user_access_singleton.f90

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module user_access_singleton
  use case, only : case_t
  implicit none
  private
 
  type, public :: user_access_t
     type(case_t), pointer :: case => null()
   contains
     procedure, pass(this) :: init => user_access_init
     procedure, pass(this) :: free => user_access_free
  end type user_access_t
 
  type(user_access_t), target, public :: neko_user_access
 
contains
 
  subroutine user_access_init(this, case)
    class(user_access_t), intent(inout) :: this
    type(case_t), target :: case
 
    this%case => case
  end subroutine user_access_init
 
  subroutine user_access_free(this)
    class(user_access_t), intent(inout) :: this
 
    if (associated(this%case)) this%case => null()
  end subroutine user_access_free
 
end module user_access_singleton