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Max Lv
2013-08-02 08:18:48 +08:00
parent b60097d5b3
commit a9ae518968
5 changed files with 42 additions and 29 deletions
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src/cache.h
+25 -5
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@@ -6,12 +6,32 @@
#ifndef _CACHE_
#define _CACHE_
struct client_cache;
#define KEY_MAX_LENGTH 32
extern int client_cache_create(struct foo_cache **dst, const size_t capacity,
/**
* A cache entry
*/
struct cache_entry {
char *key; /**<The key */
void *data; /**<Payload */
UT_hash_handle hh; /**<Hash Handle for uthash */
};
/**
* A cache object
*/
struct cache {
size_t max_entries; /**<Amount of entries this cache object can hold */
pthread_rwlock_t cache_lock; /**<A lock for concurrent access */
struct cache_entry *entries; /**<Head pointer for uthash */
void (*free_cb) (void *element);/**<Callback function to free cache entries */
};
extern int cache_create(struct cache **dst, const size_t capacity,
void (*free_cb) (void *element));
extern int client_cache_delete(struct foo_cache *cache, int keep_data);
extern int client_cache_lookup(struct foo_cache *cache, char *key, void *result);
extern int client_cache_insert(struct foo_cache *cache, char *key, void *data);
extern int cache_delete(struct cache *cache, int keep_data);
extern int cache_lookup(struct cache *cache, char *key, void *result);
extern int cache_insert(struct cache *cache, char *key, void *data);
#endif