ocaml/stdlib/sys.ml

68 lines
2.0 KiB
OCaml

(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* Automatique. Distributed only by permission. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(* System interface *)
external get_config: unit -> string * int = "sys_get_config"
external get_argv: unit -> string array = "sys_get_argv"
let argv = get_argv()
let (os_type, word_size) = get_config()
external file_exists: string -> bool = "sys_file_exists"
external remove: string -> unit = "sys_remove"
external rename : string -> string -> unit = "sys_rename"
external getenv: string -> string = "sys_getenv"
external command: string -> int = "sys_system_command"
external chdir: string -> unit = "sys_chdir"
external getcwd: unit -> string = "sys_getcwd"
let interactive = ref false
type signal_behavior =
Signal_default
| Signal_ignore
| Signal_handle of (int -> unit)
external signal: int -> signal_behavior -> unit = "install_signal_handler"
let sigabrt = -1
let sigalrm = -2
let sigfpe = -3
let sighup = -4
let sigill = -5
let sigint = -6
let sigkill = -7
let sigpipe = -8
let sigquit = -9
let sigsegv = -10
let sigterm = -11
let sigusr1 = -12
let sigusr2 = -13
let sigchld = -14
let sigcont = -15
let sigstop = -16
let sigtstp = -17
let sigttin = -18
let sigttou = -19
let sigvtalrm = -20
let sigprof = -21
exception Break
let catch_break on =
if on then
signal sigint (Signal_handle(fun _ -> raise Break))
else
signal sigint Signal_default