From c8bae7493d2f2910b57f13ded012e86bdcfb0532 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:47:53 +0200 Subject: Adding upstream version 1:2.39.2. Signed-off-by: Daniel Baumann --- midx.h | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 midx.h (limited to 'midx.h') diff --git a/midx.h b/midx.h new file mode 100644 index 0000000..5578cd7 --- /dev/null +++ b/midx.h @@ -0,0 +1,88 @@ +#ifndef MIDX_H +#define MIDX_H + +#include "repository.h" +#include "string-list.h" + +struct object_id; +struct pack_entry; +struct repository; + +#define GIT_TEST_MULTI_PACK_INDEX "GIT_TEST_MULTI_PACK_INDEX" +#define GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP \ + "GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP" + +struct multi_pack_index { + struct multi_pack_index *next; + + const unsigned char *data; + size_t data_len; + + const uint32_t *revindex_data; + const uint32_t *revindex_map; + size_t revindex_len; + + uint32_t signature; + unsigned char version; + unsigned char hash_len; + unsigned char num_chunks; + uint32_t num_packs; + uint32_t num_objects; + + int local; + + const unsigned char *chunk_pack_names; + const uint32_t *chunk_oid_fanout; + const unsigned char *chunk_oid_lookup; + const unsigned char *chunk_object_offsets; + const unsigned char *chunk_large_offsets; + const unsigned char *chunk_revindex; + + const char **pack_names; + struct packed_git **packs; + char object_dir[FLEX_ARRAY]; +}; + +#define MIDX_PROGRESS (1 << 0) +#define MIDX_WRITE_REV_INDEX (1 << 1) +#define MIDX_WRITE_BITMAP (1 << 2) +#define MIDX_WRITE_BITMAP_HASH_CACHE (1 << 3) +#define MIDX_WRITE_BITMAP_LOOKUP_TABLE (1 << 4) + +const unsigned char *get_midx_checksum(struct multi_pack_index *m); +void get_midx_filename(struct strbuf *out, const char *object_dir); +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 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); +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 prepare_multi_pack_index_one(struct repository *r, const char *object_dir, int local); + +/* + * Variant of write_midx_file which writes a MIDX containing only the packs + * specified in packs_to_include. + */ +int write_midx_file(const char *object_dir, + const char *preferred_pack_name, + const char *refs_snapshot, + unsigned flags); +int write_midx_file_only(const char *object_dir, + struct string_list *packs_to_include, + const char *preferred_pack_name, + const char *refs_snapshot, + unsigned flags); +void clear_midx_file(struct repository *r); +int verify_midx_file(struct repository *r, const char *object_dir, unsigned flags); +int expire_midx_packs(struct repository *r, const char *object_dir, unsigned flags); +int midx_repack(struct repository *r, const char *object_dir, size_t batch_size, unsigned flags); + +void close_midx(struct multi_pack_index *m); + +#endif -- cgit v1.2.3