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pack-objects: use bitfield for object_entry::dfs_state 

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2018-04-14 17:35:02 +02:00 committed by Junio C Hamano
parent fd9b1baef8
commit 0c6804ab4e
2 changed files with 20 additions and 11 deletions
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3
builtin/pack-objects.c
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@ -3049,6 +3049,9 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
OPT_END(),
};
if (DFS_NUM_STATES > (1 << OE_DFS_STATE_BITS))
BUG("too many dfs states, increase OE_DFS_STATE_BITS");
check_replace_refs = 0;
reset_pack_idx_option(&pack_idx_opts);

28
pack-objects.h
View File

@ -1,6 +1,21 @@
#ifndef PACK_OBJECTS_H
#define PACK_OBJECTS_H
#define OE_DFS_STATE_BITS 2
/*
* State flags for depth-first search used for analyzing delta cycles.
*
* The depth is measured in delta-links to the base (so if A is a delta
* against B, then A has a depth of 1, and B a depth of 0).
*/
enum dfs_state {
DFS_NONE = 0,
DFS_ACTIVE,
DFS_DONE,
DFS_NUM_STATES
};
/*
* basic object info
* -----------------
@ -73,19 +88,10 @@ struct object_entry {
unsigned no_try_delta:1;
unsigned tagged:1; /* near the very tip of refs */
unsigned filled:1; /* assigned write-order */
unsigned dfs_state:OE_DFS_STATE_BITS;
/*
* State flags for depth-first search used for analyzing delta cycles.
*
* The depth is measured in delta-links to the base (so if A is a delta
* against B, then A has a depth of 1, and B a depth of 0).
*/
enum {
DFS_NONE = 0,
DFS_ACTIVE,
DFS_DONE
} dfs_state;
int depth;
};
struct packing_data {