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Windows Driver Kit DDI reference (ns-wsk-_wsk_socket)

_WSK_SOCKET structure

Description

The WSK_SOCKET structure defines a socket object for a socket.

Members

`Dispatch`

A pointer to a constant provider dispatch structure. This structure is a dispatch table that contains pointers to a socket's functions. Depending on the WSK socket category of the socket, this pointer is a pointer to one of the following structures:

Socket category	Dispatch table structure
Basic socket	WSK_PROVIDER_BASIC_DISPATCH
Listening socket	WSK_PROVIDER_LISTEN_DISPATCH
Datagram socket	WSK_PROVIDER_DATAGRAM_DISPATCH
Connection-oriented socket	WSK_PROVIDER_CONNECTION_DISPATCH
Stream socket	WSK_PROVIDER_STREAM_DISPATCH

Remarks

The WSK subsystem allocates and fills in a WSK_SOCKET structure whenever a new socket is created. A WSK application receives a pointer to the WSK_SOCKET structure for a socket from the WSK subsystem in one of the following ways:

The WSK application calls the WskSocket function to create a socket.
The WSK application calls the WskSocketConnect function to create, bind, and connect a connection-oriented socket.
The WSK application calls the WskAccept function to accept an incoming connection-oriented socket on a listening socket.
The WSK subsystem calls the WSK application's WskAcceptEvent event callback function to notify the WSK application that an incoming connection-oriented socket has been accepted on a listening socket.

A WSK application passes the pointer to a socket's WSK_SOCKET structure when calling any of the socket's functions.

The WSK subsystem frees the memory for the WSK_SOCKET structure when the WSK application calls the WskCloseSocket function to close the socket.

WSK_SOCKET - NtDoc