75 lines
2.3 KiB
OCaml
75 lines
2.3 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the GNU Library General Public License. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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(* System interface *)
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external get_config: unit -> string * int = "sys_get_config"
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external get_argv: unit -> string array = "sys_get_argv"
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let argv = get_argv()
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let (os_type, word_size) = get_config()
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let max_array_length = (1 lsl (word_size - 10)) - 1;;
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let max_string_length = word_size / 8 * max_array_length - 1;;
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external file_exists: string -> bool = "sys_file_exists"
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external remove: string -> unit = "sys_remove"
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external rename : string -> string -> unit = "sys_rename"
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external getenv: string -> string = "sys_getenv"
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external command: string -> int = "sys_system_command"
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external time: unit -> float = "sys_time"
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external chdir: string -> unit = "sys_chdir"
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external getcwd: unit -> string = "sys_getcwd"
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let interactive = ref false
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type signal_behavior =
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Signal_default
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| Signal_ignore
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| Signal_handle of (int -> unit)
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external signal: int -> signal_behavior -> signal_behavior
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= "install_signal_handler"
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let set_signal sig_num sig_beh = ignore(signal sig_num sig_beh)
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let sigabrt = -1
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let sigalrm = -2
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let sigfpe = -3
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let sighup = -4
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let sigill = -5
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let sigint = -6
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let sigkill = -7
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let sigpipe = -8
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let sigquit = -9
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let sigsegv = -10
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let sigterm = -11
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let sigusr1 = -12
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let sigusr2 = -13
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let sigchld = -14
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let sigcont = -15
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let sigstop = -16
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let sigtstp = -17
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let sigttin = -18
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let sigttou = -19
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let sigvtalrm = -20
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let sigprof = -21
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exception Break
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let catch_break on =
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if on then
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set_signal sigint (Signal_handle(fun _ -> raise Break))
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else
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set_signal sigint Signal_default
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