blob: 115037712c9389ec6125d9beffddde9fa3439126 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
(*************************************************************************)
(* *)
(* Objective Caml LablTk library *)
(* *)
(* Francois Rouaix, Francois Pessaux and Jun Furuse *)
(* projet Cristal, INRIA Rocquencourt *)
(* Jacques Garrigue, Kyoto University RIMS *)
(* *)
(* Copyright 1999 Institut National de Recherche en Informatique et *)
(* en Automatique and Kyoto University. All rights reserved. *)
(* This file is distributed under the terms of the GNU Library *)
(* General Public License. *)
(* *)
(*************************************************************************)
(* $Id$ *)
(* Timers *)
open Protocol
type tkTimer = int
external internal_add_timer : int -> cbid -> tkTimer
= "camltk_add_timer"
external internal_rem_timer : tkTimer -> unit
= "camltk_rem_timer"
type t = tkTimer * cbid (* the token and the cb id *)
(* A timer is used only once, so we must clean the callback table *)
let add ms:milli callback:f =
let id = new_function_id () in
let wrapped _ =
clear_callback id; (* do it first in case f raises exception *)
f() in
Hashtbl.add callback_naming_table key:id data:wrapped;
if !Protocol.debug then begin
prerr_cbid id; prerr_endline " for timer"
end;
let t = internal_add_timer milli id in
t,id
(* If the timer has never been used, there is a small space leak in
the C heap, where a copy of id has been stored *)
let remove (tkTimer, id) =
internal_rem_timer tkTimer;
clear_callback id
|
