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Trailing-Edge - PDP-10 Archives - bb-bt99g-bb - foropn.c11
There are 2 other files named foropn.c11 in the archive. Click here to see a list.
 INS 1084/2	;11C1
	4211	JLC	2-May-85
		Deallocate channels allocated by accident by TOPS-10 on FILOPs
		which fail, thus preventing undeserved "out of channels" errors
		for programs which open a few files many times. Also, don't
		return path information if the path block wasn't filled in,
		such as for protection failures.

	4212	JLC	2-May-85
		Fix yet another DATE75 bug, this one due to the fact that TOPS-10
		deposits the rename error code in the right half of .RBEXT, where
		the low-order 15 bits of the creation date reside. This happened
		only on a rename failure after DIALOG.

	4213	JLC	9-May-85
		Make sure BLOCKSIZE is an integral multiple of RECL for
		fixed-length records on industry magtape; issue fatal error
		if not.

 REP 22/11	;11C2
		JUMPN	T1,CNFMT5	;Jump if it is specified
 WIT
		JUMPN	T1,CNFBLR	;[4213] Jump if it is specified
 INS 26/11	;11C3
	CNFBLR:	LOAD	T1,BLKSZ(D)	;[4213] GET BLOCKSIZE
		CAIN	T1,0		;[4213] IF NOT SPECIFIED FOR FIXED RECORDS
		 $DCALL	BLZ		;[4213] IT IS A FATAL ERROR
		MOVE	T2,RSIZE(D)	;[4213] GET RECORDSIZE
		IDIV	T1,T2		;[4213] DIVIDE BLOCKSIZE BY RECORDSIZE
		JUMPE	T2,CNFMT5	;[4213] IF NO REMAINDER, IT'S OK
		 $DCALL	FBR		;[4213] RECORDS MUST FIT EXACTLY INTO BLOCK

 REP 30/11	;11C4
	CNFMT3:;LOAD	T1,RECT(D)	;Get /RECORDTYPE
 WIT
	CNFMT3:LOAD	T1,RECTP(D)	;[4213] Get /RECORDTYPE
 REP 23/51	;11C5
		AOS	(P)		;FOUND. SKIP RETURN
		PJRST	SETPPB		;[4134] POINT BACK TO PATH BLOCK AGAIN

	DLERR:	SETZM	FBLK(D)		;CLEAR CHANNEL INFO
		CAIN	T1,ERPRT%	;PROTECTION FAILURE?
		 AOS	(P)		;YES. WE REALLY FOUND THE FILE
		PJRST	SETPPB		;[4134] POINT TO PATH BLOCK AGAIN
 WIT
	LOOKOK:	AOS	(P)		;[4211] FOUND. SKIP RETURN
		PJRST	SETPPB		;[4134] POINT BACK TO PATH BLOCK AGAIN

	DLERR:	CAIN	T1,ERPRT%	;PROTECTION FAILURE?
		 JRST	LOOKOK		;[4211] YES. WE REALLY FOUND THE FILE
		PUSH	P,T1		;[4211] SAVE ERROR CODE
		PUSHJ	P,RELJFN	;[4211] RELEASE THE CHANNEL (IT'S USELESS)
		POP	P,T1		;[4211] RESTORE ERROR CODE
		PJRST	SETPPB		;[4134] POINT BACK TO PATH BLOCK AGAIN
 INS 44/51	;11C6
		MOVEM	T1,PTHB(D)	;[4211] ALSO IN PATH BLOCK IF FILOP FAILS
 INS 101/51	;11C7
		SKIPE	PTHB+.PTSTR(D)	;[4211] ANY RETURNED DEVICE?
 REP 256/51	;11C8
		 $ACALL	CLS		;FAILED. TYPE MSG AND DIE
 WIT
		 TRN			;[4211] IT WAS ALREADY GONE!
 INS 19/74	;11C9
		PUSH	P,T1		;[4211] SAVE ERROR CODE
		PUSHJ	P,RELJFN	;[4211] RELEASE THE CHANNEL (IT'S USELESS)
		POP	P,T1		;[4211]
 REP 3/102	;11C10
	CLDEL:	PUSHJ	P,DLOOK		;LOOKUP FILE
		 $DCALL	DEL		;CAN'T, SO WE CAN'T DELETE IT
		MOVEI	T1,.FODLT	;DELETE FILE
		HRRM	T1,FBLK(D)
 WIT
	CLDEL:				;[4211]
					;[4211]
		MOVE	T1,[FO.PRV+FO.ASC+.FODLT] ;[4211] DELETE THE FILE
		MOVEM	T1,FBLK(D)	;[4211]
 REP 10/102	;11C11
		 $DCALL	DEL
 WIT
		 JRST	DFAIL		;[4211] FAILED. GO RELEASE CHANNEL
 INS 20/102	;11C12
	DFAIL:	PUSH	P,T1		;[4211] SAVE ERROR CODE
		PUSHJ	P,RELJFN	;[4211] RELEASE CHANNEL
		POP	P,T1		;[4211] RESTORE ERROR CODE
		$DCALL	DEL		;[4211] ISSUE ERROR MESSAGE AND RETURN

 INS 38/103	;11C13
		MOVE	T2,%RNAMD	;[4212] GET RENAME DDB ADDRESS
		MOVE	T3,LKPB+.RBEXT(D) ;[4212] RESTORE OLD DATE BITS
		HRRM	T3,LKPB+.RBEXT(T2) ;[4212] RENAME FAILURE BLEW THEM AWAY
 SUM 147498