增加组播组件接收功能

.gitignore

@@ -1,8 +1,9 @@
-debug/*
+debug/*
-release/*
+release/*
-.qmake.stash
+.qmake.stash
-HxUtils.pro.*
+HxUtils.pro.*
-Makefile*
+Makefile*
-*.Debug
+*.Debug
-*.Release
+*.Release
-*.TMP
+*.TMP
+._*

HxBroadcast.cpp

@@ -1,17 +1,44 @@
-#include "HxBroadcast.h"
+#include "HxBroadcast.h"
-
+
-#include <QHostAddress>
+#include <QHostAddress>
-
+
-int HxBroadcast::port = 0;
+HxBroadcast *broadcast = nullptr;
-QUdpSocket *HxBroadcast::socket = nullptr;
+
-
+HxBroadcast* HxBroadcast::context() { return broadcast; }
-void HxBroadcast::initialization(int port)
+
-{
+void HxBroadcast::initialization(int port)
-    HxBroadcast::port = port;
+{
-    HxBroadcast::socket = new QUdpSocket();
+    broadcast = new HxBroadcast();
-}
+
-
+    broadcast->port = port;
-void HxBroadcast::publish(QString message)
+    broadcast->socket = new QUdpSocket();
-{
+    connect(broadcast->socket, &QUdpSocket::readyRead, broadcast, &HxBroadcast::receive_ready_read);
-    socket->writeDatagram(message.toUtf8(), QHostAddress::Broadcast, port);
+    connect(broadcast, &HxBroadcast::publish_event, broadcast, &HxBroadcast::publish_achieve);
-}
+}
+
+void HxBroadcast::publish(QString message)
+{
+    emit broadcast->publish_event(message);
+}
+
+void HxBroadcast::publish_achieve(QString message)
+{
+    socket->writeDatagram(message.toUtf8(), QHostAddress::Broadcast, broadcast->port);
+}
+
+void HxBroadcast::receive_ready_read()
+{
+    /* 拥有等待的数据报 */
+    while (socket->hasPendingDatagrams())
+    {
+        QByteArray datagram;
+
+        /* 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 */
+        datagram.resize(socket->pendingDatagramSize());
+
+        /* 接收数据报，将其存放到datagram中*/
+        socket->readDatagram(datagram.data(), datagram.size());
+
+        emit broadcast->receive_event(QString::fromLocal8Bit(datagram));
+    }
+}

HxBroadcast.h

@@ -1,29 +1,42 @@
-#ifndef HXBROADCAST_H
+#ifndef HXBROADCAST_H
-#define HXBROADCAST_H
+#define HXBROADCAST_H
-
+
-#include <QObject>
+#include <QObject>
-#include <QUdpSocket>
+#include <QUdpSocket>
-
+
-class HxBroadcast
+class HxBroadcast : public QObject
-{
+{
-public:
+    Q_OBJECT
-    /**
+public:
-     * @brief 初始化
+    static HxBroadcast* context();
-     * 
+
-     * @param port 广播端口
+    /**
-     */
+     * @brief 初始化
-    static void initialization(int port);
+     * 
-
+     * @param port 广播端口
-    /**
+     */
-     * @brief 发布消息
+    static void initialization(int port);
-     * 
+
-     * @param message 消息
+    /**
-     */
+     * @brief 发布消息
-    static void publish(QString message);
+     *
-
+     * @param message 消息
-private:
+     */
-    static int port;
+    static void publish(QString message);
-    static QUdpSocket *socket;
+
-};
+private:
-
+    void publish_achieve(QString message);
-#endif // HXBROADCAST_H
+
+signals:
+    void publish_event(QString message);
+    void receive_event(QString data);
+
+private slots:
+    void receive_ready_read();
+
+private:
+    int port;
+    QUdpSocket *socket;
+};
+
+#endif // HXBROADCAST_H