实现赋码仪命令

升级小板程序失败时停止

prot/prot_cmdline.cpp

@@ -46,17 +46,31 @@ static QString get_local_ip()
   return QString();
 }
 
+
+bool CheckNetInfo()
+{
+    QNetworkInterface net= QNetworkInterface::interfaceFromName("eth0");
+    if(net.flags().testFlag(QNetworkInterface::IsUp)
+            && net.flags().testFlag(QNetworkInterface::IsRunning)
+            && !net.flags().testFlag(QNetworkInterface::IsLoopBack)
+            && (net.name() == "eth0"))
+    {
+        // qDebug() << "eth0 is Connected" << endl;
+        return true;
+    }
+    else
+    {
+        // qDebug() << "eth0 is Not Connected";
+        return false;
+    }
+}
+
+
+
+
 void command::init_cb()
 {
   mycfg *cfg_ = syscfg();
-  if (get_local_ip().isEmpty())
-  {
-    qDebug("modify local ip addr.");
-    QString str = "ifconfig eth0 %1";
-    system(str.arg(cfg_->local_ip).toLocal8Bit().data());
-    str = "route add default gw %1";
-    system(str.arg(cfg_->gateway_ip).toLocal8Bit().data());
-  }
   if (socket_ == nullptr)
   {
     socket_ = new QUdpSocket(this);
@@ -65,8 +79,46 @@ void command::init_cb()
     qInfo() << "udp command start.";
     qInfo() << "cmd port=" << cfg_->cmd_port;
   }
+  if(timer_==nullptr)
+  {
+    timer_=new QTimer();
+    connect(timer_,&QTimer::timeout,this,&command::timer_cb);
+    timer_->start(3000);
+  }
 }
 
+void command::timer_cb()
+{
+  mycfg *cfg_ = syscfg();
+  // qDebug("command timer cb.");
+  if(CheckNetInfo()==true){
+    if(networt_state==0){
+      qDebug("network connected.");
+      networt_state=1;
+    }
+    if (get_local_ip().isEmpty())
+    {
+      qDebug()<<"modify local ip addr."<<endl;
+      QString str="ifconfig eth0 %1";
+      str=str.arg(cfg_->local_ip);
+      system(str.toLocal8Bit().data());
+      qDebug()<<str<<endl;
+      str="route add default gw %1";
+      str=str.arg(cfg_->gateway_ip);
+      system(str.toLocal8Bit().data());
+      qDebug()<<str<<endl;
+    }
+  }else{
+    if(networt_state!=0){
+      qDebug("network  disconnected.");
+      networt_state=0;
+    }
+  }
+}
+
+
+
+
 void command::send(QByteArray data)
 {
   if (socket_ == nullptr)

prot/prot_cmdline.h

@@ -11,6 +11,7 @@
 #include "QThread"
 #include <QNetworkInterface>
 #include <QUdpSocket>
+#include "QTimer"
 
 // using namespace std;
 // using namespace std::placeholders;
@@ -41,6 +42,8 @@ public:
   command()
   {
     socket_ = nullptr;
+    timer_=nullptr;
+    networt_state=0;
   }
   virtual ~command()
   {
@@ -49,6 +52,7 @@ public:
   }
   void send(QByteArray data);
   void init_cb();
+  void timer_cb();
   void ready_read_cb();
 
 private:
@@ -56,6 +60,8 @@ private:
   QByteArray recv_data;
   QHostAddress host_addr;
   quint16 port;
+  QTimer *timer_;
+  int networt_state;
 };