diff options
Diffstat (limited to 'midx.h')
| -rw-r--r-- | midx.h | 31 |
1 files changed, 30 insertions, 1 deletions
@@ -6,6 +6,26 @@ struct object_id; struct pack_entry; struct repository; +struct bitmapped_pack; + +#define MIDX_SIGNATURE 0x4d494458 /* "MIDX" */ +#define MIDX_VERSION 1 +#define MIDX_BYTE_FILE_VERSION 4 +#define MIDX_BYTE_HASH_VERSION 5 +#define MIDX_BYTE_NUM_CHUNKS 6 +#define MIDX_BYTE_NUM_PACKS 8 +#define MIDX_HEADER_SIZE 12 + +#define MIDX_CHUNK_ALIGNMENT 4 +#define MIDX_CHUNKID_PACKNAMES 0x504e414d /* "PNAM" */ +#define MIDX_CHUNKID_BITMAPPEDPACKS 0x42544d50 /* "BTMP" */ +#define MIDX_CHUNKID_OIDFANOUT 0x4f494446 /* "OIDF" */ +#define MIDX_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */ +#define MIDX_CHUNKID_OBJECTOFFSETS 0x4f4f4646 /* "OOFF" */ +#define MIDX_CHUNKID_LARGEOFFSETS 0x4c4f4646 /* "LOFF" */ +#define MIDX_CHUNKID_REVINDEX 0x52494458 /* "RIDX" */ +#define MIDX_CHUNK_OFFSET_WIDTH (2 * sizeof(uint32_t)) +#define MIDX_LARGE_OFFSET_NEEDED 0x80000000 #define GIT_TEST_MULTI_PACK_INDEX "GIT_TEST_MULTI_PACK_INDEX" #define GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP \ @@ -27,11 +47,14 @@ struct multi_pack_index { unsigned char num_chunks; uint32_t num_packs; uint32_t num_objects; + int preferred_pack_idx; int local; const unsigned char *chunk_pack_names; size_t chunk_pack_names_len; + const uint32_t *chunk_bitmapped_packs; + size_t chunk_bitmapped_packs_len; const uint32_t *chunk_oid_fanout; const unsigned char *chunk_oid_lookup; const unsigned char *chunk_object_offsets; @@ -57,6 +80,8 @@ void get_midx_rev_filename(struct strbuf *out, struct multi_pack_index *m); struct multi_pack_index *load_multi_pack_index(const char *object_dir, int local); int prepare_midx_pack(struct repository *r, struct multi_pack_index *m, uint32_t pack_int_id); +int nth_bitmapped_pack(struct repository *r, struct multi_pack_index *m, + struct bitmapped_pack *bp, uint32_t pack_int_id); int bsearch_midx(const struct object_id *oid, struct multi_pack_index *m, uint32_t *result); off_t nth_midxed_offset(struct multi_pack_index *m, uint32_t pos); uint32_t nth_midxed_pack_int_id(struct multi_pack_index *m, uint32_t pos); @@ -64,7 +89,11 @@ struct object_id *nth_midxed_object_oid(struct object_id *oid, struct multi_pack_index *m, uint32_t n); int fill_midx_entry(struct repository *r, const struct object_id *oid, struct pack_entry *e, struct multi_pack_index *m); -int midx_contains_pack(struct multi_pack_index *m, const char *idx_or_pack_name); +int midx_contains_pack(struct multi_pack_index *m, + const char *idx_or_pack_name); +int midx_locate_pack(struct multi_pack_index *m, const char *idx_or_pack_name, + uint32_t *pos); +int midx_preferred_pack(struct multi_pack_index *m, uint32_t *pack_int_id); int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, int local); /* |