The CCB_PARMS union represents the DLC parameter table. You can present the parameter table as a pointer to a structure, two USHORT values, an array of four UCHAR values, or a single ULONG value. You pass a pointer to this structure to the AcsLan function, through the u member of the LLC_CCB structure.
typedef union { PLLC_PARMS pParameterTable; struct { USHORT usStationId; USHORT usParameter; } dlc; struct { USHORT usParameter0; USHORT usParameter1; } dir; UCHAR auchBuffer[4]; ULONG ulParameter; } CCB_PARMS;
Command |
Parameter Table |
LLC_BUFFER_CREATE | |
LLC_BUFFER_FREE | |
LLC_BUFFER_GET | |
LLC_DIR_INITIALIZE | |
LLC_DIR_OPEN_ADAPTER | |
LLC_DIR_OPEN_DIRECT | |
LLC_DIR_READ_LOG | |
LLC_DIR_SET_EXCEPTION_FLAGS | |
LLC_DIR_SET_MULTICAST_ADDRESS | |
LLC_DIR_STATUS | |
LLC_DLC_CONNECT_STATION | |
LLC_DLC_MODIFY | |
LLC_DLC_OPEN_SAP | |
LLC_DLC_OPEN_STATION | |
LLC_DLC_REALLOCATE_STATIONS | |
LLC_DLC_SET_THRESHOLD | |
LLC_DLC_STATISTICS | |
LLC_READ | |
LLC_RECEIVE | |
LLC_TRANSMIT_DIR_FRAME | |
LLC_TRANSMIT_I_FRAME | |
LLC_TRANSMIT_TEST_CMD | |
LLC_TRANSMIT_UI_FRAME | |
LLC_TRANSMIT_XID_CMD | |
LLC_TRANSMIT_XID_RESP_FINAL | |
LLC_TRANSMIT_XID_RESP_NOT_FINAL |
The following table shows how the usStationId, usParameter, usParameter0, usParameter1, auchBuffer, and ulParameter members are used by the commands whose parameter tables are not represented by a unique LLC_PARMS structure.
Command |
Parameter Table |
LLC_DIR_SET_FUNCTIONAL_ADDRESS |
usParameter0 and usParameter1 contain the address to be set or reset. |
LLC_DIR_SET_GROUP_ADDRESS |
usParameter0 contains the group address to be set. |
LLC_DIR_TIMER_CANCEL |
usParameter0 and usParameter1 contain the address of the timer to be canceled. |
LLC_DIR_TIMER_CANCEL_GROUP |
usParameter0 and usParameter1 contain the timer completion flag. |
LLC_DIR_TIMER_SET |
usParameter0 contains the timer value. |
LLC_DLC_CLOSE_SAP |
usStationId contains the station identifier of the SAP to be closed and usParameter receives the station identifier of any link station on the SAP that is not closed. |
LLC_DLC_CLOSE_STATION |
usStationId contains the station identifier of the station to be closed. |
LLC_DLC_FLOW_CONTROL |
usStationId contains the station identifier and usParameter specifies one of the following options:
LLC_RESET_LOCAL_BUSY_USER |
LLC_DLC_RESET |
usStationId contains the station identifier of the station to be reset. A value of zero defines all SAPs and all link stations. A value of 0xnn00 defines SAP nn and all its link stations. |
LLC_READ_CANCEL |
ulParameter contains the address of the command control block of the read command to be canceled. |
LLC_RECEIVE_CANCEL |
usStationId contains the station identifier of the SAP or link station of a pending LLC_RECEIVE command that is to be canceled. |
LLC_RECEIVE_MODIFY |
usStationId contains the station identifier and usParameter specifies the length of the user data in the buffers. |
If an LLC_READ command is pending that requests notification of data to be received, the cancellation of the LLC_RECEIVE command does not affect the LLC_READ command. After the LLC_RECEIVE_CANCEL command completes, the pNext member of the LLC_CCB structure contains the address of the canceled LLC_RECEIVE command.
AcsLan, LLC_BUFFER_CREATE_PARMS, LLC_BUFFER_FREE_PARMS, LLC_BUFFER_GET_PARMS, LLC_CCB, LLC_DIR_INITIALIZE_PARMS, LLC_DIR_OPEN_ADAPTER_PARMS, LLC_DIR_OPEN_DIRECT_PARMS, LLC_DIR_READ_LOG_PARMS, LLC_DIR_SET_EFLAG_PARMS, LLC_DIR_MULTICAST_ADDRESS, LLC_DIR_STATUS_PARMS, LLC_DLC_CONNECT_PARMS, LLC_DLC_MODIFY_PARMS, LLC_DLC_OPEN_SAP_PARMS, LLC_DLC_OPEN_STATION_PARMS, LLC_DLC_REALLOCATE_PARMS, LLC_DLC_SET_THRESHOLD_PARMS, LLC_DLC_STATISTICS_PARMS, LLC_READ_PARMS, LLC_RECEIVE_PARMS, LLC_TRANSMIT_PARMS
file: /Techref/os/win/api/win32/struc/src/str01_10.htm, 13KB, , updated: 2000/4/7 11:20, local time: 2024/11/7 18:26,
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