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