mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
/* Sample value remapping for path source muxing.
|
|
*
|
|
* Author: Steffen Vogel <post@steffenvogel.de>
|
|
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <jansson.h>
|
|
#include <memory>
|
|
|
|
#include <villas/common.hpp>
|
|
#include <villas/node_list.hpp>
|
|
#include <villas/stats.hpp>
|
|
|
|
#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 "\\])?)"
|
|
|
|
namespace villas {
|
|
namespace node {
|
|
|
|
// Forward declarations
|
|
class Node;
|
|
struct Sample;
|
|
class Signal;
|
|
|
|
class MappingEntry {
|
|
|
|
public:
|
|
using Ptr = std::shared_ptr<MappingEntry>;
|
|
|
|
enum class Type { UNKNOWN, DATA, STATS, HEADER, TIMESTAMP };
|
|
|
|
enum class HeaderType { LENGTH, SEQUENCE };
|
|
|
|
enum class TimestampType { ORIGIN, RECEIVED };
|
|
|
|
Node *node; // The node to which this mapping refers.
|
|
enum Type 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;
|
|
Signal *signal;
|
|
|
|
char *first;
|
|
char *last;
|
|
} data;
|
|
|
|
struct {
|
|
enum Stats::Metric metric;
|
|
enum Stats::Type type;
|
|
} stats;
|
|
|
|
struct {
|
|
enum HeaderType type;
|
|
} header;
|
|
|
|
struct {
|
|
enum TimestampType type;
|
|
} timestamp;
|
|
};
|
|
|
|
std::string nodeName; // Used for between parse and prepare only.
|
|
|
|
MappingEntry();
|
|
|
|
int prepare(NodeList &nodes);
|
|
|
|
int update(struct Sample *remapped, const struct Sample *original) const;
|
|
|
|
int parse(json_t *json);
|
|
|
|
int parseString(const std::string &str);
|
|
|
|
std::string toString(unsigned index) const;
|
|
|
|
Signal::Ptr toSignal(unsigned index) const;
|
|
};
|
|
|
|
} // namespace node
|
|
} // namespace villas
|