HP-UX SNAplus2 R7 LUA Programmer's Guide

LUA VCB Structure
LUA Verb Control Block (VCB) Format
The LU name used by the LUA session (in ASCII). This can be an LU name or an LU pool name; for more
information, see Section 4.2,
RUI_INIT or Section 5.3, SLI_OPEN.
UNIX
For RUI_INIT_PRIMARY, this must match the dslu_name parameter of a downstream LU configured for use
with PU Concentration (or a downstream LU created implicitly by defining a downstream LU template).
lua_extension_list_offset
This field is reserved.
lua_cobol_offset
This field is reserved.
lua_sid
The session ID of the LUA session on which this verb is issued.
lua_max_length
The length of the buffer supplied to RUI_READ, RUI_INIT_PRIMARY, or SLI_RECEIVE to receive data,
or the total length of a waiting RU returned to RUI_BID.
lua_data_length
The length of the data to be sent, or the actual length of data received.
lua_data_ptr
A pointer to the data to be sent, or the data buffer to receive data.
lua_post_handle
UNIX
A pointer to a callback routine that LUA will call to indicate completion if the verb completes asynchronously.
WINDOWS
If the VCB is used in an RUI or SLI function call, set this field to an event handle. If the VCB is used in a
WinRUI or WinSLI function call, this field is reserved.
lua_th
A data structure containing the TH (transmission header) of the message sent or received, as follows:
lua_th.flags_fid
Format Identification type 2: 4 bits
lua_th.flags_mpf
Segmenting mapping field: 2 bits
lua_th.flags_odai
Origin Address Field-Destination Address Field (OAF-DAF) Assignor Indicator
lua_th.flags_efi
Expedited Flow Indicator
lua_th.daf
DAF (Destination address field)
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