diff options
Diffstat (limited to 'packfile.h')
| -rw-r--r-- | packfile.h | 77 |
1 files changed, 53 insertions, 24 deletions
diff --git a/packfile.h b/packfile.h index a7fca598d6..6c4037605d 100644 --- a/packfile.h +++ b/packfile.h @@ -1,8 +1,13 @@ #ifndef PACKFILE_H #define PACKFILE_H +#include "cache.h" #include "oidset.h" +/* in object-store.h */ +struct packed_git; +struct object_info; + /* * Generate the filename to be used for a pack file with checksum "sha1" and * extension "ext". The result is written into the strbuf "buf", overwriting @@ -28,15 +33,25 @@ extern char *sha1_pack_index_name(const unsigned char *sha1); extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path); +typedef void each_file_in_pack_dir_fn(const char *full_path, size_t full_path_len, + const char *file_pach, void *data); +void for_each_file_in_pack_dir(const char *objdir, + each_file_in_pack_dir_fn fn, + void *data); + /* A hook to report invalid files in pack directory */ #define PACKDIR_FILE_PACK 1 #define PACKDIR_FILE_IDX 2 #define PACKDIR_FILE_GARBAGE 4 extern void (*report_garbage)(unsigned seen_bits, const char *path); -extern void prepare_packed_git(void); -extern void reprepare_packed_git(void); -extern void install_packed_git(struct packed_git *pack); +extern void reprepare_packed_git(struct repository *r); +extern void install_packed_git(struct repository *r, struct packed_git *pack); + +struct packed_git *get_packed_git(struct repository *r); +struct list_head *get_packed_git_mru(struct repository *r); +struct multi_pack_index *get_multi_pack_index(struct repository *r); +struct packed_git *get_all_packs(struct repository *r); /* * Give a rough count of objects in the repository. This sacrifices accuracy @@ -61,9 +76,12 @@ extern int open_pack_index(struct packed_git *); */ extern void close_pack_index(struct packed_git *); +extern uint32_t get_pack_fanout(struct packed_git *p, uint32_t value); + extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *); extern void close_pack_windows(struct packed_git *); -extern void close_all_packs(void); +extern void close_pack(struct packed_git *); +extern void close_all_packs(struct raw_object_store *o); extern void unuse_pack(struct pack_window **); extern void clear_delta_base_cache(void); extern struct packed_git *add_packed_git(const char *path, size_t path_len, int local); @@ -79,6 +97,14 @@ extern struct packed_git *add_packed_git(const char *path, size_t path_len, int extern void check_pack_index_ptr(const struct packed_git *p, const void *ptr); /* + * Perform binary search on a pack-index for a given oid. Packfile is expected to + * have a valid pack-index. + * + * See 'bsearch_hash' for more information. + */ +int bsearch_pack(const struct object_id *oid, const struct packed_git *p, uint32_t *result); + +/* * Return the SHA-1 of the nth object within the specified packfile. * Open the index if it is not already open. The return value points * at the SHA-1 within the mmapped index. Return NULL if there is an @@ -105,7 +131,7 @@ extern off_t nth_packed_object_offset(const struct packed_git *, uint32_t n); extern off_t find_pack_entry_one(const unsigned char *sha1, struct packed_git *); extern int is_pack_valid(struct packed_git *); -extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, unsigned long *); +extern void *unpack_entry(struct repository *r, struct packed_git *, off_t, enum object_type *, unsigned long *); extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsigned long len, enum object_type *type, unsigned long *sizep); extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t); extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *); @@ -115,32 +141,22 @@ extern void release_pack_memory(size_t); /* global flag to enable extra checks when accessing packed objects */ extern int do_check_packed_object_crc; -extern int packed_object_info(struct packed_git *pack, off_t offset, struct object_info *); +extern int packed_object_info(struct repository *r, + struct packed_git *pack, + off_t offset, struct object_info *); extern void mark_bad_packed_object(struct packed_git *p, const unsigned char *sha1); extern const struct packed_git *has_packed_and_bad(const unsigned char *sha1); -extern int find_pack_entry(const unsigned char *sha1, struct pack_entry *e); - -extern int has_sha1_pack(const unsigned char *sha1); - -extern int has_pack_index(const unsigned char *sha1); - /* - * Only iterate over packs obtained from the promisor remote. + * Iff a pack file in the given repository contains the object named by sha1, + * return true and store its location to e. */ -#define FOR_EACH_OBJECT_PROMISOR_ONLY 2 +extern int find_pack_entry(struct repository *r, const struct object_id *oid, struct pack_entry *e); -/* - * Iterate over packed objects in both the local - * repository and any alternates repositories (unless the - * FOR_EACH_OBJECT_LOCAL_ONLY flag, defined in cache.h, is set). - */ -typedef int each_packed_object_fn(const struct object_id *oid, - struct packed_git *pack, - uint32_t pos, - void *data); -extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags); +extern int has_object_pack(const struct object_id *oid); + +extern int has_pack_index(const unsigned char *sha1); /* * Return 1 if an object in a promisor packfile is or refers to the given @@ -148,4 +164,17 @@ extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags) */ extern int is_promisor_object(const struct object_id *oid); +/* + * Expose a function for fuzz testing. + * + * load_idx() parses a block of memory as a packfile index and puts the results + * into a struct packed_git. + * + * This function should not be used directly. It is exposed here only so that we + * have a convenient entry-point for fuzz testing. For real uses, you should + * probably use open_pack_index() or parse_pack_index() instead. + */ +extern int load_idx(const char *path, const unsigned int hashsz, void *idx_map, + size_t idx_size, struct packed_git *p); + #endif |