! This file created from test/mpi/f77/attr/commattrf.f with f77tof90

! -*- Mode: Fortran; -*- 

!

!  (C) 2003 by Argonne National Laboratory.

!      See COPYRIGHT in top-level directory.

!

      program main

      use mpi

      integer errs, ierr

      integer (kind=MPI_ADDRESS_KIND) extrastate, valin, valout, val

      integer comm1, comm2

      integer curcount, keyval

      logical flag

      external mycopyfn, mydelfn

      integer callcount, delcount

      common /myattr/ callcount, delcount

!

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

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

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

! so the values are still just integers. 

!

      errs      = 0

      callcount = 0

      delcount  = 0

      call mtest_init( ierr )

      call mpi_comm_dup( MPI_COMM_WORLD, comm1, ierr )

! 

      extrastate = 1001

      call mpi_comm_create_keyval( mycopyfn, mydelfn, keyval,  &

      &                             extrastate, ierr )

      flag = .true.

      call mpi_comm_get_attr( comm1, keyval, valout, flag, ierr )

      if (flag) then

         errs = errs + 1

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

      endif

      valin = 2003

      call mpi_comm_set_attr( comm1, keyval, valin, ierr )

      flag = .false.

      valout = -1

      call mpi_comm_get_attr( comm1, 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_comm_set_attr( comm1, keyval, valin, ierr )

      flag = .false.

      valout = -1

      call mpi_comm_get_attr( comm1, keyval, valout, flag, ierr )

      if (valout .ne. 2001) then

         errs = errs + 1

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

      &            ' from attr'

      endif

!

! Test the copy function

      valin = 5001

      call mpi_comm_set_attr( comm1, keyval, valin, ierr )

      call mpi_comm_dup( comm1, comm2, ierr )

      flag = .false.

      call mpi_comm_get_attr( comm1, keyval, valout, flag, ierr )

      if (valout .ne. 5001) then

         errs = errs + 1

         print *, 'Unexpected output value in comm ', valout

      endif

      flag = .false.

      call mpi_comm_get_attr( comm2, keyval, valout, flag, ierr )

      if (valout .ne. 5003) then

         errs = errs + 1

         print *, 'Unexpected output value in comm2 ', valout

      endif

! Test the delete function      

      curcount = delcount

      call mpi_comm_free( comm2, ierr )

      if (delcount .ne. curcount + 1) then

         errs = errs + 1

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

      &          delcount, curcount + 1

      endif

!

! Test the attr delete function

      call mpi_comm_dup( comm1, comm2, ierr )

      valin      = 6001

      extrastate = 1001

      call mpi_comm_set_attr( comm2, keyval, valin, ierr )

      delcount   = 0

      call mpi_comm_delete_attr( comm2, keyval, ierr )

      if (delcount .ne. 1) then

         errs = errs + 1

         print *, ' Delete_attr did not call delete function'

      endif

      flag = .true.

      call mpi_comm_get_attr( comm2, keyval, valout, flag, ierr )

      if (flag) then

         errs = errs + 1

         print *, ' Delete_attr did not delete attribute'

      endif

      call mpi_comm_free( comm2, ierr )

!

      ierr = -1

      call mpi_comm_free_keyval( keyval, ierr )

      if (ierr .ne. MPI_SUCCESS) then

         errs = errs + 1

         call mtestprinterror( ierr )

      endif

      call mpi_comm_free( comm1, ierr )

      call mtest_finalize( errs )

      call mpi_finalize( ierr )

      end

!

      subroutine mycopyfn( oldcomm, keyval, extrastate, valin, valout, &

      &                     flag, ierr )

      use mpi

      integer oldcomm, keyval, ierr

      integer (kind=MPI_ADDRESS_KIND) extrastate, valin, valout, val

      logical flag

      integer callcount, delcount

      common /myattr/ callcount, delcount

! increment the attribute by 2

      valout = valin + 2

      callcount = callcount + 1

      if (extrastate .eq. 1001) then

         flag = .true.

         ierr = MPI_SUCCESS

      else

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

         flag = .false.

         ierr = MPI_ERR_OTHER

      endif

      end

!

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

      use mpi

      integer comm, keyval, ierr

      integer (kind=MPI_ADDRESS_KIND) extrastate, valin, valout, val

      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