socket_listen

(PHP 4 >= 4.1.0)

socket_listen -- Listens for a connection on a socket

Description

bool socket_listen ( resource socket [, int backlog])

Varovanie

Táto funkcia je EXPERIMENTÁLNA. Správanie tejto funkcie, meno tejto funkcie a všetko ostatné, čo tu je zdokumentované sa v budúcnosti môže bez ohlásenia zmeniť. Majte to na pamäti a používajte túto funkciu iba na vlastné nebezpečentsvo.

After the socket socket has been created using socket_create() and bound to a name with socket_bind(), it may be told to listen for incoming connections on socket.

A maximum of backlog incoming connections will be queued for processing. If a connection request arrives with the queue full the client may receive an error with an indication of ECONNREFUSED, or, if the underlying protocol supports retransmission, the request may be ignored so that retries may succeed.

Poznámka: The maximum number passed to the backlog parameter highly depends on the underlying platform. On Linux, it is silently truncated to SOMAXCONN. On win32, if passed SOMAXCONN, the underlying service provider responsible for the socket will set the backlog to a maximum reasonable value. There is no standard provision to find out the actual backlog value on this platform.

socket_listen() is applicable only to sockets of type SOCK_STREAM or SOCK_SEQPACKET.

Vráti TRUE pri úspechu, alebo FALSE pri zlyhaní. The error code can be retrieved with socket_last_error(). This code may be passed to socket_strerror() to get a textual explanation of the error.

See also socket_accept(), socket_bind(), socket_connect(), socket_create() and socket_strerror().