The Q3ServerSocket 类提供基于 TCP 的服务器。 更多...
| 头： | #include <Q3ServerSocket> |
| 继承： | QObject |
| 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 |
| Q3SocketDevice * | socketDevice () |
The Q3ServerSocket 类提供基于 TCP 的服务器。
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.)
另请参阅 Q3Socket , Q3SocketDevice , QHostAddress ，和 QSocketNotifier .
Creates a server socket object, that will serve the given port on all the addresses of this host. If port 为 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 构造函数。
警告： 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.
Creates a server socket object, that will serve the given port only on the given address 。使用 backlog to specify how many pending connections the server can have.
The parent and name arguments are passed on to the QObject 构造函数。
警告： 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.
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 构造函数。
另请参阅 setSocket ().
[虚拟]
Q3ServerSocket::
~Q3ServerSocket
()
销毁套接字。
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.
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.
另请参阅 port () 和 Q3SocketDevice::address ().
[pure virtual]
void
Q3ServerSocket::
newConnection
(
int
socket
)
This pure virtual function is responsible for setting up a new incoming connection. socket is the fd (file descriptor) for the newly accepted connection.
Returns true if the construction succeeded; otherwise returns false.
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.
另请参阅 address () 和 Q3SocketDevice::port ().
[虚拟]
void
Q3ServerSocket::
setSocket
(
int
socket
)
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).
另请参阅 socket ().
Returns the operating system socket.
另请参阅 setSocket ().
[protected]
Q3SocketDevice
* Q3ServerSocket::
socketDevice
()
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.