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VILLASnode/include/villas/mapping.h

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C

/** Sample value remapping for mux.
*
* @file
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
* @license GNU General Public License (version 3)
*
* VILLASnode
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************************/
#pragma once
#include <libconfig.h>
#include "stats.h"
#include "common.h"
#include "list.h"
/* Forward declarations */
struct stats;
struct node;
struct sample;
struct list;
struct mapping_entry {
struct node *source; /**< Unused for now. */
int length;
enum {
MAPPING_TYPE_DATA,
MAPPING_TYPE_STATS,
MAPPING_TYPE_HEADER,
MAPPING_TYPE_TIMESTAMP
} type;
union {
struct {
int offset;
} data;
struct {
enum stats_id id;
enum stats_type {
MAPPING_STATS_TYPE_LAST,
MAPPING_STATS_TYPE_HIGHEST,
MAPPING_STATS_TYPE_LOWEST,
MAPPING_STATS_TYPE_MEAN,
MAPPING_STATS_TYPE_VAR,
MAPPING_STATS_TYPE_STDDEV,
MAPPING_STATS_TYPE_TOTAL
} type;
} stats;
struct {
enum header_type {
MAPPING_HEADER_LENGTH,
MAPPING_HEADER_SEQUENCE,
} id;
} header;
struct {
enum timestamp_type {
MAPPING_TIMESTAMP_ORIGIN,
MAPPING_TIMESTAMP_RECEIVED
} id;
} timestamp;
};
};
struct mapping {
enum state state;
int real_length;
struct list entries;
};
int mapping_init(struct mapping *m);
int mapping_parse(struct mapping *m, config_setting_t *cfg);
int mapping_check(struct mapping *m);
int mapping_destroy(struct mapping *m);
int mapping_remap(struct mapping *m, struct sample *orig, struct sample *remapped, struct stats *s);
int mapping_entry_parse(struct mapping_entry *e, config_setting_t *cfg);
int mapping_entry_parse_str(struct mapping_entry *e, const char *str);