Memory.f90

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module memorytypemodule
 
  use kindmodule, only: dp, lgp, i4b
  use constantsmodule, only: lenmempath, lenmemaddress, lentimeseriesname, &
                             lenvarname, maxmemrank, lenmemtype, &
                             tabstring, tabinteger, &
                             tabcenter, tableft, tabright
  use characterstringmodule, only: characterstringtype
  use tablemodule, only: tabletype
  use memoryhelpermodule, only: create_mem_address
 
  implicit none
  private
  public :: memorytype
 
  type memorytype
    character(len=LENVARNAME) :: name !< name of the array
    character(len=LENVARNAME) :: mastername = 'none' !< name of the master array
    character(len=LENMEMPATH) :: path !< path to memory object
    character(len=LENMEMPATH) :: masterpath = 'none' !< path to master memory object
    character(len=LENMEMTYPE) :: memtype !< type (INTEGER or DOUBLE)
    integer(I4B) :: id !< id, not used
    integer(I4B) :: nrealloc = 0 !< number of times reallocated
    integer(I4B) :: isize = -1 !< size of the array, equal to the number of array elements; 1 for scalars
    integer(I4B) :: element_size = 0 !< byte size of an element; string length
    integer(I4B) :: set_handler_idx = 0 !< index of side effect handler for external access
    logical(LGP) :: master = .true. !< master copy, others point to this one
    character(len=:), pointer :: strsclr => null() !< pointer to the character string
    logical(LGP), pointer :: logicalsclr => null() !< pointer to the logical
    integer(I4B), pointer :: intsclr => null() !< pointer to the integer
    real(dp), pointer :: dblsclr => null() !< pointer to the double
    character(len=:), dimension(:), pointer, contiguous :: astr1d => null() !< pointer to the 1d character string array
    integer(I4B), dimension(:), pointer, contiguous :: aint1d => null() !< pointer to 1d integer array
    integer(I4B), dimension(:, :), pointer, contiguous :: aint2d => null() !< pointer to 2d integer array
    integer(I4B), dimension(:, :, :), pointer, contiguous :: aint3d => null() !< pointer to 3d integer array
    real(dp), dimension(:), pointer, contiguous :: adbl1d => null() !< pointer to 1d double array
    real(dp), dimension(:, :), pointer, contiguous :: adbl2d => null() !< pointer to 2d double array
    real(dp), dimension(:, :, :), pointer, contiguous :: adbl3d => null() !< pointer to 3d double array
    type(characterstringtype), dimension(:), pointer, contiguous :: &
      acharstr1d => null() !< pointer to the 1d character string array
  contains
    procedure :: table_entry
    procedure :: mt_associated
    procedure :: mt_deallocate
  end type
 
contains
 
  subroutine table_entry(this, memtab)
    ! -- dummy
    class(memorytype) :: this
    type(tabletype), intent(inout) :: memtab
    ! -- local
    character(len=16) :: cmem
    character(len=LENMEMADDRESS) :: cptr
    integer(I4B) :: ipos
    ! -- formats
    !
    ! -- determine memory type
    ipos = index(this%memtype, ' (')
    if (ipos < 1) then
      ipos = 16
    else
      ipos = min(16, ipos - 1)
    end if
    cmem = this%memtype(1:ipos)
    !
    ! -- Set pointer string
    cptr = '--'
    if (.not. this%master) then
      cptr = create_mem_address(this%masterPath, this%mastername)
    end if
    !
    ! -- write data to the table
    call memtab%add_term(this%path)
    call memtab%add_term(this%name)
    call memtab%add_term(cmem)
    call memtab%add_term(this%isize)
    call memtab%add_term(cptr)
  end subroutine table_entry
 
  function mt_associated(this) result(al)
    class(memorytype) :: this
    logical :: al
    al = .false.
    if (associated(this%strsclr)) al = .true.
    if (associated(this%logicalsclr)) al = .true.
    if (associated(this%intsclr)) al = .true.
    if (associated(this%dblsclr)) al = .true.
    if (associated(this%astr1d)) al = .true.
    if (associated(this%aint1d)) al = .true.
    if (associated(this%aint2d)) al = .true.
    if (associated(this%aint3d)) al = .true.
    if (associated(this%adbl1d)) al = .true.
    if (associated(this%adbl2d)) al = .true.
    if (associated(this%adbl3d)) al = .true.
    if (associated(this%acharstr1d)) al = .true.
  end function mt_associated
 
  subroutine mt_deallocate(this)
    class(memorytype) :: this
    integer(I4B) :: n
 
    if (associated(this%strsclr)) then
      if (this%master) deallocate (this%strsclr)
      nullify (this%strsclr)
    end if
 
    if (associated(this%logicalsclr)) then
      if (this%master) deallocate (this%logicalsclr)
      nullify (this%logicalsclr)
    end if
 
    if (associated(this%intsclr)) then
      if (this%master) deallocate (this%intsclr)
      nullify (this%intsclr)
    end if
 
    if (associated(this%dblsclr)) then
      if (this%master) deallocate (this%dblsclr)
      nullify (this%dblsclr)
    end if
 
    if (associated(this%astr1d)) then
      if (this%master) deallocate (this%astr1d)
      nullify (this%astr1d)
    end if
 
    if (associated(this%aint1d)) then
      if (this%master) deallocate (this%aint1d)
      nullify (this%aint1d)
    end if
 
    if (associated(this%aint2d)) then
      if (this%master) deallocate (this%aint2d)
      nullify (this%aint2d)
    end if
 
    if (associated(this%aint3d)) then
      if (this%master) deallocate (this%aint3d)
      nullify (this%aint3d)
    end if
 
    if (associated(this%adbl1d)) then
      if (this%master) deallocate (this%adbl1d)
      nullify (this%adbl1d)
    end if
 
    if (associated(this%adbl2d)) then
      if (this%master) deallocate (this%adbl2d)
      nullify (this%adbl2d)
    end if
 
    if (associated(this%adbl3d)) then
      if (this%master) deallocate (this%adbl3d)
      nullify (this%adbl3d)
    end if
 
    if (associated(this%acharstr1d)) then
      if (this%master) then
        do n = 1, size(this%acharstr1d)
          call this%acharstr1d(n)%destroy()
        end do
        deallocate (this%acharstr1d)
      end if
      nullify (this%acharstr1d)
    end if
  end subroutine mt_deallocate
 
end module memorytypemodule