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TITLE	USGSUB - SUBROUTINE PACKAGE TO INTERFACE BACKUP TO THE ACTDAE
SUBTTL	C.D.O'Toole/CDO 22-AUG-85

	SEARCH	UUOSYM,ACTSYM

;COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1980,1981,1984,1986. ALL RIGHTS RESERVED.
;
;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
;ONLY  IN  ACCORDANCE  WITH  THE  TERMS  OF  SUCH LICENSE AND WITH THE
;INCLUSION OF THE ABOVE COPYRIGHT NOTICE.  THIS SOFTWARE OR ANY  OTHER
;COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
;OTHER PERSON.  NO TITLE TO AND OWNERSHIP OF THE  SOFTWARE  IS  HEREBY
;TRANSFERRED.
;
;THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT  NOTICE
;AND  SHOULD  NOT  BE  CONSTRUED  AS A COMMITMENT BY DIGITAL EQUIPMENT
;CORPORATION.
;
;DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY  OF  ITS
;SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.


;THIS PACKAGE HAS ONLY BEEN TESTED WITH BACKUP AND PERFORMS THE FUNCTIONS
;	REQUIRED BY IT TO IMPLEMENT USAGE ACCOUNTING FOR DISK FILES. NO
;	OTHER SUPPORT IS IMPLIED.

;AC DEFINITIONS PARALLEL THOSE FOUND IN BACKUP

T1=1		;TEMP AC
T2==T1+1	;...
T3==T2+1	;...
T4==T3+1	;...

P1==T4+1	;PERMANENT AC
P2==P1+1	;...
P3==P2+1	;...
P4==P3+1	;...

P==17		;A STACK

.BCOPY
COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1980,1986. ALL RIGHTS RESERVED.
\;END COPYRIGHT MACRO
.ECOPY

;LOCAL STORAGE

IPCBLK:	BLOCK	4		;BLOCK FOR IPCF SEND
DCHBLK:	BLOCK	2		;BLOCK FOR DSKCHR
USGTAB:	BLOCK	1		;ADDRESS OF THE ACCOUNT STRING DATA BLOCKS
USGDAT:	BLOCK	UB$ACT		;DATA FOR ACCOUNTING

STRLEN==<UB$END-UB$ACT>		;SIZE OF DATA FOR INDIVIDUAL ACCOUNT STRINGS
CORREQ==<STRLEN*UB$MAC>		;AMOUNT OF CORE REQUIRED FOR ACCOUNT STRINGS

;USGINI	--	INITIALIZE THE PACKAGE. CALLED WHEN BACKUP DISCOVERS IT IS
;		DOING A "SAVE" OPERATION AND "/USAGE" HAS BEEN SPECIFIED.

;RETURNS CPOPJ IF CANNOT GET ENOUGH CORE TO ALLOCATE ACCOUNTING TABLES.

USGINI::MOVEI	T1,CORREQ	;AMOUNT REQUIRED
	ADD	T1,.JBFF##	;COMPUTE NEW FIRST FREE
	CAMG	T1,.JBREL##	;SEE IF IT FITS
	JRST	USGIN1		;IT DOES, GO CLEAN IT UP A LITTLE
	CAIG	T1,377777	;TOO LARGE? (BACKUP RESTRICTION)
	CORE	T1,		;NO, ALLOCATE THE CORE
	  POPJ	P,		;GIVE FAIL RETURN TO CALLER
USGIN1:	MOVE	T1,.JBFF##	;WHERE IT IS
	MOVEM	T1,USGTAB	;SAVE BASE
	MOVEI	T1,CORREQ	;AMOUNT ACQUIRED AGAIN
	ADDM	T1,.JBFF##	;UPDATE FIRST FREE
	AOS	(P)		;GIVE GOOD RETURN
	POPJ	P,		;RETURN

;USGDIP	--	PROTECTION FAILURE ON UFD OR SOME FILE (EITHER USGDIP OR
;USGFIP	--	USGFIP). T1 = EXTENDED LOOKUP BLOCK THAT FAILED

USGDIP:: HLRZ	T2,.RBEXT(T1)	;GET THE EXTENSION
	CAIE	T2,'UFD'	;IS THIS THE UFD
	JRST	USGFIP		;NO, SFD, TREAT SAME AS A FILE PROTECTION FAILURE
	MOVSI	T2,'Y  '	;GET 'YES'
	MOVEM	T2,USGDAT+UB$UPF ;FLAG IT FOR DOWN STREAM BILLING
	POPJ	P,		;AND RETURN
USGFIP:: MOVSI	T2,'Y  '	;GET 'YES'
	MOVEM	T2,USGDAT+UB$FPF ;FLAG A FILE IS PROTECTED FOR DOWN STREAM BILLING
	POPJ	P,		;AND RETURN

;USGNST --	NEW STRUCTURE TO BE SAVED, T1 = DISK STRUCTURE NAME

USGNST:: MOVEM	T1,DCHBLK	;STORE FOR DSKCHR
	MOVE	T1,[1,,DCHBLK]	;ARG FOR DSKCHR
	DSKCHR	T1,UU.PHY	;DO IT FOR PHYSICAL STRUCTURE
	  SETZB	T1,DCHBLK	;WHAT!
	MOVEM	T1,DCHBLK+1	;SAVE CHARACTERISTICS FOR LATER
	POPJ	P,		;RETURN

;USGNDI	--	BEGIN ACCOUNTING FOR A NEW DIRECTORY.  CALLED WHEN BACKUP
;		LOOKUPS A UFD OR SFD.  T1 = THE EXTENDED LOOKUP BLOCK.

USGNDI:: HLRZ	T2,.RBEXT(T1)	;GET THE EXTENSION
	CAIE	T2,'UFD'	;THIS THE UFD
	JRST	USGFIL		;NO, SFD, COUNT IT AS A FILE
	SETZM	USGDAT		;CLEAR DATA AREA
	MOVE	T2,[USGDAT,,USGDAT+1]
	BLT	T2,USGDAT+UB$ACT-1
	MOVSI	T2,(ASCII/N/)	;GET ASCII 'NO' INDICATOR
	MOVEM	T2,USGDAT+UB$EXP ;SET NOT EXPIRED
	MOVSI	T2,'N  '	;GET SIXBIT 'NO' INDICATOR
	MOVEM	T2,USGDAT+UB$UPF ;UFD IS NOT BEEN PROTECTED AGAINST US
	MOVEM	T2,USGDAT+UB$FPF ;NOR HAS ANY PARTICULAR FILE
	MOVEM	T2,USGDAT+UB$ABO ;AND THERE HASN'T BEEN AN OVERFLOW OF STRINGS
	MOVE	T2,.RBNAM(T1)	;THE PPN
	MOVEM	T2,USGDAT+UB$PPN ;SAVE IT
	MOVE	T2,.RBQTF(T1)	;FCFS QUOTA
	MOVEM	T2,USGDAT+UB$QIN ;SAVE IT
	MOVE	T2,.RBQTO(T1)	;LOGGED OUT QUOTA
	MOVEM	T2,USGDAT+UB$QOU ;SAVE IT
	MOVE	T2,.RBLAD(T1)	;LAST ACCOUNTING DATE/TIME
	MOVEM	T2,USGDAT+UB$LAT ;STORE THAT
	LDB	T2,[POINT 11,.RBPRV(T1),23] ;CREATION TIME (RB.CRT) = LAST LOGIN
	HRRM	T2,USGDAT+UB$LLG ;STORE TIME
	LDB	T2,[POINT 12,.RBPRV(T1),35] ;LOW ORDER DATE (RB.CRD)
	HRLM	T2,USGDAT+UB$LLG ;STORE DATE
	LDB	T2,[POINT 3,.RBEXT(T1),20] ;HIGH ORDER EXTENDED DATE (RB.CRX)
	DPB	T2,[POINT 3,USGDAT+UB$LLG,5] ;COMPLETE DATE
	MOVE	T2,[%CNDTM]	;GET "NOW"
	GETTAB	T2,		;GET IT
	  POPJ	P,		;WHAT!
	MOVEM	T2,.RBLAD(T1)	;NOW IS THE LAST ACCOUNTING DATE/TIME
	CAMLE	T2,.RBDED(T1)	;CHECK EXPIRATION
	SKIPN	.RBDED(T1)	;YES, BUT WAIT, DO WE KNOW THE EXPIRATION DATE
	SKIPA	T2,[ASCII/N/]	;NOT EXPIRED
	MOVSI	T2,(ASCII/Y/)	;IS EXPIRED
	MOVEM	T2,USGDAT+UB$EXP ;SET EXPIRED CORRECTLY
	POPJ	P,		;DON'T COUNT UFD PROPER IN ACCOUNTING

;USGFIL	--	ACCOUNT FOR A FILE. CALLED WHEN BACKUP LOOKUPS THE FILE.
;		T1 = EXTENDED LOOKUP BLOCK.

USGFIL:: PUSH	P,P1		;SAVE CALLERS
	PUSH	P,P2		;...
	PUSH	P,P3		;...
	MOVE	T2,USGDAT+UB$ACN ;NUMBER OF UNIQUE ACCOUNT STRINGS SO FAR
	MOVE	P1,USGTAB	;GET BASE OF THE TABLES
	JUMPE	T2,USGFI5	;FIRST ACCOUNT STRING
USGFI1:	MOVEI	T3,10		;NUMBER OF WORDS IN AN ACCOUNT STRING
	MOVEI	P2,UB$ACT-UB$ACT(P1) ;POINT TO THE STRING
	MOVEI	P3,.RBACT(T1)	;...
USGFI2:	MOVE	T4,(P2)		;GET WORD FROM ACCOUNT STRING
	CAME	T4,(P3)		;MUST HAVE EXACT MATCH FOR ALL WORDS
	JRST	USGFI4		;NO MATCH, TRY NEXT TABLE
	AOS	P2		;NEXT WORD IN STRING
	AOS	P3		;...
	SOJG	T3,USGFI2	;MATCH THEM ALL UP

;HERE WE HAVE THE MATCHING ACCOUNT STRING TABLE IN P1

USGFI3:	SKIPE	P1		;P1 = 0 IF NO MORE ROOM FOR ACCOUNT STRINGS
	AOS	UB$NFL-UB$ACT(P1) ;BUMP NUMBER OF FILES
	AOS	USGDAT+UB$TNF	;BUMP COUNT OF FILES
	MOVE	T2,.RBALC(T1)	;GET ALLOCATED LENGTH OF FILE
	SKIPE	P1
	ADDM	T2,UB$BAL-UB$ACT(P1) ;ADD IN UNDER THIS ACCOUNT STRING
	ADDM	T2,USGDAT+UB$TAU ;ADD IT IN
	MOVE	T2,.RBSIZ(T1)	;GET FILE SIZE (WORDS WRITTEN)
	ADDI	T2,177		;ROUND UP TO FULL DISK BLOCKS
	LSH	T2,-7		;/128
	SKIPE	P1
	ADDM	T2,UB$BWR-UB$ACT(P1) ;ADD IN UNDER ACCOUNT STRING
	ADDM	T2,USGDAT+UB$TWU ;ADD IT IN
	POP	P,P3		;RESTORE CALLERS
	POP	P,P2		;...
	POP	P,P1		;...
	POPJ	P,		;AND RETURN

;HERE WHEN THE ACCOUNT STRINGS DON'T MATCH, TRY NEXT BLOCK

USGFI4:	ADDI	P1,STRLEN	;STEP TO NEXT ACCOUNT STRING BLOCK
	SOJG	T2,USGFI1	;AND LOOK FOR ANOTHER MATCH

;HERE WHEN THE FILE HAS A UNIQUE ACCOUNT STRING, P1 ALREADY POINTS AT NEW BLOCK

USGFI5:	MOVE	T2,USGDAT+UB$ACN ;GET NUMBER OF ACCOUNT STRINGS SO FAR
	CAIL	T2,UB$MAC	;ROOM FOR THE NEW ONE
	JRST	[MOVSI P1,'Y  '	;FLAG TOO MANY ACCOUNT STRINGS
		 MOVEM P1,USGDAT+UB$ABO ;REMEMBER FOR DOWN-STREAM BILLING
		 SETZ P1,	;INDICATE NO TABLE TO UPDATE
		 JRST USGFI3]	;CONTINUE TO COUNT AGAINST UFD PROPER THOUGH
	AOS	USGDAT+UB$ACN	;ANOTHER ACCOUNT STRING PRESENT
	HRLI	T2,.RBACT(T1)	;WHERE IT IS
	HRRI	T2,UB$ACT-UB$ACT(P1) ;WHERE WE WANT IT
	BLT	T2,UB$ACT-UB$ACT+7(P1) ;MOVE INTO TABLES
	SETZM	UB$BAL-UB$ACT(P1) ;START COUNTERS FRESH
	SETZM	UB$BWR-UB$ACT(P1) ;...
	SETZM	UB$NFL-UB$ACT(P1) ;...
	JRST	USGFI3		;AND ADD IT IN

;USGEND	--	MAKE A USAGE ENTRY FOR THE UFD JUST SAVED

USGEND:: MOVSI	T1,'Y  '	;GET ERROR INDICATOR
	CAME	T1,USGDAT+UB$UPF ;CHECK IF THE UFD WAS PROTECTED
	CAMN	T1,USGDAT+UB$FPF ;OR SOME FILES WERE PROTECTED
	JRST	USGEN0		;YES, MUST MAKE THE ENTRY
	SKIPN	USGDAT+UB$ACN	;NOW SEE IF UFD WAS EMPTY
	POPJ	P,		;DON'T BOTHER MAKING THE ENTRY
USGEN0:	PUSH	P,P1		;SAVE CALLERS
	MOVE	P1,[%SIACT]	;GET THE PID OF THE ACTDAE
	GETTAB	P1,		;ASK THE MONITOR
	  SETZ	P1,		;WHAT!
	JUMPE	P1,USGERT	;RETURN IF NOBODY TO TELL THIS TOO
	MOVEM	P1,IPCBLK+.IPCFR ;STORE RECEIVER
	HRRZ	P1,.JBREL##	;GET HIGHEST ADDRESS IN LOW SEG
	LSH	P1,-^D9		;TO PAGE NUMBER
	AOS	P1		;P1 IS NOW THE PAGE WE WILL USE FOR IPCF
USGEN1:	MOVE	T1,[.PAGCD,,T2]	;POINT TO ARGUMENTS FOR CREATE
	MOVEI	T2,1		;1 ARGUMENT
	MOVE	T3,P1		;THE PAGE NUMBER
	PAGE.	T1,		;CREATE THE PAGE
	  JRST	[CAIE T1,PAGNS%	;OUT OF VIRTUAL CORE?
		 JRST USGERT	;NO, GIVE UP
		 MOVEI T1,1	;WAIT 1 SECOND
		 SLEEP T1,	;IN CASE SOME SHOWS UP
		 JRST USGEN1]	;AND TRY IT AGAIN
	HRLI	P1,1000		;SIZE OF IPCF PAGE
	MOVEM	P1,IPCBLK+.IPCFP ;STORE POINTERS
	LSH	P1,^D9		;CONVERT TO AN ADDRESS
	MOVSI	T1,USGDAT	;COLLECTED DATA
	HRRI	T1,(P1)		;WHERE TO MOVE IT
	BLT	T1,UB$ACT-1(P1)	;MOVE IT
	HRL	T1,USGTAB	;WHERE ACCOUNT STRING STUFF IS STORED
	HRRI	T1,UB$ACT(P1)	;WHERE IT GOES
	BLT	T1,UB$ACT+CORREQ-1(P1) ;MOVE IT
	MOVEI	T1,UGDUE$	;TYPE = DISK USAGE ENTRY
	MOVEM	T1,UX$TYP(P1)	;STOPE IT
	SETZM	UB$TNO(P1)	;GET RID OF OLD STUFF FIRST
	SETZM	UB$NOD(P1)	;...
	PJOB	T1,		;GET OUR JOB NUMBER
	MOVEM	T1,UB$JOB(P1)	;STORE IT
	MOVSI	T4,(ASCIZ/D/)	;ASSUME DETACHED
	TRMNO.	T1,		;GET TERMINAL DESIGNATOR
	  JRST	USGEN3		;DETACHED
	DPB	T1,[POINT 9,UB$TNO(P1),35] ;STORE IN CASE NO NETWORKS
	GETLCH	T1		;GET LINE CHARACTERISTICS
	MOVSI	T4,(ASCIZ/T/)	;ASSUME REGULAR TTY
	TLNE	T1,(GL.CTY)	;THE SYSTEM CTY
	MOVSI	T4,(ASCIZ/C/)	;YES
	TLNE	T1,(GL.ITY)	;INVISIBLE (PSEUDO) TTY
	MOVSI	T4,(ASCIZ/P/)	;YES
	HRRZS	T1		;GET RID OF GETLCH BITS
	GTNTN.	T1,		;CONVERT TO NODE AND LINE
	  JRST	USGEN3		;NO NETWORKS
	HRRZM	T1,UB$TNO(P1)	;STORE REAL LINE NUMBER
	HLRZ	T3,T1		;ISOLATE NODE NUMBER
	MOVEI	T2,2		;NUMBER OF ARGUMENTS
	MOVE	T1,[.NDRNN,,T2]	;RETURN NODE NAME FOR NUMBER
	NODE.	T1,		;ASK TODD
	  SKIPA			;FAILED?
	MOVEM	T1,UB$NOD(P1)	;STORE SIXBIT NODE NAME
USGEN3:	MOVEM	T4,UB$TRD(P1)	;STORE TERMINAL DESIGNATOR
	MOVE	T1,[SIXBIT/BACKUP/] ;THIS PROGRAMS NAME
	MOVEM	T1,UB$PNM(P1)	;STORE THAT
	MOVE	T1,.JBVER##	;THE VERSION NUMBER
	MOVEM	T1,UB$PVR(P1)	;AND STORE THAT
	MOVE	T1,DCHBLK	;THE DISK STRUCTURE
	MOVEM	T1,UB$FSN(P1)	;STORE THAT
	LDB	T1,[POINT 1,DCHBLK+1,6] ;GET "PRIVATE" BIT
	AOS	T1		;MAKE 1=PUB, 2=PRIVATE
	MOVEM	T1,UB$FST(P1)	;STORE
	LDB	T1,[POINT 6,DCHBLK+1,26] ;GET CONTROLLER TYPE
	MOVEM	T1,UB$CNT(P1)	;STORE
	LDB	T1,[POINT 3,DCHBLK+1,32] ;GET DEVICE (UNIT) TYPE
	MOVEM	T1,UB$DVT(P1)	;STORE
	MOVEI	T1,IP.CFV	;A PAGE MODE SEND
	MOVEM	T1,IPCBLK+.IPCFL ;STORE FLAG WORD
	SETZM	IPCBLK+.IPCFS	;DON'T SUPPLY A SENDERS PID
USGEN2:	MOVE	T1,[4,,IPCBLK]	;POINT TO THE BLOCK
	IPCFS.	T1,		;SEND OFF THE ACCOUNTING MESSAGE
	  SKIPA			;CHECK FAILURE
	JRST	USGERT		;RETURN
	CAIE	T1,IPCRS%	;MY QUOTA EXCEEDED
	CAIN	T1,IPCRR%	;OR ACTDAE'S QUOTA
USGRTY:	JRST	[MOVEI T1,1	;YES, GIVE ACTDAE A CHANCE TO CATCH UP
		 SLEEP T1,	;SO WAIT A SECOND
		 JRST USGEN2]	;AND TRY IT AGAIN
	CAIN	T1,IPCRY%	;SYSTEM OUT OF FREE SPACE
	JRST	@USGRTY		;YES, WAIT AND RETRY
	LSH	P1,-^D9		;THE PAGE NUMBER AGAIN
	MOVE	T1,[.PAGCD,,T2]	;POINT TO ARGUMENTS FOR DESTROY
	MOVEI	T2,1		;1 ARGUMENT
	MOVE	T3,P1		;THE PAGE NUMBER
	TLO	T3,(1B0)	;MUST DESTROY THE PAGE
	PAGE.	T1,		;DESTROY THE PAGE
	  JFCL			;OH WELL!
USGERT:	POP	P,P1		;...
	POPJ	P,		;AND RETURN

	XLIST			;FORCE OUT LITERALS
	LIT
	LIST

	END