Status-Control(...) ACKLUA
The Status-Control(...) ACKLUA message is for LUA applications only. It flows from the node to the application, and is used with a PLU connection.
struct Status-Control(...) ACKLUA {
PTRBFHDR nxtqptr;
PTRBFELT hdreptr;
CHAR numelts;
CHAR msgtype;
CHAR srcl;
CHAR srcp;
INTEGER srci;
CHAR destl;
CHAR destp;
INTEGER desti;
CHAR sfhdr.stctlhdr.ctlstat;
CHAR sfhdr.stctlhdr.ctlqual;
CHAR sfhdr.stctlthdr.ctltype
CHAR sfhdr.stctlhdr.ctlack;
CHAR sfhdr.stctlhdr.ctlflag1;
CHAR sfhdr.stctlhdr.ctlflag2;
INTEGER sfhdr.stctlhdr.ctlnumb1;
INTEGER sfhdr.stctlhdr.ctlnumb2;
INTEGER sfhdr.stctlhdr.ctlmsgk;
};
Members
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nxtqptr
-
Pointer to next buffer header.
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hdreptr
-
Pointer to buffer element (NIL).
-
numelts
-
Number of buffer elements (0x00).
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msgtype
-
Message type STATFMI (0x21).
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srcl
-
Source locality.
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srcp
-
Source partner.
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srci
-
Source index.
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destl
-
Destination locality.
-
destp
-
Destination partner.
-
desti
-
Destination index.
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sfhdr.stctlhdr.ctlstat
-
Status type STCNTRL (0x02).
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sfhdr.stctlhdr.ctlqual
-
Control qualifier ACKLUA (0x05).
-
sfhdr.stctlhdr.ctltype
-
Control type.
-
sfhdr.stctlhdr.ctlack
-
Reserved.
-
sfhdr.stctlhdr.ctlflag1
-
Application flag 1.
-
sfhdr.stctlhdr.ctlflag2
-
Application flag 2.
-
sfhdr.stctlhdr.ctlnumb1
-
Code 1.
-
sfhdr.stctlhdr.ctlnumb2
-
Code 2.
-
sfhdr.stctlhdr.ctlmsgk
-
Message key (used for the SNA sequence number, see Remarks).
Remarks
-
The Status-Control(…) ACKLUA message consists of a buffer header only; there is no buffer element.
-
See the table in Status-Control Message for a summary of Status-Control control type codes.
-
The application flags and the code 1 and code 2 fields are undefined and should not be used.
-
The message key field gives the sequence number from the TH of the inbound data message to which this is an acknowledgment.