TDI_DATAGRAM_INFO

typedef struct _TDI_DATAGRAM_INFO { 
    ULONG  MaximumDatagramBytes; 
    ULONG  MaximumDatagramCount; 
} TDI_DATAGRAM_INFO, *PTDI_DATAGRAM_INFO; 
 

TDI_DATAGRAM_INFO defines the structure of the information returned for a TDI_QUERY_INFORMATION request in which the IrpSp->Parameters.QueryType is set to TDI_QUERY_DATAGRAM_INFO.

Members

MaximumDatagramBytes

Specifies the maximum size in bytes for a datagram.

MaximumDatagramCount

Specifies the maximum number of active datagrams.

Comments

Any kernel-mode client that has opened a control channel can make a query to determine the transport's limits on datagram size and activity. Such a client sets up an IRP with TdiBuildQueryInformation, passing in the QType TDI_QUERY_DATAGRAM_INFO, and submits the IRP to the underlying transport to get this information.

A transport also can support this query on open transport addresses at the discretion of the transport writer.

TDI_DATAGRAM_INFO defines the format in which the transport returns the requested information for such a query.

See Also

TdiBuildQueryInformation, TdiDispatchInternalDeviceControl, TDI_MAX_DATAGRAM_INFO, TDI_QUERY_INFORMATION, TDI_PROVIDER_INFO, TRANSPORT_ADDRESS