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⟦8ee9e5c28⟧ Wang Wps File
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Names: »~ORPHAN39.00«
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└─⟦a5d18cecd⟧ Bits:30006104 8" Wang WCS floppy, CR 0164A
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WangText
…02…CPS/SDS/035
…02…850601…02……02…
SUPERVISOR
VDU
DETAILED
DESIGN
SPECIFICATION…02…ISSUE
1…02…CAMPS
4.2.4 Volume Deletion Subpackage (VODL) ......
4.2.4.1 Functional Specification ...........
4.2.4.1.1 Command Interpretation and Proce
4.2.4.1.2 Volume Deletion (2.0) ..........
4.2.4.1.3 Error Handling .................
4.2.4.2 Software Structure ................
4.2.4.3 Data Flow and Control Logic ........
4.2.4.4 Module Description .................
4.2.4.4.1 VODL Main ......................
4.2.4.4.2 Report to CREP .................
4.2.4.43 VODL START .....................
4.2.4.4.4 CLEAN VODL .....................
4.2.4.4.5 Analyse VODL Result ............
4.2.4.4.6 Find and Delete Next File ......
4.2.4.4.7 Volume Mount/Dismount ..........
4.2.4.5 Common Subpackage Data .............
…86…1 …02… …02… …02… …02…
…02… …02…
4.2.4 V̲o̲l̲u̲m̲e̲ ̲D̲e̲l̲e̲t̲i̲o̲n̲ ̲S̲u̲b̲p̲a̲c̲k̲a̲g̲e̲ ̲(̲V̲O̲D̲L̲)̲
The Subpackage VODL deletes an entire volume on command
from SFCO. Deletion of a volume is time a consuming
task, and therefore this task as been assigned a coroutine.
VODL is running independent of user sign on sign off
as is CREP. When SSC issues a Close Down Command to
SUP, VODL receives a Close Command directly from SVCO.
4.2.4.1 F̲u̲n̲c̲t̲i̲o̲n̲a̲l̲ ̲S̲p̲e̲c̲i̲f̲i̲c̲a̲t̲i̲o̲n̲
The following functins are included in the package:
- SVCO Command Process
- SFCO Command Interpretation
- Deletion of all non-system files on the volume by
the of DAMOS procedure "Purge-file".
- Error Handling.
F igure 4.2.4.1-1 presents the functional breadown.…86…1
…02… …02… …02… …02… …02… …02…
FIGURE 4.2.4.1-1
FUNCTIONAL BREAKDOWN OF VODL…86…1 …02… …02… …02… …02… …02… …02…
4.2.4.1.1 C̲o̲m̲m̲a̲n̲d̲ ̲I̲n̲t̲e̲r̲p̲r̲e̲t̲a̲t̲i̲o̲n̲ ̲a̲n̲d̲ ̲P̲r̲o̲c̲e̲s̲s̲i̲n̲g̲
The VODL Coroutine receives commands from the coroutines
SVCO and SFCO. A received command is checked for validity
and if invalid proper action is taken.
Command received from SVCO (Controlling Commands) takes
precedence over and shall interrupt commands received
from SFCO.
Execution of the time consuming SFXO Command is therefore
controlled in such a way that the executon can be terminated
within a reasonable time.
4.2.4.1.2 V̲o̲l̲u̲m̲e̲ ̲D̲e̲l̲e̲t̲i̲o̲n̲ ̲(̲2̲.̲0̲)̲
The functions to delete a volume includes:
a) Mount of Volume
b) Deletion of each file on the volume (Purge File)
c) Dismount of Volume
d) Generation of a c
