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bb742ede3d
1. The license header is technically not valid if it doesn't have a copyright signature. 2. The COPYING file has been updated with the different licenses used in the project. 3. The full GPLv2 header in each file annoys me.
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/*
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* Copyright (C) 2009-2011 the libgit2 contributors
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_cache_h__
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#define INCLUDE_cache_h__
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#include "git2/common.h"
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#include "git2/oid.h"
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#include "git2/odb.h"
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#include "thread-utils.h"
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#define GIT_DEFAULT_CACHE_SIZE 128
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typedef void (*git_cached_obj_freeptr)(void *);
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typedef struct {
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git_oid oid;
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git_atomic refcount;
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} git_cached_obj;
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typedef struct {
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git_cached_obj *ptr;
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git_mutex lock;
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} cache_node;
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typedef struct {
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cache_node *nodes;
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unsigned int lru_count;
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size_t size_mask;
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git_cached_obj_freeptr free_obj;
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} git_cache;
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int git_cache_init(git_cache *cache, size_t size, git_cached_obj_freeptr free_ptr);
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void git_cache_free(git_cache *cache);
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void *git_cache_try_store(git_cache *cache, void *entry);
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void *git_cache_get(git_cache *cache, const git_oid *oid);
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GIT_INLINE(int) git_cached_obj_compare(git_cached_obj *obj, const git_oid *oid)
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{
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return git_oid_cmp(&obj->oid, oid);
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}
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GIT_INLINE(void) git_cached_obj_incref(git_cached_obj *obj)
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{
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git_atomic_inc(&obj->refcount);
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}
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GIT_INLINE(void) git_cached_obj_decref(git_cached_obj *obj, git_cached_obj_freeptr free_obj)
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{
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if (git_atomic_dec(&obj->refcount) == 0)
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free_obj(obj);
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}
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#endif
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