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fff42755 VM |
1 | #ifndef PACK_BITMAP_H |
2 | #define PACK_BITMAP_H | |
3 | ||
4 | #include "ewah/ewok.h" | |
5 | #include "khash.h" | |
40d18ff8 | 6 | #include "pack.h" |
7cc8f971 | 7 | #include "pack-objects.h" |
3f267a11 | 8 | #include "string-list.h" |
fff42755 | 9 | |
ef3ca954 | 10 | struct commit; |
7c141127 | 11 | struct repository; |
ef3ca954 | 12 | struct rev_info; |
6663ae0a | 13 | struct list_objects_filter_options; |
ef3ca954 | 14 | |
af26e2a9 DL |
15 | static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'}; |
16 | ||
fff42755 | 17 | struct bitmap_disk_header { |
af26e2a9 | 18 | char magic[ARRAY_SIZE(BITMAP_IDX_SIGNATURE)]; |
fff42755 VM |
19 | uint16_t version; |
20 | uint16_t options; | |
21 | uint32_t entry_count; | |
0f4d6cad | 22 | unsigned char checksum[GIT_MAX_RAWSZ]; |
fff42755 VM |
23 | }; |
24 | ||
7cc8f971 VM |
25 | #define NEEDS_BITMAP (1u<<22) |
26 | ||
fff42755 | 27 | enum pack_bitmap_opts { |
ae4f07fb VM |
28 | BITMAP_OPT_FULL_DAG = 1, |
29 | BITMAP_OPT_HASH_CACHE = 4, | |
fff42755 VM |
30 | }; |
31 | ||
7cc8f971 VM |
32 | enum pack_bitmap_flags { |
33 | BITMAP_FLAG_REUSE = 0x1 | |
34 | }; | |
35 | ||
fff42755 | 36 | typedef int (*show_reachable_fn)( |
20664967 | 37 | const struct object_id *oid, |
fff42755 VM |
38 | enum object_type type, |
39 | int flags, | |
40 | uint32_t hash, | |
41 | struct packed_git *found_pack, | |
42 | off_t found_offset); | |
43 | ||
3ae5fa07 JT |
44 | struct bitmap_index; |
45 | ||
7c141127 | 46 | struct bitmap_index *prepare_bitmap_git(struct repository *r); |
bfbb60d3 | 47 | struct bitmap_index *prepare_midx_bitmap_git(struct multi_pack_index *midx); |
3ae5fa07 JT |
48 | void count_bitmap_commit_list(struct bitmap_index *, uint32_t *commits, |
49 | uint32_t *trees, uint32_t *blobs, uint32_t *tags); | |
50 | void traverse_bitmap_commit_list(struct bitmap_index *, | |
4eb707eb | 51 | struct rev_info *revs, |
3ae5fa07 | 52 | show_reachable_fn show_reachable); |
fff42755 | 53 | void test_bitmap_walk(struct rev_info *revs); |
dff5e49e | 54 | int test_bitmap_commits(struct repository *r); |
a05f02b1 | 55 | int test_bitmap_hashes(struct repository *r); |
6663ae0a | 56 | struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs, |
9cf68b27 PS |
57 | struct list_objects_filter_options *filter, |
58 | int filter_provided_objects); | |
6d08b9d4 | 59 | uint32_t midx_preferred_pack(struct bitmap_index *bitmap_git); |
3ae5fa07 JT |
60 | int reuse_partial_packfile_from_bitmap(struct bitmap_index *, |
61 | struct packed_git **packfile, | |
bb514de3 JK |
62 | uint32_t *entries, |
63 | struct bitmap **reuse_out); | |
3ae5fa07 | 64 | int rebuild_existing_bitmaps(struct bitmap_index *, struct packing_data *mapping, |
d2bc62b1 | 65 | kh_oid_map_t *reused_bitmaps, int show_progress); |
f3c23db2 | 66 | void free_bitmap_index(struct bitmap_index *); |
40d18ff8 JK |
67 | int bitmap_walk_contains(struct bitmap_index *, |
68 | struct bitmap *bitmap, const struct object_id *oid); | |
7cc8f971 | 69 | |
30cdc33f | 70 | /* |
5476fb07 | 71 | * After a traversal has been performed by prepare_bitmap_walk(), this can be |
30cdc33f JK |
72 | * queried to see if a particular object was reachable from any of the |
73 | * objects flagged as UNINTERESTING. | |
74 | */ | |
3c771448 | 75 | int bitmap_has_oid_in_uninteresting(struct bitmap_index *, const struct object_id *oid); |
30cdc33f | 76 | |
16950f83 JK |
77 | off_t get_disk_usage_from_bitmap(struct bitmap_index *, struct rev_info *); |
78 | ||
7cc8f971 VM |
79 | void bitmap_writer_show_progress(int show); |
80 | void bitmap_writer_set_checksum(unsigned char *sha1); | |
06af3bba NTND |
81 | void bitmap_writer_build_type_index(struct packing_data *to_pack, |
82 | struct pack_idx_entry **index, | |
83 | uint32_t index_nr); | |
449fa5ee JK |
84 | uint32_t *create_bitmap_mapping(struct bitmap_index *bitmap_git, |
85 | struct packing_data *mapping); | |
86 | int rebuild_bitmap(const uint32_t *reposition, | |
87 | struct ewah_bitmap *source, | |
88 | struct bitmap *dest); | |
98c31f36 TB |
89 | struct ewah_bitmap *bitmap_for_commit(struct bitmap_index *bitmap_git, |
90 | struct commit *commit); | |
7cc8f971 VM |
91 | void bitmap_writer_select_commits(struct commit **indexed_commits, |
92 | unsigned int indexed_commits_nr, int max_bitmaps); | |
3ba3d062 | 93 | int bitmap_writer_build(struct packing_data *to_pack); |
7cc8f971 VM |
94 | void bitmap_writer_finish(struct pack_idx_entry **index, |
95 | uint32_t index_nr, | |
ae4f07fb VM |
96 | const char *filename, |
97 | uint16_t options); | |
0f533c72 TB |
98 | char *midx_bitmap_filename(struct multi_pack_index *midx); |
99 | char *pack_bitmap_filename(struct packed_git *p); | |
100 | ||
101 | int bitmap_is_midx(struct bitmap_index *bitmap_git); | |
fff42755 | 102 | |
3f267a11 | 103 | const struct string_list *bitmap_preferred_tips(struct repository *r); |
711260fd | 104 | int bitmap_is_preferred_refname(struct repository *r, const char *refname); |
3f267a11 | 105 | |
fff42755 | 106 | #endif |