本文整理汇总了C++中QUdpSocket::error方法的典型用法代码示例。如果您正苦于以下问题：C++ QUdpSocket::error方法的具体用法？C++ QUdpSocket::error怎么用？C++ QUdpSocket::error使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QUdpSocket的用法示例。
在下文中一共展示了QUdpSocket::error方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: error
void ClientSktUdp::error()
{
QUdpSocket* s = qobject_cast<QUdpSocket*>(sender());
show(QString("UDP socket error %1, %2").arg(s->error()).arg(s->errorString()));
unplug();
}示例2: writeToNonExistingPeer
void tst_QUdpSocket::writeToNonExistingPeer()
{
QSKIP("Connected-mode UDP sockets and their behaviour are erratic", SkipAll);
QFETCH(QHostAddress, peerAddress);
quint16 peerPort = 34534;
qRegisterMetaType<QAbstractSocket::SocketError>("QAbstractSocket::SocketError");
QUdpSocket sConnected;
QSignalSpy sConnectedReadyReadSpy(&sConnected, SIGNAL(readyRead()));
QSignalSpy sConnectedErrorSpy(&sConnected, SIGNAL(error(QAbstractSocket::SocketError)));
sConnected.connectToHost(peerAddress, peerPort, QIODevice::ReadWrite);
// the first write succeeds...
QCOMPARE(sConnected.write("", 1), qint64(1));
// the second one should fail!
QTest::qSleep(1000); // do not process events
QCOMPARE(sConnected.write("", 1), qint64(-1));
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
// the third one will succeed...
QCOMPARE(sConnected.write("", 1), qint64(1));
QTestEventLoop::instance().enterLoop(1);
QCOMPARE(sConnectedReadyReadSpy.count(), 0);
QCOMPARE(sConnectedErrorSpy.count(), 1);
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
// we should now get a read error
QCOMPARE(sConnected.write("", 1), qint64(1));
QTest::qSleep(1000); // do not process events
char buf[2];
QVERIFY(!sConnected.hasPendingDatagrams());
QCOMPARE(sConnected.bytesAvailable(), Q_INT64_C(0));
QCOMPARE(sConnected.pendingDatagramSize(), Q_INT64_C(-1));
QCOMPARE(sConnected.readDatagram(buf, 2), Q_INT64_C(-1));
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
QCOMPARE(sConnected.write("", 1), qint64(1));
QTest::qSleep(1000); // do not process events
QCOMPARE(sConnected.read(buf, 2), Q_INT64_C(0));
QCOMPARE(int(sConnected.error()), int(QUdpSocket::ConnectionRefusedError));
// we should still be connected
QCOMPARE(int(sConnected.state()), int(QUdpSocket::ConnectedState));
}示例3: constructing
void tst_QUdpSocket::constructing()
{
QUdpSocket socket;
QVERIFY(socket.isSequential());
QVERIFY(!socket.isOpen());
QVERIFY(socket.socketType() == QUdpSocket::UdpSocket);
QCOMPARE((int) socket.bytesAvailable(), 0);
QCOMPARE(socket.canReadLine(), false);
QCOMPARE(socket.readLine(), QByteArray());
QCOMPARE(socket.socketDescriptor(), -1);
QCOMPARE(socket.error(), QUdpSocket::UnknownSocketError);
QCOMPARE(socket.errorString(), QString("Unknown error"));
// Check the state of the socket api
}示例4: QFETCH
void tst_QUdpSocket::ipv6Loop()
{
QFETCH(QByteArray, peterMessage);
QFETCH(QByteArray, paulMessage);
QFETCH(bool, success);
QUdpSocket peter;
QUdpSocket paul;
quint16 peterPort = 28124;
quint16 paulPort = 28123;
if (!peter.bind(QHostAddress::LocalHostIPv6, peterPort)) {
QCOMPARE(peter.error(), QUdpSocket::UnsupportedSocketOperationError);
} else {
QVERIFY(paul.bind(QHostAddress::LocalHostIPv6, paulPort));
QCOMPARE(peter.writeDatagram(peterMessage.data(), peterMessage.length(), QHostAddress("::1"),
paulPort), qint64(peterMessage.length()));
QCOMPARE(paul.writeDatagram(paulMessage.data(), paulMessage.length(),
QHostAddress("::1"), peterPort), qint64(paulMessage.length()));
char peterBuffer[16*1024];
char paulBuffer[16*1024];
#if !defined(Q_OS_WINCE)
QVERIFY(peter.waitForReadyRead(5000));
QVERIFY(paul.waitForReadyRead(5000));
#else
QVERIFY(peter.waitForReadyRead(15000));
QVERIFY(paul.waitForReadyRead(15000));
#endif
if (success) {
QCOMPARE(peter.readDatagram(peterBuffer, sizeof(peterBuffer)), qint64(paulMessage.length()));
QCOMPARE(paul.readDatagram(paulBuffer, sizeof(peterBuffer)), qint64(peterMessage.length()));
} else {
QVERIFY(peter.readDatagram(peterBuffer, sizeof(peterBuffer)) != paulMessage.length());
QVERIFY(paul.readDatagram(paulBuffer, sizeof(peterBuffer)) != peterMessage.length());
}
QCOMPARE(QByteArray(peterBuffer, paulMessage.length()), paulMessage);
QCOMPARE(QByteArray(paulBuffer, peterMessage.length()), peterMessage);
}
}示例5: writeDatagram
void tst_QUdpSocket::writeDatagram()
{
QUdpSocket server;
QVERIFY2(server.bind(), server.errorString().toLatin1().constData());
QHostAddress serverAddress = QHostAddress::LocalHost;
if (!(server.localAddress() == QHostAddress::Any))
serverAddress = server.localAddress();
QUdpSocket client;
qRegisterMetaType<qint64>("qint64");
qRegisterMetaType<QAbstractSocket::SocketError>("QAbstractSocket::SocketError");
for(int i=0;; i++) {
QSignalSpy errorspy(&client, SIGNAL(error(QAbstractSocket::SocketError)));
QSignalSpy bytesspy(&client, SIGNAL(bytesWritten(qint64)));
qint64 written = client.writeDatagram(QByteArray(i * 1024, 'w'), serverAddress,
server.localPort());
if (written != i * 1024) {
#if defined (Q_OS_HPUX)
QSKIP("HP-UX 11.11 on hai (PA-RISC 64) truncates too long datagrams.", SkipSingle);
#endif
QCOMPARE(bytesspy.count(), 0);
QCOMPARE(errorspy.count(), 1);
QCOMPARE(*static_cast<const int *>(errorspy.at(0).at(0).constData()),
int(QUdpSocket::DatagramTooLargeError));
QCOMPARE(client.error(), QUdpSocket::DatagramTooLargeError);
break;
}
QVERIFY(bytesspy.count() == 1);
QCOMPARE(*static_cast<const qint64 *>(bytesspy.at(0).at(0).constData()),
qint64(i * 1024));
QCOMPARE(errorspy.count(), 0);
if (!server.waitForReadyRead(5000))
QSKIP(QString("UDP packet lost at size %1, unable to complete the test.").arg(i * 1024).toLatin1().data(), SkipSingle);
QCOMPARE(server.pendingDatagramSize(), qint64(i * 1024));
QCOMPARE(server.readDatagram(0, 0), qint64(0));
}
}