mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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94 lines
2.1 KiB
C++
94 lines
2.1 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 <svogel2@eonerc.rwth-aachen.de>
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* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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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