54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
#include "HxBroadcast.h"
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#include <QHostAddress>
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#include <QJsonDocument>
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#include <QJsonObject>
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HxBroadcast *broadcast = nullptr;
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HxBroadcast *HxBroadcast::context() { return broadcast; }
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void HxBroadcast::initialization(int port)
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{
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broadcast = new HxBroadcast();
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broadcast->port = port;
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broadcast->socket = new QUdpSocket();
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connect(broadcast->socket, &QUdpSocket::readyRead, broadcast, &HxBroadcast::receive_ready_read);
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connect(broadcast, &HxBroadcast::publish_event, broadcast, &HxBroadcast::publish_achieve);
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}
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void HxBroadcast::publish(QString message) { emit broadcast->publish_event(message); }
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void HxBroadcast::publish_json(int action_type, std::initializer_list<QPair<QString, QJsonValue>> args)
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{
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QJsonObject root, msginfo;
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for (std::initializer_list<QPair<QString, QJsonValue>>::const_iterator i = args.begin(); i != args.end(); ++i)
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msginfo.insert(i->first, i->second);
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root.insert("action_type", action_type);
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root.insert("msgInfo", msginfo);
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publish(QJsonDocument(root).toJson(QJsonDocument::Compact));
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}
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void HxBroadcast::publish_achieve(QString message) { socket->writeDatagram(message.toUtf8(), QHostAddress::Broadcast, broadcast->port); }
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void HxBroadcast::receive_ready_read()
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{
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/* 拥有等待的数据报 */
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while (socket->hasPendingDatagrams())
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{
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QByteArray datagram;
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/* 让datagram的大小为等待处理的数据报的大小，这样才能接收到完整的数据 */
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datagram.resize(socket->pendingDatagramSize());
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/* 接收数据报，将其存放到datagram中 */
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socket->readDatagram(datagram.data(), datagram.size());
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emit broadcast->receive_event(datagram);
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}
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}
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