src/lib-dict/dict-private.h

	dict-private.h revision d694b6009574ee6e3cfaee3834cbdbcd431affb0
#ifndef DICT_PRIVATE_H
#define DICT_PRIVATE_H

#include "dict.h"

struct dict_vfuncs {
    int (*init)(struct dict *dict_driver, const char *uri,
            const struct dict_settings *set,
            struct dict **dict_r, const char **error_r);
    void (*deinit)(struct dict *dict);
    int (*wait)(struct dict *dict);

    int (*lookup)(struct dict *dict, pool_t pool,
              const char *key, const char **value_r);

    struct dict_iterate_context *
        (*iterate_init)(struct dict *dict, const char *const *paths,
                enum dict_iterate_flags flags);
    bool (*iterate)(struct dict_iterate_context *ctx,
            const char **key_r, const char **value_r);
    int (*iterate_deinit)(struct dict_iterate_context *ctx);

    struct dict_transaction_context *(*transaction_init)(struct dict *dict);
    int (*transaction_commit)(struct dict_transaction_context *ctx,
                  bool async,
                  dict_transaction_commit_callback_t *callback,
                  void *context);
    void (*transaction_rollback)(struct dict_transaction_context *ctx);

    void (*set)(struct dict_transaction_context *ctx,
            const char *key, const char *value);
    void (*unset)(struct dict_transaction_context *ctx,
              const char *key);
    void (*append)(struct dict_transaction_context *ctx,
               const char *key, const char *value);
    void (*atomic_inc)(struct dict_transaction_context *ctx,
               const char *key, long long diff);

    void (*lookup_async)(struct dict *dict, const char *key,
                 dict_lookup_callback_t *callback, void *context);
};

struct dict {
    const char *name;

    struct dict_vfuncs v;
};

struct dict_iterate_context {
    struct dict *dict;

    dict_iterate_callback_t *async_callback;
    void *async_context;

    unsigned int has_more:1;
};

struct dict_transaction_context {
    struct dict *dict;

    unsigned int changed:1;
};

extern struct dict dict_driver_client;
extern struct dict dict_driver_file;
extern struct dict dict_driver_fs;
extern struct dict dict_driver_memcached;
extern struct dict dict_driver_memcached_ascii;
extern struct dict dict_driver_redis;
extern struct dict dict_driver_cdb;

#endif