Remove "tree->entries" tree-entry list from tree parser

Instead, just use the tree buffer directly, and use the tree-walk
infrastructure to walk the buffers instead of the tree-entry list.

The tree-entry list is inefficient, and generates tons of small
allocations for no good reason. The tree-walk infrastructure is
generally no harder to use than following a linked list, and allows
us to do most tree parsing in-place.

Some programs still use the old tree-entry lists, and are a bit
painful to convert without major surgery. For them we have a helper
function that creates a temporary tree-entry list on demand.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Linus Torvalds
2006-05-29 12:18:33 -07:00
committed by Junio C Hamano
parent 1ccf5a345a
commit 2d9c58c69d
9 changed files with 117 additions and 58 deletions

View File

@ -11,6 +11,7 @@
#include "cache-tree.h"
#define REACHABLE 0x0001
#define SEEN 0x0002
static int show_root = 0;
static int show_tags = 0;
@ -161,7 +162,7 @@ static int fsck_tree(struct tree *item)
struct tree_entry_list *entry, *last;
last = NULL;
for (entry = item->entries; entry; entry = entry->next) {
for (entry = create_tree_entry_list(item); entry; entry = entry->next) {
if (strchr(entry->name, '/'))
has_full_path = 1;
has_zero_pad |= entry->zeropad;
@ -205,7 +206,6 @@ static int fsck_tree(struct tree *item)
}
if (last)
free(last);
item->entries = NULL;
free(item->buffer);
item->buffer = NULL;
@ -277,6 +277,9 @@ static int fsck_sha1(unsigned char *sha1)
struct object *obj = parse_object(sha1);
if (!obj)
return error("%s: object not found", sha1_to_hex(sha1));
if (obj->flags & SEEN)
return 0;
obj->flags |= SEEN;
if (obj->type == blob_type)
return 0;
if (obj->type == tree_type)