C -*- Mode: Fortran; -*- 

C

C  (C) 2003 by Argonne National Laboratory.

C      See COPYRIGHT in top-level directory.

C

      program main

      implicit none

      include 'mpif.h'

      integer errs, ierr

      include 'attraints.h'

      integer comm, win, buf(10)

      integer curcount, keyval

      logical flag

      external mycopyfn, mydelfn

      integer callcount, delcount

      common /myattr/ callcount, delcount

C

C The only difference between the MPI-2 and MPI-1 attribute caching

C routines in Fortran is that the take an address-sized integer

C instead of a simple integer.  These still are not pointers,

C so the values are still just integers. 

C

      errs      = 0

      callcount = 0

      delcount  = 0

      call mtest_init( ierr )

      call mpi_comm_dup( MPI_COMM_WORLD, comm, ierr )

C Create a new window; use val for an address-sized int

      val = 10

      call mpi_win_create( buf, val, 1,

     &                        MPI_INFO_NULL, comm, win, ierr )

C 

      extrastate = 1001

      call mpi_win_create_keyval( mycopyfn, mydelfn, keyval, 

     &                             extrastate, ierr )

      flag = .true.

      call mpi_win_get_attr( win, keyval, valout, flag, ierr )

      if (flag) then

         errs = errs + 1

         print *, ' get attr returned true when no attr set'

      endif

      valin = 2003

      call mpi_win_set_attr( win, keyval, valin, ierr )

      flag = .false.

      valout = -1

      call mpi_win_get_attr( win, keyval, valout, flag, ierr )

      if (valout .ne. 2003) then

         errs = errs + 1

         print *, 'Unexpected value (should be 2003)', valout, 

     &            ' from attr'

      endif

      valin = 2001

      call mpi_win_set_attr( win, keyval, valin, ierr )

      flag = .false.

      valout = -1

      call mpi_win_get_attr( win, keyval, valout, flag, ierr )

      if (valout .ne. 2001) then

         errs = errs + 1

         print *, 'Unexpected value (should be 2001)', valout, 

     &            ' from attr'

      endif

C

C Test the attr delete function

      delcount   = 0

      call mpi_win_delete_attr( win, keyval, ierr )

      if (delcount .ne. 1) then

         errs = errs + 1

         print *, ' Delete_attr did not call delete function'

      endif

      flag = .true.

      call mpi_win_get_attr( win, keyval, valout, flag, ierr )

      if (flag) then

         errs = errs + 1

         print *, ' Delete_attr did not delete attribute'

      endif

C Test the delete function on window free

      valin = 2001

      call mpi_win_set_attr( win, keyval, valin, ierr )

      curcount = delcount

      call mpi_win_free( win, ierr )

      if (delcount .ne. curcount + 1) then

         errs = errs + 1

         print *, ' did not get expected value of delcount ', 

     &          delcount, curcount + 1

      endif

      ierr = -1

      call mpi_win_free_keyval( keyval, ierr )

      if (ierr .ne. MPI_SUCCESS) then

         errs = errs + 1

         call mtestprinterror( ierr )

      endif

C

C The MPI standard defines null copy and duplicate functions.

C However, are only used when an object is duplicated.  Since

C MPI_Win objects cannot be duplicated, so under normal circumstances,

C these will not be called.  Since they are defined, they should behave

C as defined.  To test them, we simply call them here

      flag   = .false.

      valin  = 7001

      valout = -1

      ierr   = -1

      call MPI_WIN_DUP_FN( win, keyval, extrastate, valin, valout,

     $     flag, ierr ) 

      if (.not. flag) then

         errs = errs + 1

         print *, " Flag was false after MPI_WIN_DUP_FN"

      else if (valout .ne. 7001) then

         errs = errs + 1

         if (valout .eq. -1 ) then

          print *, " output attr value was not copied in MPI_WIN_DUP_FN" 

         endif

         print *, " value was ", valout, " but expected 7001"

      else if (ierr .ne. MPI_SUCCESS) then

         errs = errs + 1

         print *, " MPI_WIN_DUP_FN did not return MPI_SUCCESS"

      endif

      flag   = .true.

      valin  = 7001

      valout = -1

      ierr   = -1

      call MPI_WIN_NULL_COPY_FN( win, keyval, extrastate, valin, valout

     $     ,flag, ierr ) 

      if (flag) then

         errs = errs + 1

         print *, " Flag was true after MPI_WIN_NULL_COPY_FN"

      else if (valout .ne. -1) then

         errs = errs + 1

         print *,

     $        " output attr value was copied in MPI_WIN_NULL_COPY_FN" 

      else if (ierr .ne. MPI_SUCCESS) then

         errs = errs + 1

         print *, " MPI_WIN_NULL_COPY_FN did not return MPI_SUCCESS"

      endif

C

      call mpi_comm_free( comm, ierr )

      call mtest_finalize( errs )

      end

C

C Note that the copyfn is unused for MPI windows, since there is

C (and because of alias rules, can be) no MPI_Win_dup function

      subroutine mycopyfn( oldwin, keyval, extrastate, valin, valout,

     &                     flag, ierr )

      implicit none

      include 'mpif.h'

      integer oldwin, keyval, ierr

      include 'attraints.h'

      logical flag

      integer callcount, delcount

      common /myattr/ callcount, delcount

C increment the attribute by 2

      valout = valin + 2

      callcount = callcount + 1

C

C Since we should *never* call this, indicate an error

      print *, ' Unexpected use of mycopyfn'

      flag = .false.

      ierr = MPI_ERR_OTHER

      end

C

      subroutine mydelfn( win, keyval, val, extrastate, ierr )

      implicit none

      include 'mpif.h'

      integer win, keyval, ierr

      include 'attraints.h'

      integer callcount, delcount

      common /myattr/ callcount, delcount

      delcount = delcount + 1

      if (extrastate .eq. 1001) then

         ierr = MPI_SUCCESS

      else

         print *, ' Unexpected value of extrastate = ', extrastate

         ierr = MPI_ERR_OTHER

      endif

      end