diff options
Diffstat (limited to 'object-store.h')
-rw-r--r-- | object-store.h | 80 |
1 files changed, 47 insertions, 33 deletions
diff --git a/object-store.h b/object-store.h index 67e66227d9..e16aa38cae 100644 --- a/object-store.h +++ b/object-store.h @@ -7,41 +7,34 @@ #include "sha1-array.h" #include "strbuf.h" -struct alternate_object_database { - struct alternate_object_database *next; - - /* see alt_scratch_buf() */ - struct strbuf scratch; - size_t base_len; +struct object_directory { + struct object_directory *next; /* - * Used to store the results of readdir(3) calls when searching - * for unique abbreviated hashes. This cache is never - * invalidated, thus it's racy and not necessarily accurate. - * That's fine for its purpose; don't use it for tasks requiring - * greater accuracy! + * Used to store the results of readdir(3) calls when we are OK + * sacrificing accuracy due to races for speed. That includes + * object existence with OBJECT_INFO_QUICK, as well as + * our search for unique abbreviated hashes. Don't use it for tasks + * requiring greater accuracy! + * + * Be sure to call odb_load_loose_cache() before using. */ char loose_objects_subdir_seen[256]; - struct oid_array loose_objects_cache; + struct oid_array loose_objects_cache[256]; /* * Path to the alternative object store. If this is a relative path, * it is relative to the current working directory. */ - char path[FLEX_ARRAY]; + char *path; }; + void prepare_alt_odb(struct repository *r); char *compute_alternate_path(const char *path, struct strbuf *err); -typedef int alt_odb_fn(struct alternate_object_database *, void *); +typedef int alt_odb_fn(struct object_directory *, void *); int foreach_alt_odb(alt_odb_fn, void*); /* - * Allocate a "struct alternate_object_database" but do _not_ actually - * add it to the list of alternates. - */ -struct alternate_object_database *alloc_alt_odb(const char *dir); - -/* * Add the directory to the on-disk alternates file; the new entry will also * take effect in the current process. */ @@ -55,12 +48,14 @@ void add_to_alternates_file(const char *dir); void add_to_alternates_memory(const char *dir); /* - * Returns a scratch strbuf pre-filled with the alternate object directory, - * including a trailing slash, which can be used to access paths in the - * alternate. Always use this over direct access to alt->scratch, as it - * cleans up any previous use of the scratch buffer. + * Populate and return the loose object cache array corresponding to the + * given object ID. */ -struct strbuf *alt_scratch_buf(struct alternate_object_database *alt); +struct oid_array *odb_loose_cache(struct object_directory *odb, + const struct object_id *oid); + +/* Empty the loose object cache for the specified object directory. */ +void odb_clear_loose_cache(struct object_directory *odb); struct packed_git { struct packed_git *next; @@ -88,19 +83,25 @@ struct packed_git { char pack_name[FLEX_ARRAY]; /* more */ }; +struct multi_pack_index; + struct raw_object_store { /* - * Path to the repository's object store. - * Cannot be NULL after initialization. + * Set of all object directories; the main directory is first (and + * cannot be NULL after initialization). Subsequent directories are + * alternates. */ - char *objectdir; + struct object_directory *odb; + struct object_directory **odb_tail; + int loaded_alternates; - /* Path to extra alternate object database if not NULL */ + /* + * A list of alternate object directories loaded from the environment; + * this should not generally need to be accessed directly, but will + * populate the "odb" list when prepare_alt_odb() is run. + */ char *alternate_db; - struct alternate_object_database *alt_odb_list; - struct alternate_object_database **alt_odb_tail; - /* * Objects that should be substituted by other objects * (see git-replace(1)). @@ -113,6 +114,13 @@ struct raw_object_store { /* * private data * + * should only be accessed directly by packfile.c and midx.c + */ + struct multi_pack_index *multi_pack_index; + + /* + * private data + * * should only be accessed directly by packfile.c */ @@ -121,6 +129,12 @@ struct raw_object_store { struct list_head packed_git_mru; /* + * A linked list containing all packfiles, starting with those + * contained in the multi_pack_index. + */ + struct packed_git *all_packs; + + /* * A fast, rough count of the number of objects in the repository. * These two fields are not meant for direct access. Use * approximate_object_count() instead. @@ -142,7 +156,7 @@ void raw_object_store_clear(struct raw_object_store *o); * Put in `buf` the name of the file in the local object database that * would be used to store a loose object with the specified sha1. */ -void sha1_file_name(struct repository *r, struct strbuf *buf, const unsigned char *sha1); +const char *loose_object_path(struct repository *r, struct strbuf *buf, const unsigned char *sha1); void *map_sha1_file(struct repository *r, const unsigned char *sha1, unsigned long *size); |