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116 lines
3.7 KiB
116 lines
3.7 KiB
#ifndef PACK_BITMAP_H |
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#define PACK_BITMAP_H |
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#include "ewah/ewok.h" |
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#include "khash.h" |
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#include "pack.h" |
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#include "pack-objects.h" |
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#include "string-list.h" |
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struct commit; |
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struct repository; |
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struct rev_info; |
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static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'}; |
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struct bitmap_disk_header { |
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char magic[ARRAY_SIZE(BITMAP_IDX_SIGNATURE)]; |
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uint16_t version; |
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uint16_t options; |
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uint32_t entry_count; |
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unsigned char checksum[GIT_MAX_RAWSZ]; |
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}; |
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#define NEEDS_BITMAP (1u<<22) |
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/* |
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* The width in bytes of a single triplet in the lookup table |
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* extension: |
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* (commit_pos, offset, xor_row) |
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* |
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* whose fields ar 32-, 64-, 32- bits wide, respectively. |
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*/ |
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#define BITMAP_LOOKUP_TABLE_TRIPLET_WIDTH (16) |
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enum pack_bitmap_opts { |
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BITMAP_OPT_FULL_DAG = 0x1, |
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BITMAP_OPT_HASH_CACHE = 0x4, |
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BITMAP_OPT_LOOKUP_TABLE = 0x10, |
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}; |
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enum pack_bitmap_flags { |
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BITMAP_FLAG_REUSE = 0x1 |
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}; |
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typedef int (*show_reachable_fn)( |
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const struct object_id *oid, |
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enum object_type type, |
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int flags, |
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uint32_t hash, |
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struct packed_git *found_pack, |
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off_t found_offset); |
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struct bitmap_index; |
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struct bitmap_index *prepare_bitmap_git(struct repository *r); |
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struct bitmap_index *prepare_midx_bitmap_git(struct multi_pack_index *midx); |
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void count_bitmap_commit_list(struct bitmap_index *, uint32_t *commits, |
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uint32_t *trees, uint32_t *blobs, uint32_t *tags); |
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void traverse_bitmap_commit_list(struct bitmap_index *, |
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struct rev_info *revs, |
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show_reachable_fn show_reachable); |
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void test_bitmap_walk(struct rev_info *revs); |
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int test_bitmap_commits(struct repository *r); |
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int test_bitmap_hashes(struct repository *r); |
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struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs, |
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int filter_provided_objects); |
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uint32_t midx_preferred_pack(struct bitmap_index *bitmap_git); |
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int reuse_partial_packfile_from_bitmap(struct bitmap_index *, |
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struct packed_git **packfile, |
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uint32_t *entries, |
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struct bitmap **reuse_out); |
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int rebuild_existing_bitmaps(struct bitmap_index *, struct packing_data *mapping, |
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kh_oid_map_t *reused_bitmaps, int show_progress); |
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void free_bitmap_index(struct bitmap_index *); |
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int bitmap_walk_contains(struct bitmap_index *, |
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struct bitmap *bitmap, const struct object_id *oid); |
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/* |
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* After a traversal has been performed by prepare_bitmap_walk(), this can be |
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* queried to see if a particular object was reachable from any of the |
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* objects flagged as UNINTERESTING. |
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*/ |
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int bitmap_has_oid_in_uninteresting(struct bitmap_index *, const struct object_id *oid); |
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off_t get_disk_usage_from_bitmap(struct bitmap_index *, struct rev_info *); |
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void bitmap_writer_show_progress(int show); |
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void bitmap_writer_set_checksum(const unsigned char *sha1); |
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void bitmap_writer_build_type_index(struct packing_data *to_pack, |
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struct pack_idx_entry **index, |
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uint32_t index_nr); |
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uint32_t *create_bitmap_mapping(struct bitmap_index *bitmap_git, |
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struct packing_data *mapping); |
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int rebuild_bitmap(const uint32_t *reposition, |
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struct ewah_bitmap *source, |
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struct bitmap *dest); |
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struct ewah_bitmap *bitmap_for_commit(struct bitmap_index *bitmap_git, |
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struct commit *commit); |
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void bitmap_writer_select_commits(struct commit **indexed_commits, |
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unsigned int indexed_commits_nr, int max_bitmaps); |
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int bitmap_writer_build(struct packing_data *to_pack); |
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void bitmap_writer_finish(struct pack_idx_entry **index, |
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uint32_t index_nr, |
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const char *filename, |
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uint16_t options); |
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char *midx_bitmap_filename(struct multi_pack_index *midx); |
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char *pack_bitmap_filename(struct packed_git *p); |
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int bitmap_is_midx(struct bitmap_index *bitmap_git); |
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const struct string_list *bitmap_preferred_tips(struct repository *r); |
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int bitmap_is_preferred_refname(struct repository *r, const char *refname); |
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int verify_bitmap_files(struct repository *r); |
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#endif
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