SNAX/HLS Management Programming Manual

Standard SNAX/HLS Definitions
Common Definitions
104708 Tandem Computers Incorporated 6–45
ZHLS–VAL–FSM–CHAIN–PURGE
indicates that the remainder of the current chain is being discarded. This
purging ceases when the end chain indicator (ECI) is detected. This condition
occurs only on the receive data flow.
ZFSM–CBSM–RSP
reports the SNAX/HLS implementation of FSM_CONTROL_BSM_RSP. This
finite state machine (FSM) controls the responses to brackets. It is employed to
pass signals to the bracket state manager when a response to the current chain is
detected. Note that when this field appears in ZHLS–MAP–STATUS–SESS–SEND,
it reports the processing of received responses; with
ZHLS–MAP–STATUS–SESS–RECV, it reports the processing of sent responses.
This field can have the following enumerated values:
ZHLS–VAL–FSM–CBSM–RSP–INC
indicates that a user message (SNA chain) is being processed.
ZHLS–VAL–FSM–CBSM–RSP–NEG–SEEN
indicates that a negative response to the current chain is being processed and
the bracket state manager is being called with the negative response as input.
This value should never be visible to requesters; it is an internal state only.
ZHLS–VAL–FSM–CBSM–RSP–NULL
indicates that this FSM is not yet initialized or is not used in the current
session.
ZHLS–VAL–FSM–CBSM–RSP–RESET
indicates that no user message (SNA chain) is in progress.
ZFSM–CHDX–RSP
reports the SNAX/HLS implementation of FSM_CONTROL_HDX_RSP. This FSM
controls the interaction between bracket responses and the half–duplex controls. It
is employed to pass responses to the send state manager or receive state manager
when a response to the current chain is processed.
This field can have the following enumerated values:
ZHLS–VAL–FSM–CHDX–RSP–INC
indicates that a user message (SNA chain) is currently being processed.