1 718b3ab0 2018-03-17 stsp /*
 2 718b3ab0 2018-03-17 stsp  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
 3 718b3ab0 2018-03-17 stsp  *
 4 718b3ab0 2018-03-17 stsp  * Permission to use, copy, modify, and distribute this software for any
 5 718b3ab0 2018-03-17 stsp  * purpose with or without fee is hereby granted, provided that the above
 6 718b3ab0 2018-03-17 stsp  * copyright notice and this permission notice appear in all copies.
 7 718b3ab0 2018-03-17 stsp  *
 8 718b3ab0 2018-03-17 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 718b3ab0 2018-03-17 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 718b3ab0 2018-03-17 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 718b3ab0 2018-03-17 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 718b3ab0 2018-03-17 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 718b3ab0 2018-03-17 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 718b3ab0 2018-03-17 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 718b3ab0 2018-03-17 stsp  */
16 718b3ab0 2018-03-17 stsp 
17 718b3ab0 2018-03-17 stsp #define GOT_PACKIDX_CACHE_SIZE	64
18 718b3ab0 2018-03-17 stsp #define GOT_PACK_CACHE_SIZE	GOT_PACKIDX_CACHE_SIZE
19 718b3ab0 2018-03-17 stsp 
20 7bb0daa1 2018-06-21 stsp #define GOT_OBJECT_CACHE_SIZE	8192
21 7bb0daa1 2018-06-21 stsp 
22 f6be5c30 2018-06-22 stsp enum got_object_chache_type {
23 f6be5c30 2018-06-22 stsp 	GOT_OBJECT_CACHE_TYPE_OBJ,
24 1943de01 2018-06-22 stsp 	GOT_OBJECT_CACHE_TYPE_TREE,
25 1943de01 2018-06-22 stsp 	GOT_OBJECT_CACHE_TYPE_COMMIT,
26 f6be5c30 2018-06-22 stsp };
27 f6be5c30 2018-06-22 stsp 
28 54f20211 2018-06-22 stsp struct got_object_cache_entry {
29 7bb0daa1 2018-06-21 stsp 	struct got_object_id id;
30 f6be5c30 2018-06-22 stsp 	union {
31 f6be5c30 2018-06-22 stsp 		struct got_object *obj;
32 f6be5c30 2018-06-22 stsp 		struct got_tree_object *tree;
33 1943de01 2018-06-22 stsp 		struct got_commit_object *commit;
34 f6be5c30 2018-06-22 stsp 	} data;
35 7bb0daa1 2018-06-21 stsp };
36 7bb0daa1 2018-06-21 stsp 
37 54f20211 2018-06-22 stsp struct got_object_cache {
38 f6be5c30 2018-06-22 stsp 	enum got_object_chache_type type;
39 54f20211 2018-06-22 stsp 	struct got_object_idset *set;
40 54f20211 2018-06-22 stsp 	int cache_hit;
41 54f20211 2018-06-22 stsp 	int cache_miss;
42 54f20211 2018-06-22 stsp };
43 54f20211 2018-06-22 stsp 
44 718b3ab0 2018-03-17 stsp struct got_repository {
45 718b3ab0 2018-03-17 stsp 	char *path;
46 718b3ab0 2018-03-17 stsp 	char *path_git_dir;
47 718b3ab0 2018-03-17 stsp 
48 718b3ab0 2018-03-17 stsp 	/* The pack index cache speeds up search for packed objects. */
49 6fd11751 2018-06-04 stsp 	struct got_packidx *packidx_cache[GOT_PACKIDX_CACHE_SIZE];
50 718b3ab0 2018-03-17 stsp 
51 6c6d3ed3 2018-04-02 stsp 	/* Open file handles for pack files. */
52 718b3ab0 2018-03-17 stsp 	struct got_pack packs[GOT_PACK_CACHE_SIZE];
53 7bb0daa1 2018-06-21 stsp 
54 f6be5c30 2018-06-22 stsp 	/* Caches for opened objects. */
55 54f20211 2018-06-22 stsp 	struct got_object_cache objcache;
56 f6be5c30 2018-06-22 stsp 	struct got_object_cache treecache;
57 1943de01 2018-06-22 stsp 	struct got_object_cache commitcache;
58 718b3ab0 2018-03-17 stsp };
59 7bb0daa1 2018-06-21 stsp 
60 f6be5c30 2018-06-22 stsp const struct got_error*got_repo_cache_object(struct got_repository *,
61 f6be5c30 2018-06-22 stsp     struct got_object_id *, struct got_object *);
62 7bb0daa1 2018-06-21 stsp struct got_object *got_repo_get_cached_object(struct got_repository *,
63 7bb0daa1 2018-06-21 stsp     struct got_object_id *);
64 f6be5c30 2018-06-22 stsp const struct got_error*got_repo_cache_tree(struct got_repository *,
65 f6be5c30 2018-06-22 stsp     struct got_object_id *, struct got_tree_object *);
66 f6be5c30 2018-06-22 stsp struct got_tree_object *got_repo_get_cached_tree(struct got_repository *,
67 f6be5c30 2018-06-22 stsp     struct got_object_id *);
68 1943de01 2018-06-22 stsp const struct got_error*got_repo_cache_commit(struct got_repository *,
69 1943de01 2018-06-22 stsp     struct got_object_id *, struct got_commit_object *);
70 1943de01 2018-06-22 stsp struct got_commit_object *got_repo_get_cached_commit(struct got_repository *,
71 1943de01 2018-06-22 stsp     struct got_object_id *);