Notice: Undefined offset: 1 in /home/developpez/www/developpez-com/upload/qt/doc/redir.php on line 39 Qt 4.7: Q3ServerSocket Class Reference
Viadeo Twitter Google Bookmarks ! Facebook Digg del.icio.us MySpace Yahoo MyWeb Blinklist Netvouz Reddit Simpy StumbleUpon Bookmarks Windows Live Favorites 
Logo Documentation Qt ·  Page d'accueil  ·  Toutes les classes  ·  Toutes les fonctions  ·  Vues d'ensemble  · 

Q3ServerSocket Class Reference

The Q3ServerSocket class provides a TCP-based server. More...

 #include <Q3ServerSocket>

This class is part of the Qt 3 support library. It is provided to keep old source code working. We strongly advise against using it in new code. See Porting to Qt 4 for more information.

Inherits: QObject.

Public Functions

Q3ServerSocket ( Q_UINT16 port, int backlog = 1, QObject * parent = 0, const char * name = 0 )
Q3ServerSocket ( const QHostAddress & address, Q_UINT16 port, int backlog = 1, QObject * parent = 0, const char * name = 0 )
Q3ServerSocket ( QObject * parent = 0, const char * name = 0 )
virtual ~Q3ServerSocket ()
QHostAddress address () const
virtual void newConnection ( int socket ) = 0
bool ok () const
Q_UINT16 port () const
virtual void setSocket ( int socket )
int socket () const
  • 29 public functions inherited from QObject

Protected Functions

Q3SocketDevice * socketDevice ()
  • 7 protected functions inherited from QObject

Additional Inherited Members

  • 1 property inherited from QObject
  • 1 public slot inherited from QObject
  • 1 signal inherited from QObject
  • 5 static public members inherited from QObject

Detailed Description

The Q3ServerSocket class provides a TCP-based server.

This class is a convenience class for accepting incoming TCP connections. You can specify the port or have Q3ServerSocket pick one, and listen on just one address or on all the machine's addresses.

Using the API is very simple: subclass Q3ServerSocket, call the constructor of your choice, and implement newConnection() to handle new incoming connections. There is nothing more to do.

(Note that due to lack of support in the underlying APIs, Q3ServerSocket cannot accept or reject connections conditionally.)

See also Q3Socket, Q3SocketDevice, QHostAddress, and QSocketNotifier.

Member Function Documentation

Q3ServerSocket::Q3ServerSocket ( Q_UINT16 port, int backlog = 1, QObject * parent = 0, const char * name = 0 )

Creates a server socket object, that will serve the given port on all the addresses of this host. If port is 0, Q3ServerSocket will pick a suitable port in a system-dependent manner. Use backlog to specify how many pending connections the server can have.

The parent and name arguments are passed on to the QObject constructor.

Warning: On Tru64 Unix systems a value of 0 for backlog means that you don't accept any connections at all; you should specify a value larger than 0.

Q3ServerSocket::Q3ServerSocket ( const QHostAddress & address, Q_UINT16 port, int backlog = 1, QObject * parent = 0, const char * name = 0 )

Creates a server socket object, that will serve the given port only on the given address. Use backlog to specify how many pending connections the server can have.

The parent and name arguments are passed on to the QObject constructor.

Warning: On Tru64 Unix systems a value of 0 for backlog means that you don't accept any connections at all; you should specify a value larger than 0.

Q3ServerSocket::Q3ServerSocket ( QObject * parent = 0, const char * name = 0 )

Construct an empty server socket.

This constructor, in combination with setSocket(), allows us to use the Q3ServerSocket class as a wrapper for other socket types (e.g. Unix Domain Sockets under Unix).

The parent and name arguments are passed on to the QObject constructor.

See also setSocket().

Q3ServerSocket::~Q3ServerSocket () [virtual]

Destroys the socket.

This causes any backlogged connections (connections that have reached the host, but not yet been completely set up by calling Q3SocketDevice::accept()) to be severed.

Existing connections continue to exist; this only affects the acceptance of new connections.

QHostAddress Q3ServerSocket::address () const

Returns the address on which this object listens, or 0.0.0.0 if this object listens on more than one address. ok() must be true before calling this function.

See also port() and Q3SocketDevice::address().

void Q3ServerSocket::newConnection ( int socket ) [pure virtual]

This pure virtual function is responsible for setting up a new incoming connection. socket is the fd (file descriptor) for the newly accepted connection.

bool Q3ServerSocket::ok () const

Returns true if the construction succeeded; otherwise returns false.

Q_UINT16 Q3ServerSocket::port () const

Returns the port number on which this server socket listens. This is always non-zero; if you specify 0 in the constructor, Q3ServerSocket will pick a non-zero port itself. ok() must be true before calling this function.

See also address() and Q3SocketDevice::port().

void Q3ServerSocket::setSocket ( int socket ) [virtual]

Sets the socket to use socket. bind() and listen() should already have been called for socket.

This allows us to use the Q3ServerSocket class as a wrapper for other socket types (e.g. Unix Domain Sockets).

See also socket().

int Q3ServerSocket::socket () const

Returns the operating system socket.

See also setSocket().

Q3SocketDevice * Q3ServerSocket::socketDevice () [protected]

Returns a pointer to the internal socket device. The returned pointer is 0 if there is no connection or pending connection.

There is normally no need to manipulate the socket device directly since this class does all the necessary setup for most client or server socket applications.

Publicité

Best Of

Actualités les plus lues

Semaine
Mois
Année
  1. « Quelque chose ne va vraiment pas avec les développeurs "modernes" », un développeur à "l'ancienne" critique la multiplication des bibliothèques 64
  2. Apercevoir la troisième dimension ou l'utilisation multithreadée d'OpenGL dans Qt, un article des Qt Quarterly traduit par Guillaume Belz 0
  3. Les développeurs ignorent-ils trop les failles découvertes dans leur code ? Prenez-vous en compte les remarques des autres ? 17
  4. BlackBerry 10 : premières images du prochain OS de RIM qui devrait intégrer des widgets et des tuiles inspirées de Windows Phone 0
  5. Quelles nouveautés de C++11 Visual C++ doit-il rapidement intégrer ? Donnez-nous votre avis 10
  6. Adieu qmake, bienvenue qbs : Qt Building Suite, un outil déclaratif et extensible pour la compilation de projets Qt 17
  7. La rubrique Qt a besoin de vous ! 1
Page suivante

Le Qt Developer Network au hasard

Logo

Comment fermer une application

Le Qt Developer Network est un réseau de développeurs Qt anglophone, où ils peuvent partager leur expérience sur le framework. Lire l'article.

Communauté

Ressources

Liens utiles

Contact

  • Vous souhaitez rejoindre la rédaction ou proposer un tutoriel, une traduction, une question... ? Postez dans le forum Contribuez ou contactez-nous par MP ou par email (voir en bas de page).

Qt dans le magazine

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia. Qt 4.7
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !
 
 
 
 
Partenaires

Hébergement Web