/usr/include/c_icap/cache.h is in libicapapi-dev 1:0.3.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | /*
* Copyright (C) 2004-2008 Christos Tsantilas
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*/
#ifndef __CACHE_H
#define __CACHE_H
#include "hash.h"
#include "proc_mutex.h"
#include "ci_threads.h"
#ifdef __cplusplus
extern "C"
{
#endif
struct ci_cache_entry {
unsigned int hash;
time_t time;
void *key;
void *val;
int val_size;
struct ci_cache_entry *qnext;
struct ci_cache_entry *hnext;
};
typedef struct common_mutex {
int isproc;
union {
ci_proc_mutex_t proc_mutex;
ci_thread_mutex_t thread_mutex;
} mtx;
} common_mutex_t;
typedef struct ci_cache{
struct ci_cache_entry *first_queue_entry;
struct ci_cache_entry *last_queue_entry;
struct ci_cache_entry **hash_table;
time_t ttl;
unsigned int cache_size;
unsigned int mem_size;
unsigned int max_key_size;
unsigned int max_object_size;
unsigned int hash_table_size;
unsigned int flags;
ci_type_ops_t *key_ops;
ci_mem_allocator_t *allocator;
common_mutex_t mtx;
void *(*copy_to)(void *val,int *val_size, ci_mem_allocator_t *allocator);
void *(*copy_from)(void *val,int val_size, ci_mem_allocator_t *allocator);
// void (*data_release)(void *val, ci_mem_allocator_t *allocator);
} ci_cache_t;
CI_DECLARE_FUNC(struct ci_cache *) ci_cache_build( unsigned int cache_size,
unsigned int max_key_size,
unsigned int max_object_size,
int ttl,
ci_type_ops_t *key_ops,
void *(copy_to_cache)(void *val, int *val_size, ci_mem_allocator_t *allocator),
void *(copy_from_cache)(void *val,int val_size, ci_mem_allocator_t *allocator)
);
CI_DECLARE_FUNC(void *) ci_cache_search(struct ci_cache *cache,void *key, void **val, ci_mem_allocator_t *allocator);
CI_DECLARE_FUNC(int) ci_cache_update(struct ci_cache *cache, void *key, void *val);
CI_DECLARE_FUNC(void) ci_cache_destroy(struct ci_cache *cache);
/*
Only for internal use only:
cb functions to store/retrieve vectors from cache....
*/
CI_DECLARE_FUNC(void *)ci_cache_store_vector_val(void *val, int *val_size, ci_mem_allocator_t *allocator);
CI_DECLARE_FUNC(void *)ci_cache_read_vector_val(void *val, int val_size, ci_mem_allocator_t *allocator);
#ifdef __cplusplus
}
#endif
#endif
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