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/** @file This file contains common exportable types and routines used by all modules */
enum loglevel {
debug = 0,
info = 1,
notice = 2,
warn = 3,
error = 4,
fatal = 5,
};
/**
* Opaque module handler, contains module internal structs
*/
typedef struct _config cfg_t;
/**
* @brief Create instance of module
* @param init Module-specific init string
* @returns Opaque module handler or NULL on failure
*/
extern cfg_t *create(const char *init);
/**
* @brief Configure module instance
* @param cfg Module handler
* @param key Parameter name
* @param value Parameter value
* @returns true on success, false on error
*/
extern bool config(cfg_t *cfg, const char *key, const char *value);
/**
* @brief Get internal module state as set of flags (see mod.h)
* @param cfg Module handler
* @returns <0 on error
*/
extern int state(cfg_t *cfg);
/**
* @brief Sets the log callback
* @param cfg Module handler
* @param cb Logging callback
* @note Optional, if this function is not called, warnings/errors of module will be suppressed
*/
extern void logcb(cfg_t *cfg, void (*cb)(enum loglevel l, const char *msg));
/**
* @brief Free module handle
* @param cfg Module handler
* @note Module handler becomes invalid after calling this function on it
*/
extern void destroy(cfg_t *cfg);