Type ASSEMBLE
Source Lines : 715
Fixes Applied : 0
Most Recent Version : Tuesday, December 12, 1978
Last Fix ID : [Unmodified]
Module
DMSDSL ( DOSLIB )
Function
PROVIDE THE FACILITY TO DELETE MEMBERS (PHASES)
OF A 'DOSLIB' LIBRARY, OR TO COMPRESS A 'DOSLIB'
LIBRARY, OR TO LIST THE MEMBERS (PHASES) OF A
SPECIFIED 'DOSLIB' LIBRARY.
Attributes
DISK RESIDENT MODULE
EXECUTES IN USER AREA
Operation
1. SET UP NECESSARY ADDRESSABILITIES AND SAVE
THE RETURN REGISTER. ACQUIRE SUPERVISOR KEY
AND CLEAR ALL NON PERMANENT FCB'S.
2. VERIFY THAT THE SPECIFIED FUNCTION IS VALID
(MAP, DEL, OR COMP). VERIFY THAT A LIBRARY
NAME IS ALSO SPECIFIED. IF THE 'DEL' FUNCTION
IS SPECIFIED, ENSURE THERE IS AT LEAST ONE
MEMBER (PHASE) SPECIFIED IN THE COMMAND LINE.
3. PROCESSING OF THE 'DEL' FUNCTION STARTS BY
VERIFYING THE EXISTANCE OF THE LIBRARY ON
A R/W DISK. THE OUTPUT DCB IS OPENED AND THE
SPECIFIED PHASES ARE DELETED ISSING THE O/S
'STOW' MACRO. A WARNING MESSAGE IS ISSUED FOR
ALL NOT FOUND PHASES SPECIFIED IN THE COMMAND.
4. PROCESSING OF THE 'COMP' FUNCTION STARTS BY
VERIFYING THE EXISTANCE OF THE LIBRARY ON A
R/W DISK. THE INPUT AND OUTPUT DCB'S ARE OPENED
AND ALL ACTIVE MEMBERS ON THE INPUT LIBRARY ARE
COPIED TO THE OUTPUT WORK FILE. ALL I/O IS DONE
USING THE O/S 'FIND', 'READ', 'WRITE' AND 'STOW'
MACROS. ONCE THE OLD LIBRARY HAS BEEN COPIED,
THE OLD LIBRARY IS ERASED AND THE WORK FILE IS
RENAMED TO THE SAME NAME AS THE OLD LIBRARY. IF
THE OLD LIBRARY HAS NO ACTIVE MEMBERS, THE NEW
LIBRARY IS NOT CREATED AND THE OLD LIBRARY IS
ERASED. A WARNING MESSAGE IS ALSO ISSUED.
5. PROCESSING OF THE 'MAP' FUNCTION STARTS BY
VERIFYING THE EXISTANCE OF THE INPUT LIBRARY.
ONLY ONE OPTION IS ALLOWED ('DISK', 'PRINT'
OR 'TERM'). DEPENDING ON THE OPTION SPECIFIED,
OR DEFAULTED, THE OUTPUT FILE IS DETERMINED.
IF THE OPTION IS 'DISK', A TEST IS MADE TO
CHECK IF THE 'A' DISK IS R/W. THE INPUT AND
OUTPUT DCB'S ARE OPENED AND BY USING THE O/S
'FIND' MACRO, THE DIRECTORY FOR EACH MEMBER
IS ACQUIRED AND ALL NECESSARY INFORMATION IS
WRITTEN TO THE OUTPUT FILE.
6. WHEN ALL PROCESSING HAS BEEN DONE FOR ANY OF
THE FUNCTIONS, THE INPUT AND/OR OUTPUT DCB(S)
IS/ARE CLOSED. ANY ACQUIRED FCB(S) ARE CLEARED.
7. A SWITCH TO PROBLEM PROGRAM KEY IS DONE, AND A
RETURN TO THE CALLER IS MADE PASSING IN REG. 15
THE RETURN CODE OF THE COMMAND.
Calls to Other Routines
DMSERR, DMSERS, DMSFLD, DMSKEY, DMSRNE,
DMSSBS, DMSSOP, DMSSTT, DMSSVT