mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
d6a34edfb2
* add general switchOff * refactoring of leddevices regarding ledcount and switchoff * remove obsolete includes
98 lines
2.3 KiB
C++
98 lines
2.3 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 <sys/ioctl.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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ProviderUdp::ProviderUdp()
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: LedDevice()
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, _LatchTime_ns(-1)
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, _port(0)
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{
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_udpSocket = new QUdpSocket();
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}
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ProviderUdp::~ProviderUdp()
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{
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_udpSocket->close();
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}
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bool ProviderUdp::setConfig(const Json::Value &deviceConfig, int defaultLatchTime, int defaultPort, std::string defaultHost)
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{
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QString host = QString::fromStdString(deviceConfig.get("host",defaultHost).asString());
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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"].asString().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"].asString().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"].asString().c_str());
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throw std::runtime_error("invalid target address");
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}
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Debug( _log, "Successfully parsed %s as a hostname.", deviceConfig["host"].asString().c_str());
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_address = info.addresses().first();
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}
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_port = deviceConfig.get("port", defaultPort).asUInt();
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if ( _port<=0 || _port > 65535)
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{
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throw std::runtime_error("invalid target port");
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}
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Debug( _log, "UDP using %s:%d", _address.toString().toStdString().c_str() , _port );
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_LatchTime_ns = deviceConfig.get("latchtime", defaultLatchTime).asInt();
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return true;
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}
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int ProviderUdp::open()
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{
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QHostAddress localAddress = QHostAddress::Any;
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quint16 localPort = 0;
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WarningIf( !_udpSocket->bind(localAddress, localPort), _log, "Could not bind local address: %s", strerror(errno));
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return 0;
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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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if (retVal >= 0 && _LatchTime_ns > 0)
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{
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// The 'latch' time for latching the shifted-value into the leds
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timespec latchTime;
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latchTime.tv_sec = 0;
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latchTime.tv_nsec = _LatchTime_ns;
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// Sleep to latch the leds (only if write succesfull)
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nanosleep(&latchTime, NULL);
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}
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else
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{
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Warning( _log, "Error sending: %s", strerror(errno));
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}
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return retVal;
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}
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