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/*
* Describes common methods in accessing statistics files and caching them in memory
*/
#ifndef RSPAMD_STATFILE_H
#define RSPAMD_STATFILE_H
#include "config.h"
#include <sys/types.h>
#include <glib.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#include "mem_pool.h"
#define CHAIN_LENGTH 128
struct stat_file_header {
u_char magic[3];
u_char version[2];
u_char padding[3];
uint64_t create_time;
} __attribute__((__packed__));
struct stat_file_block {
uint32_t hash1;
uint32_t hash2;
uint32_t value; /* In fact this is float */
uint32_t last_access;
};
struct stat_file {
struct stat_file_header header;
struct stat_file_block blocks[1];
};
typedef struct stat_file_s {
char *filename;
int fd;
void *map;
time_t open_time;
time_t access_time;
size_t len;
/* Length is in blocks */
size_t blocks;
gint *lock;
} stat_file_t;
typedef struct statfile_pool_s {
GHashTable *files;
int opened;
size_t max;
size_t occupied;
memory_pool_t *pool;
} statfile_pool_t;
statfile_pool_t* statfile_pool_new (size_t max_size);
int statfile_pool_open (statfile_pool_t *pool, char *filename);
int statfile_pool_create (statfile_pool_t *pool, char *filename, size_t len);
int statfile_pool_close (statfile_pool_t *pool, char *filename);
void statfile_pool_delete (statfile_pool_t *pool);
void statfile_pool_lock_file (statfile_pool_t *pool, char *filename);
void statfile_pool_unlock_file (statfile_pool_t *pool, char *filename);
uint32_t statfile_pool_get_block (statfile_pool_t *pool, char *filename, uint32_t h1, uint32_t h2, time_t now);
void statfile_pool_set_block (statfile_pool_t *pool, char *filename, uint32_t h1, uint32_t h2, time_t now, uint32_t value);
int statfile_pool_is_open (statfile_pool_t *pool, char *filename);
#endif
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