QKnxNetIpDisconnectResponseProxy Class

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

头：	#include <QKnxNetIpDisconnectResponseProxy>
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

	QKnxNetIpDisconnectResponseProxy (const QKnxNetIpFrame & frame )
quint8	channelId () const
bool	isValid () const
QKnxNetIp::Error	status () const

静态公共成员

QKnxNetIpDisconnectResponseProxy::Builder

builder ()

详细描述

A KNXnet/IP device terminates a data channel connection by sending a disconnection request to its communication partner's control endpoint. The KNXnet/IP device receiving the disconnection request acknowledges the operation with a KNXnet/IP disconnection response frame, which signals the final termination of a 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 QKnxNetIpDisconnectResponseProxy, 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 disconnection response information sent by a KNXnet/IP client:

auto netIpFrame = QKnxNetIpFrame::fromBytes(...);
const QKnxNetIpDisconnectResponseProxy proxy(netIpFrame);
if (!proxy.isValid())
    return;
quint8 chanId = proxy.channelId();
QKnx::NetIp::Error state = proxy.status();

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

成员函数文档编制

QKnxNetIpDisconnectResponseProxy:: QKnxNetIpDisconnectResponseProxy (const QKnxNetIpFrame & frame )

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

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

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

quint8 QKnxNetIpDisconnectResponseProxy:: channelId () const

Returns the ID of the communication channel between a KNXnet/IP client and server.

bool QKnxNetIpDisconnectResponseProxy:: 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 ().

QKnxNetIp::Error QKnxNetIpDisconnectResponseProxy:: status () const

Returns the status of the communication channel between a KNXnet/IP client and server.