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openmpi/ompi/mpi/fortran/use-mpi-f08/test_cancelled_f08.F90
Jeff Squyres c08f97b030 Fix problems with calling back-end BIND(C) ompi_*_f() functions.
BIND(C) doesn't let us have LOGICAL parameters, so we have to be
creative in how we invoke back-end ompi_*_f() C functions.
Additionally, the mpi_f08 type for MPI_Status presented some
difficulties, too.
    
See the large comment in
ompi/mpi/fortran/use-mpi-f08/mpi-f-interfaces-bind.h that explains
this in much more detail.

This commit was SVN r29384.
2013-10-04 22:43:07 +00:00

30 строки
1014 B
Fortran

! -*- f90 -*-
!
! Copyright (c) 2009-2013 Cisco Systems, Inc. All rights reserved.
! Copyright (c) 2009-2012 Los Alamos National Security, LLC.
! All rights reserved.
! $COPYRIGHT$
subroutine MPI_Test_cancelled_f08(status,flag,ierror)
use :: mpi_f08_types, only : MPI_Status
implicit none
TYPE(MPI_Status), INTENT(IN) :: status
LOGICAL, INTENT(OUT) :: flag
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
integer :: c_ierror
! See note in mpi-f-interfaces-bind.h for why we include an
! interface here and call a PMPI_* subroutine below.
interface
subroutine PMPI_Test_cancelled(status, flag, ierror)
use :: mpi_f08_types, only : MPI_Status
type(MPI_Status), intent(in) :: status
logical, intent(out) :: flag
integer, intent(out) :: ierror
end subroutine PMPI_Test_cancelled
end interface
call PMPI_Test_cancelled(status,flag,c_ierror)
if (present(ierror)) ierror = c_ierror
end subroutine MPI_Test_cancelled_f08