![]() If the address member of the structure specified by name is filled with zeros, the socket will be disconnected. Any datagrams received from an address other than the destination address specified will be discarded. Calling setsockopt while a connection is in progress is not supported.įor a connectionless socket (for example, type SOCK_DGRAM), the operation performed byĬonnect is merely to establish a default destination address that can be used on subsequent If the connection is not completed immediately, the client should wait for connection completion before attempting to set socket options using setsockopt. WSAEventSelect, the notification is announced with FD_CONNECT and the error code associated with the FD_CONNECT indicates either success or a specific reason for failure. Select function, success is reported in the writefds set and failure is reported in the exceptfds set. When the success or failure outcome becomes known, it may be reported in one of two ways, depending on how the client registers for notification. In such a case, this function returns the error Any attempt to reconnect an active connection will fail with the error codeįor connection-oriented, nonblocking sockets, it is often not possible to complete the connection immediately. If the address member of the structure specified by the name parameter is filled with zeros, ![]() When the socket call completes successfully, the socket is ready to send and receive data. The blocking Windows Socket 1.1 call was canceled throughĪ blocking Windows Sockets 1.1 call is in progress, or the service provider is still processing a callback function.Ĭonnect call is in progress on the specified socket. A specific address needs to be implicitly bound by the connect function. This error usually occurs when executingīind, but could be delayed until the connect function if theīind was to a wildcard address ( INADDR_ANY or in6addr_any) for the local IP address. The socket's local address is already in use and the socket was not marked to allow address reuse with SO_REUSEADDR. WSAStartup call must occur before using this function. If the error code returned indicates the connection attempt failed (that is,Ĭonnect again for the same socket. WSAEWOULDBLOCK error values the same way that they handle If they do, they must be prepared to handle As a result, it is not recommended that applications use multiple calls to connect to detect connection completion. Due to ambiguities in version 1.1 of the Windows Sockets specification, error codes returned fromĬonnect while a connection is already pending may vary among implementations. WSAEISCONN when the connection completes successfully. Until the connection attempt completes on a nonblocking socket, all subsequent calls toĬonnect on the same socket will fail with the error code WSAEventSelect to indicate interest in connection events, then the associated event object will be signaled indicating that the WSAAsyncSelect to indicate interest in connection events, then the application will receive an FD_CONNECT notification indicating that theĬonnect operation is complete (successfully or not). Select function to determine the completion of the connection request by checking to see if the socket is writable. In this case, there are three possible scenarios: With a nonblocking socket, the connection attempt cannot be completed immediately. On a blocking socket, the return value indicates success or failure of the connection attempt. Otherwise, it returns SOCKET_ERROR, and a specific error code can be retrieved by calling ![]() The length, in bytes, of the sockaddr structure pointed to by the name parameter. Sockaddr structure to which the connection should be established. Syntax int WSAAPI connect(Ī descriptor identifying an unconnected socket. Connect function establishes a connection to a specified socket.
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