libicsneo/communication/packet/wivicommandpacket.cpp

66 lines
2.2 KiB
C++

#include "icsneo/communication/packet/wivicommandpacket.h"
#include "icsneo/communication/message/wiviresponsemessage.h"
using namespace icsneo;
std::shared_ptr<WiVI::ResponseMessage> WiVI::CommandPacket::DecodeToMessage(const std::vector<uint8_t>& bytestream) {
if(bytestream.size() < sizeof(WiVI::CommandPacket::Header))
return {};
auto msg = std::make_shared<WiVI::ResponseMessage>();
const auto& header = *reinterpret_cast<const WiVI::CommandPacket::Header*>(bytestream.data());
switch(header.cmd) {
case WiVI::Command::Result: {
if(bytestream.size() < sizeof(WiVI::CommandPacket::Result))
return {};
if(bytestream.size() != sizeof(WiVI::CommandPacket::Header) + header.length)
return {};
const auto& decoded = *reinterpret_cast<const WiVI::CommandPacket::Result*>(bytestream.data());
msg->responseTo = decoded.responseTo;
msg->success = decoded.result != 0;
break;
}
case WiVI::Command::GetSignal: {
// Use the SetSignal structure since it matches the response
if(bytestream.size() < sizeof(WiVI::CommandPacket::SetSignal))
return {};
if(bytestream.size() != sizeof(WiVI::CommandPacket::SetSignal) + header.length)
return {};
const auto& setSignal = *reinterpret_cast<const WiVI::CommandPacket::SetSignal*>(bytestream.data());
msg->responseTo = WiVI::Command::GetSignal;
msg->value = setSignal.value.ValueInt32;
break;
}
default: // Unknown command response
return {};
}
return msg;
}
std::vector<uint8_t> WiVI::CommandPacket::GetSignal::Encode(WiVI::SignalType type) {
std::vector<uint8_t> ret(sizeof(WiVI::CommandPacket::GetSignal));
auto& frame = *reinterpret_cast<WiVI::CommandPacket::GetSignal*>(ret.data());
frame.header.cmd = WiVI::Command::GetSignal;
frame.header.length = sizeof(frame) - sizeof(frame.header);
frame.type = type;
return ret;
}
std::vector<uint8_t> WiVI::CommandPacket::SetSignal::Encode(WiVI::SignalType type, CoreMiniFixedPointValue value) {
std::vector<uint8_t> ret(sizeof(WiVI::CommandPacket::SetSignal));
auto& frame = *reinterpret_cast<WiVI::CommandPacket::SetSignal*>(ret.data());
frame.header.cmd = WiVI::Command::SetSignal;
frame.header.length = sizeof(frame) - sizeof(frame.header);
frame.type = type;
frame.value = value;
return ret;
}