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⟦12c14c85c⟧ Wang Wps File
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Types: Wang Wps File
Notes: clarification nr. 20
Names: »0912A «
Derivation
└─⟦d10d3ed68⟧ Bits:30006014 8" Wang WCS floppy, CR 0055A
└─ ⟦this⟧ »0912A «
WangText
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A̲P̲P̲E̲N̲D̲I̲X̲ ̲A̲
Q̲U̲E̲U̲I̲N̲G̲ ̲A̲T̲ ̲U̲S̲E̲R̲ ̲T̲E̲R̲M̲I̲N̲A̲L̲S̲
1. Queuing
2. Precedence queuing
3. Non-precedence queuing
4. Queue types
1̲ ̲ ̲Q̲U̲E̲U̲I̲N̲G̲
a) When transactions addressed to a terminal are distributed
by the system they shall be queued for that terminal
in accordance with their type as specified below:
a1) Response queue:
Deletion Notification (format P2)
Release Notification (format F)
Items retrieved from off-line database
a2) Release queue:
Messages for release (format D)
a3) Receive queue:
Messages for coordination (format B)
Incoming messages (format E1)
Outgoing messages (format E2)
Comments (format G2)
b) Two types of queuing shall exist:
- precedence queuing
- non-precedence queuing
2̲ ̲ ̲P̲R̲E̲C̲E̲D̲E̲N̲C̲E̲ ̲Q̲U̲E̲U̲I̲N̲G̲
a) For a queue for which precedence queuing is specified,
the queuing shall be in accordance with 1) and
2) below:
1) A transaction shall be queued in accordance
with the precedence level to which it belongs,
i.e. it shall be queued before all those transactions
of lower precedence and after all those transactions
of higher precednece which are queued for that
terminal position.
2) Queuing of transactions belonging to the same
precedence level shall be as follows:
- The order in which transactions shall be
queued is that of their time of queuing
to the terminal.
3̲ ̲ ̲N̲O̲N̲-̲P̲R̲E̲C̲E̲D̲E̲N̲C̲E̲
For a queue for which non-precedence queuing is specified
the queuing shall be as specified below:
The order in which transactions shall be queued is
that of their time of arrival to the queue.
4̲ ̲ ̲Q̲U̲E̲U̲E̲-̲T̲Y̲P̲E̲S̲
The release queue and the receive queue shall be of
the precedence type.
The response queue shall be of the non-precedence type.
CLARIFICATION NOTE NO. 21
APPENDIX A
Function keys
