QKnxNetIpCriProxy Class

The QKnxNetIpCriProxy class provides the means to read the connection request information (CRI) from the generic QKnxNetIpCri class and to create a KNXnet/IP CRI structure based on the information. 更多...

头：	#include <QKnxNetIpCriProxy>
qmake:	QT += knx

所有成员列表，包括继承成员

公共类型

class

Builder

公共函数

	QKnxNetIpCriProxy (const QKnxNetIpCri & cri )
QKnxByteArray	additionalData () const
QKnxNetIp::ConnectionType	connectionType () const
QKnxAddress	individualAddress () const
bool	isExtended () const
bool	isValid () const
QKnxNetIp::TunnelLayer	tunnelLayer () const

静态公共成员

QKnxNetIpCriProxy::Builder

builder ()

详细描述

A KNXnet/IP CRI structure contains additional information needed for different types of communication channels to fulfill a connection request.

The structure may contain host protocol dependent and independent data, but the current KNX specification foresees additional data only in the case of tunneling.

注意： When using QKnxNetIpCriProxy, care must be taken to ensure that the referenced KNXnet/IP CRI structure outlives the proxy on all code paths, lest the proxy ends up referencing deleted data.

Reading the connection type and tunneling layer can be achieved like this:

auto cri = QKnxNetIpCri::fromBytes(...);
QKnxNetIpCriProxy proxy(cri);
if (!proxy.isValid())
    return;
if (proxy.connectionType() != QKnxNetIp::ConnectionType::Tunnel)
    return;
auto layer = proxy.tunnelLayer(); // read the requested tunneling layer

另请参阅 builder () 和 Qt KNXnet/IP Connection Classes .

成员函数文档编制

QKnxNetIpCriProxy:: QKnxNetIpCriProxy (const QKnxNetIpCri & cri )

Constructs a proxy object with the specified a KNXnet/IP structure cri to read the connection request information (CRI).

QKnxByteArray QKnxNetIpCriProxy:: additionalData () const

Returns the additional data of this KNXnet/IP structure.

The current KNX specification foresees additional data only in the case of tunneling.

另请参阅 tunnelLayer () 和 individualAddress ().

`[static]` QKnxNetIpCriProxy::Builder QKnxNetIpCriProxy:: builder ()

Returns a builder object to create a KNXnet/IP connection request information structure.

QKnxNetIp::ConnectionType QKnxNetIpCriProxy:: connectionType () const

Returns the connection type of this KNXnet/IP structure if the object that was passed during construction was valid; otherwise returns QKnx::NetIp::Unknown .

QKnxAddress QKnxNetIpCriProxy:: individualAddress () const

Returns the individual address of the extended connection request information structure if the object that was passed during construction was valid and an extended structure; otherwise returns QKnx::NetIp::Unknown .

该函数在 Qt 5.12 引入。

另请参阅 isExtended (), tunnelLayer ()，和 additionalData ().

bool QKnxNetIpCriProxy:: isExtended () const

返回 true if this is an extended connection request information (CRI) frame; otherwise returns false .

注意： No validation checks are performed on the given KNXnet/IP frame that was passed during construction.

该函数在 Qt 5.12 引入。

另请参阅 isValid ().

bool QKnxNetIpCriProxy:: isValid () const

返回 true if the KNXnet/IP structure to create the object is a valid KNXnet/IP CRI structure; otherwise returns false .

QKnxNetIp::TunnelLayer QKnxNetIpCriProxy:: tunnelLayer () const

Returns the tunneling layer of this KNXnet/IP structure if the object that was passed during construction was valid and the connection type is QKnx::NetIp::Tunnel ，否则返回 QKnx::NetIp::Unknown .

另请参阅 additionalData () 和 individualAddress ().