Primitive UDP Protocole

.gitignore

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+*.pro.user
+Tesp_Script.cpp

UDP.pro

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+QT       += core
+QT       += network
+QT       -= gui
+
+TARGET = UDP
+CONFIG   += console
+CONFIG   -= app_bundle
+
+TEMPLATE = app
+
+CONFIG += c++11 console
+CONFIG -= app_bundle
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+        Tesp_Script.cpp \
+        main.cpp \
+        socket.cpp
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+HEADERS += \
+    socket.h

main.cpp

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+#include <QCoreApplication>
+#include "socket.h"
+
+int main(int argc, char* argv[])
+{
+    QCoreApplication a(argc, argv);
+
+    UDP_Socket server;
+    UDP_Socket client;
+
+    client.SayHello();
+    server.SayHello();
+    client.SayMsg("Msg");
+
+    return a.exec();
+}

socket.cpp

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+#include "socket.h"
+
+UDP_Socket::UDP_Socket(QObject* parent) :
+    QObject(parent)
+{
+    socket = new QUdpSocket(this);
+    socket->bind(QHostAddress::LocalHost, 1234);
+    connect(socket, SIGNAL(readyRead()), this, SLOT(readyRead()));
+}
+
+void UDP_Socket::SayHello()
+{
+    SayMsg("Connected :))");
+}
+
+void UDP_Socket::SayMsg(QString a)
+{
+    QByteArray Data;
+    Data.append(a);
+    socket->writeDatagram(Data, QHostAddress::LocalHost, 1234);
+}
+
+void UDP_Socket::readyRead()
+{
+    QByteArray Buffer;
+    Buffer.resize(socket->pendingDatagramSize());
+    QHostAddress sender_addr{};
+    quint16 sender_port{};
+    socket->readDatagram(Buffer.data(), Buffer.size(), &sender_addr, &sender_port);
+
+    qDebug() << "Message from :" << sender_addr.toString();
+    qDebug() << "Port : " << sender_port;
+    qDebug() << "Content : " << Buffer;
+}

socket.h

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+#ifndef UDP_Socket_H
+#define UDP_Socket_H
+
+#include <QObject>
+#include <QUdpSocket>
+
+class UDP_Socket : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit UDP_Socket(QObject* parent = nullptr);
+
+    void SayHello();
+    void SayMsg(QString a);
+
+signals:
+
+public slots:
+    void readyRead();
+
+private:
+    QUdpSocket* socket;
+};
+
+#endif //UDP_Socket_H