| 1 | #ifndef PACK_BITMAP_H
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| 2 | #define PACK_BITMAP_H
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| 3 |
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| 4 | #include "ewah/ewok.h"
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| 5 | #include "khash.h"
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| 6 | #include "pack-objects.h"
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| 7 |
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| 8 | struct bitmap_disk_entry {
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| 9 | uint32_t object_pos;
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| 10 | uint8_t xor_offset;
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| 11 | uint8_t flags;
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| 12 | } __attribute__((packed));
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| 13 |
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| 14 | struct bitmap_disk_header {
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| 15 | char magic[4];
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| 16 | uint16_t version;
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| 17 | uint16_t options;
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| 18 | uint32_t entry_count;
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| 19 | unsigned char checksum[20];
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| 20 | };
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| 21 |
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| 22 | static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'};
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| 23 |
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| 24 | #define NEEDS_BITMAP (1u<<22)
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| 25 |
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| 26 | enum pack_bitmap_opts {
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| 27 | BITMAP_OPT_FULL_DAG = 1,
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| 28 | BITMAP_OPT_HASH_CACHE = 4,
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| 29 | };
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| 30 |
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| 31 | enum pack_bitmap_flags {
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| 32 | BITMAP_FLAG_REUSE = 0x1
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| 33 | };
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| 34 |
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| 35 | typedef int (*show_reachable_fn)(
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| 36 | const unsigned char *sha1,
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| 37 | enum object_type type,
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| 38 | int flags,
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| 39 | uint32_t hash,
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| 40 | struct packed_git *found_pack,
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| 41 | off_t found_offset);
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| 42 |
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| 43 | int prepare_bitmap_git(void);
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| 44 | void count_bitmap_commit_list(uint32_t *commits, uint32_t *trees, uint32_t *blobs, uint32_t *tags);
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| 45 | void traverse_bitmap_commit_list(show_reachable_fn show_reachable);
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| 46 | void test_bitmap_walk(struct rev_info *revs);
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| 47 | char *pack_bitmap_filename(struct packed_git *p);
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| 48 | int prepare_bitmap_walk(struct rev_info *revs);
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| 49 | int reuse_partial_packfile_from_bitmap(struct packed_git **packfile, uint32_t *entries, off_t *up_to);
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| 50 | int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bitmaps, int show_progress);
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| 51 |
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| 52 | void bitmap_writer_show_progress(int show);
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| 53 | void bitmap_writer_set_checksum(unsigned char *sha1);
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| 54 | void bitmap_writer_build_type_index(struct pack_idx_entry **index, uint32_t index_nr);
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| 55 | void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack);
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| 56 | void bitmap_writer_select_commits(struct commit **indexed_commits,
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| 57 | unsigned int indexed_commits_nr, int max_bitmaps);
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| 58 | void bitmap_writer_build(struct packing_data *to_pack);
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| 59 | void bitmap_writer_finish(struct pack_idx_entry **index,
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| 60 | uint32_t index_nr,
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| 61 | const char *filename,
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| 62 | uint16_t options);
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| 63 |
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| 64 | #endif
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