connected()

bool xtd::net::sockets::socket::connected ( ) const

noexcept

Gets a value that indicates whether a xtd::net::sockets::socket is connected to a remote host as of the last xtd::net::sockets::socket::send or xtd::net::sockets::socket::receive operation.

Returns

true if the xtd::net::sockets::socket was connected to a remote resource as of the most recent operation; otherwise, false.

Remarks

The xtd::net::sockets::socket::connected property gets the connection state of the xtd::net::sockets::socket as of the last I/O operation. When it returns false, the xtd::net::sockets::socket was either never connected, or is no longer connected. xtd::net::sockets::socket::connected is not thread-safe; it may return true after an operation is aborted when the xtd::net::sockets::socket is disconnected from another thread.

The value of the xtd::net::sockets::socket::connected property reflects the state of the connection as of the most recent operation. If you need to determine the current state of the connection, make a nonblocking, zero-byte xtd::net::sockets::socket::send call. If the call returns successfully or throws a WAEWOULDBLOCK error code (10035), then the socket is still connected; otherwise, the socket is no longer connected.

If you call xtd::net::sockets::socket::connect on a User Datagram Protocol (UDP) socket, the xtd::net::sockets::socket::connected property always returns true; however, this action does not change the inherent connectionless nature of UDP.