The LLC_RECEIVE_PARMS structure is the DLC parameter table for the LLC_RECEIVE command. You pass a pointer to this structure using the pParameterTable member of the CCB_PARMS union.
typedef struct { USHORT usStationId; USHORT usUserLength; ULONG ulReceiveFlag; PLLC_BUFFER pFirstBuffer; UCHAR uchOptions; UCHAR auchReserved1[3]; UCHAR uchRcvReadOption; } LLC_RECEIVE_PARMS, *PLLC_RECEIVE_PARMS;
Option |
Description |
LLC_CONTIGUOUS_MAC |
Contiguous MAC. Used only with MAC frames. |
LLC_CONTIGUOUS_DATA |
Contiguous data. Only used with non-MAC frames. The system places the entire frame in the first buffer. |
LLC_NOT_CONTIGUOUS_DATA |
The first data received is placed in the second buffer. The first buffer contains only the header data. |
Option |
Description |
LLC_RCV_READ_INDIVIDUAL_FRAMES |
The frames are not chained. Use an LLC_READ command to retrieve each frame. |
LLC_RCV_CHAIN_FRAMES_ON_LINK |
The frames received for a link station are chained. You can use a single LLC_READ command to retrieve all chained frames. |
LLC_RCV_CHAIN_FRAMES_ON_SAP |
The frames received for a SAP are chained. You can use a single LLC_READ command to retrieve all chained frames. |
If LLC_RECEIVE commands have been issued for link stations, the options specified for the link station’s LLC_RECEIVE command determine how received data is chained. If a link station has a pending LLC_RECEIVE command specifying that its received frames should be chained on a link station basis, its frames will not be chained together with the SAP’s frames. All link stations that do not have an LLC_RECEIVE command pending will have their received frames chained as specified by the SAP’s LLC_RECEIVE command. If neither the SAP nor the link station have an LLC_RECEIVE command pending, the direct station is used.
The uchRcvReadOption member of a SAP’s LLC_RECEIVE command is used to determine how data that the link station receives for the SAP is chained when its link stations do not have LLC_RECEIVE commands outstanding.
LLC_READ commands must match the LLC_RECEIVE commands uchRcvReadOption settings.
file: /Techref/os/win/api/win32/struc/src/str09_57.htm, 4KB, , updated: 2000/4/7 12:20, local time: 2024/8/18 03:32,
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