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VILLASnode/server/include/cfg.h

89 lines
2.5 KiB
C

/** Configuration file parser.
*
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
* @copyright 2014, Institute for Automation of Complex Power Systems, EONERC
* @file
*/
#ifndef _CFG_H_
#define _CFG_H_
#include <libconfig.h>
struct node;
struct path;
struct interface;
struct netem;
/** Global configuration */
struct settings {
/** Task priority (lower is better) */
int priority;
/** Core affinity of this task */
int affinity;
/** A libconfig object pointing to the root of the config file */
config_setting_t *cfg;
};
/** Parse configuration file and store settings in supplied struct settings.
*
* @param filename The path to the configration file (relative or absolute)
* @param cfg A initialized libconfig object
* @param set The global configuration structure
* @param nodes A linked list of nodes which should be parsed
* @param paths A linked list of paths which should be parsed
* @param interfaces A linked list of interfaces which should be parsed
* @return
* - 0 on success
* - otherwise an error occured
*/
int config_parse(const char *filename, config_t *cfg, struct settings *set,
struct node **nodes, struct path **paths, struct interface **interfaces);
/** Parse the global section of a configuration file.
*
* @param cfg A libconfig object pointing to the root of the file
* @param set The global configuration file
* @return
* - 0 on success
* - otherwise an error occured
*/
int config_parse_global(config_setting_t *cfg, struct settings *set);
/** Parse a single path and add it to the global configuration.
*
* @param cfg A libconfig object pointing to the path
* @param paths Add new paths to this linked list
* @param nodes A linked list of all existing nodes
* @return
* - 0 on success
* - otherwise an error occured
*/
int config_parse_path(config_setting_t *cfg,
struct path **paths, struct node **nodes);
/** Parse a single node and add it to the global configuration.
*
* @param cfg A libconfig object pointing to the node
* @param nodes Add new nodes to this linked list
* @param interfaces Search this list for existing interfaces
* @return
* - 0 on success
* - otherwise an error occured
*/
int config_parse_node(config_setting_t *cfg,
struct node **nodes, struct interface **interfaces);
/** Parse network emulator (netem) settings
*
* @param cfg A libconfig object containing the settings
* @param em A pointer to the settings
* @return
* - 0 on success
* - otherwise an error occured
*/
int config_parse_netem(config_setting_t *cfg, struct netem *em);
#endif /* _CFG_H_ */