mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
75 lines
1.6 KiB
C++
75 lines
1.6 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 "LedUdpDevice.h"
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LedUdpDevice::LedUdpDevice(const std::string& output, const int latchTime_ns)
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: _target(output)
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, _LatchTime_ns(latchTime_ns)
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{
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_udpSocket = new QUdpSocket();
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QString str = QString::fromStdString(_target);
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QStringList str_splitted = str.split(":");
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if (str_splitted.size() != 2)
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{
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throw("Error parsing hostname:port");
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}
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QHostInfo info = QHostInfo::fromName(str_splitted.at(0));
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if (!info.addresses().isEmpty())
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{
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// use the first IP address
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_address = info.addresses().first();
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}
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_port = str_splitted.at(1).toInt();
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}
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LedUdpDevice::~LedUdpDevice()
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{
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_udpSocket->close();
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}
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int LedUdpDevice::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, "Couldnt bind local address: %s", strerror(errno));
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return 0;
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}
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int LedUdpDevice::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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