! StarPU --- Runtime system for heterogeneous multicore architectures.
!
! Copyright (C) 2016  Inria
!
! StarPU is free software; you can redistribute it and/or modify
! it under the terms of the GNU Lesser General Public License as published by
! the Free Software Foundation; either version 2.1 of the License, or (at
! your option) any later version.
!
! StarPU is distributed in the hope that it will be useful, but
! WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
!
! See the GNU Lesser General Public License in COPYING.LGPL for more details.

module fstarpu_mod
        use iso_c_binding

        integer(c_int), bind(C, name="fstarpu_r") :: FSTARPU_R
        integer(c_int), bind(C, name="fstarpu_w") :: FSTARPU_W
        integer(c_int), bind(C, name="fstarpu_rw") :: FSTARPU_RW
        integer(c_int), bind(C, name="fstarpu_scratch") :: FSTARPU_SCRATCH
        integer(c_int), bind(C, name="fstarpu_redux") :: FSTARPU_REDUX

        type(c_ptr), bind(C, name="fstarpu_data") :: FSTARPU_DATA

        interface
                subroutine fstarpu_init () bind(C)
                end subroutine fstarpu_init

                subroutine fstarpu_shutdown () bind(C,name="starpu_shutdown")
                end subroutine fstarpu_shutdown

                function fstarpu_codelet_allocate () bind(C)
                        use iso_c_binding, only: c_ptr
                        type(c_ptr) :: fstarpu_codelet_allocate
                end function fstarpu_codelet_allocate

                subroutine fstarpu_codelet_free (cl) bind(C)
                        use iso_c_binding, only: c_ptr
                        type(c_ptr), value, intent(in) :: cl
                end subroutine fstarpu_codelet_free

                subroutine fstarpu_codelet_add_cpu_func (cl, f_ptr) bind(C)
                        use iso_c_binding, only: c_ptr, c_funptr
                        type(c_ptr), value, intent(in) :: cl
                        type(c_funptr), value, intent(in) :: f_ptr
                end subroutine fstarpu_codelet_add_cpu_func

                subroutine fstarpu_codelet_add_cuda_func (cl, f_ptr) bind(C)
                        use iso_c_binding, only: c_ptr, c_funptr
                        type(c_ptr), value, intent(in) :: cl
                        type(c_funptr), value, intent(in) :: f_ptr
                end subroutine fstarpu_codelet_add_cuda_func

                subroutine fstarpu_codelet_add_opencl_func (cl, f_ptr) bind(C)
                        use iso_c_binding, only: c_ptr, c_funptr
                        type(c_ptr), value, intent(in) :: cl
                        type(c_funptr), value, intent(in) :: f_ptr
                end subroutine fstarpu_codelet_add_opencl_func

                subroutine fstarpu_codelet_add_buffer (cl, mode) bind(C)
                        use iso_c_binding, only: c_ptr, c_int
                        type(c_ptr), value, intent(in) :: cl
                        integer(c_int), value, intent(in) :: mode
                end subroutine fstarpu_codelet_add_buffer

                function fstarpu_vector_data_register(vector, nx, elt_size, ram) bind(C)
                        use iso_c_binding
                        type(c_ptr) :: fstarpu_vector_data_register
                        type(c_ptr), value, intent(in) :: vector
                        integer(c_int), value, intent(in) :: nx
                        integer(c_size_t), value, intent(in) :: elt_size
                        integer(c_int), value, intent(in) :: ram
                end function fstarpu_vector_data_register

                function fstarpu_vector_get_ptr(buffers, i) bind(C)
                        use iso_c_binding
                        type(c_ptr) :: fstarpu_vector_get_ptr
                        type(c_ptr), value, intent(in) :: buffers
                        integer(c_int), value, intent(in) :: i
                end function fstarpu_vector_get_ptr

                function fstarpu_vector_get_nx(buffers, i) bind(C)
                        use iso_c_binding
                        integer(c_int) :: fstarpu_vector_get_nx
                        type(c_ptr), value, intent(in) :: buffers
                        integer(c_int), value, intent(in) :: i
                end function fstarpu_vector_get_nx

                subroutine fstarpu_data_unregister (dh) bind(C)
                        use iso_c_binding, only: c_ptr
                        type(c_ptr), value, intent(in) :: dh
                end subroutine fstarpu_data_unregister

                subroutine fstarpu_insert_task(arglist) bind(C)
                        use iso_c_binding, only: c_ptr
                        type(c_ptr), dimension(:), intent(in) :: arglist
                end subroutine fstarpu_insert_task

                subroutine fstarpu_task_wait_for_all () bind(C,name="starpu_task_wait_for_all")
                end subroutine fstarpu_task_wait_for_all

        end interface

        ! contains

end module fstarpu_mod