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monitor-sources/mstr.mac
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; *** Edit 7216 to MSTR.MAC by GRANT on 23-Dec-85, for SPR #20902
; Even if home blocks are not good, have MSTR% return the data anyway
;------------------------- Autopatch Tape # 12 -------------------------
; *** Edit 7190 to MSTR.MAC by GRANT on 12-Nov-85
; Within MSTR%, use TTMSG% instead of SOUT% to prevent blocking forever
; UPD ID= 2125, SNARK:<6.1.MONITOR>MSTR.MAC.72, 5-Jun-85 09:59:10 by MCCOLLUM
;TCO 6.1.1406 - Update copyright notice.
; UPD ID= 1962, SNARK:<6.1.MONITOR>MSTR.MAC.71, 13-May-85 09:16:39 by LOMARTIRE
;TCO 6.1.1373 - Record new MID in the UDB and SDB when homeblocks are changed
; UPD ID= 1822, SNARK:<6.1.MONITOR>MSTR.MAC.70, 24-Apr-85 20:00:47 by MCCOLLUM
;TCO 6.1.1238 - Fix BUG. documentation
; UPD ID= 1681, SNARK:<6.1.MONITOR>MSTR.MAC.69, 25-Mar-85 12:05:00 by LOMARTIRE
;TCO 6.1.1286 - Return new MS%IAC if offline due to homeblock checking
; UPD ID= 1586, SNARK:<6.1.MONITOR>MSTR.MAC.68, 5-Mar-85 10:43:36 by GRANT
;More TCO 6.1.1220 - Put check for MS%SVD under debug
; UPD ID= 1564, SNARK:<6.1.MONITOR>MSTR.MAC.67, 25-Feb-85 12:32:04 by GRANT
;TCO 6.1.1220 - In MSTRS2, check for MS%SVD
; UPD ID= 1532, SNARK:<6.1.MONITOR>MSTR.MAC.66, 19-Feb-85 10:11:12 by LOMARTIRE
;TCO 6.1.1194 - Do not return MSTX44 for failing mount - use what is returned
; UPD ID= 1281, SNARK:<6.1.MONITOR>MSTR.MAC.65, 7-Jan-85 08:35:24 by GRANT
;TCO 6.1.1116 - In MSTRS2, don't check for PS:, use MS%2PT returned by PHYSIO.
; UPD ID= 1001, SNARK:<6.1.MONITOR>MSTR.MAC.64, 7-Nov-84 15:05:28 by MOSER
;MORE 6.2196 - MAKE IT WORK FOR .MSRUS TOO!
; UPD ID= 5043, SNARK:<6.MONITOR>MSTR.MAC.63, 30-Oct-84 21:41:01 by MOSER
;TCO 6.2196 - SAVE MITANENCE ID FOR MSRUS/MSRNU
; UPD ID= 4936, SNARK:<6.MONITOR>MSTR.MAC.62, 15-Oct-84 13:07:34 by GRANT
;The assembly switch CFSCOD has been eliminated
; UPD ID= 4859, SNARK:<6.MONITOR>MSTR.MAC.61, 20-Sep-84 11:14:11 by MCLEAN
;FIX PROBLEM WITH STROF BUGCHK
; UPD ID= 4739, SNARK:<6.MONITOR>MSTR.MAC.60, 24-Aug-84 09:41:31 by PAETZOLD
;TCO 6.2191 - Change unsafe SETJSB calls to MAPJSB.
; UPD ID= 4545, SNARK:<6.MONITOR>MSTR.MAC.59, 15-Jul-84 21:34:01 by PURRETTA
;Update copyright notice
; UPD ID= 4333, SNARK:<6.MONITOR>MSTR.MAC.58, 13-Jun-84 21:28:06 by MCLEAN
;FIX CALLS TO ASCSIX SO THAT YOU CAN'T HAVE A NULL NAME
; UPD ID= 4330, SNARK:<6.MONITOR>MSTR.MAC.57, 13-Jun-84 14:17:01 by MCLEAN
;tco 6.2096 FIX MSTX36 ERRORS THAT ARE BOGUS BECAUSE JFN ISN'T ASSIGNED
; UPD ID= 4276, SNARK:<6.MONITOR>MSTR.MAC.56, 30-May-84 21:34:54 by MCLEAN
;ADD SUPPORT FOR TRECPP
; UPD ID= 4222, SNARK:<6.MONITOR>MSTR.MAC.55, 15-May-84 16:26:13 by MOSER
;TCO 6.2038 - ALLOW PROPER STORING OF HOMSER FOR MULTI-PACK PS
; UPD ID= 4139, SNARK:<6.MONITOR>MSTR.MAC.54, 25-Apr-84 14:49:49 by MCLEAN
;TCO 6.2048 ITRAP ON FAILURE OF MSTRHB AT MSTRS4 SO YOU DON'T
;GET A GOOD RETURN
; UPD ID= 3960, SNARK:<6.MONITOR>MSTR.MAC.53, 23-Mar-84 13:05:30 by PAETZOLD
;More TCO 6.1989 - .MSINI length is different
; UPD ID= 3932, SNARK:<6.MONITOR>MSTR.MAC.52, 14-Mar-84 20:05:41 by PAETZOLD
;TCO 6.1989 - Check arg block length in MSTMNT.
; UPD ID= 3803, SNARK:<6.MONITOR>MSTR.MAC.51, 29-Feb-84 01:44:31 by TGRADY
;IMPLEMENT GLOBAL JOB NUMBERS
; -IN MSTJOB, ALWAYS RETURN LOCAL INDEX FOR GLOBAL JOB NUMBER, CONVERT GLOBALS
; VIA GL2LCL FOR NON-SELF JOBS.
; -In MSGU10, return the Global job number for each job that has a structure
; Mounted, is connected, or accessing it. Since we already have the other
; Job's JSB mapped, cheat by getting the global job number from there,
; rather than using the porker LCL2GL.
; UPD ID= 3499, SNARK:<6.MONITOR>MSTR.MAC.50, 20-Jan-84 16:12:44 by MOSER
;TCO 6.1944 ADD .MSDSH AND .MSDSN TO .MSRUS AND .MSRNU
; UPD ID= 3319, SNARK:<6.MONITOR>MSTR.MAC.49, 14-Dec-83 17:16:28 by MILLER
;TCO 6.1452. Use MSTX44 when CFSSMT fails
; UPD ID= 3248, SNARK:<6.MONITOR>MSTR.MAC.48, 4-Dec-83 19:55:26 by MILLER
;Code clean up around MSTM70
; UPD ID= 3246, SNARK:<6.MONITOR>MSTR.MAC.47, 3-Dec-83 20:13:12 by MILLER
;TCO 6.1452. Shuffle CFS code in MOUNT code to cover INIT case
; UPD ID= 3226, SNARK:<6.MONITOR>MSTR.MAC.46, 28-Nov-83 20:33:41 by TBOYLE
;TCO 6.1876. MSTR: New parameters for .MSTRUS: .MSRLS and .MSRSS
; UPD ID= 3093, SNARK:<6.MONITOR>MSTR.MAC.45, 3-Nov-83 08:09:09 by MILLER
;TCO 6.1452. Fix typeo in MSTCSM code
; UPD ID= 2977, SNARK:<6.MONITOR>MSTR.MAC.44, 4-Oct-83 07:17:10 by GRANT
;Typo in previous edit
; UPD ID= 2967, SNARK:<6.MONITOR>MSTR.MAC.43, 3-Oct-83 08:23:48 by MILLER
;TCO 6.1814. Bypass OFN update during dismount if structure off-line
; UPD ID= 2956, SNARK:<6.MONITOR>MSTR.MAC.42, 28-Sep-83 16:39:37 by MOSER
;TCO 6.1727 - FIX MSTR HANG
; UPD ID= 2785, SNARK:<6.MONITOR>MSTR.MAC.41, 2-Aug-83 15:50:11 by WEETON
;TCO 6.1611 - Make MSTR return MSTX43 if attempting to dismount a DA%INI str.
; UPD ID= 2541, SNARK:<6.MONITOR>MSTR.MAC.40, 31-May-83 14:03:03 by MILLER
;Fix errors in structure creates
; UPD ID= 2419, SNARK:<6.MONITOR>MSTR.MAC.39, 4-May-83 12:04:14 by MILLER
;TCO 6.1620. Don't set MS%2PT for PS:
; UPD ID= 2385, SNARK:<6.MONITOR>MSTR.MAC.38, 29-Apr-83 15:10:02 by MAYO
;TCO 6.1622 - Fix STOSTR's handling of bytepointers that aren't -1,,foo
; UPD ID= 2328, SNARK:<6.MONITOR>MSTR.MAC.36, 22-Apr-83 04:28:43 by WACHS
;TCO 6.1620 - Light MS%2PT
; UPD ID= 1645, SNARK:<6.MONITOR>MSTR.MAC.35, 12-Jan-83 15:22:41 by MILLER
;TCO 4.1452. .MSCSM is a privileged function
; UPD ID= 1643, SNARK:<6.MONITOR>MSTR.MAC.34, 12-Jan-83 08:11:54 by MILLER
;TCO 6.1452 some more. Fix some typeos
; UPD ID= 1641, SNARK:<6.MONITOR>MSTR.MAC.33, 11-Jan-83 19:57:36 by MILLER
;TCO 6.1452. Add .MSCSM to MSTR
; UPD ID= 1640, SNARK:<6.MONITOR>MSTR.MAC.32, 11-Jan-83 17:53:12 by MILLER
;TCO 6.1094. Return MS%EXC in status
; UPD ID= 1626, SNARK:<6.MONITOR>MSTR.MAC.31, 6-Jan-83 16:42:49 by MILLER
;Undo prevsious edit. Do the check in CFSSRV instead!
; UPD ID= 1623, SNARK:<6.MONITOR>MSTR.MAC.30, 6-Jan-83 16:08:28 by MILLER
;TCO 6.1094. Check if this node must do exclusive mounts
; UPD ID= 1614, SNARK:<6.MONITOR>MSTR.MAC.29, 4-Jan-83 11:05:57 by MILLER
;TCO 6.1094. Do CFS exclusive mount on either MS%EXL or MS%XCL
; UPD ID= 1522, SNARK:<6.MONITOR>MSTR.MAC.28, 8-Dec-82 17:17:57 by MOSER
;TCO 6.1408 - ALLOW MOUNT IF BACKUP ROOT-DIRECTORY BAD AND MS%IGN
; UPD ID= 1499, SNARK:<6.MONITOR>MSTR.MAC.27, 1-Dec-82 12:06:28 by MOSER
;TCO 6.1174 - PREVENT MAPBT1 BUGHLT
; UPD ID= 1410, SNARK:<6.MONITOR>MSTR.MAC.26, 3-Nov-82 16:37:02 by MOSER
;TCO 6.1330 - RETURN MS%PS WHEN APPROPRIATE
; UPD ID= 1314, SNARK:<6.MONITOR>MSTR.MAC.25, 9-Oct-82 13:14:07 by MILLER
;More TCO 6.1094. Move call to CFSSDM to before call to CLRSTR
; UPD ID= 1238, SNARK:<6.MONITOR>MSTR.MAC.24, 24-Sep-82 12:32:45 by LEACHE
; TCO 6.1273 Add MS%ASG
; UPD ID= 1199, SNARK:<6.MONITOR>MSTR.MAC.23, 20-Sep-82 14:58:10 by MILLER
;TCO 6.1094. Store alias name in SDBALS is appropriate
; UPD ID= 1171, SNARK:<6.MONITOR>MSTR.MAC.22, 13-Sep-82 19:49:15 by MILLER
;TCO 6.1094. Add CFS resource management
; UPD ID= 1156, SNARK:<6.MONITOR>MSTR.MAC.21, 8-Sep-82 13:20:54 by HAUDEL
;MORE TCO 6.1256 - CORRECT TYPO
; UPD ID= 1154, SNARK:<6.MONITOR>MSTR.MAC.20, 7-Sep-82 14:16:49 by HAUDEL
;TCO 6.1256 - ADD STROFF BUGCHK
; UPD ID= 98, SNARK:<5.MONITOR>MSTR.MAC.19, 12-Aug-81 13:31:59 by PAETZOLD
;TCO 5.1446 - FIX COPYING OF HOME BLOCKS
; UPD ID= 2194, SNARK:<5.MONITOR>MSTR.MAC.18, 12-Jun-81 12:20:28 by MOSER
;TCO 5.1369 Assign a structure to the mounting job when MS%XCL is specified
; on a mount rather than leaving the structure in initialize mode.
; UPD ID= 1977, SNARK:<5.MONITOR>MSTR.MAC.17, 11-May-81 13:36:08 by MOSER
; TCO 5.1320 - Don't crash if a bad job number is specified on .MSIMC
; UPD ID= 1815, SNARK:<5.MONITOR>MSTR.MAC.16, 16-Apr-81 16:56:14 by MOSER
;TCO 5.1285 - CORRECTLY SEND STRUCTURE STATUS TO DEVICE ALLOCATOR.
; UPD ID= 1021, SNARK:<5.MONITOR>MSTR.MAC.15, 16-Sep-80 15:44:31 by GRANT
;Change MONX01 to MONX05 in MAKSDB routine
; UPD ID= 1009, SNARK:<5.MONITOR>MSTR.MAC.14, 11-Sep-80 18:31:13 by GRANT
;Change many MONX01 to MONX02
; UPD ID= 995, SNARK:<5.MONITOR>MSTR.MAC.13, 9-Sep-80 12:19:43 by MOSER
;TCO 5.1141 - SEND STRUCTURE STATUS BITS TO MOUNTR
; UPD ID= 966, SNARK:<5.MONITOR>MSTR.MAC.12, 25-Aug-80 16:28:30 by ENGEL
;TCO 5.1136 - ADD DEVLKK
; UPD ID= 707, SNARK:<5.MONITOR>MSTR.MAC.11, 26-Jun-80 13:38:41 by SCHMITT
;TCO 5.1083 - UNLOCK JSSTLK AFTER ERROR RETURNS FROM GTSTOF
; UPD ID= 665, SNARK:<5.MONITOR>MSTR.MAC.7, 16-Jun-80 18:36:19 by LYONS
;BUG: IF ACJ REFUSES STRUCTURE MOUNT, STRUCTURE IS NOT UNLOCKED
; UPD ID= 663, SNARK:<5.MONITOR>MSTR.MAC.6, 16-Jun-80 17:23:35 by KONEN
;TCO 5.1063 - REMOVE REQUIREMENT OF PS: NAME ON SYSTEM STRUCTURE
; UPD ID= 619, SNARK:<5.MONITOR>MSTR.MAC.5, 9-Jun-80 18:00:30 by LYONS
;TCO 5.1062 Add MS%RWS and MS%RWD to the .MSSSS and .MGSSS calls
; UPD ID= 613, SNARK:<5.MONITOR>MSTR.MAC.3, 6-Jun-80 16:34:29 by KONEN
;TCO 5.1061 -- Add STROFL subroutine which checks for structure off-line
; UPD ID= 360, SNARK:<4.1.MONITOR>MSTR.MAC.45, 26-Mar-80 11:06:50 by DBELL
;TCO 4.1.1119 - MAKE CHANGES NECESSARY TO SUPPORT RP20 DISKS
;<4.MONITOR>MSTR.MAC.44, 30-Oct-79 13:41:01, Edit by KONEN
;CORRECT STRUCTURE ACCOUNTING RECORD
;<4.MONITOR>MSTR.MAC.43, 29-Oct-79 15:26:18, Edit by KONEN
;BAD IDEA, CHANGE TIMES BACK TO GTAD UNITS
;<4.MONITOR>MSTR.MAC.42, 20-Sep-79 17:07:41, EDIT BY HALL
;MSTMNT,MSTRUS,MSTGSS - CALL BLTMU1/BLTUM1 TO APPLY PCS IF NECESSARY
;<4.MONITOR>MSTR.MAC.41, 13-Sep-79 09:16:30, Edit by KONEN
;CHANGE TIMES FOR USAGE TO MILLISECONDS, RATHER THAN GTAD UNITS
;<4.MONITOR>MSTR.MAC.40, 11-Sep-79 10:39:01, Edit by KONEN
;CORRECT TCO 4.2431
;<4.MONITOR>MSTR.MAC.39, 7-Sep-79 04:52:52, EDIT BY R.ACE
;ADD COMMENT IN MSTDIS
;<4.MONITOR>MSTR.MAC.38, 30-Aug-79 14:22:50, EDIT BY SCHMITT
;TCO 4.2431 - CHANGE STRST CALL TO DEVST IN MSTDIS
;<4.MONITOR>MSTR.MAC.37, 27-Aug-79 16:02:22, EDIT BY ZIMA
;TCO 4.2423 - INCLUDE MS%LIM IN MSGMSK TO ALLOW RETURNING IT
;<4.MONITOR>MSTR.MAC.36, 23-Jul-79 16:51:00, Edit by KONEN
;ALLOW DISMOUNT OF REGULATED STRUCTURE EVEN IF USER ACCESS'ING IT
;<4.MONITOR>MSTR.MAC.35, 7-Jul-79 18:46:49, Edit by KONEN
;REMOVE NOSKED DURING SETTING UP OF DIRECTORIES
;<4.MONITOR>MSTR.MAC.34, 30-May-79 11:00:59, Edit by LCAMPBELL
; Check for C(FILSTS)=0, not just presence of NAMEF or ASGF
;<4.MONITOR>MSTR.MAC.33, 29-May-79 14:10:42, Edit by LCAMPBELL
; When decr mount count, only check JFNs with NAMEF or ASGF on
;<4.monitr>mstr.mac.32, 15-may-79 9:20:32, edit by schmitt
;fix for illegal read when .msrnu arg blk is less than 6 words
;<4.MONITOR>MSTR.MAC.29, 26-Apr-79 11:19:57, Edit by KONEN
;<4.MONITOR>MSTR.MAC.28, 23-Apr-79 16:46:17, Edit by KONEN
;CHANGE INITING JOB IN SDB TO INITING FORK, REMOVE DEVLCK IN STRINI
;<4.MONITOR>MSTR.MAC.26, 16-Apr-79 11:55:36, Edit by KONEN
;SEND STRUCTURE REMOVAL INFO CORRECTLY TO DEVICE ALLOCATOR
;<4.MONITOR>MSTR.MAC.25, 5-Apr-79 11:05:53, Edit by MCLEAN
;REMOVE FIRST ARGUMENT FROM GTOKM MACRO
;<4.MONITOR>MSTR.MAC.24, 29-Mar-79 09:03:06, Edit by KONEN
;<4.MONITOR>MSTR.MAC.23, 21-Mar-79 14:06:04, EDIT BY KIRSCHEN
;ADD TEMPORARY FIX FOR DEADLY EMBRACE IN STRINI
;<4.MONITOR>MSTR.MAC.22, 19-Mar-79 13:32:56, EDIT BY KIRSCHEN
;DO NOT PERMIT INTERRUPTS WITH FREE SPACE ASSIGNED IN MSTMNT
;<4.MONITOR>MSTR.MAC.21, 12-Mar-79 10:33:05, Edit by KONEN
;SEND ALL USAGE INFO TO DEVICE ALLOCATOR
;<4.MONITOR>MSTR.MAC.20, 7-Mar-79 15:32:18, Edit by MCLEAN
;FIX GETOK FOR INCREMENT STRUCTURE COUNT TO GIVE DEVICE DESIG CORRECTLY
;<4.MONITOR>MSTR.MAC.19, 4-Mar-79 18:34:48, EDIT BY KONEN
;UPDATE COPYRIGHT FOR RELEASE 4
;<4.MONITOR>MSTR.MAC.18, 8-Feb-79 13:42:29, Edit by KONEN
;PROHIBIT MOUNT OF STR WITH ALIAS WHICH IS IN SYSTEM LOGICAL NAMES TABLE
;<4.MONTOR>MSTR.MAC.17, 17-Jan-79 23:45:54, Edit by MCLEAN
;FIX GETOK SO IT IS DEVICE DESIGNATOR
;<4.MONITOR>MSTR.MAC.16, 15-Jan-79 22:33:38, EDIT BY GILBERT
;FIX VERSION SKEW BETWEEN MCLEAN AND KONEN.
;<4.MONITOR>MSTR.MAC.15, 15-Jan-79 14:08:52, Edit by KONEN
;ADD .MSIIC FUNCTION
;<4.MONITOR>MSTR.MAC.14, 14-Jan-79 20:02:09, Edit by MCLEAN
;FIX GETOK SO IT ONLY HAS ONE ARGUMENT
;<4.MONITOR>MSTR.MAC.13, 10-Jan-79 12:59:45, EDIT BY MILLER
;MAKE SIXASC INTERNAL (USED BY TAPE)
;<4.MONITOR>MSTR.MAC.12, 8-Jan-79 06:52:07, EDIT BY GILBERT
;TCO 4.2155 - Implement hidden symbol tables:
; Change the JSVAR macro to JSBVAR.
;<4.MONITOR>MSTR.MAC.11, 5-Jan-79 12:49:03, Edit by KONEN
;FIX SECG37 FROM MSTRUS
;<4.MONITOR>MSTR.MAC.10, 21-Dec-78 10:18:03, Edit by KONEN
;<4.MONITOR>MSTR.MAC.9, 16-Nov-78 14:13:46, Edit by KONEN
;ADD MOUNT/DISMOUNT CODE AS ARGUMENT TO DISMES CALL
;<KONEN>MSTR.MAC.4, 11-Aug-78 12:06:49, Edit by KONEN
;<KONEN>MSTR.MAC.38, 2-Aug-78 18:17:27, Edit by KONEN
;ALLOW OPERATOR OR WHEEL TO INCREMENT MOUNT COUNT. ALLOW SETTING OF
; PUBLIC BIT OF STRUCTURE STATUS. DISALLOW DECREMENT OF MOUNT COUNT
; WHILE JFN'S ASSIGNED, CONNECTED OR ACCESSING THE STRUCTURE.
;<4.MONITOR>MSTR.MAC.7, 16-Sep-78 14:30:32, EDIT BY MILLER
;RELEASE STRLOK AS SOON AS SDB IS CLEANED UP ON A DISMOUNT
;<4.MONITOR>MSTR.MAC.6, 15-Sep-78 13:43:25, Edit by MCLEAN
;ANOTHER NOINT/NOSKED
;<4.MONITOR>MSTR.MAC.5, 15-Sep-78 13:39:27, Edit by MCLEAN
;INSERT MOUNT COUNT INCREMENT/DECREMENT GETOK
;<4.MONITOR>MSTR.MAC.4, 15-Sep-78 13:34:19, Edit by MCLEAN
;REMOVE EXTRANEOUS NOINT/OKINT IN INCMNT
;<4.MONITOR>MSTR.MAC.3, 14-Aug-78 16:39:37, Edit by HEMPHILL
;TCO 1984 -- FIX SECNX B PROCESSOR BUG
;<4.MONITOR>MSTR.MAC.2, 10-Jul-78 18:56:30, Edit by HEMPHILL
;TCO 1935--MAKE .MSRNU REPORT SWAPPING PAGES FOR STRUCTURE, NOT
; SWAPPING SECTORS PER UNIT
;<4.MONITOR>MSTR.MAC.1, 22-Jun-78 15:52:09, EDIT BY MILLER
;LOCK STRLOK DURING A DISMOUNT
;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED
;OR COPIED ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE.
;
;COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1976, 1985.
;ALL RIGHTS RESERVED.
SEARCH MONSYM,PROLOG,PHYPAR
TTITLE (MSTR,,< - MOUNTABLE STRUCTURE MONITOR CALL>)
SWAPCD
; THIS FILE CONTAINS THE CODE TO IMPLEMENT THE MSTR JSYS
; NO SPECIAL AC DEFINITIONS ARE REQUIRED FOR THIS MODULE.
EXTN <HOMRXB,HOMSNM,HM1BLK,HM2BLK>
; MSTR - STRUCTURE MANIPULATION CALL
.MSTR:: MCENT ;MONITOR CONTEXT ENTRY
; GET AND VERIFY FUNCTION CODE, AND DISPATCH
XCTU [ HRRZ T1,1 ] ;GET FUNCTION CODE FROM USER
CAIL T1,0 ;MAKE SURE FUNCTION IN RANGE
CAILE T1,HGHFCN ; AND .LE. HIGHEST VALID FUNCTION CODE ?
ITERR (MSTRX1) ;NO, RETURN "INVALID FUNCTION"
HRRZ T2,MSTRTB(T1) ;YES, GET DISPATCH ADDRESS
CALL (T2) ;GO PROCESS REQUESTED FUNCTION
ITERR () ;FAILED, RETURN ERROR CODE TO USER
MRETNG ;SUCCESS, RETURN TO USER
; TABLE OF DISPATCH ADDRESSES
MSTRTB:
%%X==.
MSTRUS ;READ STATUS OF NEXT UNIT
MSTRUS ;READ STATUS OF A UNIT
MSTMNT ;MOUNT A STRUCTURE
MSTDIS ;DISMOUNT A STRUCTURE
MSTGSS ;GET STATUS OF A STRUCTURE
MSTSSS ;SET STATUS OF A STRUCTURE
MSTMNT ;INITIALIZE A STRUCTURE
MSTIMC ;INCREMENT MOUNT COUNT FOR THE JOB
MSTDMC ;DECREMENT MOUNT COUNT FOR THE JOB
MSTGSU ;GET STRUCTURE USERS
MSTHOM ;MODIFY HOME BLOCK
MSTICF ;INCREMENT MOUNT COUNT FOR A FORK
MSTDCF ;DECREMENT MOUNT COUNT FOR A FORK
MSTOFL ;ALLOWS MDA TO REQUEST INTERRUPT ON A CHANNEL
MSTIIC ;IGNORE MOUNT COUNT CHECK
MSTCSM ;Change structure mount attribute
HGHFCN==.-%%X-1 ;HIGHEST DEFINED FUNCTION
; .MSMNT/.MSINI - MOUNT/INITIALIZE A FILE STRUCTURE
; LOCAL VARIABLES --
MSTMNP==1 ;PHYSICAL PAGE # OF PAGE USED TO READ HOME BLOCKS
MSTMNA==2 ;VIRTUAL ADDRESS OF PAGE USED TO READ HOME BLOCKS
MSTMNE==3 ;TEMPORARILY HOLDS CODE ON ERRORS, USED AS A LOCAL FLAG
MSTMNS==4 ;STRUCTURE NUMBER
MSTMNB==5 ;ADDRESS OF STRUCTURE DATA BLOCK
MSTMND==6 ;SIXBIT STRUCTURE NAME
MDATSZ==7 ;SIZE OF FREE BLOCK USED FOR LOCAL STORAGE
; ACCUMULATOR USAGE --
;
; Q1/ ADDRESS OF USER'S ARGUMENT BLOCK IN USER SPACE
; Q2/ FUNCTION TO PERFORM (.MSMNT OR .MSINI)
; Q3/ ADDRESS OF BLOCK HOLDING LOCAL VARIABLES
; P3/ ADDRESS OF USER'S ARGUMENT BLOCK IN MONITOR SPACE
; P4/ SIZE OF USER'S NON-OPTIONAL ARGUMENT BLOCK
; VERIFY THAT USER HAS REQUIRED CAPABILITIES ENABLED
MSTMNT: STKVAR <NEWMID> ;Word to hold new media ID if created
MOVE T1,CAPENB ;GET ENABLED CAPABILITIES
TXNN T1,SC%WHL!SC%OPR ;WHEEL OR OPERATOR ENABLED NOW ?
RETBAD (MSTRX2) ;NO, RETURN "WHEEL OR OPERATOR REQUIRED"
; COPY USER ARGUMENT BLOCK INTO MONITOR SPACE
XCTU [ HLRZ P2,1 ] ;GET SIZE OF USER'S ARGUMENT BLOCK
CAIN T2,.MSMNT ;ARE WE JUST MOUNTING?
CAIG P2,<<HOMTBL*<.MSTUN-.MSTCH+1>>+.MSTFL+1> ;LEGAL LENGTH?
SKIPA ;NOT .MSMNT OR LENGTH OK
RETBAD (ARGX05) ;NO GIVE AN ERROR
CAIN T2,.MSINI ;ARE WE INITIALIZING?
CAIG P2,<<.MSIFL-.MSINM+1>+<HOMTBL*<.MSIUN-.MSICH+1>>+<.MSISN-.MSIST+1>>
SKIPA ;NOT .MSINI OR LENGTH OK
RETBAD (ARGX05) ;NO GIVE AN ERROR
MOVEI T2,1(P2) ;ALLOW ONE WORD FOR FREE BLOCK HEADER
NOINT ;PREVENT INTERRUPTS WITH SPACE ASSIGNED
CALL ASGJFR ;ASSIGN FREE SPACE TO HOLD BLOCK
RETBAD (MONX02,<OKINT>) ;RETURN "INSUFFICIENT RESOURCES" - JSB FULL
MOVEM T1,P1 ;SAVE ADDRESS OF FREE BLOCK
MOVEI P3,1(T1) ;COMPUTE STARTING ADDRESS OF ARG BLOCK
UMOVE T2,T2 ;GET ADDRESS OF ARG BLOCK IN USER SPACE (SOURCE)
XMOVEI T3,0(P3) ;GET ADDRESS OF ARG BLOCK IN MONITOR (DEST)
MOVE T1,P2 ;GET COUNT TO TRANSFER
CALL BLTUM1 ;COPY USER'S ARGUMENT BLOCK INTO MONITOR SPACE
; ..
; ..
; CHECK SIZE OF ARGUMENT BLOCK
XCTU [HRRZ Q2,1] ;GET FUNCTION TO PERFORM FROM THE USER
UMOVE Q1,2 ;GET ADDRESS OF USER ARGUMENT BLOCK
HRRZ P4,.MSTNU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
SKIPG P4 ;AT LEAST ONE UNIT SPECIFIED ?
JRST [ MOVX T1,MSTRX3 ;NO, GET "ARG BLOCK TOO SMALL" ERROR CODE
JRST MNTER1 ] ;GO RELEASE ARG BLOCK SPACE AND RETURN ERROR
CAILE P4,HOMTBL ;REASONABLE # OF UNITS?
JRST [ MOVEI T1,MSTX35 ;NO. GIVE ERROR
JRST MNTER1]
IMULI P4,.MSTNO ;COMPUTE LENGTH OF UNIT SPECIFIC INFO
ADDI P4,.MSTUI ;ADD NUMBER OF OTHER WORDS
CAIN Q2,.MSINI ;INITIALIZING THIS STRUCTURE ?
JRST [ LOAD T4,MS%FCN,.MSTFL(P3) ;YES, GET REQUESTED FUNCTION
CAIE T4,.MSCRE ;CREATING NEW FILE SYSTEM ?
CAIN T4,.MSWHB ; OR WRITING HOME BLOCKS ?
ADDI P4,.MSISN-.MSIST+1 ;YES, INCLUDE ID INFO IN COMPARISON
JRST .+1] ;CONTINUE
CAMGE P2,P4 ;IS USER ARGUMENT BLOCK BIG ENOUGH ?
JRST [ MOVX T1,MSTRX3 ;NO, GET "ARG BLOCK TOO SMALL" ERROR CODE
JRST MNTER1 ] ;GO RELEASE ARG BLOCK SPACE AND RETURN ERROR
; IF INITIALIZING, CHECK REQUESTED FUNCTION
CAIE Q2,.MSINI ;INITIALIZING ?
JRST MSTM10 ;NO, GO ALLOCATE SPACE FOR LOCAL VARIABLES
LOAD T1,MS%FCN,.MSIFL(P3) ;YES, GET FUNCTION REQUESTED
CAIL T1,.MSCRE ;IS REQUESTED FUNCTION WITHIN
CAILE T1,.MSRIX ; VALID RANGE ?
JRST [ MOVX T1,MSTRX1 ;NO, GET "INVALID FUNCTION" ERROR CODE
JRST MNTER1 ] ;GO RELEASE ARG BLOCK SPACE AND RETURN ERROR
; CHECK THAT MOUNT IS EXCLUSIVE IF ERRORS WILL BE IGNORED
MSTM10: MOVE T1,.MSTFL(P3) ;GET FLAGS FROM USER ARGUMENT BLOCK
TXNE T1,MS%IGN ;IGNORING ERRORS ?
TXNE T1,MS%XCL ; BUT NOT MOUNTED EXCLUSIVE ?
SKIPA ;NO, PROCEED
JRST [ MOVX T1,MSTRX1 ;YES, GET "ILLEGAL FUNCTION" ERROR CODE
JRST MNTER1] ;GO RELEASE SPACE AND RETURN ERROR
; ALLOCATE SPACE FOR LOCAL VARIABLES
MOVEI T2,MDATSZ ;GET SIZE OF DATA BLOCK REQUIRED
CALL ASGJFR ;ASSIGN JSB FREE SPACE
JRST [ MOVX T1,MONX02 ;NO, GET "INSUFFICIENT RESOURCES" - JSB FULL
JRST MNTER1 ] ;GO RELEASE ARG BLOCK SPACE AND RETURN ERROR
MOVEM T1,Q3 ;SAVE ADDRESS OF BLOCK RETURNED
; ..
; ..
; CHECK FOR A VALID STRUCTURE NAME
CALL LCKDVL ;LOCK DEVICE LOCK UNTIL DEVICE TABLES MODIFIED
SKIPN T1,.MSTAL(P3) ;GET ALIAS FOR STRUCTURE
MOVE T1,.MSTNM(P3) ;NO ALIAS, GET STRUCTURE ID
CALL CHKNAM ;GO CHECK NAME AND CONVERT TO SIXBIT
JRST MNTER3 ;FAILED, RETURN ERROR
MOVEM T1,MSTMND(Q3) ;SAVE SIXBIT DEVICE NAME
CALL UNICHK ;GO CHECK THE UNIT SPECIFICATIONS
JRST MNTER3 ;FAILED, UNLOCK DEVICE TABLE LOCK, RETURN ERROR
SETZM NEWMID ;Assume we are not creating new home blocks
CAIE Q2,.MSINI ;ARE WE INITIALIZING THIS STRUCTURE ?
JRST MSTM30 ;NO, GO CHECK THE HOME BLOCKS
LOAD T1,MS%FCN,.MSIFL(P3) ;YES, GET PARTICULAR FUNCTION REQUESTED
CAIE T1,.MSCRE ;CREATING NEW FILE SYSTEM ?
CAIN T1,.MSWHB ; OR WRITING NEW HOME BLOCKS ?
JRST [ CALL MAKHOM ;YES, GO CREATE A PAIR OF NEW HOME BLOCKS
JRST MNTER3 ;FAILED, RETURN ERROR
MOVEM T1,NEWMID ;Success, save new media ID of new home blocks
JRST .+1 ] ;NOW CHECK THE NEW HOME BLOCKS
MSTM30: CALL HOMCHK ;GO READ THE HOME BLOCKS, FIX UP IF NEEDED
JRST MNTER3 ;FAILED, UNLOCK DEVICE TABLE LOCK, RETURN ERROR
MOVEM T1,MSTMNS(Q3) ;SAVE STRUCTURE NUMBER
MOVE T2,STRTAB(T1) ;GET ADDRESS OF SDB OF THIS STRUCTURE
MOVEM T2,MSTMNB(Q3) ;SAVE ADDRESS OF SDB
SKIPE T1,NEWMID ;Did we create new home blocks?
STOR T1,STRMI,(T2) ;Yes, save new media ID in SDB
; SET UP THE UNIQUE CODE FOR THIS STRUCTURE
CALL LGTAD ;GET TIME AND DATE
LSH T1,-8 ;RIGHT JUSTIFY 5 DATE BITS, 10 TIME BITS
SKIPN UCSEED ;IS THERE A SEED FOR THIS UNIQUE CODE ?
HRRZM T1,UCSEED ;NO, STORE AN INITIAL UNIQUE CODE SEED
AOS T1,UCSEED ;INCREMENT UNIQUE CODE
LSH T1,STRNS ;SHIFT TO CORRECT POSITION
ANDI T1,37777 ;INSURE CODE IS LESS THAN 40000
; (CODES ABOVE 40000 ARE FOR STRUCTURES MOUNTED
; AT SYSTEM STARTUP TIME)
TRO T1,500000 ;ADD "5B2" FIELD TO UNIQUE CODE
MOVE T2,MSTMNB(Q3) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
STOR T1,STRUC,(T2) ;STORE UNIQUE CODE IN SDB
MOVE T1,MSTMNS(Q3) ;GET THE STR NUMBER
STOR T1,STRUS,(T2) ;PUT THE STRUCTURE NUMBER INTO STRUC ALSO
; ..
; ..
; ADD STRUCTURE TO DEVICE TABLES
MOVEI T1,DVXST0 ;GET OFFSET TO STRUCTURE PART OF TABLES
ADD T1,MSTMNS(Q3) ;COMPUTE OFFSET FOR THIS STRUCTURE
MOVX T3,D1%INI ;INDICATE STRUCTURE BEING INITED
IORM T3,DEVCH1(T1) ;MARK THIS TEMPORARY STATUS OF STRUCTURE
MOVE T3,MSTMND(Q3) ;GET SIXBIT STRUCTURE NAME
MOVEM T3,DEVNAM(T1) ;STORE STRUCTURE NAME
CAME T3,SDBNAM(T2) ;Mounted with an alias?
MOVEM T3,SDBALS(T2) ;yes. Store alias name
MOVE T3,MSTMNS(Q3) ;GET STRUCTURE NUMBER
HRRM T3,DEVUNT(T1) ;SAVE "UNIT" NUMBER
MOVX T3,D1%NIU ;CLEAR INDICATOR THAT THIS SLOT IS NOT
ANDCAM T3,DEVCH1(T1) ; NOW IN USE
MOVE T3,FORKX ;GET CURRENT FORK NUMBER
STOR T3,STRJB,(T2) ;INDICATE INITING FORK
; ..
;If CFS, register the mount
; IFN CFSCOD,<
MOVE T1,MSTMNS(Q3) ;Get structure number
SETZM T2 ;Shared
MOVE T3,.MSTFL(P3) ;Get user's flags
TXNE T3,MS%EXL!MS%XCL ;Exclusive?
IFNSK. ;If so
MOVE T3,STRTAB(T1) ;Get SDB address
SETONE STEXL,(T3) ;Set exclusive
MOVEI T2,1
ENDIF.
CALL CFSSMT ;Register it
JRST MNTR44 ;Rejected
; > ;IFN CFSCOD
; IF INITIALIZING, ASSIGN THE INDEX BLOCK ADDRESSES AND GET ROOT-DIR OFN
CAIE Q2,.MSINI ;INITIALIZING THIS STRUCTURE ?
JRST MSTM50 ;NO, GO GET AN OFN FOR THE ROOT-DIRECTORY
LOAD T1,MS%FCN,.MSIFL(P3) ;YES, GET PARTICULAR FUNCTION REQUESTED
CAIN T1,.MSRRD ;RECONSTRUCT ROOT-DIRECTORY ?
JRST [ MOVE T1,MSTMNS(Q3) ;YES, GET STRUCTURE NUMBER
CALL FILREC ;GO RECONSTRUCT THE ROOT-DIR
JRST [MOVX T1,MSTX29 ;FAILED, GET ERROR CODE
JRST MNTER4 ] ;GO RETURN ERROR TO USER
JRST MSTM50] ;GO FINISH MOUNTING STRUCTURE
CAIE T1,.MSCRE ;CREATE NEW FILE-SYSTEM ?
JRST MSTM50 ;NO, GO FINISH MOUNTING STRUCTURE
HRRZ T3,.MSINU(P3) ;YES, GET # OF UNITS IN STRUCTURE
MOVEI T4,-1(T3) ;GET # OF UNITS - 1
IMULI T4,.MSINO ;COMPUTE # OF ADDITIONAL PER-UNIT WORDS
ADDI T4,.MSIFE(P3) ;ADD BASE OFFSET TO FE FILE SYSTEM ARGUMENT
MOVE T2,(T4) ;GET # OF PAGES TO ALLOCATE FOR FE FILE SYSTEM
MOVE T3,P4 ;FIND NON-OPTIONAL PARAMTERE SIZE
ADDI T3,.MSIFB-.MSIFI-2 ;CHECK TO SEE IF BOOTSTRAP.BIN LIVES
CAMGE P2,T3
SKIPA T3,[NPGSBT] ;NOT SPECIFIED -- GET DEFAULT
MOVE T3,.MSIFB-.MSIFE-2(T4) ;SPECIFIED GET USER'S REQUESTED SIZE
MOVE T1,MSTMNS(Q3) ;GET THE STRUCTURE NUMBER
CALL STRINI ;GO SET UP DIRECTORIES AND BIT TABLE ON NEW STR
JRST MNTER4 ;FAILED, GO RELEASE SDB AND RETURN ERROR CODE
JRST MSTM70 ;GO GET A HANDLE ON THE INDEX TABLE
; ..
; ..
; GET AN OFN FOR THE ROOT-DIRECTORY ON THIS STRUCTURE
MSTM50: MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL SETRDO ;GET AN OFN FOR THE ROOT-DIRECTORY
JRST [ MOVX T1,MSTRX8 ;ERROR, GET "CANNOT GET OFN" ERROR CODE
JRST MNTER4 ] ;GO RELEASE SDB AND RETUURN ERROR TO USER
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL MNTBTB ;OPEN THE BIT TABLE FILE
JRST [ MOVE T1,.MSTFL(P3) ;GET USER'S FLAGS
TXNN T1,MS%IGN ;MOUNT DESPITE ERRORS ?
JRST [ MOVX T1,MSTX12 ;GET "CANNOT OPEN BIT TABLE" ERROR CODE
JRST MNTER5] ;RELEASE OFN OF ROOT-DIR AND RETURN ERROR
MOVE T1,MSTMNS(Q3) ;YES, GET STRUCTURE NUMBER
HRRZ T2,STRTAB(T1) ;POINT TO ITS SDB
MOVX T4,MS%ASG ;FORBID ASSIGNING PAGES UNTIL CHECKD CAN
IORM T4,SDBSTS(T2) ; RUN AND REBUILD THE BIT TABLE
JRST .+1] ;CONTINUE TO MOUNT STRUCTURE
;IF IDXTAB EXISTS, GET AN OFN ON IT. OTHERWISE, CREATE ONE AND
;GET AN OFN ON IT
MSTM70: MOVE T1,MSTMNS(Q3) ;GET THE STRUCTURE NUMBER
XMOVEI T4,FNDIDX ;Assume IDXTAB exists
CAIN Q2,.MSINI ;ARE WE INITIALIZING THE STRUCTURE?
JRST [ LOAD T2,MS%FCN,.MSIFL(P3) ;YES. WHAT ARE WE DOING?
CAIE T2,.MSRIX ;REBUILDING IDXTAB?
CAIN T2,.MSCRE ;NO. CREATING NEW FILE SYSTEM?
XMOVEI T4,MAKIDX ;yes, create new IDXTAB
JRST .+1]
CALL 0(T4) ;GET OR CREATE IDXTAB FILE
JRST MNTER6 ;FAILURE. GO RETURN ERROR TO CALLER
;CHECK ROOT-DIRECTORY
MOVEI T1,ROOTDN ;GET NUMBER OF ROOT-DIRECTORY
MOVE T2,MSTMNB(Q3) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
LOAD T3,STRUC,(T2) ;GET UNIQUE CODE
HRL T1,T3 ;BUILD DIR NUMBER
CALL SETDIR ;MAP IN THE ROOT-DIRECTORY
JRST [ MOVX T1,MSTRX9 ;COULD NOT MAP DIRECTORY, GET ERROR CODE
JRST MNTER7 ] ;GO RELEASE SDB AND RETURN ERROR TO USER
CALL BLKSCN ;CHECK DIRECTORY FOR CONSISTENCY
JRST [ CALL USTDIR ;ROOT-DIRECTORY BAD, UNLOCK THE DIRECTORY
MOVX T1,MSTX10 ;GET ERROR CODE
JRST MNTER7 ] ;GO CLEAN UP AND RETURN ERROR TO USER
CALL USTDIR ;GO UPDATE AND UNLOCK THE DIRECTORY
; SET UP THE INDEX TABLE
CAIE Q2,.MSINI ;ARE WE INITIALIZING THE STRUCTURE?
JRST MSTM75 ;NO. SKIP THIS
LOAD T1,MS%FCN,.MSIFL(P3) ;YES. SEE WHAT WE ARE DOING
CAIE T1,.MSRIX ;REBUILDING IDXTAB?
CAIN T1,.MSCRE ;NO. CREATING A NEW FILE SYSTEM?
SKIPA ;REBUILD IDXTAB OR REFRESH
JRST MSTM75 ;NEITHER. DON'T INITIALIZE IDXTAB
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL IDXINI ;INITIALIZE INDEX TABLE
JRST [ MOVX T1,MSTX11 ;COULD NOT INITIALIZE INDEX TABLE
JRST MNTER7 ] ;RELEASE SDB AND RETURN ERROR CODE TO USER
;..
;..
; CHECK THE BIT TABLE, THE BACKUP ROOT-DIRECTORY, AND THE BAT BLOCKS
MSTM75: MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
MOVE T2,MSTMNB(Q3) ;ADDR OF SDB
LOAD T3,STRBTB,(T2) ;OFN OF BITTABLE
MOVEI T2,0 ;NO FLAGS (DON'T TYPE CTY MESSAGES)
SKIPE T3 ;IF NO BITTABLE
CALL CHKBT ;GO CHECK THE BIT TABLE
JRST [ MOVX T1,MSTX30 ;GET "BIT-TABLE-ERRORS" ERROR CODE
MOVE T4,.MSTFL(P3) ;GET FLAGS FROM USER ARGUMENT BLOCK
TXNN T4,MS%IGN ;IGNORE NON-FATAL ERRORS ?
JRST MNTER7 ;NO, RETURN ERROR CODE TO USER
JRST .+1] ;YES, CONTINUE WITH MOUNT
CAIE Q2,.MSINI ;ARE WE INITIALIZING THIS STR IN SOME WAY ?
JRST MSTM80 ;NO, GO CHECK THE BACKUP ROOT-DIR
LOAD T1,MS%FCN,.MSIFL(P3) ;YES, GET THE PARTICULAR FUNCTION REQUESTED
CAIN T1,.MSRRD ;RECONSTRUCTING ROOT-DIR ?
JRST MSTM90 ;YES, DO NOT CHECK BACKUP ROOT-DIR (NOT THERE!)
MSTM80: MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL CHKBAK ;CHECK BACKUP COPY OF ROOT-DIRECTORY
JRST [ MOVX T1,MSTX13 ;GET "BAD BACKUP ROOT-DIRECTORY" ERROR CODE
MOVE T4,.MSTFL(P3) ;GET FLAGS FROM USER ARGUMENT BLOCK
TXNN T4,MS%IGN ;IGNORE NON-FATAL ERRORS ?
JRST MNTER7 ;NO, RETURN ERROR CODE TO USER
JRST .+1] ;YES, CONTINUE WITH MOUNT
MSTM90: CALL ASGPAG ;GET A PAGE FOR READING BAT BLOCKS
JRST [ MOVX T1,MONX02 ;GET "INSUFFICIENT RESOURCES" - JSB FULL
JRST MNTER7 ] ;GO RELEASE BIT TABLE OFN AND RETURN ERROR
MOVEM T1,MSTMNA(Q3) ;SAVE ADDRESS OF BAT BLOCK PAGE
MOVE T2,T1 ;COPY ADDRESS OF BAT BLOCK PAGE
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
MOVE T3,.MSTFL(P3) ;GET FLAGS FROM USER ARGUMENT BLOCK
AND T3,[MS%NFB] ;KEEP ONLY THE NO-FIX-BAT-BLOCK BIT IF SET
CALL CHKBAT ;GO CHECK THE BAT BLOCKS
MOVE T1,MSTMNA(Q3) ;GET ADDRESS OF BAT BLOCK PAGE
CALL RELPAG ;RELEASE THE BAT BLOCK PAGE
; IF ONLY ACTION WAS TO WRITE HOME BLOCKS, GO INSERT FE-FILE SYSTEM POINTER
CAIE Q2,.MSINI ;ARE WE INITIALIZING THE STR ?
JRST MSTM92 ;NO, GO FIX UP DEVICE TABLES
LOAD T1,MS%FCN,.MSIFL(P3) ;YES, GET REQUESTED FUNCTION
CAIE T1,.MSWHB ;WAS REQUEST TO WRITE HOME BLOCKS ONLY ?
JRST MSTM92 ;NO, GO FIX UP DEVICE TABLES
MOVE T1,MSTMNS(Q3) ;YES, GET STRUCTURE NUMBER
CALL FIXFES ;GO ADD FE-FILESYSTEM POINTER TO HOME BLOCKS
JFCL ;FAILED, OR NO FE FILE SYSTEM ON STR
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL FIXBOT ;GO ADD BOOTSTRAP.BIN POINTER TO HOME BLOCKS
JFCL ;FAILED, OR NO BOOTSTRAP.BIN ON STR
; MARK THAT THE STRUCTURE IS NOW AVAILABLE FOR USE
MSTM92: MOVE T4,.MSTFL(P3) ;GET FLAGS FROM USER ARG BLOCK
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
ADDI T1,DVXST0 ;GET OFFSET TO START OF STR INFORMATION
MOVX T2,D1%INI ;GET "STRUCTURE BEING INITED" FLAG
MOVE T3,MSTMNB(Q3) ;GET STRUCTURE DATA BLOCK ADDRESS
ANDCAM T2,DEVCH1(T1) ;MARK THAT STRUCTURE NOT BEING INITED
SETZRO STRJB,(T3) ;ZERO INITING FORK
HRROS DEVUNT(T1) ;ASSUME STRUCTURE AVAILABLE TO ALL JOBS
MOVE T3,JOBNO ;GET OUR JOB INDEX
TXNE T4,MS%XCL ;EXCLUSIVE?
HRLM T3,DEVUNT(T1) ;YES, SAVE JOB INDEX.
UNLOKK DEVLKK ;UNLOCK THE DEVICE TABLE LOCK
TXNN T4,MS%XCL ;IS STRUCTURE MOUNTED FOR EXCLUSIVE USE ?
JRST MSTM95 ;NO, GO RELEASE FREE SPACE AND RETURN
MOVE T1,MSTMNB(Q3) ;YES, GET ADDRESS OF SDB FOR THIS STRUCTURE
LOAD T1,STRUC,(T1) ;GET UNIQUE CODE FOR THE STRUCTURE
CALL GTSTOF ;GET STRUCTURE OFFSET IN JSB BLOCKS
JRST MSTM95 ;FAILED, JUST GO ON
SETONE JSXCL,(T2) ;NOTE THAT THIS JOB MOUNTED STR EXCLUSIVELY
MSTM95: MOVEI T1,JSBFRE ;GET FREE HEADER
MOVE T2,Q3 ;GET ADDRESS OF FREE BLOCK
CALL RELFRE ;RELEASE FREE SPACE FOR LOCAL VARIABLES
MOVEI T1,JSBFRE ;GET FREE HEADER
MOVE T2,P1 ;GET ADDRESS OF FREE BLOCK
CALL RELFRE ;RELEASE FREE SPACE HOLDING USER ARG BLOCK
OKINT ;PERMIT INTERRUPTS AGAIN
RETSKP ;RETURN TO USER
; HERE ON ERROR TO RELEASE OFNS AND SDB, AND RETURN ERROR TO USER
MNTER7: MOVEM T1,MSTMNE(Q3) ;SAVE ERROR CODE
MOVE T1,MSTMNB(Q3) ;GET ADDRESS OF SDB
LOAD T1,STRIDX,(T1) ;GET OFN OF INDEX TABLE FILE
CALL RELOFN ;GO RELEASE THE ROOT-DIRECTORY OFN
MOVE T1,MSTMNE(Q3) ;RESTORE ERROR CODE
;FALL INTO MNTER6 TO RELEASE THE BIT TABLE OFN
MNTER6:
;FALL INTO MNTER5 TO RELEASE OFN AND SDB
MNTER5:
MOVEM T1,MSTMNE(Q3) ;SAVE ERROR CODE
CALL UNMAPD ;GO UNMAP CURRENTLY MAPPED DIRECTORY
MOVE T1,MSTMNB(Q3) ;GET ADDRESS OF SDB
LOAD T1,STRRDO,(T1) ;GET OFN OF ROOT-DIRECTORY
CALL RELOFN ;GO RELEASE THE ROOT-DIRECTORY OFN
MOVE T1,MSTMNB(Q3) ;GET ADDRESS OF SDB
LOAD T1,STRBTB,(T1) ;GET OFN OF BIT TABLE FILE
SKIPE T1 ;Do we have one?
CAIL T1,NOFN ;And is it an OFN?
IFSKP. <CALL RELOFN> ;If so, release it
MOVE T1,MSTMNE(Q3) ;RESTORE ERROR CODE
; HERE ON ERROR TO RELEASE THE SDB AND RETURN ERROR CODE TO USER
MNTER4:
; IFN CFSCOD,<
MOVEM T1,MSTMNE(Q3) ;Stash the error
MOVE T1,MSTMNS(Q3) ;Get structure number
CALL CFSSDM ;Release resource
MOVE T1,MSTMNE(Q3) ;recover the error code
; > ;IFN CFSCOD
; HERE ON ERROR TO RELEASE OFN OF ROOT-DIRECTORY, FREE SDB, AND RETURN
MNTR44: MOVEM T1,MSTMNE(Q3) ;SAVE ERROR CODE
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL DEVSTR ;GO FIX UP DEVICE TABLES
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL MRKOFN ;MARK OFN'S ON THIS STR AS ON A DISMOUNTED STR
SKIPE T1,MSTMNB(Q3) ;GET ADDRESS OF SDB
CALL CLRSTR ;GO CLEAR STRUCTURE INFO IN UDB'S
MOVE T1,MSTMNS(Q3) ;GET STRUCTURE NUMBER
CALL CLRSTB ;CLEAR THE STRTAB ENTRY
MOVE T1,MSTMNE(Q3) ;GET ERROR CODE AGAIN
MNTER3: MOVEM T1,MSTMNE(Q3) ;SAVE ERROR CODE
UNLOKK DEVLKK ;UNLOCK THE DEVICE TABLE LOCK
MOVE T1,MSTMNE(Q3) ;GET ERROR CODE AGAIN
MNTER2: EXCH T1,Q3 ;SAVE ERROR CODE IN Q3, GET ADR OF BLOCK
MOVE T2,T1 ;GET ADDRESS OF BLOCK TO RELEASE
MOVEI T1,JSBFRE ;GET FREE HEADER
CALL RELFRE ;RELEASE FREE BLOCK
MOVE T1,Q3 ;GET ERROR CODE BACK AGAIN
MNTER1: MOVEM T1,Q3 ;SAVE ERROR CODE
MOVEI T1,JSBFRE ;GET FREE HEADER
MOVE T2,P1 ;GET ADDRESS OF FREE BLOCK
CALL RELFRE ;RELEASE FREE BLOCK
OKINT ;PERMIT INTERRUPTS AGAIN
MOVE T1,Q3 ;RESTORE ERROR CODE
RETBAD () ;ERROR, CODE IS STILL IN T1
ENDSV.
;CHKNAM - ROUTINE TO VALIDATE THE ALIAS FOR THE STRUCTURE AND CONVERT THE
; ASCIZ STRING TO SIXBIT FOR INSERTION INTO THE DEVICE TABLES.
;
;ACCEPTS IN T1/ POINTER TO ASCIZ STRING IN USER SPACE
; CALL CHKNAM
;RETURNS: +1 FAILURE, ERROR CODE IN T1
; +2 SUCCESS, T1/ SIXBIT STRUCTURE ALIAS FOR DEVNAM TABLE
CHKNAM: STKVAR <CKNERR,CKNBLK,CKNNAM>
SETZM CKNERR ;INITIALIZE ERROR FLAG
CALL CPYFUS ;COPY STRING FROM USER SPACE
RETBAD (MONX02) ;FAILED, RETURN "INSUFFICIENT RESOURCES" - JSB FULL
MOVEM T1,CKNBLK ;SAVE ADDRESS OF BLOCK CONTAINING ASCIZ STRING
CALL ASCSIX ;GO CONVERT THE ASCIZ INTO SIXBIT
JRST [ SETOM CKNERR ;FAILED, INVALID SIXBIT NAME. SET ERROR FLAG
JRST CKNM30 ] ;GO RELEASE FREE BLOCK AND RETURN ERROR CODE
MOVEM T1,CKNNAM ;SAVE SIXBIT ALIAS
JUMPE T1,[SETOM CKNERR ;NULL NAME, SET ERROR FLAG
JRST CKNM30] ;GO RELEASE FREE BLOCK AND RETURN ERROR
HRRZ T2,CKNBLK ;GET ADDRESS OF BLOCK CONTAINING ASCIZ NAME
HRLI T2,(POINT 7,0,35) ;FORM POINTER TO ASCIZ STRING
CKNM10: ILDB T1,T2 ;GET A CHARACTER FROM THE STRUCTURE NAME STRING
JUMPE T1,CKNM20 ;END, SEE IF NAME ALREADY IN DEVICE TABLE
CALL CHRCHK ;GO CHECK THIS CHARACTER
SETOM CKNERR ;FAILED, BAD CHARACTER. SET ERROR FLAG
JRST CKNM10 ;GO CHECK NEXT CHARACTER IN STRING
; HERE TO SEE IF THE NAME IS ALREADY IN THE DEVICE OR LOGICAL NAME TABLES
CKNM20: HRRZ T1,CKNBLK ;GET ADDRESS OF BLOCK CONTAINING ASCIZ STRING
CALL DEVLUX ;CHECK DEVICE TABLES
SKIPA ;OK, NAME NOT YET IN TABLES
JRST [ SETOM CKNERR ;NAME IN DEVICE TABLES. SET ERROR FLAG.
JRST CKNM30] ;GO RELEASE FREE BLOCK AND RETURN ERROR
MOVE T1,CKNBLK ;GET ADDRESS OF BLOCK CONTAINING ASCIZ NAME
MOVEI T2,1 ;LOOK FOR SYSTEM-WIDE LOGICAL NAME
CALL LNMLUK
JRST CKNM30 ;OK, NO SUCH LOGICAL NAME
SETOM CKNERR ;NAME IS LOGICAL NAME. SET ERROR FLAG.
; HERE TO RELEASE FREE BLOCK AND RETURN TO CALLER
CKNM30: MOVEI T1,JSBFRE ;GET FREE HEADER
MOVE T2,CKNBLK ;GET ADDRESS OF FREE BLOCK
CALL RELFRE ;RELEASE THE FREE BLOCK
SKIPE CKNERR ;ANY ERRORS FOUND ?
RETBAD (MSTRX7) ;YES, RETURN ERROR CODE
MOVE T1,CKNNAM ;NO, GET SIXBIT NAME
RETSKP ;RETURN SUCCESS
;MAKHOM - ROUTINE TO CREATE THE HOME BLOCKS FOR ONE UNIT OF A STRUCTURE
;
;ACCEPTS IN P3/ ADDRESS OF USER ARGUMENT BLOCK IN MONITOR SPACE
; CALL MAKHOM
;RETURNS: +1 FAILURE, ERROR CODE IN T1
; +2 Success, Home Blocks created; T1 contains new media ID
IDLEN== .MSIFI-.MSIUI ;LENGTH OF ID INFO FIELDS IN HOME BLOCK
MAKHOM: SAVEP
JSBVAR <MKHERR,MKHNAM,MKHNUM,MKHBLK,MKHMID,<MKHINF,IDLEN>,MKHUSB>,R
CALL LGTAD ;GET THE CURRENT TIME AND DATE
MOVEM T1,MKHMID ;SAVE TIME AND DATE AS MEDIA ID
SETZM MKHERR ;INITIALIZE ERROR REGISTER
; SET UP TO LOOP OVER ALL UNITS IN STRUCTURE
MOVEI P5,.MSTUI(P3) ;COMPUTE ADDRESS OF INFO FOR FIRST UNIT
HRRZ T1,.MSTNU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
MOVN T1,T1 ;GET -<NUMBER OF UNITS IN STRUCTURE>
MOVSI P4,(T1) ;FORM AOBJN POINTER
; COPY ASCIZ STRUCTURE ID FROM USER SPACE
MOVE T1,.MSINM(P3) ;GET POINTER TO STRUCTURE NAME IN USER SPACE
CALL CPYFUS ;COPY STRING FROM USER SPACE
RETBAD (MONX02) ;RETURN "INSUFFICIENT RESOURCES" - JSB FULL
MOVEM T1,MKHBLK ;SAVE ADDRESS OF BLOCK HOLDING STRING
CALL ASCSIX ;CONVERT NAME TO SIXBIT
SETOM MKHERR ;FAILED, NOTE THAT AN ERROR OCCURRED
MOVEM T1,MKHNAM ;SAVE SIXBIT STRUCTURE ID
SKIPN T1 ;CHECK FOR ZERO NAME
SETOM MKHERR ;NONE NOT LEGAL
; RELEASE FREE BLOCK AND RETURN FAILURE IF AN ERROR OCCURRED
MOVEI T1,JSBFRE ;GET FREE HEADER
MOVE T2,MKHBLK ;GET ADDRESS OF BLOCK HOLDING ASCIZ STRING
CALL RELFRE ;RELEASE FREE BLOCK
SKIPE MKHERR ;ANY ERRORS DETECTED ?
RETBAD (MSTX23) ;YES, RETURN "ERROR WRITING HOME BLOCKS"
; CONVERT ID FIELDS FROM ASCII TO PDP-11 "REVERSED-ASCII"
HRRZ T1,.MSINU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
IMULI T1,.MSINO ;COMPUTE NUMBER OF PER-UNIT WORDS IN ARG BLOCK
ADDI T1,.MSIUI-.MSINO(P3) ;FORM SOURCE ADDRESS OF 12 ASCII CHARACTERS
MOVEI T2,MKHINF ;GET DESTINATION FOR PDP-11 ASCII
CALL CNVINF ;GO CONVERT UNIT ID INTO PDP-11 ASCII
HRRZ T1,.MSINU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
IMULI T1,.MSINO ;COMPUTE NUMBER OF PER-UNIT WORDS IN ARG BLOCK
ADDI T1,.MSIOI-.MSINO(P3) ;FORM SOURCE ADDRESS OF 12 ASCII CHARACTERS
MOVEI T2,.MSIOI-.MSIUI+MKHINF ;GET DESTINATION FOR PDP-11 ASCII
CALL CNVINF ;GO CONVERT UNIT ID INTO PDP-11 ASCII
; ..
; ..
; GET # OF PAGES TO ALLOCATE FOR SWAPPING FROM USER ARGUMENT BLOCK
HRRZ T3,.MSINU(P3) ;GET # OF UNITS IN STRUCTURE
IMULI T3,.MSINO ;COMPUTE # OF PER-UNIT WORDS
ADDI T3,.MSISW-.MSINO(P3) ;ADD OFFSET TO SWAPPING SPACE ARGUMENT
MOVE P1,(T3) ;GET # OF PAGES TO ALLOCATE FOR SWAPPING
; SET UP TO CREATE THE HOME BLOCKS ON THIS UNIT (P1 IS ALREADY SET UP)
MKHOM1: HRL T4,.MSINU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
HRR T4,P4 ;GET UNIT # WITHIN STRUCTURE
DMOVE T1,.MSICH(P5) ;GET CHANNEL AND CONTROLLER NUMBERS
MOVE T3,.MSIUN(P5) ;ALSO GET UNIT NUMBER
CALL CKUPAK ;CREATE THE CKU NUMBER FROM THEM
MOVEM P3,MKHUSB ;STORE USER BLOCK ADDRESS
HRRZ T3,.MSINU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
IMULI T3,.MSINO ;COMPUTE # OF PER-UNIT WORDS
ADDI T3,.MSISN-.MSINO(P3) ;ADD OFFSET OF SERIAL NUMBER ARGUMENT
MOVE P3,(T3) ;GET SERIAL NUMBER OF CPU FOR BOOTING
MOVE T3,T1 ;PUT INTO RIGHT AC
MOVE T2,MKHNAM ;GET SIXBIT STRUCTURE ID
MOVEI T1,MKHINF ;GET ADDRESS OF ID INFO
MOVE P2,MKHMID ;GET MEDIA ID (PACK UNIQUE CODE)
CALL CRTHOM ;CREATE THE HOME BLOCKS
JRST [ MOVE P3,MKHUSB ;FAILED, RESTORE P3
RETBAD (MSTX23)] ;RETURN "ERROR WRITING HOME BLOCKS"
; GO BACK AND WRITE THE HOME BLOCKS FOR THE NEXT UNIT
MOVE P3,MKHUSB ;RESTORE P3
ADDI P5,.MSTNO ;POINT TO NEXT SET OF PER-UNIT ARGUMENTS
AOBJN P4,MKHOM1 ;LOOP OVER ALL UNITS IN THE STRUCTURE
MOVE T1,MKHMID ;Put the ID in T1 upon success return
RETSKP ;RETURN SUCCESS
;CNVINF - ROUTINE TO CONVERT 12 ASCII CHARACTERS TO PDP-11 ASCII
;
;ACCEPTS IN T1/ ADR OF SOURCE (12 ASCII CHARACTERS)
; T2/ ADR OF DESTINATION FOR PDP-11 ASCII
; CALL CNVINF
;RETURNS: +1 ALWAYS, PDP-11 ASCII PLACED AT DESTINATION
CNVINF: STKVAR <CNVCHR>
MOVSI T4,<-^D12/4> ;ID INFO FIELDS CONTAIN 12 CHARACTERS
SUBI T1,1 ;POINT TO <SOURCE-ADDRESS>-1
HRLI T1,(POINT 7,0,35) ;FORM ILDB POINTER TO SOURCE ASCII CHARACTERS
; LOOP OVER EACH WORD IN THE DESTINATION AREA
CNVIN2: HRLI T2,(POINT 8,0,9) ;FORM POINTER TO FIRST PDP-11 CHAR IN WORD
ILDB T3,T1 ;GET A CHARACTER FROM ASCII SOURCE STRING
MOVEM T3,CNVCHR ;SAVE CHARACTER
ILDB T3,T1 ;GET NEXT CHARACTER FROM SOURCE STRING
DPB T3,T2 ;STORE FIRST CHARACTER INTO DESTINATION STRING
MOVE T3,CNVCHR ;RESTORE FIRST SOURCE CHARACTER
IDPB T3,T2 ;STORE NEXT PDP-11 CHARACTER INTO DESTINATION
HRLI T2,(POINT 8,0,27) ;FORM POINTER TO THIRD CHARACTER IN DEST WORD
ILDB T3,T1 ;GET NEXT CHARACTER FROM SOURCE STRING
MOVEM T3,CNVCHR ;SAVE CHARACTER
ILDB T3,T1 ;GET NEXT CHARACTER FROM SOURCE STRING
DPB T3,T2 ;STORE THIRD CHARACTER IN DESTINATION WORD
MOVE T3,CNVCHR ;RESTORE FIRST SOURCE CHARACTER
IDPB T3,T2 ;STORE FOURTH (LAST) CHARACTER IN DEST WORD
ADDI T2,1 ;POINT TO NEXT WORD IN DESTINATION
AOBJN T4,CNVIN2 ;LOOP OVER ALL WORDS IN DESTINATION
RET ;RETURN
;STRINI - SET UP DIRECTORIES, BIT TABLE, AND FRONT-END FILE-SYSTEM FOR
; A STRUCTURE BEING INITIALIZED.
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ # OF PAGES TO ALLOCATE FOR THE FE FILE-SYSTEM
; T3/ # OF PAGES TO ALLOCATE FOR THE BOOTSTRAP.BIN FILE
; CALL STRINI
;RETURNS: +1 FAILURE, ERROR CODE IN T1
; +2 SUCCESS
STRINI: SAVEP
STKVAR <STINIS,STINIB,STINIF,STINIE,STINIT>
MOVEM T1,STINIS ;SAVE STRUCTURE NUMBER
MOVEM T2,STINIF ;SAVE # OF PAGES FOR FE FILE-SYSTEM
MOVEM T3,STINIT ;SAVE # OF PAGES FOR BOOTSTRAP.BIN
MOVE T3,STRTAB(T1) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
MOVEM T3,STINIB ;SAVE SDB ADDRESS
MOVE T1,STINIS ;YES, GET THE STRUCTURE NUMBER
CALL CRTBTB ;GO CREATE THE BIT TABLE FOR THIS STRUCTURE
RETBAD (MSTX12) ;FAILED, RETURN ERROR
MOVE T1,STINIB ;GET ADDRESS OF SDB FOR THIS STRUCTURE
LOAD T1,STRRXB,(T1) ;GET DISK ADDRESS OF ROOT-DIRECTORY INDEX BLOCK
MOVE T2,STINIS ;GET THE STRUCTURE NUMBER
CALL NEWIB ;GO SET UP A NEW ROOT-DIRECTORY INDEX BLOCK
RETBAD (MSTRX8) ;FAILED, COULD NOT GET OFN FOR ROOT-DIRECTORY
CALL RELOFN ;RELEASE THE OFN
MOVE T3,STINIB ;GET ADDRESS OF SDB
LOAD T1,STRBXB,(T3) ;GET THE BACKUP ROOT-DIR INDEX BLOCK ADDRESS
MOVE T2,STINIS ;GET THE STRUCTURE NUMBER
CALL NEWIB ;ASSIGN THE BACKUP ROOT-DIR INDEX BLOCK ADDRESS
JRST [ MOVX T1,MSTX13 ;FAILED, GET "BAD BACKUP ROOT-DIR" ERROR CODE
JRST STIER1 ] ;GO RELEASE ROOT-DIR OFN AND RETURN ERROR
CALL RELOFN ;RELEASE THE OFN OF THE BACKUP ROOT-DIR
MOVE T1,STINIS ;GET THE STRUCTURE NUMBER
CALL SETRDO ;GO GET AN OFN FOR THE ROOT-DIRECTORY
RETBAD (MSTRX8) ;FAILED, COULD NOT GET AN OFN FOR ROOT-DIRECTORY
CALL ASGPAG ;GET PAGE
JRST [ MOVX T1,MSTX11 ;CAN'T INIT INDEX TABLE
JRST STIER1]
MOVEM T1,FKXORA ;SET NEW ORIGIN FOR IDXORA
MOVEI T4,ROOTDN ;SUPERIOR DIR IS SELF
MOVE T3,STINIB ;YES, GET ADDRESS OF SDB
LOAD T3,STRRXB,(T3) ;GET ADDRESS OF ROOT-DIR INDEX BLOCK
MOVEI T2,0 ;NO FDB ADDRESS YET
MOVEI T1,ROOTDN ;GET ROOT-DIRECTORY DIRECTORY NUMBER
CALL SETIDX ;GO SET UP ENTRY FOR ROOT-DIR IN INDEX TABLE
JRST [ MOVX T1,MSTX11 ;COULD NOT SET UP INDEX TABLE
JRST STIER2 ] ;RETURN ERROR TO USER
MOVEI T1,ROOTDN ;GET ROOT-DIRECTORY NUMBER
MOVE T2,STINIS ;GET STRUCTURE NUMBER
CALL DIRINI ;GO INITIALIZE THE ROOT-DIRECTORY
JRST [ MOVX T1,MSTX10 ;ROOT-DIRECTORY BAD
JRST STIER2 ] ;GO RETURN ERROR CODE TO USER
MOVE T1,STINIS ;GET THE STRUCTURE NUMBER
CALL FILCRD ;GO SET UP THE STANDARD SYSTEM DIRECTORIES
MOVE T1,STINIS ;GET THE STRUCTURE NUMBER
CALL WRTBTB ;GO SET UP THE BIT TABLE
JRST [ MOVX T1,MSTX12 ;ERROR, GET CODE
JRST STIER2] ;RETURN ERROR CODE TO USER
MOVE T1,STINIS ;GET STRUCTURE NUMBER
MOVE T2,STINIF ;GET # OF PAGES FOR FE FILE-SYSTEM
CALL FEFSYS ;IF A PUBLIC STRUCTURE, SET UP FRONT-END STUFF
JFCL ;FAILED, IGNORE FAILURE
MOVE T1,STINIS ;GET STRUCTURE NUMBER
MOVE T2,STINIT ;GERT # OF PAGES FOR BOOTSTRAP.BIN
CALL BOTSYS ;SET UP BOOTSTRAP.BIN
JFCL ;FAILED? IGNORE?
MOVE T1,STINIB ;SDB ADDRESS
LOAD T1,STRRDO,(T1) ;GET OFN OF <ROOT-DIRECTORY>
HRLZS T1 ;OFN,,0
MOVEI T2,1000
CALL UPDPGS ;UPDATE FILE PAGES
MOVE T1,STINIB ;SDB ADDRS
LOAD T1,STRRDO,(T1) ;OFN AGAIN
CALL UPDOFN ;FIX INDEX BLOCK ALSO
MOVE T1,FKXORA ;IDX ORIGIN
CALL RELPAG ;FREE PAGE
SETZM FKXORA ;ZERO SPECIAL FORK IDXORA
RETSKP ;RETURN SUCCESS
; HERE ON AN ERROR TO RELEASE OFN OF ROOT-DIR AND RETURN ERROR CODE
STIER2: MOVEM T1,STINIE ;SAVE ERROR CODE
MOVE T1,FKXORA ;IDX ORIGIN
CALL RELPAG ;FREE PAGE
SETZM FKXORA ;ZERO SPECIAL FORK IDXORA
SKIPA ;DON'T RESAVE ERROR CODE
STIER1: MOVEM T1,STINIE ;SAVE ERROR CODE
MOVE T1,STINIB ;GET ADDRESS OF SDB
LOAD T1,STRRDO,(T1) ;GET OFN OF ROOT-DIRECTORY
CALL RELOFN ;RELEASE THE OFN
MOVE T1,STINIE ;RESTORE THE ERROR CODE
RETBAD ;GIVE FAIL RETURN
; ROUTINE TO RELEASE IDX TABLE PAGE
;UNICHK - ROUTINE TO CHECK THAT EACH UNIT SPECIFIED AS PART OF THE STRUCTURE
; IS OF THE CORRECT TYPE.
;
;ACCEPTS IN P3/ ADDRESS OF USER'S ARGUMENT BLOCK IN MONITOR SPACE
; CALL UNICHK
;RETURNS: +1 FAILED, ONE OF THE UNITS SPECIFIED IS INVALID
; +2 SUCCESS, ALL OF THE CHANNEL, CONTROLLER, AND UNIT #'S ARE OK
UNICHK: SAVEP
STKVAR <UCKTYP> ;UNIT TYPE
MOVEI P2,.MSTUI(P3) ;COMPUTE ADDRESS OF INFO FOR FIRST UNIT
HRRZ T1,.MSTNU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
MOVN P1,T1 ;GET -<NUMBER OF UNITS IN STRUCTURE>
MOVSI P1,(P1) ;FORM AOBJN POINTER
; TOP OF LOOP OVER ALL UNIT SPECIFICATIONS
UNICK1: DMOVE T1,.MSTCH(P2) ;GET CHANNEL AND CONTROLLER NUMBERS FROM USER
MOVE T3,.MSTUN(P2) ;ALSO GET UNIT NUMBER FROM USER
CALL CHKCKU ;VERIFY THEM AND RETURN UDB IN T1
RETBAD () ;THEY'RE BAD, RETURN ERROR CODE
TRNN P1,-1 ;DOING FIRST UNIT IN THE STRUCTURE ?
JRST UNICK2 ;YES, DO NOT CHECK UNIT TYPE, JUST SAVE IT
CAME T2,UCKTYP ;NO, IS UNIT TYPE CORRECT ?
RETBAD (MSTX17) ;NO, RETURN "MIXED UNITS IN STRUCTURE" ERROR
UNICK2: MOVEM T2,UCKTYP ;SAVE UNIT TYPE
CALL GETSTR ;GET STRUCTURE INFORMATION FOR UNIT
JRST [ MOVE T2,T1 ;FAILED, COPY ERROR FLAGS
TXNE T2,MS%OFL ;IS UNIT OFF-LINE ?
RETBAD (MSTRX5) ;YES, RETURN "UNIT OFF LINE" ERROR
RETBAD (MSTX15)] ;RETURN "UNIT BEING DIAGNOSED" ERROR
TXNE T3,MS%WLK ;UNIT WRITE LOCKED ?
RETBAD (MSTX34) ;YES, RETURN "WRITE LOCKED UNIT" ERROR
CAME T1,[-1] ;IS UNIT ALREADY PART OF A STRUCTURE ?
RETBAD (MSTX19) ;YES, RETURN "UNIT ALREADY IN STRUCTURE" ERROR
ADDI P2,.MSTNO ;POINT TO NEXT BLOCK OF PER-UNIT INFORMATION
AOBJN P1,UNICK1 ;LOOP OVER ALL UNITS IN STRUCTURE
; HERE IF ALL UNIT SPECIFICATIONS CHECKED OUT OK - RETURN SUCCESS
RETSKP ;RETURN SUCCESS, ALL UNITS OK
;HOMCHK - ROUTINE TO CHECK AND, IF NECESSARY, FIX THE HOME BLOCKS
;
;ACCEPTS IN Q1/ ADDRESS OF USER'S ARGUMENT BLOCK IN USER SPACE
; Q2/ FUNCTION CODE (.MSMNT OR .MSINI)
; P3/ ADDRESS OF USER'S ARGUMENT BLOCK IN MONITOR SPACE
; CALL HOMCHK
;RETURNS: +1 FAILURE, ERROR CODE IN T1
; +2 SUCCESS, T1/ STRUCTURE NUMBER
HOMCHK: SAVEP
STKVAR <HCKSTR,HCKSDB,HCKADR,HCKPAG,HCKUNI,HCKBLK,HCKERR>
SETZM HCKSDB ;INITIALIZE ADDRESS OF SDB
MOVEI P2,.MSTUI(P3) ;COMPUTE ADDRESS OF INFO FOR FIRST UNIT
HRRZ T1,.MSTNU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
MOVN P1,T1 ;GET -<NUMBER OF UNITS IN STRUCTURE>
MOVSI P1,(P1) ;FORM AOBJN POINTER
; HERE TO READ AND CHECK THE HOME BLOCKS FOR THE CURRENT UNIT
HOMCK1: DMOVE T1,.MSTCH(P2) ;GET CHANNEL AND CONTROLLER NUMBERS FROM USER
MOVE T3,.MSTUN(P2) ;GET UNIT NUMBER FROM USER
STOR T1,DOP%C2,HCKUNI ;REMEMBER CHANNEL NUMBER FOR LATER
STOR T2,DOP%K2,HCKUNI ;AND CONTROLLER NUMBER (MAYBE -1)
STOR T3,DOP%U2,HCKUNI ;AND UNIT NUMBER
CALL MSTRHB ;GO READ THE HOME BLOCKS FOR THIS UNIT
JRST HCKER2 ;FAILED, GO RETURN ERROR CODE
MOVEM T1,HCKADR ;SUCCESS, SAVE VIRTUAL ADDRESS OF HOME BLOCKS
MOVEM T2,HCKPAG ;SAVE PHYSICAL PAGE NUMBER OF HOME BLOCKS
;..
;..
; CHECK THE HOME BLOCKS FOR THIS UNIT
CALL MSTHBC ;GO CHECK THE HOME BLOCKS
MOVE Q1,T1 ;COPY FLAGS INDICATING GOOD HOME BLOCKS
MOVE T1,.MSTNM(P3) ;GET STRUCTURE NAME FROM USER
CALL CPYFUS ;COPY STRING FROM USER SPACE
JRST [ MOVX T1,MSTRX4 ;FAILED, GET "INSUFFICIENT RESOURCES" ERROR
JRST HCKER1 ] ;GO RELEASE HOME BLOCK PAGE AND RETURN ERROR
MOVEM T1,HCKBLK ;SAVE ADDRESS OF BLOCK HOLDING STRING
CALL ASCSIX ;CONVERT ASCIZ STRING TO SIXBIT
JRST [ MOVE T2,HCKBLK ;FAILED, GET ADDRESS OF BLOCK
MOVEI T1,JSBFRE ;GET FREE HEADER
CALL RELFRE ;RELEASE FREE BLOCK
MOVX T1,MSTRX7 ;GET "INVALID STRUCTURE NAME" ERROR
JRST HCKER1 ] ;GO RETURN ERROR TO USER
JUMPE T1,.-1 ;ERROR IF NO NAME
MOVE T2,HCKADR ;GET VIRTUAL ADDRESS OF FIRST HOME BLOCK
HRLZ T3,.MSTNU(P3) ;GET NUMBER OF UNITS IN STRUCTURE
HRR T3,P1 ;GET LOGICAL UNIT NUMBER OF THIS UNIT IN STR
CAMN T3,HOMLUN(T2) ;CORRECT LOGICAL UNIT ?
CAME T1,HOMSNM(T2) ;STRUCTURE NAME OK FOR HOME BLOCK 1 ?
TXZ Q1,HB%1OK ;NO, MARK THAT FIRST HOME BLOCK IS BAD
SKIPN HOMRXB(T2) ;IS THERE A DISK ADDRESS FOR THE ROOT-DIR XB ?
TXZ Q1,HB%1OK ;NO, FIRST HOME BLOCK IS BAD
ADDI T2,HBLEN ;GET ADDRESS OF SECOND HOME BLOCK
CAMN T3,HOMLUN(T2) ;CORRECT LOGICAL UNIT NUMBER ?
CAME T1,HOMSNM(T2) ;STRUCTURE NAME OF SECOND HOME BLOCK OK ?
TXZ Q1,HB%2OK ;NO, MARK SECOND HOME BLOCK IS BAD
SKIPN HOMRXB(T2) ;IS THERE A DISK ADDRESS FOR THE ROOT-DIR XB ?
TXZ Q1,HB%2OK ;NO, SECOND HOME BLOCK IS BAD
MOVE T2,HCKBLK ;GET ADDRESS OF BLOCK HOLDING STRING
MOVEI T1,JSBFRE ;GET FREE HEADER
CALL RELFRE ;RELEASE BLOCK HOLDING NAME STRING
JUMPE Q1,[MOVX T1,MSTRX6 ;IF BOTH HOME BLKS BAD, GET ERROR CODE
JRST HCKER1 ] ;GO RELEASE HOME BLOCK PAGE AND RETURN ERROR
; CHECK FOR ONE BAD HOME BLOCK, FIX UP IF NEEDED
TXNE Q1,HB%1OK ;FIRST HOME BLOCK OK ?
TXNN Q1,HB%2OK ; AND ALSO SECOND HOME BLOCK ?
SKIPA ;NO, AT LEAST ONE IS BAD
JRST HOMCK4 ;YES, GO ON TO NEXT UNIT
MOVE T1,.MSTFL(P3) ;GET FLAGS FROM USER
TXNE T1,MS%NFH ;USER WANT A BAD HOME BLOCK REPAIRED ?
JRST [ MOVX T1,MSTRX6 ;NO, GET "BAD HOME BLOCKS" ERROR CODE
JRST HCKER1 ] ;RELEASE HOME BLOCK PAGE AND SDB, RETURN ERROR
HRRZ T1,HCKADR ;GET VIRTUAL ADDRESS OF FIRST HOME BLOCK
HRRZ T2,HCKPAG ;GET PHYSICAL PAGE NUMBER OF HOME BLOCK PAGE
LSH T2,PGSFT ;FORM PHYSICAL ADDRESS OF FIRST HOME BLOCK
MOVE T3,HCKUNI ;GET CKU NUMBERS FOR THE UNIT
MOVE P5,HCKSTR ;GET STRUCTURE NUMBER
MOVE P4,HCKSDB ;GET ADDRESS OF SDB FOR THIS STRUCTURE
ADDI P4,SDBUDB(P1) ;FORM SDBUDB POINTER
TXNN Q1,HB%1OK ;IS HOME BLOCK 1 THE GOOD ONE ?
JRST HOMCK3 ;NO, GO COPY SECONDARY TO PRIMARY
CALL CPYH1 ;YES, COPY PRIMARY HOME BLOCK TO SECONDARY
JRST HCKER1 ;FAILED, RETURN ERROR TO USER
JRST HOMCK4 ;SUCCESS, HOME BLOCK FIXED. GO ON TO NEXT UNIT
HOMCK3: ;HERE TO COPY SECONDARY TO PRIMARY
CALL CPYH2 ;COPY SECONDARY HOME BLOCK OVER PRIMARY
JRST HCKER1 ;FAILED, RETURN ERROR TO USER
; ..
; ..
; SET UP AND CHECK STRTAB AND SDB FOR THIS STRUCTURE
HOMCK4: TRNE P1,-1 ;IS THIS FIRST UNIT IN STRUCTURE ?
JRST HOMCK2 ;NO, GO ADD THIS UNIT TO STRUCTURE
MOVE T1,HCKADR ;YES, GET ADDRESS OF HOME BLOCK PAGE
MOVE T2,HCKUNI ;GET CHANNEL, CONTROLLER, AND UNIT NUMBERS
CALL MAKSDB ;GO CREATE AN SDB FOR THIS STRUCTURE
JRST HCKER1 ;FAILED, NO STRTAB SLOTS LEFT
MOVEM T1,HCKSDB ;SAVE ADDRESS OF SDB
MOVEM T2,HCKSTR ;SAVE STRUCTURE NUMBER
HOMCK2: MOVE T1,HCKUNI ;GET CHANNEL, CONTROLLER, AND UNIT NUMBERS
MOVE T2,HCKADR ;GET ADDRESS OF HOME BLOCK PAGE
MOVE T3,HCKSDB ;GET ADDRESS OF SDB
CALL BLDSDB ;GO ADD THIS UNIT TO THE STRUCTURE
JRST HCKER1 ;FAILED, RELEASE PAGE AND RETURN ERROR
; SET UP UDBSTR AND SDBUDB WORDS FOR UNIT AND STRUCTURE
MOVE T1,HCKUNI ;GET CKU NUMBERS
HRR T2,HCKSTR ;GET STRUCTURE NUMBER
HRL T2,P1 ;GET UNIT IN STRUCTURE,,STRUCTURE NUMBERS
MOVE T3,HCKSDB ;GET SDB ADDRESS
CALL SETSTR ;GO SETUP UDBSTR AND SDBUDB WORDS
;..
;..
; UNLOCK AND RELEASE THE PAGE USED FOR READING THE HOME BLOCKS
MOVE T1,HCKPAG ;GET ADDRESS OF HOME BLOCK PAGE
CALL MULKCR ;UNLOCK THE PAGE
MOVE T1,HCKADR ;GET ADDRESS OF PAGE AGAIN
CALL RELPAG ;RELEASE THE PAGE
; LOOP BACK TO PROCESS ALL UNITS IN THE STRUCTURE
ADDI P2,.MSTNO ;STEP TO NEXT CHANNEL, CONTROLLER, AND UNIT
AOBJN P1,HOMCK1 ;LOOP OVER ALL UNITS IN STRUCTURE
MOVE T1,HCKSTR ;GET STRUCTURE NUMBER
RETSKP ;RETURN SUCCESS
; HERE ON AN ERROR TO RELEASE HOME BLOCK PAGE AND RETURN ERROR
HCKER1: MOVEM T1,HCKERR ;SAVE ERROR CODE
MOVE T1,HCKPAG ;GET PHYSICAL PAGE NUMBER NOW LOCKED
CALL MULKCR ;GO UNLOCK THE PAGE
MOVE T1,HCKADR ;GET ADDRESS OF HOME BLOCK PAGE
CALL RELPAG ;RELEASE THE PAGE
MOVE T1,HCKERR ;RESTORE ERROR CODE AGAIN
;FALL INTO HCKER2
HCKER2: MOVEM T1,HCKERR ;SAVE ERROR CODE
SKIPE T1,HCKSDB ;IS THERE AN SDB YET ?
CALL CLRSTR ;YES, GO REMOVE PHYSIO POINTERS IN UDB'S
MOVE T1,HCKSTR ;GET STRUCTURE NUMBER
SKIPE HCKSDB ;WAS STRTAB SET UP YET ?
CALL CLRSTB ;CLEAR THE STRTAB ENTRY
MOVE T1,HCKERR ;GET ERROR CODE BACK
RETBAD () ;RETURN ERROR CODE TO CALLER
;MAKSDB - ROUTINE TO CREATE A NEW SDB FOR A STRUCTURE
;
;ACCEPTS IN T1/ ADDRESS OF PAGE CONTAINING HOME BLOCKS FOR THIS UNIT
; T2/ CKU NUMBERS (CHAN, CTRL, AND UNIT NUMBER)
; CALL MAKSDB
;RETURNS: +1 FAILURE, ERROR CODE IN T1 (I.E., NO SDB'S AVAILABLE)
; +2 SUCCESS, WITH:
; T1/ ADDRESS OF SDB
; T2/ STRUCTURE NUMBER
MAKSDB: STKVAR <MKSHOM,MKSSTR,MKSCKU>
MOVEM T1,MKSHOM ;SAVE HOME BLOCK PAGE ADDRESS
MOVEM T2,MKSCKU ;AND THE CKU NUMBER
MOVSI T3,-STRN ;SET UP TO LOOP THROUGH STRTAB
NOSKED ;INSURE THAT STRTAB IS NOT CHANGED WHILE WE LOOK
SKIPE STRTAB(T3) ;FOUND A FREE SDB ?
AOBJN T3,.-1 ;NO, KEEP LOOKING
JUMPGE T3,MKSDB6 ;FAIL IF NO FREE SDB SLOTS
MOVEM T3,MKSSTR ;SAVE STRUCTURE NUMBER
MOVE T2,MKSHOM ;GET ADDRESS OF HOME BLOCK PAGE
MOVE T1,MKSCKU ;GET CKU NUMBERS
CALL BLDNEW ;GO CREATE THE SDB FOR THE NEW STRUCTURE
JRST MKSDB6 ;FAILED, GO OKSKED AND RETURN ERROR
HRRZ T2,MKSSTR ;GET STR NUMBER AGAIN (SDB ADR ALREADY IN T1)
OKSKED ;PERMIT SCHEDULING AGAIN
RETSKP ;RETURN
; NO FREE SDB'S WERE FOUND
MKSDB6: OKSKED ;PERMIT SCHEDULING AGAIN
RETBAD (MONX05) ;INSUFICIENT RESOURCES - NO RESIDENT FREE SPACE
; .MSDIS - DISMOUNT A FILE STRUCTURE
; LOCAL VARIABLE USAGE --
;
; MSTDMS - STRUCTURE NUMBER OF STRUCTURE BEING DISMOUNTED
; MSTDMB - ADDRESS OF SDB FOR STRUCTURE BEING DISMOUNTED
; MSTDMN - ASCIZ STRUCTURE NAME STRING FOR USE IN MESSAGES
; MSTDME - TEMPORARILY HOLDS ERROR CODE
; MSTDMU - STRUCTURE UNIQUE CODE
MSTDIS: STKVAR <MSTDMS,MSTDMB,MSTDME,<MSTDMN,2>,MSTDMU>
; VERIFY THAT THE USER HAS THE REQUIRED CAPABILITIES TO DISMOUNT THE STRUCTURE
MSTD00: MOVE T1,CAPENB ;GET CURRENTLY ENABLED CAPABILITIES
TXNN T1,SC%WHL!SC%OPR ;WHEEL OR OPERATOR ?
RETBAD (MSTRX2) ;NO, RETURN ERROR CODE TO USER
; CHECK THE SIZE OF THE ARGUMENT BLOCK
XCTU [HLRZ T1,1] ;GET SIZE OF BLOCK FROM USER
CAIGE T1,1 ;AT LEAST ONE WORD SPECIFIED ?
RETBAD (MSTRX3) ;NO, RETURN "ARG BLOCK TOO SMALL" ERROR CODE
; VERIFY THAT THE SPECIFIED STRUCTURE IS MOUNTED
UMOVE T1,2 ;GET ADDRESS OF ARGUMENT BLOCK FROM USER
UMOVE T1,.MSDNM(T1) ;GET NAME OF STRUCTURE TO DISMOUNT
CALL FNDSTR ;IS STRUCTURE NOW MOUNTED ?
RETBAD (MSTX21) ;NO, RETURN "STRUCTURE NOT MOUNTED" ERROR CODE
MOVEM T1,MSTDMS ;YES, SAVE STRUCTURE NUMBER
CAIN T1,PSNUM ;TRYING TO DISMOUNT THE PUBLIC STRUCTURE ?
JRST [ MOVX T1,MSTX24 ;YES, GET "ILLEGAL TO DISMOUNT SYSTEM STR"ERROR
JRST MSDER1 ] ;GO UNLOCK THE STRUCTURE AND RETURN ERROR
MOVE T2,T1 ;use T2 instead of T1
ADDI T2,DEVCH1+DVXST0 ;compute address in DEVCH1
MOVE T3,(T2) ;get device characterists
TXNE T3,D1%INI ;device being initialized?
JRST [ MOVX T2,MSTX43 ;yes, get "illegal to dismount while INITing"
JRST MSDER1] ;go unlock the structure and return error
MOVE T2,STRTAB(T1) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
MOVEM T2,MSTDMB ;SAVE ADDRESS OF SDB
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL STRCNV ;GET UNIQUE CODE FOR THIS STRUCTURE
JFCL ;CANNOT FAIL WHILE STRUCTURE IS LOCKED
MOVEM T1,MSTDMU ;STORE STRUCTURE UNIQUE CODE
; SAVE THE STRUCTURE NAME FOR LATER USE IN ADVISORY MESSAGE
MOVE T2,T1 ;GET STRUCTURE UNIQUE CODE
HRLI T2,.DVDES+.DVDSK ;GET DEVICE TYPE
HRROI T1,MSTDMN ;GET POINTER TO WHERE NAME WILL GO
DEVST ;GET STRUCTURE NAME
JRST [ MOVX T1,MSTX21 ;FAILED, GET "STRUCTURE NOT MOUNTED" ERROR
JRST MSDER1 ] ;GO UNLOCK STRUCTURE AND RETURN
MOVE T1,MSTDMU ;GET STRUCTURE UNIQUE CODE
MOVEI T2,MSTDMN ;GET ADDRESS OF STRUCTURE NAME
CALL FIXJOB ;GO FIX JSB'S OF ALL JOBS ON SYSTEM
; ..
; ..
; THE DATABASE PERTINENT TO THE STRUCTURE TO BE DISMOUNTED MAY CURRENTLY
; BE IN USE, E.G. BY ANOTHER JSYS. IT IS NECESSARY TO WAIT UNTIL THE
; STRUCTURE IS AVAILABLE (THE LOCK IS FREE), AND THEN TO PREVENT ANY
; ADDITIONAL USE OF THE STRUCTURE. THIS IS DONE NOSKED TO PREVENT RACES.
; NOTE: SINCE THIS JSYS HAS LOCKED THE STRUCTURE, THE LOCK WILL BE 'FREE'
; WHEN THE LOCK COUNT IS 1, NOT 0.
MSTD10: CALL LCKDVL ;LOCK THE DEVICE TABLE LOCK
LOCK STRLOK,<JRST MSTD11> ;LOCK DISMOUNT LOCK
NOSKED ;DO NOT PERMIT DATABASE TO CHANGE
; DURING THIS TEST !
MOVE T1,MSTDMB ;GET ADDRESS OF SDB FOR THIS STRUCTURE
LOAD T2,STRLK,(T1) ;GET THE LOCK COUNT
CAIN T2,1 ;IS THE LOCK FREE ?
JRST MSTD20 ;YES, GO PREVENT FURTHER ACCESS TO THE STR
UNLOCK STRLOK
UNLOKK DEVLKK ;UNLOCK THE DEVICE TABLE LOCK
OKINT ;UNDO NOINT (FROM FNDSTR)
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE WHILE WE WAIT
OKSKED ;OK FOR OTHERS TO RUN NOW
HRLZ T1,MSTDMS ;SET UP FOR SCHEDULER TEST - STR NUMBER
HRRI T1,STRTST ;GO OKSKED AND WAIT UNTIL THE LOCK BECOMES FREE
MOVEI T2,^D200 ;HOLD TIME
HDISMS ;BYE BYE
JRST MSTD00 ;START OVER
; HERE WHEN WE CAN'T GET BOTH THE DEVICE AND STRUCTURE LOCKS
MSTD11: UNLOKK DEVLKK ;UNLOCK THE DEVICE TABLE LOCK
OKINT ;UNDO NOINT FROM FNDSTR
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
MOVEI T1,^D200 ;WAIT FOR A LITTLE BIT
DISMS
JRST MSTD00 ;AND START OVER
; SCHEDULER TEST TO SEE IF THE STRUCTURE LOCK IS FREE
; 1/ ADDRESS OF SDB FOR THIS STRUCTURE
RESCD
STRTST: SKIPN T2,STRTAB(T1) ;GET SDB ADDRESS IF ANY
JRST 1(4) ;NONE. ALREADY GONE.
JE STRLK,(T2),1(4) ;FREE, SUCCEED
JRST 0(4) ;LOCK STILL INCREMENTED, FAIL
SWAPCD
; HERE WHEN THE LOCK IS FREE - CLEAR THE UNIQUE CODE TO PREVENT FURTHER ACCESS
MSTD20: MOVE T2,MSTDMB ;GET ADDRESS OF SDB FOR THIS STRUCTURE
SETZRO STRUC,(T2) ;CLEAR THE UNIQUE CODE FOR THIS STRUCTURE
SETONE STDIS,(T2) ;MARK THAT STRUCTURE IS BEING DISMOUNTED
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL DEVSTR ;FIX DEVICE TABLES AS THEY WERE PRIOR TO MOUNT
OKSKED ;PERMIT SCHEDULING AGAIN
UNLOKK DEVLKK ;UNLOCK THE DEVICE TABLE LOCK
UNLOCK STRLOK ;RELEASE DISMOUNT LOCK AS WELL
; ..
; ..
; UNMAP CURRENTLY MAPPED DIRECTORY AND RELEASE STRUCTURE-RELATED OFN'S
CALL UNMAPD ;UNMAP CURRENTLY MAPPED DIRECTORY
MOVE T1,MSTDMS ;Get structure number again
CALL STROFL ;See if it is on-line
IFSKP. ;If so
MOVE T1,MSTDMB ;GET ADDRESS OF SDB FOR THIS STRUCTURE
CALL MSTUPO ;UPDATE ALL OF THE OFNS
ENDIF.
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL MRKOFN ;GO MARK OFN'S ON THIS STRUCTURE
MOVE T1,MSTDMB ;GET SDB ADDRESS FOR THIS STRUCTURE
CALL MSTRLO ;RELEASE ALL OF THE OFN'S
; RETURN THE PHYSIO DATABASE TO ITS ORIGINAL STATE, BREAK PATH TO THIS SDB
MSTD50:
; IFN CFSCOD,<
MOVE T1,MSTDMS ;Get structure number
CALL CFSSDM ;Release resource
; > ;IFN CFSCOD
MOVE T1,MSTDMB ;GET ADDRESS OF SDB
OKINT ;UNDO NOINT FROM FNDSTR
CALL CLRSTR ;FIX UP POINTERS IN UDB'S
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL CLRSTB ;CLEAR THE STRTAB ENTRY
; DATABASE IS NOW CONSISTENT AGAIN
TRVAR <MSTHDR,<MSTRPC,3>>
MOVEI T3,4 ;LENGTH OF ARG BLOCK
HRLI T3,.IPCRS ;SET UP STR REMOVAL CODE
MOVEM T3,MSTHDR
SETO T3,
HLLZM T3,MSTRPC ;SET JOB NUMBER TO -1 & MOUNT COUNT TO 0
MOVE T1,MSTDMU ;GET STRUCTURE UNIQUE CODE
MOVEM T1,1+MSTRPC
CALL LGTAD ;GET TIME AND DATE
MOVEM T1,2+MSTRPC
CALL DISMES ; THAT STRUCTURE IS BEING DISMOUNTED
JFCL ;FAILED
;RETURN TO USER
OKINT ;PERMIT INTERRUPTS AGAIN
RETSKP ;RETURN TO USER
; HERE ON ERRORS FOR WHICH THE STRUCTURE IS LOCKED
MSDER1: MOVEM T1,MSTDME ;SAVE ERROR CODE
MOVE T1,MSTDMS ;GET STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
MOVE T1,MSTDME ;GET ERROR CODE BACK
RETBAD () ;FAIL
;LOCAL ROUTINE TO UPDATE OR RELEASE ALL OF THE OFN'S POINTED TO
;BY AN SDB.
; T1/ ADDRESS OF SDB
;RETURNS +1 ALWAYS
MSTUPO: XMOVEI T2,[HRLZS T1 ;MAKE OFN.PN
MOVEI T2,PGSIZ ;DO ALL PAGES
CALLRET UPDPGS] ;AND GO DO THE UPDTAE
SKIPA
MSTRLO: XMOVEI T2,RELOFN ;ENTRY TO RELEASE OFN'S
ASUBR <MSTDB1,MSTRTN> ;SAVE SDB ADDRESS AND ROUTINE
LOAD T1,STRIDX,(T1) ;GET OFN FOR INDEX TABLE
CALL @MSTRTN ;DO THE ROUTINE
MOVE T1,MSTDB1 ;GET ADDRESSS OF SDB
LOAD T1,STRBTB,(T1) ;GET OFN OF BIT TABLE FILE
SKIPE T1 ;IF NONE DON'T
CALL @MSTRTN ;DO THE ROUTINE
MOVE T1,MSTDB1 ;GET ADDRESS OF SDB
LOAD T1,STRRDO,(T1) ;GET OFN OF ROOT-DIRECTORY FILE
CALLRET @MSTRTN ;DO THE ROUTINE AND RETURN
;FIXJOB - ROUTINE TO PURGE STR INFO FROM ALL JSB'S, AND TO
; ISSUE A MESSAGE TO ALL USERS WHO HAVE:
; 1. ACCESS'ED THIS STRUCTURE
; 2. MOUNTED THIS STRUCTURE
; 3. CONNECTED TO A DIRECTORY ON THIS STRUCTURE
;
;ACCEPTS IN T1/ STRUCTURE UNIQUE CODE
; T2/ ADDRESS OF ASCIZ STRUCTURE NAME
; CALL FIXJOB
;RETURNS: +1 ALWAYS, STR INFO PURGED AND REQUIRED MESSAGES ISSUED
FIXJOB: STKVAR <FXJOBC,FXJOBN>
SAVEP
MOVEM T1,FXJOBC ;SAVE STRUCTURE UNIQUE CODE
MOVEM T2,FXJOBN ;SAVE ADDRESS OF STRUCTURE NAME STRING
MOVSI P1,-NJOBS ;SET UP TO LOOP OVER ALL JOBS IN SYSTEM
; TOP OF LOOP OVER ALL JOBS - MAP THE NEXT JOB'S JSB IF THE JOB EXISTS
FXJB10: SKIPGE JOBRT(P1) ;DOES THIS JOB EXIST ?
JRST FXJB60 ;NO, GO CHECK NEXT JOB
HRRZ T1,P1 ;YES, GET JOB NUMBER
CALL MAPJSB ;MAP THE OBJECT JOB'S JSB
JRST FXJB60 ;JOB DISAPPEARED. GO CHECK NEXT JOB.
MOVEM T1,P2 ;SAVE OFFSET TO JOB'S JSB
SETZM P3 ;INITIALIZE "MESSAGE-NEEDED" FLAG
LOCK JSSTLK(P2) ;LOCK THE STRUCTURE INFO BLOCKS IN JSB
MOVE T1,FXJOBC ;GET STRUCTURE NUMBER
MOVE T2,P2 ;GET OFFSET TO JSB FOR OBJECT JOB
CALL FNDSTM ;GO GET OFFSET TO BLOCK FOR THIS STRUCTURE
JRST FXJB40 ;NOT USING THAT STR, GO CHECK CONNECTED DIR
; HERE TO SEE IF A MESSAGE IS NEEDED DUE TO A MOUNT OR ACCESS COMMAND
SETONE JSSDM,(T2) ;MARK THAT STRUCTURE IS DISMOUNTED
JE JSADN,(T2),FXJB20 ;WAS ANY DIRECTORY ON THIS STR ACCESSED ?
SETOM P3 ;YES, MARK THAT A MESSAGE IS NEEDED
LOAD T1,JSADN,(T2) ;GET DIRECTORY NUMBER THAT WAS ACCESSED
LOAD T2,JSSTN,(T2) ;GET STRUCTURE UNIQUE CODE
HRL T1,T2 ;FORM DIRECTORY DESIGNATOR
CALL SETDIR ;MAP THE ACCESSED DIRECTORY
JRST FXJB40 ;FAILED, GO UNMAP JSB AND GO ON TO NEXT JOB
MOVE T1,P2 ;GET OFFSET TO MAPPED JSB
CALL UNACC ;GO "UN-ACCESS" THE DIRECTORY
JFCL ;SHOULD NOT FAIL
CALL USTDIR ;UNLOCK THE DIRECTORY
FXJB20: JE JSMCI,(T2),FXJB25 ;WAS THIS STRUCTURE MOUNTED ?
SETOM P3 ;YES, MARK THAT A MESSAGE IS NEEDED
SETZRO <JSMCI,JSXCL>,(T2) ;CLEAR STATUS FLAGS
;..
; CHECK IF ANY FORKS HAD STRUCTURE MOUNTED
FXJB25: JE JSFMT,(T2),FXJB30 ;DID FORK MOUNT STRUCTURE
SETOM P3 ;YES, MARK THAT A MESSAGE IS NEEDED
SETZM JSFKMT(T2) ;ZERO FORK USERS
; HERE TO SEE IF THE SLOT FOR THIS STRUCTURE IN THIS JSB MAY BE FREED
FXJB30: MOVE T1,FXJOBC ;GET UNIQUE CODE
MOVE T2,P2 ;GET OFFSET TO MAPPED JSB
CALL FRJSSO ;GO FREE STR BLOCK IN JSB IF NOW FREE
FXJB40: UNLOCK JSSTLK(P2) ;UNLOCK STRUCTURE INFO BLOCK LOCK IN JSB
; SEE IF MESSAGE NEEDED BECAUSE JOB CONNECTED TO STRUCTURE
MOVE T1,P2 ;GET OFFSET TO JSB OF OBJECT JOB
CALL GTOJCD ;GET CONNECTED STR UNIQUE CODE FOR THIS JOB
HLRZ T1,T1 ;KEEP JUST THE STRUCTURE UNIQUE CODE
CAMN T1,FXJOBC ;WAS USER CONNECTED TO A DIRECTORY ON THIS STR ?
SETOM P3 ;YES, MARK THAT A MESSAGE IS NEEDED
FXJB50: CALL CLRJSB ;UNMAP THE JSB FOR THE OBJECT JOB
; ISSUE A MESSAGE IF NECESSARY
SKIPN P3 ;IS A MESSAGE REQUIRED ?
JRST FXJB60 ;NO, GO CHECK NEXT JOB
HLRE T1,JOBPT(P1) ;YES, GET CONTROLLING LINE #
JUMPL T1,FXJB60 ;DETACHED, SKIP MESSAGE
TXO T1,.TTDES ;FORM DEVICE DESIGNATOR
HRROI T2,[ASCIZ/[Structure /]
;**;[7190] Replace 7 lines with 9 at FXJB50+10 CEG 12-Nov-85
TTMSG% ;[7190] OUTPUT FIRST PART OF MESSAGE
ERJMP .+1 ;[7190]
HRRO T2,FXJOBN ;[7190] GET POINTER TO ASCIZ STRUCTURE NAME
TTMSG% ;[7190] OUTPUT STRUCTURE NAME
ERJMP .+1 ;[7190]
HRROI T2,[ASCIZ/ has been dismounted]
/] ;[7190] GET REMAINDER OF MESSAGE
TTMSG% ;[7190] OUTPUT FINAL PART OF MESSAGE
ERJMP .+1 ;[7190]
FXJB60: AOBJN P1,FXJB10 ;LOOP OVER ALL JOBS
RET ;RETURN
;DEVSTR - ROUTINE TO INITIALIZE DEVICE TABLES FOR A FILE STRUCTURE
;
; ACCEPTS IN T1/ STRUCTURE #
; CALL DEVSTR
; RETURNS: +1 ALWAYS
; NOTE: DEVLKK IS ASSUMED TO BE LOCKED BY CALLER.
DEVSTR: STKVAR <DVSSTR>
MOVEM T1,DVSSTR ;SAVE STRUCTURE NUMBER
MOVSI T4,'STR' ;INITIALIZE FIRST PART OF DEVICE NAME
IDIVI T1,100 ;ISOLATE HIGH ORDER DIGIT OF STRUCTURE NUMBER
ADDI T1,'0' ;CONVERT DIGIT TO SIXBIT
LSH T1,^D12 ;POSITION DIGIT IN HIGH ORDER POSITION
IOR T4,T1 ;ADD HIGH ORDER DIGIT TO DEVICE NAME
MOVE T1,T2 ;GET REMAINDER (SECOND, THIRD DIGITS)
IDIVI T1,10 ;ISOLATE SECOND AND THIRD DIGITS
ADDI T1,'0' ;CONVERT SECOND DIGIT TO SIXBIT
LSH T1,6 ;MOVE DIGIT TO MIDDLE POSITION
IOR T4,T1 ;ADD SECOND DIGIT TO NAME
ADDI T2,'0' ;CONVERT LOW ORDER DIGIT TO SIXBIT
IOR T4,T2 ;ADD THIRD DIGIT TO NAME
MOVE T1,DVSSTR ;GET STRUCTURE NUMBER AGAIN
MOVEM T4,DEVNAM+DVXST0(T1) ;SAVE INITIAL STRUCTURE NAME
MOVX T2,D1%NIU ;GET "STRUCTURE NOT IN USE" FLAG
IORM T2,DEVCH1+DVXST0(T1) ;MARK THAT STRUCTURE IS NOT IN USE
RET ;RETURN
; .MSRUS/.MSRNU - READ STATUS OF A UNIT
; ARGUMENT BLOCK DEFINITIONS
MSKSTR (MSTYP,.MSRST,MS%TYP) ;UNIT TYPE IN STATUS WORD
MSTRUS: STKVAR <MSTRSA,MSTRSP,MSTRSS,<MSTRSB,.MSRLN>,<MSTRSN,2>,MSTUDB>
; LOCAL VARIABLES --
;
; MSTRSA - VIRTUAL ADDRESS OF PAGE USED FOR READING HOME BLOCKS
; MSTRSP - PHYSICAL PAGE NUMBER OF PAGE USED FOR READING HOME BLOCKS
; MSTRSS - STRUCTURE NUMBER
; MSTRSB - ARGUMENT BLOCK TO BE RETURNED TO THE USER
; MSTRSN - ASCIZ STRUCTURE NAME
; MSTUDB - Address of UDB
; ACCUMULATOR USAGE --
;
; P1/ ADDRESS OF ARGUMENT BLOCK IN USER SPACE
; P2/ ADDRESS OF ARGUMENT BLOCK IN MONITOR SPACE
; P3/ STATUS TO BE RETURNED
; VERIFY THAT THE USER HAS THE REQUIRED CAPABILITIES ENABLED
MOVE T1,CAPENB ;GET ENABLED CAPABILITIES
TXNN T1,SC%WHL!SC%OPR!SC%MNT ;IS USER CURRENTLY A WHEEL, OR OPERATOR OR MAINT?
RETBAD (CAPX2) ;NO, RETURN ERROR CODE
; CHECK SIZE OF ARGUMENT BLOCK
XCTU [ HLRZ T1,1 ] ;GET SIZE OF BLOCK FROM USER
SKIPG T1 ;AT LEAST ONE ITEM REQUESTED ?
RETBAD (MSTRX3) ;NO, RETURN "ARG BLOCK TOO SMALL" ERROR
; INITIALIZE THE ARGUMENT BLOCK TO BE RETURNED
MOVEI T2,MSTRSB ;GET ADDRESS OF ARGUMENT BLOCK
MOVEI T1,1(T2) ;GET DESTINATION ADDRESS
HRLI T1,(T2) ;GET SOURCE ADDRESS
SETZM MSTRSB ;CLEAR FIRST WORD OF BLOCK
BLT T1,.MSRLN-1(T2) ;INITIALIZE ARGUMENT BLOCK
; SET UP CHANNEL, CONTROLLER, AND UNIT NUMBERS IN ARG BLOCK TO BE RETURNED
UMOVE P1,2 ;GET ADDRESS OF ARGUMENT BLOCK IN USER SPACE
MOVEI P2,MSTRSB ;GET ADDRESS OF ARGUMENT BLOCK IN MONITOR SPACE
UMOVE T1,.MSRCH(P1) ;GET CHANNEL NUMBER FROM USER
UMOVE T2,.MSRCT(P1) ;GET CONTROLLER NUMBER FROM USER
UMOVE T3,.MSRUN(P1) ;GET UNIT NUMBER FROM USER
DMOVEM T1,.MSRCH(P2) ;STORE INITIAL CHANNEL AND CONTROLLER NUMBERS
MOVEM T3,.MSRUN(P2) ;STORE INITIAL UNIT NUMBER
;..
;..
; DETERMINE IF IT IS NECESSARY TO STEP TO THE NEXT UNIT
XCTU [HRRZ T4,1] ;GET FUNCTION CODE FROM USER
CAIN T4,.MSRNU ;IS FUNCTION READ STATUS OF NEXT UNIT ?
JRST MSTSTP ;YES, GO STEP TO NEXT ONE
CALL CHKCKU ;SEE IF SPECIFIED UNIT EXISTS
RETBAD () ;NOPE, ERROR
JRST MSTRS2 ;IT'S OK, PROCEED
MSTSTP: SETCM T4,T1 ;GET COMPLEMENT OF T1
ORCM T4,T2 ;THEN OR WITH COMPLEMENT OF T2
ORCM T4,T3 ;ALSO OR WITH COMPLEMENT OF T3
JUMPE T4,MSTSTY ;IF ALL ARGS WERE -1, THEN SKIP VALIDITY CHECK
CALL CHKCKU ;MAKE SURE STEPPING FROM A VALID UNIT
RETBAD () ;NOPE, ERROR
DMOVE T1,.MSRCH(P2) ;YES, RESTORE CHANNEL AND CONTROLLER NUMBERS
MOVE T3,.MSRUN(P2) ;AND UNIT NUMBER
MSTSTY: CALL ADVCKU ;ADVANCE TO NEXT DISK UNIT IN SYSTEM
RETBAD (MSTX18) ;NO MORE UNITS
DMOVEM T1,.MSRCH(P2) ;REMEMBER NEW CHANNEL AND CONTROLLER NUMBERS
MOVEM T3,.MSRUN(P2) ;AND REMEMBER NEW UNIT NUMBER
MOVE T1,T4 ;PUT UDB POINTER IN RIGHT AC
MOVEM T1,MSTUDB ;Save UDB address
; CHECK TO SEE IF UNIT IS OFF-LINE OR IN MAINTENANCE MODE
MSTRS2: MOVE T2,UDBDSH(T1) ;GET HIGH ORDER SERIAL #
MOVEM T2,.MSDSH(P2) ;SAVE IT
MOVE T2,UDBDSN(T1) ;GET LOW ORDER SERIAL #
MOVEM T2,.MSDSN(P2) ;SAVE IT
MOVE T2,UDBMID(T1) ;GET MAINTANCE ID
MOVEM T2,.MSMID(P2) ;SAVE IT
SETZM P3 ;INITIALIZE STATUS TO BE RETURNED
CALL GETSTR ;GET THE STRUCTURE NUMBER FOR THIS UNIT
JRST [ IOR P3,T1 ;FAILED, UNIT OFFLINE OR USED FOR MAINTENANCE
JRST MSTRS3] ;GO COPY DISK TYPE INFO
MOVEM T1,MSTRSS ;SAVE UNIT IN STRUCTURE,,STRUCTURE NUMBER
CAME T1,[-1] ;IS THIS UNIT IN A STRUCTURE ?
TXO P3,MS%MNT ;YES, MARK THAT THIS UNIT IS PART OF A STRUCTURE
TXNE T3,MS%2PT ;DUAL-PORTED BETWEEN 2 KLS?
TXO P3,MS%2PT ;YES. MARK STATUS
IFN DEBUG,<
TXNE T3,MS%SVD ;SERVED?
TXO P3,MS%SVD ;YES, MARK IT
>
TXNE T3,MS%IAC ;Is the unit in special homeblock check?
TXO P3,MS%IAC ;Yes, mark it as inaccessible then
;..
;..
; HERE TO COPY THE DISK SIZE TABLE FOR THIS DISK TYPE
MSTRS3: STOR T2,MSTYP,(P2) ;SAVE UNIT TYPE FOR USER
MOVSI T1,-NDSKUT ;PREPARE TO FIND TYPE IN DSKUTP
MSTRS4: CAME T2,DSKUTP(T1) ;FOUND IT?
AOBJN T1,MSTRS4 ;NO, KEEP LOOKING (SURE TO FIND IT)
MOVE T1,DSKSIZ(T1) ;GET ADDRESS OF DISK SIZE TABLE
MOVE T2,LPPCYL(T1) ;GET LOST SECTORS/CYL
MOVEM T2,.MSRLS(P2) ;COPY FOR USER
MOVE T2,SECSRF(T1) ;GET SECTORS/SURFACE
MOVEM T2,.MSRSS(P2) ;COPY FOR USER
MOVE T2,TRECPP(T1) ;GET TRUE SECTORS/PAGE
MOVEM T2,.MSTSP(P2) ;COPY FOR USER
HRLI T1,SECPAG(T1) ;GET SOURCE ADDRESS FOR COPY
HRRI T1,.MSRSP(P2) ;GET DESTINATION (ARG BLOCK)
BLT T1,.MSRBT(P2) ;COPY SIZE DATA FOR USER
TXNE P3,MS%OFL!MS%DIA!MS%IAC ;Is unit unavailable or inaccessible?
JRST MSTRS6 ;YES, JUST GO STORE WHAT WE HAVE
; HERE TO READ THE HOME BLOCKS FOR THE SPECIFIED UNIT
DMOVE T1,.MSRCH(P2) ;GET CHANNEL AND CONTROLLER NUMBERS
MOVE T3,.MSRUN(P2) ;GET UNIT NUMBER
CALL MSTRHB ;GO READ THE HOME BLOCKS
JRST [ CAIN T1,MSTRX5 ;UNIT OFF-LINE ?
TXO P3,MS%OFL ;YES, MARK STATUS
MOVE T2,MSTUDB ;Get back address of UDB
MOVE T2,UDBST1(T2) ;Get secondary status word
TXNE T2,U1.OFS ;Did TOPS-20 force the disk offline?
TXO P3,MS%IAC ;Yes, mark it inaccessible
CAIN T1,MSTX20 ;DATA ERROR READING HOME BLOCKS ?
TXO P3,MS%ERR ;YES, MARK STATUS
CAIN T1,MSTRX4 ;IS THIS NO FREE SPACE?
RETBAD () ;YES QUIT AND GIVE THIS ERROR CODE
JRST MSTRS6 ] ;GO RETURN VALUES TO USER
MOVEM T1,MSTRSA ;SAVE VIRTUAL ADDRESS OF HOME BLOCK PAGE
MOVEM T2,MSTRSP ;SAVE PHYSICAL PAGE NUMBER
; CHECK THE HOME BLOCKS FOR THIS UNIT
CALL MSTHBC ;GO CHECK THE HOME BLOCKS
;**;[7216] Change 2 lines at MSTRS4+37 CEG 23-Dec-85
SKIPN T1 ;[7216] EVERYTHING OK?
TXO P3,MS%HBB ;[7216] NO, BAD HOME BLOCKS
;..
;..
; GET THE STRUCTURE NAME AND UNIT INFO FROM THE HOME BLOCK
MOVE T2,MSTRSA ;GET VIRTUAL ADDRESS OF FIRST HOME BLOCK
TXNN T1,HB%1OK ;IS THE FIRST HOME BLOCK OK ?
ADDI T2,HBLEN ;NO, USE THE SECOND HOME BLOCK
MOVS T3,HOMLUN(T2) ;GET UNIT INFO FROM HOME BLOCK
MOVEM T3,.MSRNS(P2) ;SAVE UNIT INFO IN ARG BLOCK TO BE RETURNED
XCTU [HLRZ T1,1] ; GET ARG BLK LENGTH
CAIGE T1,.MSRSN+1 ; DOES ARG BLK HAVE .MSRSN WORD?
JRST MSTRS7 ; NO! SKIP STR NAME STRING XFER
MOVE T1,HOMSNM(T2) ;GET STRUCTURE NAME FROM HOME BLOCK
MOVEI T2,MSTRSN ;GET ADDRESS DESTINATION FOR STRING
CALL SIXASC ;CONVERT STRING TO SIXBIT
MOVEI T1,.MSRSN(P1) ;GET ADDRESS IN USER SPACE OF PTR TO DESTINATION
MOVEI T2,MSTRSN ;GET ADDRESS OF STRUCTURE NAME STRING
CALL STOSTR ;STORE NAME STRING IN USER SPACE
MOVEM T1,.MSRSN(P2) ;SAVE UPDATED POINTER IN ARGUMENT BLOCK
; COPY THE UNIT-, OWNER-, AND FILE-SYSTEM-ID FIELDS FROM THE HOME BLOCK
; AND THE SERIAL NUMBER, ALSO
MSTRS7: MOVE T2,MSTRSA ;GET START ADR OF HOME BLOCK PAGE
HRLI T1,HOMUID(T2) ;GET SOURCE ADDRESS
HRRI T1,.MSRUI(P2) ;GET DESTINATION ADDRESS
BLT T1,.MSRFI+2(P2) ;COPY ID DATA FROM HOME BLOCK
MOVE T1,HOMSER(T2) ;GET CPU SERIAL NUMBER
MOVEM T1,.MSRSE(P2) ; AND COPY IT
; CHECK THE BAT BLOCKS ON THIS UNIT
MSTRS5: DMOVE T1,.MSRCH(P2) ;GET CHANNEL AND CONTROLLER NUMBERS
MOVE T3,.MSRUN(P2) ;GET UNIT NUMBER
HRL T4,MSTRSA ;GET VIRTUAL ADDRESS OF HOME BLOCK PAGE
HRR T4,MSTRSP ;GET PHYSICAL PAGE NUMBER OF BAT BLOCK PAGE
CALL UNIBAT ;CHECK THE BAT BLOCKS FOR THIS UNIT
TXO P3,MS%BBB ;BAT BLOCKS BAD, MARK STATUS
; UNLOCK THE HOME BLOCK PAGE AND RELEASE THE PAGE
MOVE T1,MSTRSP ;GET PHYSICAL CORE PAGE NUMBER
CALL MULKCR ;UNLOCK THE HOME BLOCK PAGE
MOVE T1,MSTRSA ;GET VIRTUAL ADDRESS OF HOME BLOCK PAGE
CALL RELPAG ;RELEASE THE PAGE
OKINT ;PERMIT INTERRUPT AGAIN
;..
;..
; COPY STRUCTURE INFORMATION FROM THE SDB
HRRZ T1,MSTRSS ;GET STRUCTURE NUMBER
CAIN T1,-1 ;IS UNIT PART OF A STRUCTURE ?
JRST MSTRS6 ;NO, IGNORE STRUCTURE INFORMATION
MOVE T2,STRTAB(T1) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
LOAD T1,STRNSS,(T2) ;GET NUMBER OF SECTORS FOR SWAPPING
LSH T1,-2 ;CONVERT TO PAGES
LOAD T3,STRNUM,(T2) ;GET NUMBER OF UNITS IN STRUCTURE
IMUL T1,T3 ;NUMBER OF SWAPPING PAGES ON STRUCTURE
MOVEM T1,.MSRSW(P2) ;SAVE NUMBER OF SWAPPING SECTORS
XCTU [HLRZ T1,1] ; GET ARG BLK SIZE
CAIGE T1,.MSRSA+1 ; DOES IT HAVE .MSRSA WORD
JRST MSTRS6 ; NO- SKIP ALIAS STRING XFER
HRRZ T1,MSTRSS ;GET STRUCTURE NUMBER
MOVE T1,DEVNAM+DVXST0(T1) ;GET ALIAS OF THIS STRUCTURE
MOVEI T2,MSTRSN ;GET ADDRESS OF DESTINATION OF ASCIZ STRING
CALL SIXASC ;CONVERT SIXBIT TO ASCIZ
MOVEI T1,.MSRSA(P1) ;GET ADR IN USER SPACE OF POINTER TO DESTINATION
MOVEI T2,MSTRSN ;GET ADDRESS OF ASCIZ STRUCTURE NAME
CALL STOSTR ;GO STORE THE STRUCTURE NAME
MOVEM T1,.MSRSA(P2) ;STORE UPDATED POINTER IN ARGUMENT BLOCK
; RETURN ARGUMENTS TO THE USER ARGUMENT BLOCK
MSTRS6: IORM P3,.MSRST(P2) ;STORE STATUS IN ARGUMENT BLOCK
MOVE T3,P1 ;COPY ADDRESS OF USER ARGUMENT BLOCK
MOVE T2,P2 ;GET SOURCE
XCTU [ HLRZ T1,1 ] ;GET SIZE OF USER ARGUMENT BLOCK
CAILE T1,.MSRLN ;BIGGER THAN MAX ALLOWED ?
MOVEI T1,.MSRLN ;YES, RETURN ONLY MAX # OF WORDS
CALL BLTMU1 ;COPY RESULTS TO USER SPACE
RETSKP ;RETURN TO USER
; .MSSSS - SET STRUCTURE STATUS
; MASK OF BITS WHICH USER IS PERMITTED TO CHANGE --
MSTMSK== MS%DIS!MS%DOM!MS%NRS!MS%RWD!MS%RWS
MSTSSS: MOVE T1,CAPENB ;GET ENABLED CAPABILITIES
TXNN T1,SC%WHL!SC%OPR ;REQUIRED PRIVILEGES ENABLED ?
RETBAD (MSTRX2) ;NO, RETURN "INSUFFICIENT CAPABILITIES" ERROR
; CHECK SIZE OF ARGUMENT BLOCK
XCTU [ HLRZ T1,1 ] ;GET SIZE OF USER'S ARGUMENT BLOCK
CAIGE T1,.MSSLN ;BLOCK BIG ENOUGH ?
RETBAD (MSTRX3) ;NO, RETURN "ARG BLOCK TOO SMALL" ERROR
; GET STRUCTURE NUMBER AND SDB ADDRESS
UMOVE P1,2 ;GET ADDRESS OF USER'S ARGUMENT BLOCK
UMOVE T1,.MSSSN(P1) ;GET STRUCTURE NAME FROM ARGUMENT BLOCK
CALL FNDSTR ;GET THE STRUCTURE NUMBER
RETBAD (MSTX21) ;STRUCTURE NOT MOUNTED WITH THAT NAME
MOVE P2,STRTAB(T1) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
; SET REQUESTED STATUS BITS
UMOVE T3,.MSSST(P1) ;GET NEW STATUS BITS
UMOVE T4,.MSSMW(P1) ;GET MASK WORD FROM ARGUMENT BLOCK
CAIN T1,PSNUM ;CHANGING STATUS OF PUBLIC STRUCTURE ?
TXZA T4,MSTMSK&<^-<MS%DOM!MS%DIS!MS%NRS>> ;YES, DO NOT ALLOW SYSTEM STR TO BE DISMOUNTED
TXZ T4,MSTMSK ;CLEAR BITS WHICH USER IS ALLOWED TO CHANGE
JUMPN T4,[CALL ULKSTR ;IF CHANGING ILLEGAL BITS, UNLOCK THE STRUCTURE
RETBAD (MSTX22)] ;RETURN "ILLEGAL TO CHANGE SPECIFIED BITS"
UMOVE T4,.MSSMW(P1) ;GET MASK WORD AGAIN
AND T3,T4 ;GET JUST THE BITS TO BE SET
IORM T3,SDBSTS(P2) ;SET THE BITS
UMOVE T3,.MSSST(P1) ;GET THE STATUS AGAIN
ANDCA T3,T4 ;GET JUST THE BITS TO BE CLEARED
ANDCAM T3,SDBSTS(P2) ;CLEAR THE BITS
CALL ULKSTR ;UNLOCK THE STRUCTURE
RETSKP ;RETURN TO USER
; .MSHOM - MODIFY HOME BLOCK
MSTHOM: STKVAR <HSTRNM,MSHERR>
MOVE A,CAPENB ;MAKE SURE USER PRIVILEGED
TXNN A,SC%WHL!SC%OPR
RETBAD (MSTRX2) ;"INSUFFICIENT PRIVS"
XCTU [HLRZ A,1] ;GET USER'S ARG BLOCK LENGTH
CAIGE A,4 ;ENOUGH INFO SUPPLIED?
RETBAD (MSTRX3) ;NO, "ARG BLOCK TOO SMALL"
UMOVE P1,2 ;GET ADDRESS OF ARGUMENT BLOCK
UMOVE A,.MSHNM(P1) ;GET DESIGNATOR FOR STRUCTURE
CALL FNDSTR ;LOCATE THE STRUCTURE
RETBAD (MSTX21) ;"STRUCTURE NOT MOUNTED"
MOVEM A,HSTRNM ;REMEMBER STRUCTURE NUMBER
UMOVE B,.MSHOF(P1) ;GET OFFSET INTO HOMEBLOCK
UMOVE C,.MSHVL(P1) ;GET NEW DATA
UMOVE D,.MSHMK(P1) ;GET MASK SHOWING WHICH PARTS OF WORD ARE TO CHANGE
CALL MODHOM ;MODIFY HOME BLOCKS
JRST MSH1 ;FAILED
MOVE A,HSTRNM ;SUCCEEDED, GET STR NUMBER AGAIN
CALL ULKSTR ;RELEASE THE STRUCTURE
RETSKP ;GIVE GOOD RETURN
MSH1: MOVEM A,MSHERR ;REMEMBER ERROR CODE
MOVE A,HSTRNM ;GET STRUCTURE NUMBER
CALL ULKSTR ;RELEASE STRUCTURE
MOVE A,MSHERR ;GET REASON FOR FAILURE
RETBAD ;ANNOUNCE FAILURE
; .MSSGS - GET STRUCTURE STATUS
; BITS WHICH CAN BE OBTAINED BY THE USER --
MSGMSK==MS%EXC!MS%INI!MS%PPS!MS%PS!MS%DIS!MS%DOM!MS%NRS!MS%LIM!MS%RWD!MS%RWS
MSTGSS: STKVAR <MSGSTR,<MSTGSB,.MSGLN>,<MSTGSI,2>>
; CHECK SIZE OF ARGUMENT BLOCK
XCTU [HLRZ P4,1] ;GET SIZE OF USER'S ARGUMENT BLOCK
CAIGE T1,1 ;AT LEAST THE STRUCTURE NAME GIVEN ?
RETBAD (MSTRX3) ;NO, RETURN "ARG BLOCK TOO SMALL" ERROR
; SEE IF DESIRED STRUCTURE IS MOUNTED
UMOVE P1,2 ;GET ADDRESS OF USER'S ARGUMENT BLOCK
MOVEI P2,MSTGSB ;GET ADDRESS OF ARGUMENT BLOCK IN MONITOR SPACE
SETZM P2,.MSGSI(P2) ;INITIALIZE POINTER TO STR NAME STRING
UMOVE T1,.MSGSN(P1) ;GET STRUCTURE NAME FROM USER
MOVEM T1,.MSGSN(P2) ;SAVE STRUCTURE NAME IN BLOCK TO BE RETURNED
CALL FNDSTR ;SEE IF STRUCTURE IS MOUNTED
RETBAD (MSTX21) ;NO STRUCTURE WITH THAT NAME IS MOUNTED
MOVEM T1,MSGSTR ;SAVE STRUCTURE NUMBER
; GET THE STATUS BITS FOR THE STRUCTURE
MOVE T2,STRTAB(T1) ;GET ADDRESS OF SDB FOR THIS STRUCTURE
MOVX P3,MSGMSK ;GET MASK OF BITS THAT CAN BE RETURNED
AND P3,SDBSTS(T2) ;GET STRUCTURE STATUS TO RETURN
SKIPN T1 ;IS IT CURRENTLY THE PRIMARY PUBLIC STRUCTURE ?
TXO P3,MS%PPS!MS%PS!MS%NRS ;YES, MARK THAT THIS IS PRIMARY PUBLIC STRUCTURE
MOVEM P3,.MSGST(P2) ;SAVE STATUS IN ARGUMENT BLOCK
; GET STRUCTURE INFORMATION
LOAD T4,STRNUM,(T2) ;GET NUMBER OF UNITS IN STRUCTURE
MOVEM T4,.MSGNU(P2) ;SAVE NUMBER OF UNITS IN ARG BLOCK TO RETURN
LOAD T4,STRMC,(T2) ;GET MOUNT COUNT FOR THIS STRUCTURE
MOVEM T4,.MSGMC(P2) ;SAVE MOUNT COUNT IN ARGUMENT BLOCK
LOAD T4,STROF,(T2) ;GET OPEN FILE COUNT
MOVEM T4,.MSGFC(P2) ;SAVE OPEN FILE COUNT IN ARGUMENT BLOCK
LOAD T1,STRNAM,(T2) ;GET SIXBIT STRUCTURE NAME
MOVEI T2,MSTGSI ;GET ADDRESS WHERE ASCIZ NAME WILL GO
CALL SIXASC ;CONVERT SIXBIT TO ASCII
MOVEI T1,.MSGSI(P1) ;GET ADDRESS OF USER'S POINTER
MOVEI T2,MSTGSI ;GET ADDRESS OF ASCIZ STR NAME IN MONITOR SPACE
CAILE P4,.MSGSI ;USER PROVIDE ENOUGH SPACE FOR STR NAME PTR ?
CALL STOSTR ;YES, USE POINTER TO STORE STRUCTURE NAME
XCTU [SKIPE .MSGSI(P1)] ;DID USER SUPPLY A POINTER ?
MOVEM T1,.MSGSI(P2) ;YES, SAVE POINTER TO NAME IN ARG BLOCK
; ..
; ..
; RETURN ARGUMENT BLOCK TO THE USER
MOVE T3,P1 ;COPY ADDRESS OF USER ARGUMENT BLOCK
MOVE T2,P2 ;GET SOURCE
CAILE P4,.MSGLN ;BIGGER THAN MAX ALLOWED ?
MOVEI P4,.MSGLN ;YES, RETURN ONLY MAX # OF WORDS
MOVE T1,P4 ;GET LENGTH
CALL BLTMU1 ;COPY RESULTS TO USER SPACE
MOVE T1,MSGSTR ;GET THE STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
RETSKP ;RETURN TO USER
; .MSIMC/.MSDMC - INCREMENT/DECREMENT MOUNT COUNT
;ACCEPTS: SAME AS .MSTR
;RETURNS +1: FAILED, ERROR CODE IN AC1
; +2: SUCCEEDED
;REGISTER USAGE:
; P1/ ADDRESS OF USER'S ARGUMENT BLOCK
; P2/ STRUCTURE NUMBER
; P3/ STRUCTURE UNIQUE CODE
; P4/ JOB NUMBER
; P5/ JSB OFFSET
MSTIMC: TDZA T1,T1 ;MARK THAT COUNT SHOULD BE INCREMENTED
MSTDMC: SETOM T1 ;MARK THAT COUNT SHOULD BE DECREMENTED
ASUBR <MSTMCF>
; CHECK SIZE OF USER ARGUMENT BLOCK
XCTU [HLRZ P4,1] ;GET SIZE OF USER ARGUMENT BLOCK
CAIGE P4,1 ;AT LEAST ONE ITEM SPECIFIED ?
RETBAD (MSTRX3) ;NO, ARGUMENT BLOCK TOO SMALL
; CHECK THAT THE STRUCTURE IS MOUNTED
UMOVE P1,2 ;GET ADDRESS OF USER'S ARGUMENT BLOCK
UMOVE T1,.MSDEV(P1) ;GET DEVICE DESIGNATOR OF STRUCTURE
CALL FNDSTR ;GO SEE IF STRUCTURE IS MOUNTED
RETBAD () ;FAILED, STRUCTURE NOT MOUNTED
MOVEM T1,P2 ;SAVE STRUCTURE NUMBER
CALL STRCNV ;GET STRUCTURE UNIQUE CODE
JRST MCTERR ;FAILED, UNLOCK STRUCTURE AND RETURN
MOVEM T1,P3 ;SAVE UNIQUE CODE
HRLI T1,.DVDES+.DVDSK ;SET DEVICE DESIGNATOR
GTOKM (.GOSMT,<T1>,MCTNOK) ;GETOK FOR MOUNT/DISMOUNT
;CHECK IF USER WANTS TO CHANGE MOUNT COUNT FOR ANOTHER JOB
SETZ P5, ;SET JSB OFFSET TO ZERO
CAILE P4,.MSJOB ;HAS ANOTHER JOB BEEN SPECIFIED
JRST [ CALL MSTJOB ;YES, SEE IF VALID (OFFSET TO JSB IN T1)
JRST MCTERR ;NOT A VALID REQUEST
MOVE P5,T1 ;STORE JSB OFFSET
MOVE P4,T2 ;SAVE JOB INDEX
JRST .+1]
SKIPN P5 ;IF THERE IS NO JSB OFFSET
MOVE P4,JOBNO ; SET JOB INDEX TO BE 'THIS JOB'
; ...
; ...
; INCREMENT OR DECREMENT THE MOUNT COUNT AS APPROPRIATE
LOCK JSSTLK(P5) ;LOCK THE STRUCTURE INFO LOCK IN THE JSB
MOVE T1,P3 ;GET UNIQUE CODE AGAIN
MOVE T2,P5 ;GET OFFSET TO JSB
CALL GTSTOJ ;GET OFFSET FOR THIS STRUCTURE IN JSB
JRST [ UNLOCK JSSTLK(P5) ;UNLOCK THE STRUCTURE INFO LOCK IN JSB
JRST MCTERR] ; UNLOCK STRUCTURE AND RETURN ERROR
MOVE T1,P2 ;GET STRUCTURE NUMBER AGAIN
MOVE T3,P4 ;GET JOB # FOR WHICH THIS IS BEING DONE
MOVE T4,MSTMCF ;GET INCREMENT/DECREMENT FLAG
ADDI T4,1 ;FORM OFFSET TO PROPER CALL INSTRUCTION
XCT [CALL DECMNC ;GO INCREMENT THE MOUNT COUNT
CALL INCMNC](T4) ;GO DECREMENT THE MOUNT COUNT
JRST [ UNLOCK JSSTLK(P5) ;UNLOCK THE JSB STRUCTURE LOCK
JRST MCTERR ] ;GO UNLOCK STRUCTURE AND RETURN ERROR
MOVE T1,P3 ;GET UNIQUE CODE AGAIN
MOVE T2,P5 ;GET JSB OFFSET AGAIN
CALL FRJSSO ;FREE JSB STR STORAGE IF NOW UNUSED
UNLOCK JSSTLK(P5) ;UNLOCK THE STRUCTURE INFO LOCK
MOVE T1,P2 ;GET THE STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
SKIPN P5 ;WAS THIS WORK FOR SOMEONE ELSE
RETSKP ;NO, RETURN
CALL CLRJSB ;UNMAP THE OBJECT JSB
HLRE T1,JOBPT(P4) ;GET TTY OF OBJECT JOB
SKIPGE T1 ;IS IT DETACHED?
RETSKP ;YES, FORGET MESSAGE
;SEND MESSAGE OF STRUCTURE MOUNT TO TTY, IF DONE TO ANOTHER JOB
;**;[7190] Replace 5 lines with 5 at MCTNOK-18 CEG 12-Nov-85
TXO T1,.TTDES ;[7190] MAKE LINE NUMBER INTO DESIGNATOR
HRROI T2,[ASCIZ /
[/] ;[7190]
TTMSG% ;[7190]
ERJMP .+1 ;[7190]
MOVE T2,P2 ;GET STRUCTURE NUMBER
CALL MSTOUT ;OUTPUT STRUCTURE NAME
HRROI T2,[ASCIZ / Mounted]
/]
SKIPE MSTMCF ;IF STRUCTURE IS BEING DISMOUNTED,
HRROI T2,[ASCIZ / Dismounted]
/] ; SAY SO
;**;[7190] Replace 2 lines with 2 at MCTNOK-6 CEG 12-Nov-85
TTMSG% ;[7190]
ERJMP .+1 ;[7190]
RETSKP ;SUCCESSFUL RETURN
; HERE ON AN ERROR
MCTNOK: CALL MCTERR ;HERE ON GETOK FAILURE TO UNLOCK STRUCTURE
ITERR () ;RETURN ACJ ERROR
MCTERR: EXCH P2,T1 ;SAVE ERROR CODE, GET STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
SKIPE P5 ;WAS THIS WORK FOR SOMEONE ELSE?
CALL CLRJSB ;YES, CLEAR MAPPED JSB
MOVE T1,P2 ;RESTORE THE ERROR CODE
RETBAD () ;RETURN ERROR TO USER
;Set structure mount attribute .MSCSM
; Returns
; +1 failed. Code in T1
; +2 OK
;register usage
; P1 Structure number
; P2 requested status
; P3 SDB address
; IFN CFSCOD,< ;If CFS stuff
MSTCSM: TMNN SC%WHL!SC%OPR,CAPMSK ;Is this user privileged?
RETBAD(MSTRX2) ;No. Error!
XCTU [HLRZ T2,T1] ;Get count
CAIG T2,.MSCST ;Need at least two words
RETBAD (MSTRX3) ;Not.
UMOVE T1,2 ;Get address of block
XCTU [DMOVE P1,.MSCDV(T1)] ;Get args
ANDX P2,MS%EXC ;Only this bit, please
MOVE T1,P1
CALL FNDSTR ;Get and lock structure
RETBAD() ;Something amiss here
MOVE P1,T1
MOVE P3,STRTAB(T1) ;Get SDB
MOVE T2,SDBSTS(P3) ;Get the status
ANDX T2,MS%EXC ;Isolate the exclusive bit
CAMN T2,P2 ;Same?
IFSKP. ;If not
LOCK STRLOK ;Single thread this
SKIPN P2 ;Want exclusive or shared?
TDZA T2,T2 ;Shared
MOVEI T2,1 ;Exclusive
CALL CFSSUG ;Do it.
IFNSK. ;if failed
UNLOCK STRLOK
EXCH T1,P1
CALL ULKSTR ;Unlock the structure
MOVE T1,P1 ;Error code
RETBAD()
ENDIF.
SETZRO STEXL,(P3) ;Clear this bit
IORM P2,SDBSTS(P3) ;Set new value
UNLOCK STRLOK
ENDIF.
MOVE T1,P1
CALL ULKSTR ;Free the structure lock
RETSKP ;And success!
; > ;IFN CFSCOD
REPEAT 0,< ;CFSCOD NO LONGER USED
IFE CFSCOD,<
MSTCSM: RETBAD(MSTRX1) ;Illegal in this case
> ;IFE CFSCOD
> ;END REPEAT 0
;MSTJOB - ROUTINE TO SET UP MOUNT COUNT CHANGE FOR ANOTHER JOB
;
;ACCEPTS:
; P1/ ADDRESS OF USER'S ARGUMENT BLOCK
; CALL MSTJOB
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, JSB STRUCTURE FOR OTHER JOB SET UP
; T1/ OFFSET TO JSB OR ZERO FOR THIS JOB
; T2/ Local Job Index
;NOTE:THIS ROUTINE RETURNS THE LOCAL JOB INDEX, NOT THE GLOBAL NUMBER.
MSTJOB: STKVAR<MSTT2>
UMOVE T1,.MSJOB(P1) ;GET JOB # FOR WHICH THIS IS TO BE DONE
CAME T1,[-1] ;DID USER SPECIFY 'THIS JOB'
CAMN T1,GBLJNO ; OR JOB # SAME AS USER'S?
JRST [ MOVE T2,JOBNO ;YES, GET JOB # IN T2
SETZ T1, ; THERE IS NO JSB OFFSET
RETSKP]
MOVE T2,CAPENB ;GET ENABLED CAPABILITIES
TXNN T2,SC%WHL!SC%OPR ;WHEEL OR OPERATOR?
RETBAD (CAPX1) ;NO. REQUIRED FOR THIS FUNCTION
CALL GL2LCL ;CONVERT GLOBAL JOB NUMBER TO A LOCAL
RETBAD(ARGX07) ;NO, ILLEGAL JOB NUMBER
MOVEM T1,MSTT2 ;STORE JOB INDEX
CALL MAPJSB ;MAP JOB'S JSB (OFFSET IN T1)
RETBAD (ARGX08) ;JOB DOESN'T EXIST
MOVE T2,MSTT2
RETSKP ;SUCCESS
;INCMNT - ROUTINE TO INCREMENT THE MOUNT COUNT FOR A STRUCTURE
;
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ OFFSET TO JSB DATA FOR THIS STRUCTURE
; T3/ JOB # FOR WHICH INCREMENT BEING DONE(IF CALLING INCMNC)
; CALL INCMNT/INCMNC
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, COUNT INCREMENTED IF NOT PREVIOUSLY INCREMENTED
; BY THIS JOB.
;
; NOTE: STRUCTURE MUST BE LOCKED DURING THIS ROUTINE
INCMNT::MOVE T3,JOBNO ;INCREMENT FOR THIS JOB
INCMNC: JN JSMCI,(T2),[RETBAD (MSTX31)] ;YES, RETURN IF ALREADY INCREMENTED BY THIS JOB
MOVE T4,STRTAB(T1) ;GET ADDRESS OF STRUCTURE DATA BLOCK TO THIS STR
JE STDIS,(T4),INCMN2 ;IS STRUCTURE BEING DISMOUNTED ?
RETBAD (MSTX33) ;YES, ALLOW NO FURTHER INCREMENTS
INCMN2: ;DON'T PERMIT INTERRUPTS WHEN CHANGING DATA BASE
NOSKED ;MUST CHANGE JSB AND SDB "SIMULTANEOUSLY"
SETONE JSMCI,(T2) ;MARK THAT COUNT HAS BEEN INCREMENTED
JN JSFMT,(T2),INCMN3 ;HAS A FORK ALREADY INCREMENTED COUNT
INCR STRMC,(T4) ;BUMP THE MOUNT COUNT
MOVE T1,T4 ;SET UP SDB FOR CALL TO DISMES
SETZ T4, ;SET FLAG THAT MESSAGE NEEDS TO BE SENT
INCMN3: OKSKED ;BOTH CHANGED, PERMIT SCHEDULING AGAIN
JUMPN T4,RSKP ;DOES A MESSAGE NEED TO BE SENT?
SUBI T2,JSSTRT ;SET UP T2 TO CONTAIN THE JSB OFFSET
TRZ T2,777
CALL SNDUSG ;YES, SEND USAGE INFO TO DEVICE ALLOCATOR
RETSKP ;RETURN SUCCESS
;DECMNC - ROUTINE TO CHECK LEGALITY OF DECREMENTING COUNT
; AND CALL DECMNT, IF LEGAL
;
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ OFFSET TO JSB DATA FOR THIS STRUCTURE
; T3/ JOB # FOR WHICH DECREMENT BEING DONE
; P3/ STRUCTURE UNIQUE CODE
; P5/ OFFSET TO JSB OBTAINED FROM SETJSB
; CALL DECMNC
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, DECREMENT LEGAL AND DONE
;
;NOTE: STRUCTURE MUST BE LOCKED DURING THIS ROUTINE
;A USER IS PROHIBITED FROM DOING THE DECREMENT FUNCTION IF HE IS STILL
;CONNECTED TO THE STRUCTURE, OR IF ANY JFN'S ARE STILL IN USE FOR THAT
;STRUCTURE
DECMNC: JUMPE T1,DECCAL ;FORGET CHECK IF THIS IS PS
MOVE T4,STRTAB(T1) ;IS THIS STRUCTURE PUBLIC?
JN STPS,(T4),DECCAL ;SKIP CHECKING IF STRUCTURE IS PUBLIC
JN STNRS,(T4),DECCAL ; OR IF STRUCTURE IS NOT REGULATED
LOAD T4,JSUC,(P5) ;GET CONNECTED STR UNIQUE CODE
CAMN T4,P3 ;IS STR BEING DECREMENTED SAME?
RETBAD (MSTX37) ;YES, RETURN
LOCK JFNLCK(P5) ;LOCK JFN'S WHILE CHECKING DEVICES
MOVN T4,MAXJFN(P5) ;GET # OF USED JFN'S
JUMPE T4,DECMN2 ;JUMP IF NONE USED
HRLZ T4,T4 ;SET UP INDEX TO JFN'S
HRR T4,P5 ;GET JSB OFFSET
STKVAR <MSTT3>
MOVEM T3,MSTT3 ;SAVE JOB #
DECMN1: HRRZ T3,FILDEV(T4) ;CHECK TO SEE THIS IS A DISK
CAIE T3,DSKDTB ;CHECK FOR DISK DTBICE
JRST DECMN3 ;NOT A DISK PROCEED
LOAD T3,STR,(T4) ;GET JFN'S STRUCTURE CODE
SKIPE FILSTS(T4) ;JFN in use?
CAME T3,T1 ;yes, is it this structure?
SKIPA ;no to either, OK
JRST [ UNLOCK JFNLCK(P5) ;YES, UNLOCK JFN'S
RETBAD (MSTX36)] ; AND RETURN
DECMN3: ADDI T4,MLJFN-1 ;GET NEXT JFN BLOCK
AOBJN T4,DECMN1 ;CHECK NEXT JFN
MOVE T3,MSTT3 ;RESTORE JOB #
DECMN2: CALL DECMNT ;DO ACTUAL DECREMENT
JRST [ UNLOCK JFNLCK(P5)
RETBAD]
UNLOCK JFNLCK(P5) ;PERMIT MODIFICATION OF JFN'S
RETSKP ;SUCCESSFUL RETURN
;CALL DECMNT WITHOUT UNLOCKING JFNLCK AT FINISH
DECCAL: CALL DECMNT ;DO ACTUAL DECREMENT
RETBAD
RETSKP ;SUCCESS
;DECMNT - ROUTINE TO DECREMENT THE MOUNT COUNT FOR A STRUCTURE
;
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ OFFSET TO JSB DATA FOR THIS STRUCTURE
; T3/ JOB # FOR WHICH DECREMENT BEING DONE
; CALL DECMNT
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, MOUNT COUNT DECREMENTED IF PREVIOUSLY INCREMENTED
; BY THIS JOB, AND A MESSAGE SENT TO THE MOUNTABLE
; DEVICE ALLOCATOR.
;
; NOTE: STRUCTURE MUST BE LOCKED DURING THIS ROUTINE
; THIS ROUTINE IS CALLED FROM BOTH THE MSTR AND LGOUT JSYS'ES
DECMNT::JE JSMCI,(T2),[RETBAD (MSTX32)] ;RETURN IF THE COUNT HAS NEVER BEEN INCREMENTED
MOVE T4,STRTAB(T1) ;GET ADDRESS OF STRUCTURE DATA BLOCK
NOINT ;DO NOT PERMIT INTERRUPTS
NOSKED ;JSB AND SDB MUST BE CHANGED "SIMULTANEOUSLY"
SETZRO JSMCI,(T2) ;MARK THAT MOUNT COUNT CAN BE INCREMENTED AGAIN
JN JSFMT,(T2),DECM1 ;DOES A FORK STILL HAVE STR MOUNTED
DECR STRMC,(T4) ;NO, DECREMENT THE MOUNT COUNT
MOVE T1,T4 ;SET UP SDB FOR CALL TO DISMES
SETZ T4, ;SET FLAG SAYING MESSAGE NEEDED
DECM1: OKSKED ;BOTH CHANGED, PERMIT SCHEDULING AGAIN
JUMPN T4,DECM2 ;IS A MESSAGE NEEDED?
MOVE T2,T3 ;GET JOB INDEX IN T2
CALL SNDEND ;TELL DEVICE ALLOCATOR OF DECREMENT
DECM2: OKINT ;PERMIT INTERRUPTS AGAIN
RETSKP ;RETURN SUCCESS
; .MSGSU - GET STRUCTURE USERS
MSTGSU: STKVAR <MSUBLK,MSUSTR>
; CHECK THE SIZE OF THE ARGUMENT BLOCK
XCTU [HLRZ Q1,1] ;GET SIZE OF ARGUMENT BLOCK FROM USER
CAIG Q1,.MSUJ1 ;ROOM FOR AT LEAST ONE JOB NUMBER ?
RETBAD (MSTRX3) ;NO, ARGUMENT BLOCK TOO SMALL
; CHECK FOR A VALID FUNCTION CODE
UMOVE P1,2 ;GET ADDRESS OF USER'S ARGUMENT BLOCK
UMOVE Q2,.MSUFL(P1) ;GET THE FLAGS FROM THE USER
TXNN Q2,MS%GTA!MS%GTC!MS%GTM ;VALID FUNCTION REQUESTED ?
RETBAD (MSTRX1) ;NO, RETURN INVALID FUNCTION
; GO CHECK THE STRUCTURE NAME AND GET THE UNIQUE CODE
UMOVE T1,.MSUAL(P1) ;GET POINTER TO NAME STRING IN USER SPACE
CALL FNDSTR ;GO CHECK THE STRUCTURE NAME
RETBAD () ;FAILED, STRUCTURE NOT MOUNTED
MOVEM T1,Q3 ;SAVE STRUCTURE NUMBER
CALL STRCNV ;GET THE UNIQUE CODE FOR THIS STRUCTURE
JRST [ MOVE T1,Q3 ;GET STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
RETBAD (STRX01)] ;RETURN ERROR TO USER
MOVEM T1,MSUSTR ;SAVE UNIQUE CODE
MOVE T1,Q3 ;RESTORE STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
; SET UP TO CHECK EACH JOB ON THE SYSTEM
ADDI Q1,-1(P1) ;COMPUTE HIGHEST ADR TO STORE INTO IN USER SPACE
MOVEI P4,.MSUJ1(P1) ;GET USER ADDRESS OF NEXT WORD TO STORE INTO
MOVSI P2,-NJOBS ;SET UP AOBJN POINTER TO LOOP OVER ALL JOBS
;..
;..
; TOP OF LOOP OVER ALL JOBS - IF JOB EXISTS, MAP IT'S JSB
MSGU10: HRRZ T1,JOBDIR(P2) ;GET RIGHT HALF OF USER NUMBER
JUMPE T1,MSGU70 ;DO NOT CONSIDER JOBS NOT LOGGED IN
HRRZ T1,P2 ;YES, GET THE JOB NUMBER
CALL MAPJSB ;MAP THE JSB FOR THAT JOB
JRST MSGU70 ;JOB MUST HAVE LOGGED OUT, GO ON
MOVEM T1,P3 ;SAVE OFFSET TO MAPPED JSB
MOVE T2,T1 ;GET OFFSET TO WHERE JSB IS MAPPED
HRRZ T1,MSUSTR ;GET UNIQUE CODE FOR THIS STRUCTURE
CALL FNDSTM ;FIND THE OFFSET IN JSB FOR THIS STRUCTURE
TDZA T1,T1 ;STRUCTURE NOT IN USE BY THIS JOB
SETO T1, ;MARK THAT STR IS IN USE
MOVE T3,GBLJNO(P3) ;CHEAT - GET GLOBAL JOB NUMBER FROM OTHER JSB
JUMPE T1,MSGU40 ;IF STR NOT IN USE, ONLY LOOK AT CONNECTION
JE MS%GTM,Q2,MSGU20 ;USER ASKING FOR LIST OF JOBS THAT MOUNTED STR ?
JE JSMCI,(T2),MSGU20 ;YES. DID THIS JOB MOUNT THE STRUCTURE ?
TXO T3,MS%GTM ;YES, SET THIS BIT FOR USER
MSGU20: JE MS%GTA,Q2,MSGU40 ;USER WANT LIST OF JOBS THAT ACCESSED STR ?
JE JSADN,(T2),MSGU40 ;YES. DID THIS JOB ACCESS THE STRUCTURE ?
TXO T3,MS%GTA ;YES, GIVE BIT TO USER
MSGU40: JE MS%GTC,Q2,MSGU50 ;NO. USER WANT LIST OF JOBS CONNECTED TO STR ?
LOAD T4,JSUC,(P3) ;GET CONNECTED STRUCTURE UNIQUE CODE
CAMN T4,MSUSTR ;SAME AS REQUESTED STRUCTURE ?
TXO T3,MS%GTC ;YES, GIVE BIT TO USER
MSGU50: TLNN T3,-1 ;ANY BITS ON?
JRST MSGU60 ;NO, DONT GIVE THIS TO USER
CAMLE P4,Q1 ;ENOUGH ROOM TO STORE ANOTHER JOB # ?
JRST [ CALL CLRJSB ;NO- UNMAP THE JSB NOW MAPPED
JRST MSGU80] ;GO RETURN # OF JOB NUMBERS STORED
UMOVEM T3,0(P4) ;STORE THIS JOB NUMBER AND FLAGS
ADDI P4,1 ;POINT TO NEXT ENTRY IN USER ARG BLOCK
MSGU60: CALL CLRJSB ;UNMAP THE CURRENTLY MAPPED JSB
MSGU70: AOBJN P2,MSGU10 ;GO CHECK NEXT JOB
; DONE STORING INDIVIDUAL JOB NUMBERS - RETURN # OF ITEMS STORED
MSGU80: SUBI P4,.MSUJ1(P1) ;COMPUTE # OF ITEMS STORED
XCTU [HRRM P4,.MSUFL(P1)] ;STORE # OF ITEMS RETURNED
RETSKP ;RETURN TO USER
; .MSICF/.MSDCF - INCREMENT/DECREMENT MOUNT COUNT FOR FORK
;ACCEPTS: SAME AS .MSTR
;RETURNS +1: FAILED, ERROR CODE IN AC1
; +2: SUCCEEDED
;REGISTER USAGE:
; P1/ STRUCTURE UNIQUE CODE
; P2/ STRUCTURE NUMBER
MSTICF: TDZA T1,T1 ;MARK THAT COUNT SHOULD BE INCREMENTED
MSTDCF: SETOM T1 ;MARK THAT COUNT SHOULD BE DECREMENTED
ASUBR<MSTCF>
;CHECK SIZE OF USER ARGUMENT BLOCK
XCTU [HLRZ T1,1] ;GET SIZE OF USER ARGUMENT BLOCK
CAIGE T1,1 ;AT LEAST ONE ITEM SPECIFIED?
RETBAD (MSTRX3) ;NO, ARGUMENT BLOCK TOO SMALL
;CHECK THAT THE STURCTURE IS MOUNTED
UMOVE T1,2 ;GET ADDRESS OF USER'S ARGUMENT BLOCK
UMOVE T1,.MSDEV(T1) ;GET DEVICE DESIGNATOR OF STRUCTURE
CALL FNDSTR ;GO SEE IF STRUCTURE IS MOUNTED
RETBAD ;FAILED, STURCTURE NOT MOUNTED
MOVEM T1,P2 ;SAVE STRUCTURE NUMBER
CALL STRCNV ;GET STRUCTURE UNIQUE CODE
JRST MCTERR ;FAILED, UNLOCK STRUCTURE AND RETURN
MOVEM T1,P1 ;SAVE UNIQUE CODE
;INCREMENT OR DECREMENT THE MOUNT COUNT AS APPROPRIATE
LOCK JSSTLK ;LOCK THE STRUCTURE INFOR LOCK IN JSB
CALL GTSTOF ;GET OFFSET FOR THIS STRUCTURE IN JSB
JRST [ UNLOCK JSSTLK ;FAILED, UNLOCK THE STRUCTURE INFO LOCK
JRST MCTERR] ;AND UNLOCK STRUCTURE AND RETURN ERROR
MOVE T1,P2 ;GET STRUCTURE NUMBER AGAIN
MOVE T4,MSTCF ;GET INCREMENT/DECREMENT FLAG
ADDI T4,1 ;FORM OFFSET TO PROPER CALL INSTRUCTION
XCT [ CALL DECFC ;GO DECREMENT FORK MOUNT COUNT
CALL INCFC](T4) ;GO INCREMENT FORK MOUNT COUNT
JRST [ UNLOCK JSSTLK ;UNLOCK THE JSB STRUCTURE LOCK
JRST MCTERR] ;GO UNLOCK STRUCTURE AND RETURN ERROR
MOVE T1,P1 ;GET UNIQUE CODE AGAIN
CALL FRJSST ;FREE JSB STR STORAGE IF NOW UNUSED
UNLOCK JSSTLK ;UNLOCK THE STRUCTURE INFO LOCK
MOVE T1,P2 ;GET THE STRUCTURE NUMBER
CALL ULKSTR ;UNLOCK THE STRUCTURE
RETSKP
;INCFC - ROUTINE TO INCREMENT STRUCTURE MOUNT COUNT FOR A FORK
;
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ OFFSET TO JSB DATA FOR THIS STRUCTURE
; CALL INCFC
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, COUNT INCREMENTED IF NOT PREVIOUSLY INCREMENTED
; BY THIS FORK.
;
;NOTE: STRUCTURE MUST BE LOCKED DURING THIS ROUTINE
INCFC: STKVAR<INCF1,INCF2>
MOVE T4,STRTAB(T1) ;GET ADDRESS OF STRUCTURE DATA BLOCK
; TO THIS STR
JE STDIS,(T4),INCFC2 ;IS STRUCTURE BEING DISMOUNTED?
RETBAD (MSTX33) ;YES, ALLOW NO FURTHER INCREMENTS
INCFC2: MOVEM T2,INCF1 ;SAVE JSB OFFSET
MOVEM T4,INCF2 ;SAVE SDB ADDRESS
CALL FRKSTO ;SEE IF FORK ALREADY MOUNTED STRUCTURE
SKIPA ;NO, CONTINUE
RETBAD (MSTX31) ;FINDING STRUCTURE IS ERROR
MOVE T2,INCF1 ;RESTORE JSB OFFSET
MOVE T4,INCF2 ;RESTORE SDB ADDRESS
;SET MOUNT FOR THIS FORK, AND INCREMENT SYSTEM MOUNT COUNT IF NOT DONE
; BY THIS JOB PREVIOUSLY
;DON'T PERMIT INTERRUPTS WHEN CHANGING
; DATA BASE
NOSKED ;MUST CHANGE SDB,JSB "SIMULTANEOUSLY"
JN JSFMT,(T2),INCF4 ;SKIP SDB INCREMENT IF FORK FLAG ALREADY SET
JN JSMCI,(T2),INCF4 ;SKIP SDB INCREMENT IF JOB FLAG SET
INCR STRMC,(T4) ;BUMP SDB MOUNT COUNT
SETZ T4, ;MARK THAT WE NEED TO SEND MSSG
INCF4: MOVEM T1,INCF1 ;STORE STRUCTURE NUMBER
MOVE T1,FORKN ;GET JOB RELATIVE FORK NUMBER
MOVEI T3,1 ;SET UP MASK FOR SETTING FORK
LSH T3,(T1) ; MOUNT IN STRUCTURE
MOVE T1,JSFKMT(T2) ;GET FORK MOUNT FLAG WORD
TDO T1,T3 ;SET THIS STRUCTURE IN USE
MOVEM T1,JSFKMT(T2) ; AND REPLACE IN JSB
INCR NOSTR ;INCREMENT NUMBER OF STRUCTURES MOUNTED
;IF INCREMENTING SYSTEM MOUNT COUNT WAS DONE, SEND MSSG TO MDA
OKSKED ;PERMIT SCHEDULING AGAIN
JUMPN T4,RSKP ;SKIP SENDING MSSG IF SDB NOT INCREMENTED
MOVE T1,INCF2 ;RESTORE STRUCTURE NUMBER
MOVE T3,JOBNO ;GET OUR JOB NUMBER
SUBI T2,JSSTRT ;SET UP T2 TO CONTAIN THE JSB OFFSET
TRZ T2,777
CALL SNDUSG ;SEND A MESSAGE TO THE DEVICE ALLOCATOR
RETSKP ;RETURN SUCCESS
;DECFC - ROUTINE TO DECREMENT MOUNT COUNT FOR A FORK
;
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ OFFSET TO JSB DATA FOR THIS STRUCTURE
; CALL DECFC
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, DECREMENT DONE
;
; NOTE: STRUCTURE MUST BE LOCK DURING THIS ROUTINE
;A USER IS PROHIBITED FROM DOING THIS FUNCTION IF ANY JFN'S FOR THIS
;FORK ARE FROM THE STRUCTURE
DECFC: STKVAR<DECF1>
JUMPE T1,DECFC3 ;FORGET CHECK IF THIS IS PS
MOVE T4,STRTAB(T1) ;IS THIS STRUCTURE PUBLIC?
JN STPS,(T4),DECFC3 ;SKIP CHECKING IF STRUCTURE IS PUBLIC
LOCK JFNLCK ;LOCK JFN'S WHILE CHECKING DEVICES
MOVN T4,MAXJFN ;GET # OF USED JFN'S
JUMPE T4,DECFC2 ;JUMP IF NONE USED
HRLZ T4,T4 ;SET UP INDEX TO JFN'S
MOVEM T2,DECF1 ;SAVE OFFSET
HRRZ T2,FORKN ;GET THIS FORK NUMBER RELATIVE TO JOB
DECFC1: HRRZ T3,FILDEV(T4) ;CHECK FOR DISK DEVICE
CAIE T3,DSKDTB
JRST DECFC4 ;NO MUST BE OK
LOAD T3,STR,(T4) ;GET JFN'S STRUCTURE CODE
CAMN T3,T1 ;IS IT THIS STRUCTURE?
JRST [ LOAD T3,ORG,(T4)
CAME T3,T2 ;DOES IT BELONG TO THIS FORK
JRST .+1 ;NO, CONTINUE
UNLOCK JFNLCK ;YES, UNLOCK JFN'S
RETBAD (MSTX36)] ; AND RETURN
DECFC4: ADDI T4,MLJFN-1 ;GET NEXT JFN BLOCK
AOBJN T4,DECFC1 ;CHECK NEXT JFN
MOVE T2,DECF1 ;GET OFFSET TO JSB DATA
DECFC2: CALL DECFMC ;DO DECREMENT
JRST [UNLOCK JFNLCK
RETBAD]
UNLOCK JFNLCK ;PERMIT MODIFICATION OF JFN'S
RETSKP ;SUCCESSFUL RETURN
;CALL DECFMC WITHOUT UNLOCKING JFNLCK AT FINISH
DECFC3: CALL DECFMC ;DO DECREMENT
RETBAD
RETSKP ;SUCCESS
;DECFMC - ROUTINE TO DECREMENT STRUCTURE MOUNT COUNT FOR A FORK
;
;ACCEPTS IN T1/ STRUCTURE NUMBER
; T2/ OFFSET TO JSB DATA FOR THIS STRUCTURE
; CALL DECFMC
;RETURNS: +1 FAILED, ERROR CODE IN T1
; +2 SUCCESS, MOUNT COUNT DECREMENT IF PREVIOUSLY INCREMENTED
; T1 AND T2 RETURN UNCHANGED
;
; NOTE: STRUCTURE MUST BE LOCKED DURING THIS ROUTINE
;THIS ROUTINE IS CALLED FROM THE MSTR JSYS AND THE KSELF CODE
DECFMC::ASUBR<DEC1,DEC2>
JE JSFMT,(T2),[RETBAD (MSTX32)] ;RETURN IF NEVER INCREMENTED
CALL FRKSTO ;SEE IF THIS FORK INCREMENTED COUNT
RETBAD (MSTX32) ;NO
MOVE T2,DEC2 ;RESTORE JSB OFFSET
MOVEI T1,1 ;SET UP MASK TO REMOVE STR FROM FORK
MOVE T3,FORKN ;GET RELATIVE JOB FORK NUMBER
LSH T1,(T3)
MOVE T4,DEC1 ;RESTORE STRUCTURE #
MOVE T4,STRTAB(T4) ; IN ORDER TO GET ADDRESS OF SDB
MOVEM T4,DEC1 ;STORE SDB ADDRESS
NOINT ;DO NOT PERMIT INTERRUPTS
NOSKED ;JSB,SDB CHANGED SIMULTANEOUSLY
MOVE T3,JSFKMT(T2) ;GET FORK FLAG WORD
TDZ T3,T1 ;REMOVE FORK
MOVEM T3,JSFKMT(T2) ;PLACE WORD INTO JSB AGAIN
DECR NOSTR ;DECREMENT NUMBER OF STRUCTURES MOUNTED
JUMPN T3,DECFM1 ;DO ANY MORE FORKS HAVE STR MOUNTED
JN JSMCI,(T2),DECFM1 ;NO, IS THERE A JOB-WIDE MOUNT IN EFFECT
DECR STRMC,(T4) ;NO, DECREMENT SDB MOUNT COUNT
SETZ T4, ;INDICATE A MESSAGE IS NEEDED
DECFM1: OKSKED ;ALL CHANGED, PERMIT SCHEDULING AGAIN
JUMPN T4,DECFM2 ;SKIP MESSAGE IF NOT NEEDED
MOVE T1,DEC1 ;RESTORE STRUCTURE NUMBER
MOVE T2,JOBNO ;GET OUR JOB NUMBER
CALL SNDEND ;SEND A MESSAGE TO THE DEVICE ALLOCATOR
DECFM2: DMOVE T1,DEC1
OKINT ;PERMIT INTERRUPTS AGAIN
RETSKP ;RETURN SUCCESS
;MSTOFL - ROUTINE TO ENABLE ONLINE/OFFLINE PSI INTERRUPTS
MSTOFL: MOVX T1,SC%WHL!SC%OPR ;CHECK PRIVS
TDNN T1,CAPENB
RETBAD (CAPX2) ;NOT ENOUGHT CAPABILITIES
XCTU [HLRZ T1,1] ;GET SIZE OF USER ARGUMENT BLOCK
CAIGE T1,1 ;AT LEAST ONE ITEM SPECIFIED?
RETBAD (MSTRX3) ;NO, ARGUMENT BLOCK TOO SMALL
;CHECK THAT THE CHANNEL IS VALID
UMOVE T1,2 ;GET ADDRESS OF USER'S ARGUMENT BLOCK
UMOVE T1,.MSCHN(T1) ;GET CHANNEL NUMBER FOR INTERRUPTS
CAMN T1,[-1] ;CHECK FOR -1 (CLEAR)
JRST [ SETZM DSPSFK ;CLEAR PSI
RETSKP] ;QUIT
CAIL T1,0 ;CHECK THAT GIVEN PSI CHANNEL IS
CAILE T1,5 ; ASSIGNABLE CHANNEL
JRST [ CAIL T1,^D24 ;CONTINUE CHECKING
CAILE T1,^D35
RETBAD (MSTX40) ;BAD PSI CHANNEL NUMBER GIVEN
JRST .+1] ;PSI CHANNEL OK
;SET UP INTERRUPT WORD IN STG
HRRM T1,DSPSFK ;SAVE PSI
MOVE T1,FORKX ;GET FORK NUMBER
HRLM T1,DSPSFK ;SAVE FORK NUMBER
RETSKP ;SUCCESS RETURN
;KSELF CONTAINS CODE TO CLEAR INTERRUPT WORD WHEN FORK DIES
;MSTIIC - ROUTINE TO SET PSB FLAG BIT TO IGNORE MOUNT COUNT CHECK
MSTIIC: MOVX T1,SC%WHL!SC%OPR ;CHECK PRIVS
TDNN T1,CAPENB
RETBAD (CAPX2) ;NOT ENOUGH CAPABILITIES
LOAD T1,STRFLG ;GET STRUCTURE FLAGS
TRO T1,ST%IMC ;SET IGNORE MOUNT COUNT FLAG
STOR T1,STRFLG ;STORE FLAGS
RETSKP
; ROUTINE TO READ THE HOME BLOCKS ON A UNIT AND RETURN THE UNIT TYPE
;
; ACCEPTS: T1/ CHANNEL NUMBER
; T2/ CONTROLLER NUMBER
; T3/ UNIT NUMBER
; CALL MSTRHB
; RETURNS: +1 FAILED, RETURNS OKINT WITH ERROR CODE IN T1
; +2 SUCCESS, RETURNS NOINT WITH:
; T1/ VIRTUAL ADDRESS OF HOME BLOCK PAGE
; T2/ PHYSICAL CORE PAGE NUMBER OF HOME BLOCK PAGE
;
; NOTE: RETURNS NOINT ON SUCCESS, WITH HOME BLOCK PAGE LOCKED
MSTRHB: ASUBR <RHBCHN,RHBCTL,RHBUNI>
STKVAR <RHBADR,RHBPAG,RHBERR>
NOINT ;DO NOT PERMIT INTERRUPTS WITH SPACE ASSIGNED
CALL ASGPAG ;ASSIGN A JSB PAGE FOR READING HOME BLOCKS
RETBAD (MSTRX4,<OKINT>) ;FAILED, RETURN "INSUFFICIENT RESOURCES" ERROR
MOVEM T1,RHBADR ;SAVE VIRTUAL ADDRESS OF HOME BLOCK PAGE
CALL MLKMA ;LOCK DOWN THE PAGE SO THAT I/O CAN BE DONE
MOVEM T1,RHBPAG ;SAVE PHYSICAL PAGE NUMBER OF HOME BLOCK PAGE
DMOVE T1,RHBCHN ;GET CHANNEL AND CONTROLLER NUMBERS
MOVE T3,RHBUNI ;AND UNIT NUMBER
CALL CKUPAK ;PACK THEM INTO ONE WORD
MOVE T2,RHBPAG ;GET PHYSICAL PAGE NUMBER
LSH T2,PGSFT ;COMPUTE PHYSICAL ADDRESS
MOVEI T3,HM1BLK ;GET BLOCK NUMBER OF FIRST HOME BLOCK
MOVE T4,RHBADR ;GET VIRTUAL ADDRESS OF HOME BLOCK PAGE
CALL REDHOM ;READ THE TWO HOME BLOCKS
JRST [ MOVEM T1,RHBERR ;FAILED, SAVE ERROR BITS
MOVE T1,RHBPAG ;GET PHYSICAL PAGE NUMBER BACK
CALL MULKCR ;UNLOCK THE PAGE
MOVE T1,RHBADR ;GET VIRTUAL ADDRESS OF PAGE
CALL RELPAG ;RELEASE THE PAGE
MOVE T1,RHBERR ;GET ERROR CODE BACK
CAME T1,[-1] ;WAS UNIT OFF-LINE ?
RETBAD (MSTX20,<OKINT>) ;NO, RETURN DATA ERROR CODE
RETBAD (MSTRX5,<OKINT>) ] ;YES, RETURN "DRIVE OFF LINE" ERROR
MOVE T1,RHBADR ;SUCCESS, GET VIRTUAL ADDRESS OF HOME BLOCKS
MOVE T2,RHBPAG ;GET PHYSICAL PAGE NUMBER OF HOME BLOCK PAGE
RETSKP ;RETURN (NOINT)
; ROUTINE TO CHECK THE HOME BLOCKS
;
; ACCEPTS IN T1/ VIRTUAL ADDRESS OF HOME BLOCK PAGE
; CALL MSTHBC
; RETURNS: +1 ALWAYS, WITH P3/ FLAGS:
; HB%1OK IF FIRST HOME BLOCK IS OK
; HB%2OK IF SECOND HOME BLOCK IS OK
MSTHBC: SAVEP ;SAVE PRESERVED AC'S
ASUBR <HBCVIR> ;SAVE VIRTUAL ADDRESS OF HOME BLOCK PAGE
SETZM P3 ;INITIALIZE FLAGS FOR THIS UNIT
MOVE T1,HBCVIR ;GET VIRTUAL ADDRESS OF FIRST HOME BLOCK
MOVEI T2,HM1BLK ;GET # OF THIS HOME BLOCK
CALL HBCCHK ;CHECK FIRST HOME BLOCK
TXZA P3,HB%1OK ;FIRST HOME BLOCK IS NO GOOD
TXO P3,HB%1OK ;FIRST HOME BLOCK IS FINE AND DANDY
MOVE T1,HBCVIR ;GET VIRTUAL ADDRESS OF FIRST HOME BLOCK
ADDI T1,HBLEN ;FORM ADDRESS OF SECOND HOME BLOCK
MOVEI T2,HM2BLK ;GET BLOCK ADDRESS OF SECOND HOME BLOCK
CALL HBCCHK ;GO CHECK SECOND HOME BLOCK
TXZA P3,HB%2OK ;MARK THAT SECOND HOME BLOCK IS NO GOOD
TXO P3,HB%2OK ;INDICATE SECOND HOME BLOCK IS FINE
MOVE T1,P3 ;COPY FLAGS TO RETURN
RET ;RETURN
;SIXASC - ROUTINE TO CONVERT SIXBIT TO ASCII
;
;ACCEPTS IN T1/ SIXBIT "NAME"
; T2/ ADDRESS OF DESTINATION FOR ASCIZ STRING
; CALL SIXASC
;RETURNS: +1 ALWAYS
SIXASC::MOVEI T3,-1(T2) ;GET ADDRESS PRECEDING DESTINATION
HRLI T3,(POINT 7,0,35) ;FORM IDPB POINTER TO DESTINATION
MOVE T2,T1 ;COPY SIXBIT NAME
MOVSI T4,-6 ;GET MAX # OF CHARACTERS TO CONVERT
SIXAS1: SETZM T1 ;INITIALIZE WORK AC
LSHC T1,6 ;GET ONE SIXBIT CHARACTER
JUMPE T1,SIXAS2 ;IF END OF NAME GO DEPOSIT A NULL
ADDI T1,"A"-'A' ;CONVERT CHARACTER TO ASCII
IDPB T1,T3 ;STORE CHARACTER IN DESTINATION
AOBJN T4,SIXAS1 ;LOOP OVER ALL CHARACTERS IN NAME
SIXAS2: MOVEI T1,.CHNUL ;GET A NULL
IDPB T1,T3 ;TERMINATE THE ASCIZ STRING
RET ;RETURN
; ROUTINE TO FIND A FILE STRUCTURE IN THE DEVICE TABLES
; ACCEPTS IN T1/ POINTER TO ASCIZ STRUCTURE NAME IN USER SPACE
; CALL FNDSTR
; RETURNS: +1 FAILED, STRUCTURE NOT MOUNTED WITH THAT ALIAS
; +2 SUCCESS, WITH T1/ STRUCTURE NUMBER
; RETURNS NOINT, WITH STRUCTURE LOCKED !
FNDSTR: SAVEP
STKVAR <FSTERR,FSTBLK,FSTSTR>
SETZM FSTERR ;INITIALIZE ERROR FLAG
SETZM FSTBLK ;INITIALIZE ADR OF FREE BLOCK
MOVE T2,T1 ;COPY DEVICE DESIGNATOR
TLC T2,-1 ;SEE IF LH = -1
TLCN T2,-1
HRLI T2,(<POINT 7,0>) ;YES, SET UP BYTE POINTER
HLRZ T3,T2 ;GET LEFT HALF OF DESIGNATOR OR POINTER
CAIL T3,.DVDES ;WAS A DESIGNATOR PROVIDED ?
JRST FNDST1 ;YES, SKIP STDEV, JUST GO CHECK DESIGNATOR
CALL CPYFUS ;COPY STRUCTURE NAME STRING FROM USER SPACE
RETBAD (MONX02) ;FAILED, RETURN "INSUFFICIENT RESOURCES" - JSB FULL
MOVEM T1,FSTBLK ;SAVE ADDRESS OF BLOCK
HRROI T1,1(T1) ;FORM POINTER TO NAME STRING
STDEV ;TRNASLATE STRING TO DEVICE DESIGNATOR
JRST [ MOVEM T2,FSTERR ;FAILED, SAVE ERROR CODE
JRST FNDST2 ] ;GO RELEASE SPACE AND RETURN ERROR
FNDST1: MOVEM T2,FSTSTR ;SAVE DEVICE DESIGNATOR
HRRZ T4,T2 ;GET UNIQUE CODE PART OF DESIGNATOR TO CHECK
CAIN T4,-1 ;IS DESIGNATOR TO BE CHECKED FOR "DSK:" ?
JRST [ CALL GTCSCD ;YES, GET CONNECTED STRUCTURE UNIQUE CODE
HLRM T1,FSTSTR ;SAVE UNIQUE CODE FOR CONNECTED STRUCTURE
JRST .+1] ;CONTINUE
HLRZ T3,FSTSTR ;GET DEVICE-TYPE PORTION OF DESIGNATOR
CAIE T3,.DVDES+.DVDSK ;IS THIS A DISK ?
JRST [ MOVX T1,ARGX18 ;NO, GET ERROR CODE
MOVEM T1,FSTERR ;SAVE ERROR CODE
JRST FNDST2 ] ;GO RELEASE SPACE AND RETURN ERROR CODE
MOVE T1,FSTSTR ;COPY DEVICE DESIGNATOR FOR CHKDEV
CALL CHKDEV ;GO CHECK DEVICE DESIGNATOR
JRST [ MOVX T1,STRX01 ;GET ERROR CODE
MOVEM T1,FSTERR ;SAVE ERROR CODE
JRST FNDST2 ] ;GO RELEASE SPACE AND RETURN ERROR CODE TO USER
HRRZ T1,FSTSTR ;GET UNIQUE CODE FOR THIS STRUCTURE
CALL CNVSTR ;CONVERT UNIQUE CODE TO A STRUCTURE NUMBER
JRST [ MOVEM T1,FSTERR ;SAVE ERROR CODE
JRST FNDST2 ] ;GO RELEASE SPACE AND RETURN ERROR CODE
MOVEM T1,FSTSTR ;SAVE STRUCTURE NUMBER
FNDST2: MOVEI T1,JSBFRE ;GET FREE HEADER
SKIPE T2,FSTBLK ;GET ADDRESS OF BLOCK CONTAINING NAME
JRST [CALL RELFRE ;RELEASE FREE SPACE IF ANY
OKINT ;UNDO INT FROM ASGRES
JRST .+1] ;CONTINUE
MOVE T1,FSTSTR ;GET STRUCTURE NUMBER
SKIPN FSTERR ;ANY ERRORS ?
RETSKP ;NO, RETURN SUCCESS (NOINT)
MOVE T1,FSTERR ;YES, GET ERROR CODE
RETBAD () ;RETURN ERROR CODE
;STOSTR - ROUTINE TO STORE A STRUCTURE NAME STRING INTO USER SPACE
;
;ACCEPTS IN T1/ ADDRESS OF POINTER TO DESTINATION (ADR IN USER SPACE)
; T2/ ADDRESS OF STRUCTURE NAME STRING IN MONITOR SPACE
; CALL STOSTR
;RETURNS: +1 ALWAYS, T1/ UPDATED POINTER INTO USER SPACE
STOSTR: UMOVE T4,(T1) ;GET POINTER TO DESTINATION FROM USER
TLCN T4,-1 ;CHECK FOR -1 LH BYTEPOINTER
JRST R ;THE LH WAS 0, NO REAL BYTE PNTR
TLCN T4,-1 ;CONVERT BACK; WAS IT -1?
HRLI T4,(POINT 7) ;YES, MAKE A PROPER BYTE POINTER
HRLI T2,(POINT 7) ;MAKE T2 PROPER AS WELL
STOST2: ILDB T3,T2 ;GET A CHARACTER FROM THE NAME STRING
MOVEM T4,T1 ;SAVE UPDATED POINTER
XCTBU [IDPB T3,T4] ;STORE CHARACTER IN USER SPACE
JUMPN T3,STOST2 ;IF NOT NULL, GO COPY NEXT CHARACTER
RET ;RETURN
; ROUTINE TO CHECK A CHARACTER OF A STRUCTURE NAME FOR VALIDITY
;
; ACCEPTS IN T1/ ASCII CHARACTER
; CALL CHRCHK
; RETURNS: +1 FAILED, CHARACTER IS ILLEGAL
; +2 SUCCESS, CHARACTER IS LEGAL
; MASK OF VALID CHARACTER CLASSES--
CHDASH==30 ;DASH
CHUCA==24 ;UPPER CASE A
CHUPCH==0 ;UPPER CASE CHARACTERS IN GENERAL
CHUCP==23 ;UPPER CASE P
CHUCT==22 ;UPPER CASE T
CHDIG==21 ;DIGITS
CHRMSK==1B<CHDASH>!1B<CHUCA>!1B<CHUPCH>!1B<CHUCP>!1B<CHUCT>!1B<CHDIG>
CHRCHK: SAVET ;PRESERVE THE TEMPORARY AC'S
MOVE T2,T1 ;GET CHARACTER TO CHECK
CALL GTCODE ;GET THE CHARACTER CLASS CODE
RETBAD () ;FAILED, RETURN ILLEGAL CHARACTER
MOVEI T1,1 ;GET A BIT TO SHIFT INTO POSITION
MOVEI T4,^D35 ;GET NUMBER OF BITS/WORD - 1
SUB T4,T2 ;COMPUTE SHIFT REQUIRED
LSH T1,(T4) ;POSITION BIT FOR THIS CHARACTER CLASS
TXNN T1,CHRMSK ;IS THIS A VALID CHARACTER ?
RETBAD () ;NO, RETURN ILLEGAL CHARACTER
RETSKP ;YES, RETURN SUCCESS
;ROUTINE TO TRANSFER SIXBIT STRUCTURE NAME TO SEVENBIT
;
;ACCEPTS: T1/ BYTE POINTER TO 7-BIT ASCII AREA
; T2/ STRUCTURE NUMBER
; CALL MSTOUT
;RETURNS: +1 ALWAYS, T1 UPDATED
MSTOUT: SAVEQ
MOVE T2,STRTAB(T2) ;GET STRUCTURE BLOCK ADDRESS
MOVEI T2,SDBNAM(T2) ;GET ADDRESS OF STRUCTURE NAME
HRLI T2,440600 ;SET UP 6-BIT POINTER
MOVE T3,[440700,,Q1] ;SET UP BYTE PTR TO Q REGISTERS
MOVEI T4,6 ;THERE IS A MAXIMUM OF 6 BYTES
SETZB Q1,Q2 ;ZERO THE STRING AREA
MSTOU1: ILDB Q3,T2 ;GET 6-BIT CHARACTER
JUMPE Q3,MSTOU2 ;GET OUT OF LOOP IF ZERO BYTE
ADDI Q3,40 ;CONVERT IT TO 7-BIT
IDPB Q3,T3 ;PUT IT IN TEMPORARY LOCATION
SOJG T4,MSTOU1 ;LOOP IF MORE CHARACTERS
MSTOU2: HRROI T2,Q1 ;GET POINTER TO TEMP LOC
;**;[7190] Replace 2 lines with 2 at MSTOU2+1 CEG 12-Nov-85
TTMSG% ;[7190] OUTPUT IT
ERJMP .+1 ;[7190]
RET
;SNDUSG - ROUTINE TO SEND USAGE ACCOUNTING INFORMATION FOR STR MOUNTS
;
;ACCEPTS: T1/ STRUCTURE INDEX
; T2/ JSB OFFSET
; T3/ JOB NUMBER
; CALL SNDUSG
;RETURNS: +1 ALWAYS, MESSAGE SENT TO DEVICE ALLOCATOR
SNDUSG: TRVAR <MSTHDI,<MSTIPC,17>>
MOVEI T4,20 ;ARG BLOCK IS 20 WORDS LONG
HRLI T4,.IPCMS ;SET UP MOUNT CODE
MOVEM T4,MSTHDI
HRLM T3,MSTIPC ;STORE JOB NUMBER
HLR T4,JOBPT(T3)
HRRM T4,MSTIPC ;STORE LINE NUMBER
HRR T4,JOBDIR(T3)
HRLI T4,USRLH ;SET UP USER NUMBER SYMBOL
MOVEM T4,6+MSTIPC ;STORE USER NUMBER
LOAD T3,STRUC,(T1)
HRRM T3,1+MSTIPC ;STORE STR UNIQUE CODE
LDB T3,[POINT STRNS,T3,35] ;GET STRUCTURE INDEX
LOAD T4,STRMC,(T1)
SOS T4
HRLM T4,2+MSTIPC ;STORE PREVIOUS MOUNT COUNT
MOVE T4,SDBSTS(T1) ;GET STATUS
SKIPN T3 ;IS THIS THE PRIMARY STRUCTURE?
TXO T4,MS%PPS!MS%PS!MS%NRS!MS%DOM ;YES, MARK IT SO
HLRM T4,2+MSTIPC ;STORE STR STATUS
MOVE T4,SDBNUM(T1)
HRLM T4,3+MSTIPC ;STORE NUMBER OF UNITS
HRRZ T4,SDBUDB(T1)
LOAD T4,USTYP,(T4)
HRRM T4,3+MSTIPC ;STORE DRIVE TYPE
MOVE T4,SDBNAM(T1)
MOVEM T4,4+MSTIPC ;STORE STR NAME
MOVEI T4,7+MSTIPC
HRLI T4,ACCTSR(T2)
BLT T4,16+MSTIPC ;STORE ACCOUNT STRING
CALL LGTAD
MOVEM T1,5+MSTIPC ;STORE TIME AND DATE
CALL DISMES ;SEND A MESSAGE TO THE DEVICE ALLOCATOR
JFCL ;IGNORE IF MESSAGE FAILED
RET
;SNDEND - ROUTINE TO SEND MESSAGE TO DEVICE ALLOCATOR FOR STR DECREMENT
;
;ACCEPTS: T1/ STRUCTURE INDEX
; T2/ JOB NUMBER
; CALL SNDEND
;RETURNS +1, ALWAYS
SNDEND: TRVAR <MSTHDD,<MSTPC,3>>
MOVEI T3,4 ;LENGTH OF ARG BLOCK
HRLI T3,.IPCDS ;SET UP DISMOUNT CODE
MOVEM T3,MSTHDD
HRLM T2,MSTPC ;STORE JOB NUMBER
LOAD T3,STRMC,(T1)
HRRM T3,MSTPC ;STORE MOUNT COUNT
LOAD T3,STRUC,(T1)
MOVEM T3,1+MSTPC ;STORE STRUCTURE UNIQUE CODE
CALL LGTAD
MOVEM T1,2+MSTPC ;STORE TIME OF DAY
CALL DISMES ;SEND MESSAGE TO DEVICE ALLOCATOR
JFCL ;IGNORE IF MESSAGE FAILED
RET
;STROFL - ROUTINE TO CHECK IF A STRUCTURE IF OFF-LINE
;
;ACCEPTS: T1/ STRUCTURE INDEX
; CALL STROFL
;RETURNS +1, STRUCTURE IS OFF-LINE
; +2, STRUCTURE IS ON-LINE
STROFL::SKIPE T1,STRTAB(T1) ;GET SDB ADDRESS
JRST STROFO ;THERE IS AN SDB POINTER
;THE SDB POINTER IS ZERO
BUG.(CHK,STROFF,MSTR,SOFT,<OFN on mounted structure but STRTAB entry is zero>,,<
Cause: The SPTH table has the N+1 through NOFN number of files on a particular
structure marked as being on a mounted structure, but the STRTAB entry
for this structure is zero.
Action: The table should be corrected in a few seconds. However, there may
be flurry of bugchks, depending upon how many files are open on the
structure. If the bugchks persist, check for improperly dismounted
or spun down drives.
>)
RET ;RETURN AND DDMP WILL NOT UPDATE THIS STRUCTURE
STROFO: HRLI T1,-MXSTRU ;GET NUMBER OF POSSIBLE UNITS
STROF1: MOVE T2,SDBUDB(T1) ;GET UDB ADDRESS
JUMPE T2,RSKP ;FINISHED IF ZERO
MOVE T2,UDBSTS(T2) ;GET UDB STATUS
TXNE T2,US.CHB!US.OIR!US.OMS!US.OFS ;CHECK FOR HOME BLOCK,
; OPERATOR ACTION REQUEST, OFF-LINE
RET ;PROBLEM WITH STRUCTURE
AOBJN T1,STROF1 ;LOOP FOR ALL
RETSKP
TNXEND
END
; *** Edit 7190 to MSTR.MAC by GRANT on 12-Nov-85
; Within MSTR%, use TTMSG% instead of SOUT% to prevent blocking forever