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
|
(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
(** Global control of Coq. *)
(** Used to convert signals to exceptions *)
exception Timeout
(** Will periodically call [Thread.delay] if set to true *)
val enable_thread_delay : bool ref
val interrupt : bool ref
(** Coq interruption: set the following boolean reference to interrupt Coq
(it eventually raises [Break], simulating a Ctrl-C) *)
val check_for_interrupt : unit -> unit
(** Use this function as a potential yield function. If {!interrupt} has been
set, il will raise [Sys.Break]. *)
val timeout : float -> ('a -> 'b) -> 'a -> 'b option
(** [timeout n f x] tries to compute [Some (f x)], and if it fails to do so
before [n] seconds, returns [None] instead. *)
(** Set a particular timeout function; warning, this is an internal
API and it is scheduled to go away. *)
type timeout = { timeout : 'a 'b. float -> ('a -> 'b) -> 'a -> 'b option }
val set_timeout : timeout -> unit
(** [protect_sigalrm f x] computes [f x], but if SIGALRM is received during that
computation, the signal handler is executed only once the computation is
terminated. Otherwise said, it makes the execution of [f] atomic w.r.t.
handling of SIGALRM.
This is useful for example to prevent the implementation of `Timeout` to
interrupt I/O routines, generating ill-formed output.
*)
val protect_sigalrm : ('a -> 'b) -> 'a -> 'b
|
