141 lines
3.3 KiB
C++
141 lines
3.3 KiB
C++
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// STL includes
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#include <cstring>
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#include <cstdio>
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#include <iostream>
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#include <exception>
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// Linux includes
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#include <fcntl.h>
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#include <QStringList>
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#include <QUdpSocket>
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#include <QHostInfo>
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// Local Hyperion includes
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#include "ProviderUdp.h"
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const ushort MAX_PORT = 65535;
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ProviderUdp::ProviderUdp()
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: LedDevice()
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, _udpSocket (nullptr)
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, _port(1)
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, _defaultHost("127.0.0.1")
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{
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_isDeviceReady = false;
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_latchTime_ms = 1;
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}
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ProviderUdp::~ProviderUdp()
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{
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if ( _udpSocket != nullptr )
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{
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delete _udpSocket;
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}
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}
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bool ProviderUdp::init(const QJsonObject &deviceConfig)
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{
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bool isInitOK = false;
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// Initialise sub-class
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if ( LedDevice::init(deviceConfig) )
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{
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QString host = deviceConfig["host"].toString(_defaultHost);
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if (_address.setAddress(host) )
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{
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Debug( _log, "Successfully parsed %s as an ip address.", deviceConfig["host"].toString().toStdString().c_str());
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}
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else
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{
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Debug( _log, "Failed to parse [%s] as an ip address.", deviceConfig["host"].toString().toStdString().c_str());
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QHostInfo info = QHostInfo::fromName(host);
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if (info.addresses().isEmpty())
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{
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Debug( _log, "Failed to parse [%s] as a hostname.", deviceConfig["host"].toString().toStdString().c_str());
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QString errortext = QString ("Invalid target address [%1]!").arg(host);
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this->setInError ( errortext );
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return false;
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}
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else
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{
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Debug( _log, "Successfully parsed %s as a hostname.", deviceConfig["host"].toString().toStdString().c_str());
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_address = info.addresses().first();
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}
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}
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int config_port = deviceConfig["port"].toInt(_port);
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if ( config_port <= 0 || config_port > MAX_PORT )
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{
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QString errortext = QString ("Invalid target port [%1]!").arg(config_port);
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this->setInError ( errortext );
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isInitOK = false;
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}
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else
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{
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_port = static_cast<int>(config_port);
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Debug( _log, "UDP using %s:%d", _address.toString().toStdString().c_str() , _port );
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_udpSocket = new QUdpSocket(this);
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isInitOK = true;
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}
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}
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return isInitOK;
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}
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int ProviderUdp::open()
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{
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int retval = -1;
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_isDeviceReady = false;
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// Try to bind the UDP-Socket
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if ( _udpSocket != nullptr )
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{
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QHostAddress localAddress = QHostAddress::Any;
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quint16 localPort = 0;
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if ( !_udpSocket->bind(localAddress, localPort) )
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{
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QString warntext = QString ("Could not bind local address: %1, (%2) %3").arg(localAddress.toString()).arg(_udpSocket->error()).arg(_udpSocket->errorString());
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Warning ( _log, "%s", QSTRING_CSTR(warntext));
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}
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// Everything is OK, device is ready
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_isDeviceReady = true;
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retval = 0;
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}
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else
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{
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this->setInError( " Open error. UDP Socket not initialised!" );
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}
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return retval;
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}
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int ProviderUdp::close()
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{
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int retval = 0;
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_isDeviceReady = false;
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if ( _udpSocket != nullptr )
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{
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// Test, if device requires closing
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if ( _udpSocket->isOpen() )
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{
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Debug(_log,"Close UDP-device: %s", QSTRING_CSTR( this->getActiveDeviceType() ) );
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_udpSocket->close();
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// Everything is OK -> device is closed
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}
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}
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return retval;
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}
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int ProviderUdp::writeBytes(const unsigned size, const uint8_t * data)
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{
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qint64 retVal = _udpSocket->writeDatagram((const char *)data,size,_address,_port);
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WarningIf((retVal<0), _log, "&s", QSTRING_CSTR(QString
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("(%1:%2) Write Error: (%3) %4").arg(_address.toString()).arg(_port).arg(_udpSocket->error()).arg(_udpSocket->errorString())));
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return retVal;
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}
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