quantum-espresso/PW/error_handler.f90

124 lines
3.2 KiB
Fortran

!
! Copyright (C) 2001 PWSCF group
! This file is distributed under the terms of the
! GNU General Public License. See the file `License'
! in the root directory of the present distribution,
! or http://www.gnu.org/copyleft/gpl.txt .
!
module error_handler
implicit none
private
public :: init_error, add_name, chop_name, error_mem, warning
type chain
character (len=35) :: routine_name
type(chain), pointer :: previous_link
end type chain
type(chain), pointer :: routine_chain
contains
subroutine init_error(routine_name)
implicit none
character (len=*), intent(in) :: routine_name
allocate(routine_chain)
routine_chain%routine_name = routine_name
nullify(routine_chain%previous_link)
return
end subroutine init_error
subroutine add_name(routine_name)
implicit none
character (len=*), intent(in) :: routine_name
type(chain), pointer :: new_link
allocate(new_link)
new_link%routine_name = routine_name
new_link%previous_link => routine_chain
routine_chain => new_link
return
end subroutine add_name
subroutine chop_name
implicit none
type(chain), pointer :: chopped_chain
chopped_chain => routine_chain%previous_link
deallocate(routine_chain)
routine_chain => chopped_chain
return
end subroutine chop_name
recursive subroutine trace_back(error_code)
implicit none
integer :: error_code
write(unit=*,fmt=*) " Called by ", routine_chain%routine_name
if (.not.associated(routine_chain%previous_link)) then
write(unit=*,fmt=*) &
" +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++"
write(unit=*,fmt=*) " "
if( error_code > 0 ) then
stop
else
return
end if
end if
routine_chain => routine_chain%previous_link
call trace_back(error_code)
end subroutine trace_back
subroutine error_mem(message,error_code)
character (len=*), intent(in) :: message
integer, intent(in), optional :: error_code
integer :: action_code
type(chain), pointer :: save_chain
if (present(error_code)) then
action_code = error_code
else
action_code = 1
end if
if( action_code /= 0 ) then
write(unit=*,fmt=*) " "
write(unit=*,fmt=*) &
" +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++"
if( action_code > 0 ) then
write(unit=*,fmt=*) " Fatal error in routine `", &
trim(routine_chain%routine_name),"': ",message
else
write(unit=*,fmt=*) " Warning from routine `", &
trim(routine_chain%routine_name),"': ",message
save_chain => routine_chain
end if
write(unit=*,fmt=*) &
" +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++"
routine_chain => routine_chain%previous_link
call trace_back(action_code)
routine_chain => save_chain
end if
return
end subroutine error_mem
subroutine warning(message)
character (len=*), intent(in) :: message
call error_mem(message,-1)
return
end subroutine warning
end module error_handler