C++ (Cpp) qt_socket_listen Examples

Example #1

bool QNativeSocketEnginePrivate::nativeListen(int backlog)
{
    if (qt_socket_listen(socketDescriptor, backlog) < 0) {
        switch (errno) {
        case EADDRINUSE:
            setError(QAbstractSocket::AddressInUseError,
                     PortInuseErrorString);
            break;
        default:
            break;
        }

#if defined (QNATIVESOCKETENGINE_DEBUG)
        qDebug("QNativeSocketEnginePrivate::nativeListen(%i) == false (%s)",
               backlog, socketErrorString.toLatin1().constData());
#endif
        return false;
    }

#if defined (QNATIVESOCKETENGINE_DEBUG)
    qDebug("QNativeSocketEnginePrivate::nativeListen(%i) == true", backlog);
#endif

    socketState = QAbstractSocket::ListeningState;
    return true;
}

Example #2

/*!
    Specifies how many pending connections a server socket can have.
    Returns true if the operation was successful; otherwise returns
    false. A \a backlog value of 50 is quite common.

    The listen() call only applies to sockets where type() is \c
    Stream, i.e. not to \c Datagram sockets. listen() must not be
    called before bind() or after accept().

    \sa bind(), accept()
*/
bool MSocketDevice::listen( int backlog )
{
    if ( !isValid() )
	return false;
    if ( qt_socket_listen( fd, backlog ) >= 0 )
	return true;
    if ( !e )
	e = Impossible;
    return false;
}