mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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79 lines
1.4 KiB
C++
79 lines
1.4 KiB
C++
/** Sample value remapping for path source muxing.
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*
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* @file
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* @author Steffen Vogel <post@steffenvogel.de>
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* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
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* @license Apache 2.0
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*********************************************************************************/
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#include <villas/mapping_list.hpp>
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#include <villas/exceptions.hpp>
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using namespace villas;
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using namespace villas::node;
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int MappingList::parse(json_t *json)
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{
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int ret;
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size_t i;
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json_t *json_entry;
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json_t *json_mapping;
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if (json_is_string(json)) {
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json_mapping = json_array();
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json_array_append(json_mapping, json);
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}
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else if (json_is_array(json))
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json_mapping = json_incref(json);
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else
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return -1;
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json_array_foreach(json_mapping, i, json_entry) {
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auto me = std::make_shared<MappingEntry>();
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if (!me)
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throw MemoryAllocationError();
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ret = me->parse(json_entry);
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if (ret)
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goto out;
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push_back(me);
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}
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ret = 0;
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out: json_decref(json_mapping);
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return ret;
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}
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int MappingList::remap(struct Sample *remapped, const struct Sample *original) const
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{
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int ret;
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for (auto me : *this) {
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ret = me->update(remapped, original);
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if (ret)
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return ret;
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}
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return 0;
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}
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int MappingList::prepare(NodeList &nodes)
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{
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int ret;
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unsigned off = 0;
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for (auto me : *this) {
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ret = me->prepare(nodes);
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if (ret)
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return ret;
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me->offset = off;
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off += me->length;
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}
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return 0;
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}
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