RIO_EXTENSION_FUNCTION_TABLE structure
The RIO_EXTENSION_FUNCTION_TABLE structure contains information on the functions that implement the Winsock registered I/O extensions.
Syntax
typedef struct _RIO_EXTENSION_FUNCTION_TABLE { DWORD cbSize; LPFN_RIORECEIVE RIOReceive; LPFN_RIORECEIVEEX RIOReceiveEx; LPFN_RIOSEND RIOSend; LPFN_RIOSENDEX RIOSendEx; LPFN_RIOCLOSECOMPLETIONQUEUE RIOCloseCompletionQueue; LPFN_RIOCREATECOMPLETIONQUEUE RIOCreateCompletionQueue; LPFN_RIOCREATEREQUESTQUEUE RIOCreateRequestQueue; LPFN_RIODEQUEUECOMPLETION RIODequeueCompletion; LPFN_RIODEREGISTERBUFFER RIODeregisterBuffer; LPFN_RIONOTIFY RIONotify; LPFN_RIOREGISTERBUFFER RIORegisterBuffer; LPFN_RIORESIZECOMPLETIONQUEUE RIOResizeCompletionQueue; LPFN_RIORESIZEREQUESTQUEUE RIOResizeRequestQueue; } RIO_EXTENSION_FUNCTION_TABLE, *PRIO_EXTENSION_FUNCTION_TABLE;
Members
- cbSize
-
The size, in bytes, of the structure.
- RIOReceive
-
A pointer to the RIOReceive function.
- RIOReceiveEx
-
A pointer to the RIOReceiveEx function.
- RIOSend
-
A pointer to the RIOSend function.
- RIOSendEx
-
A pointer to the RIOSendEx function.
- RIOCloseCompletionQueue
-
A pointer to the RIOCloseCompletionQueue function.
- RIOCreateCompletionQueue
-
A pointer to the RIOCreateCompletionQueue function.
- RIOCreateRequestQueue
-
A pointer to the RIOCreateRequestQueue function.
- RIODequeueCompletion
-
A pointer to the RIODequeueCompletion function.
- RIODeregisterBuffer
-
A pointer to the RIODeregisterBuffer function.
- RIONotify
-
A pointer to the RIONotify function.
- RIORegisterBuffer
-
A pointer to the RIORegisterBuffer function.
- RIOResizeCompletionQueue
-
A pointer to the RIOResizeCompletionQueue function.
- RIOResizeRequestQueue
-
A pointer to the RIOResizeRequestQueue function.
Remarks
The RIO_EXTENSION_FUNCTION_TABLE structure contains information on the functions that implement the Winsock registered I/O extensions.
The function pointers for the Winsock registered I/O extension functions must be obtained at run time by making a call to the WSAIoctl function with the SIO_GET_MULTIPLE_EXTENSION_FUNCTION_POINTER opcode specified. The input buffer passed to the WSAIoctl function must contain WSAID_MULTIPLE_RIO, a globally unique identifier (GUID) whose value identifies the Winsock registered I/O extension functions. On success, the output returned by the WSAIoctl function contains a pointer to the RIO_EXTENSION_FUNCTION_TABLE structure that contains pointers to the Winsock registered I/O extension functions. The SIO_GET_MULTIPLE_EXTENSION_FUNCTION_POINTER IOCTL is defined in the Ws2def.h header file.The WSAID_MULTIPLE_RIO GUID is defined in the Mswsock.h header file.
Requirements
|
Minimum supported client |
Windows 8 [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2012 [desktop apps only] |
|
Header |
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See also
- RIOCloseCompletionQueue
- RIOCreateCompletionQueue
- RIOCreateRequestQueue
- RIODequeueCompletion
- RIODeregisterBuffer
- RIONotify
- RIOReceive
- RIOReceiveEx
- RIORegisterBuffer
- RIOResizeCompletionQueue
- RIOResizeRequestQueue
- RIOSend
- RIOSendEx
- WSAIoctl