clone: initialize atexit cleanup handler earlier
[git.git] / pack-bitmap.h
blob8b7f4e9f0df2d50ffab1c0535d678c69fd7d6e94
1 #ifndef PACK_BITMAP_H
2 #define PACK_BITMAP_H
4 #include "ewah/ewok.h"
5 #include "khash.h"
6 #include "pack-objects.h"
8 struct bitmap_disk_entry {
9 uint32_t object_pos;
10 uint8_t xor_offset;
11 uint8_t flags;
12 } __attribute__((packed));
14 struct bitmap_disk_header {
15 char magic[4];
16 uint16_t version;
17 uint16_t options;
18 uint32_t entry_count;
19 unsigned char checksum[20];
22 static const char BITMAP_IDX_SIGNATURE[] = {'B', 'I', 'T', 'M'};
24 #define NEEDS_BITMAP (1u<<22)
26 enum pack_bitmap_opts {
27 BITMAP_OPT_FULL_DAG = 1,
28 BITMAP_OPT_HASH_CACHE = 4,
31 enum pack_bitmap_flags {
32 BITMAP_FLAG_REUSE = 0x1
35 typedef int (*show_reachable_fn)(
36 const unsigned char *sha1,
37 enum object_type type,
38 int flags,
39 uint32_t hash,
40 struct packed_git *found_pack,
41 off_t found_offset);
43 int prepare_bitmap_git(void);
44 void count_bitmap_commit_list(uint32_t *commits, uint32_t *trees, uint32_t *blobs, uint32_t *tags);
45 void traverse_bitmap_commit_list(show_reachable_fn show_reachable);
46 void test_bitmap_walk(struct rev_info *revs);
47 char *pack_bitmap_filename(struct packed_git *p);
48 int prepare_bitmap_walk(struct rev_info *revs);
49 int reuse_partial_packfile_from_bitmap(struct packed_git **packfile, uint32_t *entries, off_t *up_to);
50 int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bitmaps, int show_progress);
52 void bitmap_writer_show_progress(int show);
53 void bitmap_writer_set_checksum(unsigned char *sha1);
54 void bitmap_writer_build_type_index(struct pack_idx_entry **index, uint32_t index_nr);
55 void bitmap_writer_reuse_bitmaps(struct packing_data *to_pack);
56 void bitmap_writer_select_commits(struct commit **indexed_commits,
57 unsigned int indexed_commits_nr, int max_bitmaps);
58 void bitmap_writer_build(struct packing_data *to_pack);
59 void bitmap_writer_finish(struct pack_idx_entry **index,
60 uint32_t index_nr,
61 const char *filename,
62 uint16_t options);
64 #endif