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createset.f
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LOGICAL FUNCTION CREATESET( FIDX, RNAME, PHYSNAME, FSTATUS )
!***********************************************************************
! Function body starts at line 41
!
! DESCRIPTION:
! Creates a new file set based on the file description information,
! opens individual files and sets up internal memory structures
!
! PRECONDITIONS REQUIRED:
! File description in FDESC3.EXT and MODFILESET
!
! SUBROUTINES AND FUNCTIONS CALLED:
! OPEN3 - opens an individual file
!
! REVISION HISTORY:
! Created 6/02 by C. Seppanen
!
!***************************************************************************
!
! Project Title: FileSetAPI
! File: @(#)$Id$
!
! COPYRIGHT (C) 2004, Environmental Modeling for Policy Development
! All Rights Reserved
!
! Carolina Environmental Program
! University of North Carolina at Chapel Hill
! 137 E. Franklin St., CB# 6116
! Chapel Hill, NC 27599-6116
!
! smoke@unc.edu
!
! Pathname: $Source$
! Last updated: $Date$
!
!*************************************************************************
!........ Modules for public variables
USE MODFILESET
IMPLICIT NONE
!........ Include files
INCLUDE 'IODECL3.EXT' ! I/O API function declarations
!........ External functions
LOGICAL, EXTERNAL :: SETENVVAR
!........ Subroutine arguments
INTEGER, INTENT(IN) :: FIDX ! file index
CHARACTER(16), INTENT(IN) :: RNAME ! root logical file name
CHARACTER(256), INTENT(IN) :: PHYSNAME ! physical file name
INTEGER, INTENT(IN) :: FSTATUS ! file mode (read, read/write)
!........ Local variables
INTEGER I, J, K ! counters
INTEGER IOS ! I/O status
INTEGER VARPOS ! variable position
INTEGER BLANKS ! number of blank spaces in FDESC3D
INTEGER FDESCPOS ! position in FDESC3D array
LOGICAL EFLAG ! true: error has occurred
CHARACTER(2) INTBUF ! integer string buffer
CHARACTER(16) LNAME ! temporary logical file name
CHARACTER(256) TEMPNAME ! temporary physical file name
CHARACTER(300) MESG ! message buffer
CHARACTER(16) :: PROGNAME = 'CREATESET' ! program name
!-------------------------------------
! Begin body of function CREATESET
!-------------------------------------
!........ Allocate memory for logical file names and variables
ALLOCATE( FILE_INFO( FIDX )%LNAMES( NFILESET ), STAT=IOS )
CALL CHECKMEM( IOS, 'FILE_INFO%LNAMES', PROGNAME )
ALLOCATE( FILE_INFO( FIDX )%VARS( NVARSET,2 ), STAT=IOS )
CALL CHECKMEM( IOS, 'FILE_INFO%VARS', PROGNAME )
!........ Loop through individual files in the set
VARPOS = 1
DO I = 1, NFILESET
!............ Set file description values
NVARS3D = VARS_PER_FILE( I )
VTYPE3D( 1:NVARS3D ) =
& VTYPESET( VARPOS:VARPOS + NVARS3D - 1 )
VNAME3D( 1:NVARS3D ) =
& VNAMESET( VARPOS:VARPOS + NVARS3D - 1 )
UNITS3D( 1:NVARS3D ) =
& VUNITSET( VARPOS:VARPOS + NVARS3D - 1 )
VDESC3D( 1:NVARS3D ) =
& VDESCSET( VARPOS:VARPOS + NVARS3D - 1 )
!............ On first time through, find space in FDESC3D array
IF( I == 1 ) THEN
BLANKS = 0
DO J = 1, MXDESC3
IF( FDESC3D( J ) /= '' ) THEN
BLANKS = 0
ELSE
BLANKS = BLANKS + 1
END IF
!.................... If we have 3 consecutive open spots, add file info
IF( BLANKS == 3 ) THEN
WRITE( FDESC3D( J - 2 ),93010 )
& '/NUMBER OF FILES/', NFILESET
WRITE( FDESC3D( J - 1 ),93010 )
& '/FILE POSITION/', I
WRITE( FDESC3D( J ),93010 )
& '/NUMBER OF VARIABLES/', NVARSET
!........................ Save position for writing subsequent info
FDESCPOS = J - 1
EXIT
END IF
!.................... Couldn't find space
IF( J == MXDESC3 ) THEN
MESG = 'No spaces available in FDESC3D array'
CALL M3WARN( PROGNAME, 0, 0, MESG )
CREATESET = .FALSE.
RETURN
END IF
END DO
ELSE
!................ Add current file position number
WRITE( FDESC3D( FDESCPOS ),93010 )
& '/FILE POSITION/', I
END IF
!................ Create new logical and physical file names if needed
IF( NFILESET > 1 ) THEN
WRITE( INTBUF, '(I2)' ) I
INTBUF = ADJUSTL( INTBUF )
LNAME = TRIM( RNAME ) // TRIM( INTBUF )
CALL APPENDNAME( PHYSNAME, I, TEMPNAME, EFLAG )
IF( EFLAG ) THEN
CREATESET = .FALSE.
RETURN
END IF
!................ Set new env. variable
IF( .NOT. SETENVVAR( LNAME, TEMPNAME ) ) THEN
CREATESET = .FALSE.
RETURN
END IF
ELSE
LNAME = RNAME
END IF
!............ Try to open file
IF( .NOT. OPEN3( LNAME, FSTATUS, PROGNAME ) ) THEN
CREATESET = .FALSE.
RETURN
END IF
!............ Store logical file names and variables
FILE_INFO( FIDX )%LNAMES( I ) = LNAME
FILE_INFO( FIDX )%VARS( VARPOS:VARPOS+NVARS3D-1,1 ) =
& VNAME3D( 1:NVARS3D )
FILE_INFO( FIDX )%VARS( VARPOS:VARPOS+NVARS3D-1,2 ) = LNAME
VARPOS = VARPOS + NVARS3D
END DO ! loop over individual files
!........ Reset FDESC3D array back to original
!.. (remove file number and position info)
FDESC3D( FDESCPOS-1:FDESCPOS+1 ) = ''
CREATESET = .TRUE.
RETURN
!---------- Format statements --------------
93010 FORMAT ( A, I4 )
END FUNCTION CREATESET