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!
!--------------------------- KDROPN ----------------------------------
!
! 1- programme statistics:
! name : KDROPN, KDRCLS
! use : allocate and release file units associated to a given
! file name. word addressable (KDI), sequential (formatted
! or not) and direct access (DA) files are permitted
! modified : 91-01-24
! author : G. Marleau and A. Hebert
!
! 2- routine parameters:
!
! - function KDROPN(cuname,iactio,iutype,lrda)
!
! open file and allocate unit number. allocate unit number to file
! name if unit is already opened, returns unit number.
!
! input
! cuname : filename c*12
! if cuname=' ', use a default name
! iactio : action on file i
! =0 to allocate a new file
! =1 to access and modify an existing file
! =2 to access an existing file in
! read-only mode
! =3 unknown
! iutype : file type i
! =1 KDI word addressable file
! =2 sequential unformatted
! =3 sequential formatted
! =4 direct access (DA) unformatted file
! ldra : number of words in DA record i
! required for iutype = 4 only
! output
! KDROPN : unit number/error status type(c_ptr)
! address of file (successful allocation)
! == NULL allocation failure
!
! error codes:
! = -1 no more unit available
! = -2 file type requested inconsistent with file type of this file
! = -3 this file has been already opened
! = -4 file name is reserved or too long (FT06F00, FT07F00)
! = -5 illegal file type 1 < iutype < 4
! = -6 (not used)
! = -7 error on open of unformatted sequential file
! = -8 error on open of formatted sequential file
! = -9 error on open of direct access file
! =-10 invalid number of word in direct access record
! lrda must be > 0
!
!--------------------------- KDROPN ----------------------------------
!
integer function KDROPN(cuname,iactio,iutype,lrda)
!----
! subroutine arguments
!----
character(len=*) :: cuname
integer :: iactio,iutype,lrda
!----
! local variables
!----
integer :: ret_val=0
integer, parameter :: nbtape=99,nreser=2,ndummy=4
character :: crdnam*72,cform*11,cstatu*12
integer :: itapno
logical :: lfilop
character(len=8),save,dimension(ndummy) :: cdummy= &
(/ 'DUMMYKDI','DUMMYSQ ','DUMMYCA ','DUMMYIN ' /)
character(len=8),save,dimension(nreser) :: creser= &
(/ 'FT05F001','FT06F001' /)
character(len=22),save,dimension(ndummy) :: ctype= &
(/ 'WORD ADDRESSABLE KDI ','SEQUENTIAL UNFORMATTED', &
'SEQUENTIAL CHARACTER ','DIRECT ACCESS DA ' /)
!----
! check if iutype is valid
!----
if((iutype > 4).or.(iutype <= 1)) then
ret_val=-5
go to 6000
endif
!----
! check if lrda is valid
!----
if((iutype == 4).and.(lrda < 1)) then
ret_val=-10
go to 6000
endif
!----
! check if file name is more than 72 characters
!----
luname= len(cuname)
if(luname > 72) then
ret_val=-4
go to 6000
endif
!----
! check if file name not forbidden
!----
if(luname < 8) go to 120
do ireser=1,nreser
if(cuname(:8) == creser(ireser)) then
ret_val=-4
go to 6000
endif
enddo
!----
! check for dummy file name/allocate dummy file name if requested
!----
do idummy=1,ndummy
if(cuname(:8) == cdummy(idummy)) then
if(idummy /= iutype) then
ret_val=-2
go to 6000
endif
endif
enddo
120 if(cuname == ' ') then
crdnam=cdummy(iutype)
else
crdnam=cuname
endif
!----
! check if file opened/permitted
!----
inquire(file=crdnam,opened=lfilop)
if(lfilop) then
ret_val = -3
go to 6000
endif
!----
! look for never allocated unit location
!----
do jboucl=nbtape,1,-1
itapno=jboucl
inquire(unit=itapno,opened=lfilop)
if(.not.lfilop) go to 121
enddo
!----
! error - no unit number available
!----
ret_val = -1
go to 6000
!
121 if(iutype == 2) then
!----
! open sequential unformatted file
!----
ret_val=-7
cform='UNFORMATTED'
else if(iutype == 3) then
!----
! open sequential formatted file
!----
ret_val=-8
cform='FORMATTED'
else if(iutype == 4) then
!----
! open DA file
!----
ret_val=-9
cform='UNFORMATTED'
endif
if(iactio == 0) then
cstatu='NEW'
else if(iactio == 1) then
cstatu='OLD'
else if(iactio == 2) then
cstatu='OLD'
else
cstatu='UNKNOWN'
endif
if((iutype == 4).and.(iactio == 2)) then
idummy=0
inquire(iolength=lrecl) (idummy,i=1,lrda)
open(unit=itapno,file=crdnam,err=7000,iostat=iercod,form=cform, &
access='DIRECT',recl=lrecl,status=cstatu,action='READ')
else if(iutype == 4) then
idummy=0
inquire(iolength=lrecl) (idummy,i=1,lrda)
open(unit=itapno,file=crdnam,err=7000,iostat=iercod,form=cform, &
access='DIRECT',recl=lrecl,status=cstatu)
else if(((iutype == 2).or.(iutype == 3)).and.(iactio == 0)) then
open(unit=itapno,file=crdnam,err=7000,iostat=iercod,form=cform, &
access='SEQUENTIAL',status=cstatu)
else if(((iutype == 2).or.(iutype == 3)).and.(iactio == 1)) then
open(unit=itapno,file=crdnam,err=7000,iostat=iercod,form=cform, &
access='SEQUENTIAL',position='APPEND',status=cstatu)
else if(((iutype == 2).or.(iutype == 3)).and.(iactio == 2)) then
open(unit=itapno,file=crdnam,err=7000,iostat=iercod,form=cform, &
access='SEQUENTIAL',status=cstatu,action='READ')
rewind(itapno)
endif
KDROPN=itapno
return
6000 write(6,8000) crdnam,ctype(iutype),ret_val
KDROPN=ret_val
return
7000 write(6,9000) crdnam,ctype(iutype),ret_val,iercod
KDROPN=ret_val
return
!----
! error format
!----
8000 format('1',5x,'ERROR IN OPENING OF FILE IN KDROPN'/ &
6x,'FILE NAME = ',a/6x,'FILE TYPE = ',a22/ &
6x,'ERROR CODE= ',i7)
9000 format('1',5x,'ERROR IN OPENING OF FILE IN KDROPN'/ &
6x,'FILE NAME = ',a/6x,'FILE TYPE = ',a22/ &
6x,'ERROR CODE= ',i7,' IERCOD = ',i7)
end function KDROPN
!
!-------------------------- KDRCLS -------------------------------------
!
! - function KDRCLS(itapno,iactio)
!
! close file and release unit number.
!
! input
! itapno : unit number i
! = 0 close all units
! > 0 unit to close
! iactio : action on file i
! = 1 to keep the file;
! = 2 to delete the file.
! output
! KDRCLS : error status i
! = 0 unit closed
! = -2 file not opened
! = -3 this file has been opened by routines other than KDROPN
! = -4 file unit is reserved (5,6)
! = -5 illegal unit number
! = -6 (not used)
! = -7 error on close of unformatted sequential file
! = -8 error on close of formatted sequential file
! = -9 error on close of DA file
! =-10 invalid close action (iactio=1,2 permitted only)
! =-11 type of file not supported
!
!-------------------------- KDRCLS -------------------------------------
!
integer function KDRCLS(itapno,iactio)
!----
! subroutine arguments
!----
integer :: itapno,iactio
!----
! local variables
!----
integer, parameter :: ndummy=4
character(len=10) :: acc
character(len=11) :: frm
character(len=22),save,dimension(ndummy) :: ctype= &
(/ ' ','SEQUENTIAL UNFORMATTED', 'SEQUENTIAL CHARACTER ', &
'DIRECT ACCESS DA ' /)
!
integer, parameter :: nbtape=99
integer :: ret_val=0,itapet=0
logical :: lfilop,lnmd
character (len=72) :: cuname
!----
! invalid unit number
!----
if((itapno <= 0).or.(itapno > nbtape)) then
ret_val=-5
go to 7000
endif
inquire(unit=itapno,opened=lfilop,named=lnmd)
if((.not.lfilop).or.(.not.lnmd)) then
ret_val=-2
go to 7000
endif
!----
! close the file
!----
inquire(unit=itapno,access=acc,form=frm)
if((acc == 'SEQUENTIAL').and.(frm == 'UNFORMATTED')) then
itapet=2
ret_val=-7
else if((acc == 'SEQUENTIAL').and.(frm == 'FORMATTED')) then
itapet=3
ret_val=-8
else if((acc == 'DIRECT').and.(frm == 'UNFORMATTED')) then
itapet=4
ret_val=-9
else
ret_val=-11
go to 7000
endif
if(iactio == 1) then
close(itapno,iostat=iercod,status='KEEP',err=7000)
else if(iactio == 2) then
close(itapno,iostat=iercod,status='DELETE',err=7000)
else
ret_val=-10
go to 7000
endif
KDRCLS=0
return
7000 inquire(unit=itapno,name=cuname)
write(6,9000) itapno,cuname,ctype(itapet),ret_val,iercod
KDRCLS=ret_val
return
!----
! error format
!----
9000 format('1',5x,'ERROR IN CLOSE OF FILE IN KDROPN'/ &
6x,'UNIT NB. = ',i10/6x,'FILE NAME = ',a7/6x,'FILE TYPE = ',a22/ &
6x,'ERROR CODE= ',i7,' IERCOD = ',i7)
end function KDRCLS
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