QKnxNetIpConnectResponseProxy Class

The QKnxNetIpConnectResponseProxy class provides the means to read a connection response from the generic QKnxNetIpFrame class and to create a KNXnet/IP frame based on the information. 更多...

头：	#include <QKnxNetIpConnectResponseProxy>
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

	QKnxNetIpConnectResponseProxy (const QKnxNetIpFrame & frame )
quint8	channelId () const
QKnxNetIpHpai	dataEndpoint () const
bool	isValid () const
QKnxNetIpCrd	responseData () const
QKnxNetIp::Error	status () const

静态公共成员

QKnxNetIpConnectResponseProxy::Builder

builder ()

详细描述

A connection response frame is sent by a KNXnet/IP server in response to a connection request received from a KNXnet/IP client. The connection response provides the status of the request. If the server accepted the request, the frame also contains the identifier and host address protocol information (HPAI) of the data endpoint that the server prepared for the communication channel.

In most programs, this class will not be used directly. Instead, the QKnxNetIpTunnel or QKnxNetIpDeviceManagement class is used to establish a functional connection to a KNXnet/IP server.

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

The following code sample illustrates how to read the connection response information sent by a KNXnet/IP server:

auto netIpFrame = QKnxNetIpFrame::fromBytes(...);
const QKnxNetIpConnectResponseProxy proxy(netIpFrame);
if (!proxy.isValid())
    return;
auto chanId = proxy.channelId();
auto data = proxy.responseData();
auto endPoint = proxy.dataEndpoint();
auto netIpError = proxy.status();

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

成员函数文档编制

QKnxNetIpConnectResponseProxy:: QKnxNetIpConnectResponseProxy (const QKnxNetIpFrame & frame )

Constructs a proxy object to read the connection response information carried by the specified KNXnet/IP frame frame .

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

Returns a builder object to create a KNXnet/IP connection response frame.

quint8 QKnxNetIpConnectResponseProxy:: channelId () const

Returns the ID of the communication channel prepared by the KNXnet/IP server.

QKnxNetIpHpai QKnxNetIpConnectResponseProxy:: dataEndpoint () const

Returns the data endpoint of the KNXnet/IP server.

bool QKnxNetIpConnectResponseProxy:: isValid () const

返回 true if the frame contains initialized values and is in itself valid, otherwise returns false . A valid KNXnet/IP frame consists of at least a valid header and a size in bytes corresponding to the total size of the KNXnet/IP frame header.

另请参阅 QKnxNetIpFrameHeader::totalSize ().

QKnxNetIpCrd QKnxNetIpConnectResponseProxy:: responseData () const

Returns a connection response data (CRD) structure from the KNXnet/IP connection request frame.

QKnxNetIp::Error QKnxNetIpConnectResponseProxy:: status () const

Returns the status of the connection request received from a KNXnet/IP client.

另请参阅 QKnxNetIpConnectRequestProxy .