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| #ifndef OBJECT_H | |
| #define OBJECT_H | |
| #include "cache.h" | |
| struct buffer_slab; | |
| struct parsed_object_pool { | |
| struct object **obj_hash; | |
| int nr_objs, obj_hash_size; | |
| /* TODO: migrate alloc_states to mem-pool? */ | |
| struct alloc_state *blob_state; | |
| struct alloc_state *tree_state; | |
| struct alloc_state *commit_state; | |
| struct alloc_state *tag_state; | |
| struct alloc_state *object_state; | |
| /* parent substitutions from .git/info/grafts and .git/shallow */ | |
| struct commit_graft **grafts; | |
| int grafts_alloc, grafts_nr; | |
| int is_shallow; | |
| struct stat_validity *shallow_stat; | |
| char *alternate_shallow_file; | |
| int commit_graft_prepared; | |
| int substituted_parent; | |
| struct buffer_slab *buffer_slab; | |
| }; | |
| struct parsed_object_pool *parsed_object_pool_new(void); | |
| void parsed_object_pool_clear(struct parsed_object_pool *o); | |
| struct object_list { | |
| struct object *item; | |
| struct object_list *next; | |
| }; | |
| struct object_array { | |
| unsigned int nr; | |
| unsigned int alloc; | |
| struct object_array_entry { | |
| struct object *item; | |
| /* | |
| * name or NULL. If non-NULL, the memory pointed to | |
| * is owned by this object *except* if it points at | |
| * object_array_slopbuf, which is a static copy of the | |
| * empty string. | |
| */ | |
| char *name; | |
| char *path; | |
| unsigned mode; | |
| } *objects; | |
| }; | |
| #define OBJECT_ARRAY_INIT { 0, 0, NULL } | |
| /* | |
| * object flag allocation: | |
| * revision.h: 0---------10 15 23------26 | |
| * fetch-pack.c: 01 67 | |
| * negotiator/default.c: 2--5 | |
| * walker.c: 0-2 | |
| * upload-pack.c: 4 11-----14 16-----19 | |
| * builtin/blame.c: 12-13 | |
| * bisect.c: 16 | |
| * bundle.c: 16 | |
| * http-push.c: 11-----14 | |
| * commit-graph.c: 15 | |
| * commit-reach.c: 16-----19 | |
| * sha1-name.c: 20 | |
| * list-objects-filter.c: 21 | |
| * builtin/fsck.c: 0--3 | |
| * builtin/gc.c: 0 | |
| * builtin/index-pack.c: 2021 | |
| * builtin/pack-objects.c: 20 | |
| * builtin/reflog.c: 10--12 | |
| * builtin/show-branch.c: 0-------------------------------------------26 | |
| * builtin/unpack-objects.c: 2021 | |
| */ | |
| #define FLAG_BITS 28 | |
| /* | |
| * The object type is stored in 3 bits. | |
| */ | |
| struct object { | |
| unsigned parsed : 1; | |
| unsigned type : TYPE_BITS; | |
| unsigned flags : FLAG_BITS; | |
| struct object_id oid; | |
| }; | |
| const char *type_name(unsigned int type); | |
| int type_from_string_gently(const char *str, ssize_t, int gentle); | |
| #define type_from_string(str) type_from_string_gently(str, -1, 0) | |
| /* | |
| * Return the current number of buckets in the object hashmap. | |
| */ | |
| unsigned int get_max_object_index(void); | |
| /* | |
| * Return the object from the specified bucket in the object hashmap. | |
| */ | |
| struct object *get_indexed_object(unsigned int); | |
| /* | |
| * This can be used to see if we have heard of the object before, but | |
| * it can return "yes we have, and here is a half-initialised object" | |
| * for an object that we haven't loaded/parsed yet. | |
| * | |
| * When parsing a commit to create an in-core commit object, its | |
| * parents list holds commit objects that represent its parents, but | |
| * they are expected to be lazily initialized and do not know what | |
| * their trees or parents are yet. When this function returns such a | |
| * half-initialised objects, the caller is expected to initialize them | |
| * by calling parse_object() on them. | |
| */ | |
| struct object *lookup_object(struct repository *r, const struct object_id *oid); | |
| void *create_object(struct repository *r, const struct object_id *oid, void *obj); | |
| void *object_as_type(struct object *obj, enum object_type type, int quiet); | |
| /* | |
| * Returns the object, having parsed it to find out what it is. | |
| * | |
| * Returns NULL if the object is missing or corrupt. | |
| */ | |
| struct object *parse_object(struct repository *r, const struct object_id *oid); | |
| /* | |
| * Like parse_object, but will die() instead of returning NULL. If the | |
| * "name" parameter is not NULL, it is included in the error message | |
| * (otherwise, the hex object ID is given). | |
| */ | |
| struct object *parse_object_or_die(const struct object_id *oid, const char *name); | |
| /* Given the result of read_sha1_file(), returns the object after | |
| * parsing it. eaten_p indicates if the object has a borrowed copy | |
| * of buffer and the caller should not free() it. | |
| */ | |
| struct object *parse_object_buffer(struct repository *r, const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p); | |
| /* | |
| * Allocate and return an object struct, even if you do not know the type of | |
| * the object. The returned object may have its "type" field set to a real type | |
| * (if somebody previously called lookup_blob(), etc), or it may be set to | |
| * OBJ_NONE. In the latter case, subsequent calls to lookup_blob(), etc, will | |
| * set the type field as appropriate. | |
| * | |
| * Use this when you do not know the expected type of an object and want to | |
| * avoid parsing it for efficiency reasons. Try to avoid it otherwise; it | |
| * may allocate excess memory, since the returned object must be as large as | |
| * the maximum struct of any type. | |
| */ | |
| struct object *lookup_unknown_object(struct repository *r, const struct object_id *oid); | |
| /* | |
| * Dispatch to the appropriate lookup_blob(), lookup_commit(), etc, based on | |
| * "type". | |
| */ | |
| struct object *lookup_object_by_type(struct repository *r, const struct object_id *oid, | |
| enum object_type type); | |
| struct object_list *object_list_insert(struct object *item, | |
| struct object_list **list_p); | |
| int object_list_contains(struct object_list *list, struct object *obj); | |
| void object_list_free(struct object_list **list); | |
| /* Object array handling .. */ | |
| void add_object_array(struct object *obj, const char *name, struct object_array *array); | |
| void add_object_array_with_path(struct object *obj, const char *name, struct object_array *array, unsigned mode, const char *path); | |
| /* | |
| * Returns NULL if the array is empty. Otherwise, returns the last object | |
| * after removing its entry from the array. Other resources associated | |
| * with that object are left in an unspecified state and should not be | |
| * examined. | |
| */ | |
| struct object *object_array_pop(struct object_array *array); | |
| typedef int (*object_array_each_func_t)(struct object_array_entry *, void *); | |
| /* | |
| * Apply want to each entry in array, retaining only the entries for | |
| * which the function returns true. Preserve the order of the entries | |
| * that are retained. | |
| */ | |
| void object_array_filter(struct object_array *array, | |
| object_array_each_func_t want, void *cb_data); | |
| /* | |
| * Remove from array all but the first entry with a given name. | |
| * Warning: this function uses an O(N^2) algorithm. | |
| */ | |
| void object_array_remove_duplicates(struct object_array *array); | |
| /* | |
| * Remove any objects from the array, freeing all used memory; afterwards | |
| * the array is ready to store more objects with add_object_array(). | |
| */ | |
| void object_array_clear(struct object_array *array); | |
| void clear_object_flags(unsigned flags); | |
| /* | |
| * Clear the specified object flags from all in-core commit objects from | |
| * the specified repository. | |
| */ | |
| void repo_clear_commit_marks(struct repository *r, unsigned int flags); | |
| #endif /* OBJECT_H */ |