QT Qthread Learning (ii)

Learning Qthread is mainly to imitate the VC under the FTP server to write a QT version. Not much to say,.

　　

The software structure of the FTP server has been explained in the above analysis, the solution today is to let each client process can be a thread to run alone. First, the above 3 classes of CPP file, and then give the phenomenon.

1, Qlistensocket class

1#include"qlistensocket.h"2#include <QTcpSocket>3#include <QDebug>4 5Qlistensocket::qlistensocket (Qobject *parent,intport): Qtcpserver (parent)6 {7 Listen (qhostaddress::localhost,port);8 }9 Ten voidQlistensocket::incomingconnection (intsocketdescriptor) One { AQdebug () <<"A new Client connnected!"; -  -Qcontrolthread *tmp =NewQcontrolthread (Socketdescriptor, This); the clientlist.append (TMP); -  -Tmp->start (); -}

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2, Qcontrolthread class

1 //Thread Constructors2Qcontrolthread::qcontrolthread (qintptr Socketdescriptor,qobject *parent): Qthread (parent)3 {4Qdebug () <<"qcontrolthread Construct Function threadid:"<<Qthread::currentthreadid ();5 6M_controlsocketobj =NewQcontrolsocketobj (Socketdescriptor,0);7 8M_controlsocketobj->movetothread ( This);//move the m_controlsocketobj and its slot functions to this thread to handle9 }Ten  Oneqcontrolthread::~Qcontrolthread () A { -     Deletem_controlsocketobj; -  the quit (); - wait (); - Deletelater (); -}

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3, Qcontrolsocketobj class

1#include"qcontrolsocketobj.h"2#include <QDebug>3#include <QThread>4 5Qcontrolsocketobj::qcontrolsocketobj (qintptr Socketdescriptor,qobject *parent): Qobject (parent)6 {7M_controlsocket =NewQtcpsocket;8M_controlsocket->Setsocketdescriptor (socketdescriptor);9 TenConnect (m_controlsocket,signal (readyread)), This, SLOT (datareceived ())); One  AQdebug () <<"qcontrolsocketobj Construct Function threadid:"<<Qthread::currentthreadid (); - } -  the voidqcontrolsocketobj::d atareceived () - { -Qdebug () <<"qcontrolsocketobj datareceived Function threadid:"<<Qthread::currentthreadid (); -}

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The results appear as follows:

This is the connection of the client, connected to 2 TCP clients, connected to the later, to the server randomly sent some text.

　　

2, the application output results.

　　

The basic idea has been achieved, or there are several places worth noting. The constructor of the Qcontrolthread is executed in the main thread, and the Qcontrolsocketobj constructor is also executed in the main thread.

The official description of Qobject::movetothread is:

Changes the thread affinity for this object and its children. The object cannot is moved if it has a parent. Event processing'll continue in the targetthread.

Both the Qcontrolthread object and the Qcontrolsocketobj object are constructed in the Qlistensocket class, so their constructors are executed in the main thread.

The thread represented by Qthread is the code whose member functions run execution. The default processing for run is to receive and process messages.

QT Qthread Learning (ii)