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/**
* Persistent storage in /var/run/dnssec-trigger/ directory.
*/
#if !defined STORE_H && defined FWD_ZONES_SUPPORT
#define STORE_H
#include "string_list.h"
/* Directory used for storage of all files available through
* this module. */
#define STORE_BASE_DIR "/var/run/dnssec-trigger"
/* Concatenate file name with the base directory. */
#define STORE_PATH(NAME) (STORE_BASE_DIR "/" NAME)
/* Concatenate file name with the base directory and append ".tmp"
* to the path. As the name suggests this file will be stored
* temporarily and eventually it will replace the normal file. */
#define STORE_PATH_TMP(NAME) (STORE_BASE_DIR "/" NAME ".tmp")
struct store {
const char *dir;
const char *path;
const char *path_tmp;
struct string_list cache;
};
/**
* Create the store structure from directory name and absolute path of the file used for
* persistent storage. The last argument is an absolute path of the file with tmp suffix.
*/
struct store store_init(const char *dir, const char *full_path, const char *full_path_tmp);
/**
* Write the cache back to disk into file specified in the 'path' member
*/
int store_commit(const struct store *self);
/**
* Destroy cache
*/
void store_destroy(struct store *self);
/*
* Remove a string from the cache
*/
void store_remove(struct store *self, char *string, size_t len);
/*
* Push a string into the cache
*/
void store_add(struct store *self, char *string, size_t len);
/*
* Return true if the cache contains the string
*/
int store_contains(struct store *self, char *string, size_t len);
/**
* Macro that wraps up the init function in order to reduce typing.
*/
#define STORE_INIT(NAME) store_init((STORE_BASE_DIR),(STORE_PATH(NAME)),(STORE_PATH_TMP(NAME)))
#endif /* STORE_H */
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