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module utilities
#ifdef WINDOWS
character, parameter::dir_sep = '\'
#else
character, parameter::dir_sep = '/'
#endif
contains
function is_absolute_path(path)
implicit none
logical::is_absolute_path
character(len=*), intent(in)::path
is_absolute_path = .false.
if(path(1:1) == dir_sep) then
is_absolute_path = .true.
else
#ifdef WINDOWS
if(path(2:2) == ":") then
is_absolute_path = .true.
end if
#endif
end if
end function is_absolute_path
subroutine combine_paths(first, second, res)
implicit none
character(len=*), intent(in)::first, second
character(len=*), intent(out)::res
integer::i
i = len_trim(first)
if(first(i:i) == dir_sep) then
res = trim(first)//trim(second)
else
res = trim(first)//dir_sep//trim(second)
end if
end subroutine combine_paths
subroutine write_date_and_time(unit_number, values)
implicit none
integer, intent(in)::unit_number
integer, intent(in), dimension(8)::values
write(unit_number, '(I4, A1, I2, A1, I2, 1X, I2, A1, I2, A1, I2)') &
values(1), "-", &
values(2), "-", &
values(3), &
values(5), ":", &
values(6), ":", &
values(7)
end subroutine write_date_and_time
function remove_directory(absolute_dir, and_files)
implicit none
character(*), intent(in)::absolute_dir
logical, intent(in), optional::and_files
logical::remove_directory
character(len=8)::cmd, flags
integer::retval
#ifdef WINDOWS
flags = " "
cmd = "rmdir"
#else
flags = "-r"
cmd = "rm"
#endif
if(present(and_files)) then
if(and_files) then
#ifdef WINDOWS
flags = "/S /Q"
#else
flags = "-rf"
#endif
end if
end if
call execute_command_line(trim(cmd)//" "//trim(flags)//" "//trim(absolute_dir), &
wait=.true., exitstat=retval)
remove_directory = (retval == 0)
end function remove_directory
function read_into_buffer(unit_number, buffer)
implicit none
integer, intent(in)::unit_number
character, dimension(*), intent(out)::buffer
integer::read_into_buffer
integer::i, ierr
ierr = 0
i = 0
do while(ierr == 0 .and. i < len(buffer))
i = i + 1
read(unit_number, iostat=ierr) buffer(i)
end do
if(ierr /= 0) then
i = i - 1
end if
read_into_buffer = i
end function read_into_buffer
function generate_temporary_filename() result(fullpath)
use iso_c_binding
implicit none
character(len=:), pointer::fullpath
type(c_ptr)::tmp_name
character(kind=c_char), dimension(:), pointer::cfullpath
integer(kind=c_size_t)::clength
integer::i
interface
function c_strlen(p) bind(c, name='strlen')
use iso_c_binding
type(c_ptr), value::p
integer(kind=c_size_t)::strlen
end function c_strlen
function c_malloc(x) bind(c, name='malloc')
use iso_c_binding
type(c_ptr)::c_malloc
integer(kind=c_size_t), value::x
end function c_malloc
subroutine c_free(p) bind(c, name='free')
use iso_c_binding
type(c_ptr), value::p
end subroutine c_free
end interface
#ifdef WINDOWS
interface
function GetTempPath(n, b) bind(c, name='GetTempPathA')
use iso_c_binding
integer(kind=c_int32_t)::GetTempPath
integer(kind=c_int32_t), value::n
type(c_ptr), value::b
end function GetTempPath
function GetTempFileName(pn, prefix, unique, b) bind(c, name='GetTempFileNameA')
use iso_c_binding
integer(kind=c_int)::GetTempFileName
integer(kind=c_int), value::unique
type(c_ptr), value::pn, prefix, b
end function GetTempFileName
end interface
type(c_ptr)::tmp_path
integer::res
tmp_path = c_malloc(int(1024, kind=c_size_t))
res = GetTempPath(1023, tmp_path)
tmp_name = c_malloc(int(1024, kind=c_size_t))
res = GetTempFileName(tmp_path, c_null_ptr, 0, tmp_name)
call c_free(tmp_path)
#else
interface
function tmpnam(p) bind(c, name='tmpnam')
use iso_c_binding
type(c_ptr), value::p
type(c_ptr)::tmpnam
end function tmpnam
end interface
type(c_ptr)::ignored
tmp_name = c_malloc(int(1024, kind=c_size_t))
ignored = tmpnam(tmp_name)
#endif
! Convert the C Ptr to a Fortran object
clength = c_strlen(tmp_name)
call c_f_pointer(tmp_name, cfullpath, (/ clength /))
allocate(character(len=clength)::fullpath)
do i = 1, clength
fullpath(i:i) = cfullpath(i)
end do
cfullpath => null()
call c_free(tmp_name)
end function generate_temporary_filename
subroutine delete_file(filename)
implicit none
character(*), intent(in)::filename
#ifdef GNU
call unlink(filename)
#else
! Not implemented...
#endif
end subroutine delete_file
end module utilities
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