/**
* test case for getDNS() functions
*/
void
TestEthernet::tcGetDNS(void)
{
cout << "获取DNS服务：" << endl;
cout << "参数为空时 ：" <<endl;
char *strPreferred = NULL;
char *strAfternative = NULL;
if (0 != getDNS(strPreferred, strAfternative))
{
cout << "获取DNS服务成功！" << endl;
cout << "strPreferred :" << endl;
cout << "strAfternative :" << endl;
}
else
{
cout << "获取DNS服务失败！" << endl;
}
cout << "参数不为空时 ：" <<endl;
char strPreferred1[] = "Preferred";
char strAfternative1[] = "strAfternative";
cout << "before getDNS():" << endl;
cout << "strPreferred :" << endl;
cout << "strAfternative :" << endl;
cout << "After getDNS():" << endl;
if (0 != getDNS(strPreferred1,strAfternative1))
{
cout << "获取DNS服务成功！" << endl;
cout << "strPreferred :" << endl;
cout << "strAfternative :" << endl;
}
else
{
cout << "获取DNS服务失败！" << endl;
}
}
bool SVT_HttpDownload::getHttpFileProcess()
{
QFile f(mLocalFile);
QIODevice::OpenMode mode=(mStartPos>0)?(QIODevice::WriteOnly|QIODevice::Append):QIODevice::WriteOnly;
if(!f.open(mode))
{
mErrorStr="Can Not Open Local File";
return false;
}
QByteArray arraybuffer;
QUrl url(mUrl);
SVT_IpAddress ip = getDNS(url.host());
if(!ip.isValid())
{
mErrorStr="DNS Error";
return false;
}
SVT_TcpSocket tcp_sock;
char recv_buff[1024] = {0};
QString request = "GET %1 HTTP/1.1\r\nConnection: Keep-Alive\r\nHost: %2\r\nRange: bytes=%3-\r\n\r\n";
request = request.arg(url.path(), url.host()).arg(mStartPos);
const QByteArray reqarray = request.toAscii();
_SpeedCalculater speedCalc(200);
bool headOk=false;
quint64 total=0;
quint64 processed=0;
if(DO_AND_CHECKEXIT(tcp_sock.create())
&&DO_AND_CHECKEXIT(tcp_sock.connect(ip,url.port(80)))
&&(DO_AND_CHECKEXIT(tcp_sock.waitForWriteReady(1000))
||DO_AND_CHECKEXIT(tcp_sock.waitForWriteReady(1000))
||DO_AND_CHECKEXIT(tcp_sock.waitForWriteReady(1000))
||DO_AND_CHECKEXIT(tcp_sock.waitForWriteReady(1000))
)
&&DO_AND_CHECKEXIT(reqarray.size()==tcp_sock.sendData(reqarray.data(),reqarray.size()) )
)
{
QDateTime ti_last_signal=QDateTime::currentDateTime().addYears(-1);
while(!CAN_EXIT)
{
int readedtemp ;
if( (readedtemp= tcp_sock.recvData(recv_buff, sizeof(recv_buff)) ) <=0)
{
break;
}
if(!headOk)
{
arraybuffer.append(recv_buff,readedtemp);
int bound=getHttpHeaderBound(arraybuffer);
if(bound >=0)
{
total=getRecvFileSize(arraybuffer);
arraybuffer.remove(0,bound);
f.write(arraybuffer);
processed=arraybuffer.count();
// if(total <= 0)
// {
// mErrorStr="Wrong Total Size";
// return false;
// }
speedCalc.init();
headOk=true;
}
}
else
{
processed+=readedtemp;
f.write(recv_buff,readedtemp);
if(ti_last_signal.addMSecs(200) < QDateTime::currentDateTime())
{
speedCalc.addData(processed);
ti_last_signal=QDateTime::currentDateTime();
emit progress(mStartPos+processed, total, speedCalc.calculateSpeed());
}
}
}
}
f.close();
return (!total ||total==processed);
}
