에프에이리눅스 / 1611_0007_prime_oven

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app/gui/oven_control/udphandler.cpp 2.64 KB
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  #include "udphandler.h"
  
  #include <QtDebug>
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  #define IPC_UDP_SYS_HOST    "127.0.0.1"
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  #define IPC_UDP_SYS_PORT    4001
  #define IPC_UDP_GUI_PORT    4000
  
  typedef struct {
      int header;
      char body[];
  } STRUCT_PACK packet_t;
  
  UdpHandler::UdpHandler(QObject *parent) : QObject(parent)
  {
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      bzero(&control, sizeof(control));
      bzero(&state, sizeof(state));
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  }
  
  bool UdpHandler::init()
  {
      sock = new QUdpSocket(this);
      if (!sock->bind(IPC_UDP_GUI_PORT))
          return false;
  
      connect(sock, SIGNAL(readyRead()), this, SLOT(readPendingDatagrams()));
  
      return true;
  }
  
  void UdpHandler::readPendingDatagrams()
  {
      while (sock->hasPendingDatagrams()) {
          QByteArray datagram;
          datagram.resize(sock->pendingDatagramSize());
          QHostAddress sender;
          quint16 senderPort;
  
          sock->readDatagram(datagram.data(), datagram.size(), &sender, &senderPort);
  
          processDatagram(datagram);
      }
  }
  
  void UdpHandler::processDatagram(QByteArray &datagram)
  {
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      sock->writeDatagram(datagram, QHostAddress("192.168.4.191"), 40001);
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      packet_t *packet = (packet_t *) datagram.data();
      switch (packet->header)
      {
      case HDR_OVEN_CONTROL:
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          qDebug() << "Received Control";
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          processControl((oven_control_t *) packet->body);
          break;
      case HDR_OVEN_STATE:
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          qDebug() << "Received State";
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          processState((oven_state_t *) packet->body);
          break;
      case HDR_ERROR_CODE:
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          qDebug() << "Received Error";
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          break;
      }
  }
  
  void UdpHandler::processControl(oven_control_t *control)
  {
      if (memcmp(&this->control, control, sizeof(this->control)))
      {
          memcpy(&this->control, control, sizeof(this->control));
          emit changed();
      }
  }
  
  void UdpHandler::processState(oven_state_t *state)
  {
      if (memcmp(&this->state, state, sizeof(this->state)))
      {
          memcpy(&this->state, state, sizeof(this->state));
          emit changed();
      }
  }
  
  void UdpHandler::turnOn(int target)
  {
      sendCommand(CMD_ONOFF, target, SWITCH_ON);
  }
  
  void UdpHandler::turnOff(int target)
  {
      sendCommand(CMD_ONOFF, target, SWITCH_OFF);
  }
  
  void UdpHandler::set(int target, int value)
  {
      sendCommand(CMD_VALUE, target, value);
  }
  
  void UdpHandler::sendCommand(int cmd, int target, int value)
  {
      command_t command = { cmd, target, value };
      qDebug() << "Send" << cmd << target << value;
      sock->writeDatagram((const char *) &command, sizeof(command), QHostAddress(IPC_UDP_SYS_HOST), IPC_UDP_SYS_PORT);
  }
  
  void UdpHandler::fillControl(oven_control_t &container)
  {
      memcpy(&container, &control, sizeof(control));
  }
  
  void UdpHandler::fillData(oven_state_t &container)
  {
      memcpy(&container, &state, sizeof(state));
  }