\n", sha1_to_hex(sha1));
-	pos = -pos-1;
-
-	if (obj_allocs == nr_objs) {
-		obj_allocs = alloc_nr(obj_allocs);
+	if (obj_allocs - 1 <= nr_objs * 2) {
+		int i, count = obj_allocs;
+		obj_allocs = (obj_allocs < 32 ? 32 : 2 * obj_allocs);
 		objs = xrealloc(objs, obj_allocs * sizeof(struct object *));
+		memset(objs + count, 0, (obj_allocs - count)
+				* sizeof(struct object *));
+		for (i = 0; i < obj_allocs; i++)
+			if (objs[i]) {
+				int j = find_object(objs[i]->sha1);
+				if (j != i) {
+					j = -1 - j;
+					objs[j] = objs[i];
+					objs[i] = NULL;
+				}
+			}
 	}
 
-	/* Insert it into the right place */
-	memmove(objs + pos + 1, objs + pos, (nr_objs - pos) * 
-		sizeof(struct object *));
+	pos = find_object(sha1);
+	if (pos >= 0)
+		die("Inserting %s twice\n", sha1_to_hex(sha1));
+	pos = -pos-1;
 
 	objs[pos] = obj;
 	nr_objs++;
@@ -82,7 +95,12 @@ static int compare_object_pointers(const void *a, const void *b)
 {
 	const struct object * const *pa = a;
 	const struct object * const *pb = b;
-	return *pa - *pb;
+	if (*pa == *pb)
+		return 0;
+	else if (*pa < *pb)
+		return -1;
+	else
+		return 1;
 }
 
 void set_object_refs(struct object *obj, struct object_refs *refs)