/** Sample value remapping for mux. * * @file * @author Steffen Vogel * @copyright 2014-2020, 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 . *********************************************************************************/ #pragma once #include #include #include #define RE_MAPPING_INDEX "[a-zA-Z0-9_]+" #define RE_MAPPING_RANGE "(" RE_MAPPING_INDEX ")(?:-(" RE_MAPPING_INDEX "))?" #define RE_MAPPING_STATS "stats\\.([a-z]+)\\.([a-z]+)" #define RE_MAPPING_HDR "hdr\\.(sequence|length)" #define RE_MAPPING_TS "ts\\.(origin|received)" #define RE_MAPPING_DATA1 "data\\[" RE_MAPPING_RANGE "\\]" #define RE_MAPPING_DATA2 "(?:data\\.)?(" RE_MAPPING_INDEX ")" #define RE_MAPPING "(?:(" RE_NODE_NAME ")\\.(?:" RE_MAPPING_STATS "|" RE_MAPPING_HDR "|" RE_MAPPING_TS "|" RE_MAPPING_DATA1 "|" RE_MAPPING_DATA2 ")|(" RE_NODE_NAME ")(?:\\[" RE_MAPPING_RANGE "\\])?)" /* Forward declarations */ struct vnode; struct sample; struct signal; struct vlist; enum class MappingType { UNKNOWN, DATA, STATS, HEADER, TIMESTAMP }; enum class MappingHeaderType { LENGTH, SEQUENCE }; enum class MappingTimestampType { ORIGIN, RECEIVED }; struct mapping_entry { char *node_name; struct vnode *node; /**< The node to which this mapping refers. */ enum MappingType type; /**< The mapping type. Selects one of the union fields below. */ /** The number of values which is covered by this mapping entry. * * A value of 0 indicates that all remaining values starting from the offset of a sample should be mapped. */ int length; unsigned offset; /**< Offset of this mapping entry within sample::data */ union { struct { int offset; struct signal *signal; char *first; char *last; } data; struct { enum villas::Stats::Metric metric; enum villas::Stats::Type type; } stats; struct { enum MappingHeaderType type; } header; struct { enum MappingTimestampType type; } timestamp; }; }; int mapping_entry_prepare(struct mapping_entry *me, struct vlist *nodes); int mapping_entry_update(const struct mapping_entry *me, struct sample *remapped, const struct sample *original); int mapping_entry_init(struct mapping_entry *me); int mapping_entry_destroy(struct mapping_entry *me); int mapping_entry_parse(struct mapping_entry *me, json_t *json); int mapping_entry_parse_str(struct mapping_entry *e, const std::string &str); int mapping_entry_to_str(const struct mapping_entry *me, unsigned index, char **str); int mapping_list_parse(struct vlist *ml, json_t *json); int mapping_list_prepare(struct vlist *ml, struct vlist *nodes); int mapping_list_remap(const struct vlist *ml, struct sample *remapped, const struct sample *original);