QCoapQUdpConnection Class
The QCoapQUdpConnection class handles the transfer of frames to and from a server. More...
Header: | #include <QCoapQUdpConnection> |
Inherits: | QCoapConnection |
Public Functions
QCoapQUdpConnection(QtCoap::SecurityMode securityMode = QtCoap::SecurityMode::NoSecurity, QObject *parent = nullptr) | |
QUdpSocket * | socket() const |
Public Slots
void | setSocketOption(QAbstractSocket::SocketOption option, const QVariant &value) |
Protected Functions
QCoapQUdpConnection(QCoapQUdpConnectionPrivate &dd, QObject *parent = nullptr) | |
void | createSocket() |
Reimplemented Protected Functions
virtual void | bind(const QString &host, quint16 port) override |
virtual void | close() override |
virtual void | writeData(const QByteArray &data, const QString &host, quint16 port) override |
Detailed Description
\internal
\inmodule
QtCoap
\reentrant
The QCoapQUdpConnection class is used by the QCoapClient class to send requests to a server. It has a socket listening for UDP messages, that is used to send the CoAP frames.
When a reply is available, the QCoapQUdpConnection object emits a readyRead() signal.
See also QCoapClient.
Member Function Documentation
[explicit]
QCoapQUdpConnection::QCoapQUdpConnection(QtCoap::SecurityMode securityMode = QtCoap::SecurityMode::NoSecurity, QObject *parent = nullptr)
Constructs a new QCoapQUdpConnection for the given securityMode and sets parent as the parent object.
Note: Since QtCoap::RawPublicKey is not supported yet, the connection will fall back to the QtCoap::NoSecurity in the QtCoap::RawPublicKey mode. That is, the connection won't be secure in this mode.
[explicit protected]
QCoapQUdpConnection::QCoapQUdpConnection(QCoapQUdpConnectionPrivate &dd, QObject *parent = nullptr)
\internal
Constructs a new QCoapQUdpConnection as a child of parent, with dd as its d_ptr
. This constructor must be used when internally subclassing the QCoapQUdpConnection class.
[override virtual protected]
void QCoapQUdpConnection::bind(const QString &host, quint16 port)
\internal
Prepares the socket for data transmission to the given host and port by binding the socket. In case of a secure connection also starts the handshake with the server. Emits the bound() signal when the transport is ready.
[override virtual protected]
void QCoapQUdpConnection::close()
\internal
Close the UDP socket
In the case of a secure connection, this also interrupts any ongoing hand-shake and shuts down the DTLS connection.
[protected]
void QCoapQUdpConnection::createSocket()
\internal
Creates the socket used by the connection and sets it in connection's private class.
[slot]
void QCoapQUdpConnection::setSocketOption(QAbstractSocket::SocketOption option, const QVariant &value)
\internal
Sets the QUdpSocket socket option to value.
QUdpSocket *QCoapQUdpConnection::socket() const
\internal
Returns the socket.
[override virtual protected]
void QCoapQUdpConnection::writeData(const QByteArray &data, const QString &host, quint16 port)
\internal
Sends the given data frame to the host at the port.