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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" | |
7cc8f971 | 6 | #include "pack-objects.h" |
fff42755 | 7 | |
ef3ca954 | 8 | struct commit; |
7c141127 | 9 | struct repository; |
ef3ca954 EN |
10 | struct rev_info; |
11 | ||
fff42755 VM |
12 | struct bitmap_disk_header { |
13 | char magic[4]; | |
14 | uint16_t version; | |
15 | uint16_t options; | |
16 | uint32_t entry_count; | |
17 | unsigned char checksum[20]; | |
18 | }; | |
19 | ||
20 | static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'}; | |
21 | ||
7cc8f971 VM |
22 | #define NEEDS_BITMAP (1u<<22) |
23 | ||
fff42755 | 24 | enum pack_bitmap_opts { |
ae4f07fb VM |
25 | BITMAP_OPT_FULL_DAG = 1, |
26 | BITMAP_OPT_HASH_CACHE = 4, | |
fff42755 VM |
27 | }; |
28 | ||
7cc8f971 VM |
29 | enum pack_bitmap_flags { |
30 | BITMAP_FLAG_REUSE = 0x1 | |
31 | }; | |
32 | ||
fff42755 | 33 | typedef int (*show_reachable_fn)( |
20664967 | 34 | const struct object_id *oid, |
fff42755 VM |
35 | enum object_type type, |
36 | int flags, | |
37 | uint32_t hash, | |
38 | struct packed_git *found_pack, | |
39 | off_t found_offset); | |
40 | ||
3ae5fa07 JT |
41 | struct bitmap_index; |
42 | ||
7c141127 | 43 | struct bitmap_index *prepare_bitmap_git(struct repository *r); |
3ae5fa07 JT |
44 | void count_bitmap_commit_list(struct bitmap_index *, uint32_t *commits, |
45 | uint32_t *trees, uint32_t *blobs, uint32_t *tags); | |
46 | void traverse_bitmap_commit_list(struct bitmap_index *, | |
47 | show_reachable_fn show_reachable); | |
fff42755 | 48 | void test_bitmap_walk(struct rev_info *revs); |
3ae5fa07 JT |
49 | struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs); |
50 | int reuse_partial_packfile_from_bitmap(struct bitmap_index *, | |
51 | struct packed_git **packfile, | |
52 | uint32_t *entries, off_t *up_to); | |
53 | int rebuild_existing_bitmaps(struct bitmap_index *, struct packing_data *mapping, | |
54 | khash_sha1 *reused_bitmaps, int show_progress); | |
f3c23db2 | 55 | void free_bitmap_index(struct bitmap_index *); |
7cc8f971 | 56 | |
30cdc33f | 57 | /* |
5476fb07 | 58 | * After a traversal has been performed by prepare_bitmap_walk(), this can be |
30cdc33f JK |
59 | * queried to see if a particular object was reachable from any of the |
60 | * objects flagged as UNINTERESTING. | |
61 | */ | |
62 | int bitmap_has_sha1_in_uninteresting(struct bitmap_index *, const unsigned char *sha1); | |
63 | ||
7cc8f971 VM |
64 | void bitmap_writer_show_progress(int show); |
65 | void bitmap_writer_set_checksum(unsigned char *sha1); | |
06af3bba NTND |
66 | void bitmap_writer_build_type_index(struct packing_data *to_pack, |
67 | struct pack_idx_entry **index, | |
68 | uint32_t index_nr); | |
7cc8f971 VM |
69 | void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack); |
70 | void bitmap_writer_select_commits(struct commit **indexed_commits, | |
71 | unsigned int indexed_commits_nr, int max_bitmaps); | |
72 | void bitmap_writer_build(struct packing_data *to_pack); | |
73 | void bitmap_writer_finish(struct pack_idx_entry **index, | |
74 | uint32_t index_nr, | |
ae4f07fb VM |
75 | const char *filename, |
76 | uint16_t options); | |
fff42755 VM |
77 | |
78 | #endif |