/*
* Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define GOT_PACKIDX_CACHE_SIZE 64
#define GOT_PACK_CACHE_SIZE GOT_PACKIDX_CACHE_SIZE
#define GOT_OBJECT_CACHE_SIZE_OBJ 1024
#define GOT_OBJECT_CACHE_SIZE_TREE 128
#define GOT_OBJECT_CACHE_SIZE_COMMIT 512
enum got_object_chache_type {
GOT_OBJECT_CACHE_TYPE_OBJ,
GOT_OBJECT_CACHE_TYPE_TREE,
GOT_OBJECT_CACHE_TYPE_COMMIT,
};
struct got_object_cache_entry {
struct got_object_id id;
union {
struct got_object *obj;
struct got_tree_object *tree;
struct got_commit_object *commit;
} data;
};
struct got_object_cache {
enum got_object_chache_type type;
struct got_object_idset *set;
size_t size;
int cache_hit;
int cache_miss;
};
struct got_repository {
char *path;
char *path_git_dir;
/* The pack index cache speeds up search for packed objects. */
struct got_packidx *packidx_cache[GOT_PACKIDX_CACHE_SIZE];
/* Open file handles for pack files. */
struct got_pack packs[GOT_PACK_CACHE_SIZE];
/* Caches for opened objects. */
struct got_object_cache objcache;
struct got_object_cache treecache;
struct got_object_cache commitcache;
};
const struct got_error*got_repo_cache_object(struct got_repository *,
struct got_object_id *, struct got_object *);
struct got_object *got_repo_get_cached_object(struct got_repository *,
struct got_object_id *);
const struct got_error*got_repo_cache_tree(struct got_repository *,
struct got_object_id *, struct got_tree_object *);
struct got_tree_object *got_repo_get_cached_tree(struct got_repository *,
struct got_object_id *);
const struct got_error*got_repo_cache_commit(struct got_repository *,
struct got_object_id *, struct got_commit_object *);
struct got_commit_object *got_repo_get_cached_commit(struct got_repository *,
struct got_object_id *);
