/usr/lib/ats-anairiats-0.2.11/libc/DATS/dirent.dats is in ats-lang-anairiats 0.2.11-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(* *)
(* Applied Type System *)
(* *)
(* Hongwei Xi *)
(* *)
(***********************************************************************)
(*
** ATS - Unleashing the Potential of Types!
** Copyright (C) 2002-2009 Hongwei Xi, Boston University
** All rights reserved
**
** ATS is free software; you can redistribute it and/or modify it under
** the terms of the GNU General Public License as published by the Free
** Software Foundation; either version 2.1, or (at your option) any later
** version.
**
** ATS 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 General Public License
** for more details.
**
** You should have received a copy of the GNU General Public License
** along with ATS; see the file COPYING. If not, please write to the
** Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
** 02110-1301, USA.
*)
(* ****** ****** *)
(* author: Hongwei Xi (hwxi AT cs DOT bu DOT edu) *)
(* ****** ****** *)
#define ATS_DYNLOADFLAG 0 // no dynamic loading
(* ****** ****** *)
staload "libc/SATS/dirent.sats"
(* ****** ****** *)
implement
dirent_stream_vt_make_DIR
{l_dir:addr} (pf_dir | p_dir) = $ldelay (
res where {
var res: stream_vt_con dirent ; val () = f (pf_dir | p_dir, res)
} // end of [where]
, $effmask_exn (closedir_exn (pf_dir | p_dir))
) where {
extern fun readdir_r
(_: &DIR, _: &dirent? >> dirent, _: &ptr? >> Ptr):<> int
= "mac#atslib_readdir_r"
fn f (
pf_dir: DIR @ l_dir
| p_dir: ptr l_dir, res: &stream_vt_con dirent? >> stream_vt_con dirent
) :<!laz> void = let
var ret: ptr // uninitialized
val () = (res := stream_vt_cons {dirent} (?, ?))
val+ stream_vt_cons (!p_x, !p_xs) = res
val err = readdir_r (!p_dir, !p_x, ret)
val islast = if (err <> 0) then true else (ret = null)
in
if islast then let
val () = $effmask_exn (closedir_exn (pf_dir | p_dir))
in
free@ {dirent} res; res := stream_vt_nil ()
end else let
val () = !p_xs := dirent_stream_vt_make_DIR (pf_dir | p_dir)
in
fold@ res
end // end of [if]
end // end of [f]
} // end of [dirent_stream_vt_make_DIR]
(* ****** ****** *)
implement
direntptr_stream_vt_make_DIR
{l_dir:addr} (pf_dir | p_dir) = $ldelay (
res where {
var res: stream_vt_con dirent ; val () = f (pf_dir | p_dir, res)
} // end of [where]
, $effmask_exn (closedir_exn (pf_dir | p_dir))
) where {
extern fun readdir_r
(_: &DIR, _: &dirent? >> dirent, _: &ptr? >> Ptr):<> int
= "mac#atslib_readdir_r"
fn f (
pf_dir: DIR @ l_dir
| p_dir: ptr l_dir
, res: &stream_vt_con direntptr_gc? >> stream_vt_con direntptr_gc
) :<!laz> void = let
var ret: ptr // uninitialized
val (pf_ent_gc, pf_ent | p_ent) = ptr_alloc_tsz {dirent} (sizeof<dirent>)
val err = readdir_r (!p_dir, !p_ent, ret)
val islast = if (err <> 0) then true else (ret = null)
in
if islast then let
val () = ptr_free {dirent?} (pf_ent_gc, pf_ent | p_ent)
val () = $effmask_exn (closedir_exn (pf_dir | p_dir))
in
res := stream_vt_nil ()
end else let
val x = (pf_ent_gc, pf_ent | p_ent): direntptr_gc
val () = (res := stream_vt_cons {direntptr_gc} (x, ?))
val+ stream_vt_cons (!p_x, !p_xs) = res
val () = !p_xs := direntptr_stream_vt_make_DIR (pf_dir | p_dir)
in
fold@ res
end // end of [if]
end (* end of [f] *)
} // end of [direntptr_stream_vt_make_DIR]
(* ****** ****** *)
(* end of [dirent.dats] *)
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