server: base server code.

Server/Server.h

@@ -0,0 +1,50 @@
+// Server.h
+#ifndef SERVER_H
+#define SERVER_H
+
+#include <QMap>
+#include <QReadWriteLock>
+#include <QTcpServer>
+#include <QTcpSocket>
+#include <QTimer>
+
+#include "Protocol.h"
+
+class Server : public QTcpServer
+{
+    Q_OBJECT
+public:
+    explicit Server(QObject* parent = nullptr);
+    ~Server();
+
+    bool startServer(quint16 port);
+    void stopServer();
+
+private slots:
+    void onNewConnection();
+    void onClientDisconnected();
+    void onReadyRead();
+    void monitorClients();
+
+private:
+    QByteArray getClients();
+
+private:
+    struct ClientInfo {
+        QTcpSocket* socket;
+        QString id;
+        qint64 connectTime;
+        QByteArray buffer;
+    };
+
+    void processClientData(QSharedPointer<ClientInfo> client);
+    bool forwardData(QSharedPointer<ClientInfo> client, QSharedPointer<FrameBuffer> frame);
+    void replyRequest(QSharedPointer<ClientInfo> client, QSharedPointer<FrameBuffer> frame);
+    bool sendData(QTcpSocket* socket, QSharedPointer<FrameBuffer> frame);
+
+    QMap<QString, QSharedPointer<ClientInfo>> clients_;
+    QReadWriteLock rwLock_;
+    QTimer* monitorTimer_;
+};
+
+#endif   // SERVER_H