航迹最大1000个点，数据保存1分钟存一次

MavLinkNode/mavlinknode.cpp

@@ -99,6 +99,14 @@ MavLinkNode::~MavLinkNode()
         mavLogFile = NULL;
     }
 
+    if(logTimer)
+    {
+        logTimer->stop();
+        delete logTimer;
+        logTimer = nullptr;
+    }
+
+
     //停止回放
     if(replay)
     {
@@ -199,12 +207,31 @@ void MavLinkNode::start()
         {
             mavLogFile->close();
             delete mavLogFile;
+            mavLogFile = nullptr;
         }
 
         QDateTime current = QDateTime::currentDateTime();
-        mavLogFile = new QFile(QString("./Tlog/%1.tlog").arg(current.toString("yyyyMMddHHmmss")));
+        mavlogFileName = QString("./Tlog/%1.tlog").arg(current.toString("yyyyMMddHHmmss"));
+        mavLogFile = new QFile(mavlogFileName);
         mavLogFile->open(QIODevice::WriteOnly);
 
+        if(logTimer)
+        {
+            logTimer->stop();
+            delete logTimer;
+            logTimer = nullptr;
+        }
+
+
+        logTimer = new QTimer();
+        logTimer->setInterval(60 * 1000);//1min
+
+        connect(logTimer,&QTimer::timeout,
+                this,&MavLinkNode::LogTimerOut,Qt::DirectConnection);
+
+        logTimer->start();
+
+
         //初始化buff
         initbuff();
 
@@ -253,6 +280,14 @@ void MavLinkNode::stop()
             mavLogFile = NULL;
         }
 
+        if(logTimer)
+        {
+            logTimer->stop();
+            delete logTimer;
+            logTimer = nullptr;
+        }
+
+
         running_flag = false;
         qDebug() << "thread stop" << running_flag;
     }
@@ -335,6 +370,23 @@ void MavLinkNode::TimerOut(void)
     }
 }
 
+void MavLinkNode::LogTimerOut(void)
+{
+    if(mavLogFile)
+    {
+        //qDebug() << "flush file" << mavLogFile->bytesToWrite();
+
+        //mavLogFile->bytesToWrite();
+
+        //if(!mavLogFile->flush())
+        {
+            mavLogFile->close();
+            mavLogFile->open(QIODevice::Append);
+        }
+    }
+}
+
+
 
 void MavLinkNode::initbuff(void)
 {
@@ -470,8 +522,12 @@ void MavLinkNode::Mavlinkparse(quint32 src,QByteArray datagram)
             if (mavLogFile)
             {
                 mavLogFile->write((const char *)buff, len+sizeof(quint64));
+
             }
 
+            //mavLogFile->size()
+
+
             count++;
             if(msg.sysid < 250)             //过滤地面站发过来的数据
             {