C++ (Cpp) QTcpServer::socketDescriptor Examples

Example #1

File: tst_qtcpserver.cpp Project: husninazer/qt

void tst_QTcpServer::constructing()
{
    QTcpServer socket;

    // Check the initial state of the QTcpSocket.
    QCOMPARE(socket.isListening(), false);
    QCOMPARE((int)socket.serverPort(), 0);
    QCOMPARE(socket.serverAddress(), QHostAddress());
    QCOMPARE(socket.maxPendingConnections(), 30);
    QCOMPARE(socket.hasPendingConnections(), false);
    QCOMPARE(socket.socketDescriptor(), -1);
    QCOMPARE(socket.serverError(), QAbstractSocket::UnknownSocketError);

    // Check the state of the socket layer?
}

Example #2

File: servermanager_unix.cpp Project: pivaldi/TreeFrog

int ServerManager::createListeningSocket(const QHostAddress &address, quint16 port)
{
    int sd = 0;
    QTcpServer server;

    if (!server.listen(address, port)) {
        qCritical("listen failed");
        return sd;
    }

    sd = ::fcntl(server.socketDescriptor(), F_DUPFD, 0);
#if defined(FD_CLOEXEC)
    ::fcntl(sd, F_SETFD, 0);
#endif
    server.close();
    return sd;
}

Example #3

File: tapplicationserverbase_unix.cpp Project: AbhimanyuAryan/treefrog-framework

/*!
  Listen a port for connections on a socket.
  This function must be called in a tfmanager process.
 */
int TApplicationServerBase::nativeListen(const QHostAddress &address, quint16 port, OpenFlag flag)
{
    int sd = 0;
    QTcpServer server;

    if (!server.listen(address, port)) {
        tSystemError("Listen failed  port:%d", port);
        return sd;
    }

    sd = duplicateSocket(server.socketDescriptor()); // duplicate

    if (flag == CloseOnExec) {
        ::fcntl(sd, F_SETFD, ::fcntl(sd, F_GETFD) | FD_CLOEXEC);
    } else {
        ::fcntl(sd, F_SETFD, 0);  // clear
    }
    ::fcntl(sd, F_SETFL, ::fcntl(sd, F_GETFL) | O_NONBLOCK);  // non-block

    server.close();
    return sd;
}