问题描述
我想通过Windows上的Qt连接到我的PIC32 UDP服务器。使用C中的测试程序,我可以连接并获得答案,但是使用Qt则不可能。我在做什么错了?
如您所见,我在一段时间内正在使用主动等待,并且我的广告位似乎没有被触发。也许您可以在这里看到我的错误?我讨厌主动等待。...
这是我在Qt上的代码:
void MuTweezer::run()
{
QHostAddress sender;
quint16 senderPort;
QByteArray datagram;
qint64 pendingBytes;
int cpt = 0;
// Message to send
QByteArray message("Hello that's charly");
// m_imuRcvSocket.bind(10000); why is it for in a client side !?
// SEEMS to NOT BE TRIGGERED
connect(&m_imuRcvSocket,SIGNAL(readyRead()),this,SLOT(recu()));
while(m_isRunning && cpt++ < 10)
{
// send the initial message
qint64 bytesSent= m_imuRcvSocket.writeDatagram(message,QHostAddress("192.168.0.15"),10000);
cout << "Bytes sent : " << bytesSent << endl;
// We wait the answer from the server
while(!m_imuRcvSocket.hasPendingDatagrams());
// If there is no datagram available,this function returns -1
if((pendingBytes = m_imuRcvSocket.pendingDatagramSize()) == -1)
continue;
datagram.resize(pendingBytes);
m_imuRcvSocket.readDatagram(datagram.data(),datagram.size(),&sender,&senderPort);
cout << "================="
<< "\nMessage from <" << sender.toString().toStdString().substr(7) << "> on port " << senderPort
<< "\nString : " << datagram.data()
<< "\nSize: " << pendingBytes << " Bytes (characters)\n"
<< "=================" <<
endl;
}
}
这是我在PIC32上的代码,如您所见,一旦收到消息,我就发送答案,这使我可以进行双向通信:
if(!UDPIsOpened(mySocket)){
DBPRINTF("Socket CLOSED");
continue; // go back to loop beginning
}
DBPRINTF("Socket OPEN");
if(!(lengthToGet = UDPIsGetReady(mySocket)))
continue;
// get the string
// UDPGetArray : returns the number of bytes successfully read from the UDP buffer.
if((lengthWeGot = UDPGetArray(message,lengthToGet)))
UDPDiscard(); // Discards any remaining RX data from a UDP socket.
/* Modifie it and send it back */
if(UDPIsPutReady(mySocket)){
message[20]= 'Z';
message[21]= 'i';
message[22]= 'b';
message[23]= 'o';
UDPPutArray(message,lengthWeGot);
UDPFlush();
}
有什么主意吗?
解决方法
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