2021-06-02 09:29:27 -04:00
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/*
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extended.cpp
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Copyright (c) 2021 Kevin Matz (kevin.matz@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "extended.h"
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namespace SACN {
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namespace EXTENDED {
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frame_sync_header::frame_sync_header(PDU::Stream stream) {
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sequence_number = stream->readType<decltype(sequence_number)>();
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sync_address = stream->readType<decltype(sync_address)>();
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2021-06-02 09:29:27 -04:00
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stream->read(reserved, sizeof(reserved));
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if (stream->gcount() != sizeof(reserved))
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stream->setstate(std::ios_base::failbit);
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2021-06-02 09:29:27 -04:00
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}
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frame_discovery_header::frame_discovery_header(PDU::Stream stream) {
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stream->read(source_name, sizeof(source_name));
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if (stream->gcount() != sizeof(source_name))
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stream->setstate(std::ios_base::failbit);
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2021-06-02 09:29:27 -04:00
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stream->read(reserved, sizeof(reserved));
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if (stream->gcount() != sizeof(reserved))
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stream->setstate(std::ios_base::failbit);
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2021-06-02 09:29:27 -04:00
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}
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Pdu::Pdu(PDU::Stream stream)
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: PDU::Pdu(stream, 4) // vectors are 4 octets
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{
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if (stream->fail()) return;
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if (!stream_->good()) return;
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2021-06-02 09:29:27 -04:00
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if (flags_.hasHeader)
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switch(vector()) {
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case VECTOR_E131_EXTENDED_SYNCHRONIZATION:
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setHeader(new frame_sync_header(stream_));
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break;
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case VECTOR_E131_EXTENDED_DISCOVERY:
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setHeader(new frame_discovery_header(stream_));
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break;
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default:
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break;
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}
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}
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namespace DISCOVERY {
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discovery_list_header::discovery_list_header(PDU::Stream stream) {
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page = stream->readType<decltype(page)>();
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last_page = stream->readType<decltype(last_page)>();
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}
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Pdu::Pdu(PDU::Stream stream)
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: PDU::Pdu(stream, 4) // vectors are 4 octets
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{
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if (stream->fail()) return;
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if (!stream_->good()) return;
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2021-06-02 09:29:27 -04:00
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if (flags_.hasHeader)
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setHeader(new discovery_list_header(stream_));
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}
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/**
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Construct a Universe Source from an sACN discovery layer PDU
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*/
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DiscoveredUniverse::DiscoveredUniverse(const std::shared_ptr<EXTENDED::DISCOVERY::Pdu> pdu) {
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auto root_header = (RLP::rlp_header*)pdu->parent()->parent()->header();
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cid_ = root_header->cid;
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auto frame_header = (EXTENDED::frame_discovery_header*)pdu->parent()->header();
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description_ = std::string((char*)frame_header->source_name);
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universe_ = pdu->stream()->readType<decltype(universe_)>();
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}
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} // DISCOVERY
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} // EXTENDED
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} // SACN
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