.MCALL	.MODULE
.MODULE	LOCK,VERSION=04,COMMENT=<LOCK/SYSLIB>,IDENT=No,LIB=Yes

; Copyright (c) 1998 by Mentec, Inc., Nashua, NH.
; All rights reserved
;
; This software is furnished under a license for use only on a
; single computer system and  may  be  copied  only  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 except for  use  on  such
; system and to one who agrees to these license  terms.  Title
; to  and  ownership of the software shall at all times remain
; in Mentec, Inc.
;
; The information in this document is subject to change without
; notice and should not be construed as a commitment by Digital
; Equipment Corporation, or Mentec, Inc.
;
; Digital and Mentec  assume  no  responsibility for the use or
; reliability of its software on equipment which is not supplied
; by Digital  or Mentec,  and listed  in the  Software  Product
; Description.
	.SBTTL	Module Declaration

	.NLIST
	.ENABL	LC
	.DSABL	GBL
	.NLIST	CND
	.LIST
; ++
; FACILITY:
;
;    RT-11 System Subroutine Library
;
; ENVIRONMENT:
;
;    This routine can be used by any job running in a single-job
;    or multi-job environment.
;
; INCLUDE FILES:
;

	; SYSMAC.SML		; RT-11 system macro library.

	.MCALL	.LOCK		; LOCK programmed request.

;
; EXTERNAL REFERENCES:
;

	.GLOBL	$SYSLB		; Include system library work area.
	.SBTTL	LOCK - Fortran-callable Routine

; ++
; FUNCTIONAL DESCRIPTION:
;
;    The LOCK routine is used to keep the USR in memory  for a series  of
;    operations involving various RT-11 file management functions.  After
;    a LOCK  has  been executed, the UNLOCK routine must be  executed  to
;    release the USR from memory.
;    
; CALLING SEQUENCE:
;
;    CALL LOCK
;
; RETURNED FUNCTION VALUE:
;
;    ** None **
;
; --

	.PSECT	SYS$I

LOCK::				
	.LOCK			; Lock USR for exclusive use by calling job.
	RETURN			; Return to caller.

	.END