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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: system.mli 9397 2006-11-21 21:50:54Z herbelin $ i*)
(*s Files and load paths. Load path entries remember the original root
given by the user. For efficiency, we keep the full path (field
[directory]), the root path and the path relative to the root. *)
type physical_path = string
type load_path = physical_path list
val all_subdirs : unix_path:string -> (physical_path * string list) list
val is_in_path : load_path -> string -> bool
val where_in_path : load_path -> string -> physical_path * string
val physical_path_of_string : string -> physical_path
val string_of_physical_path : physical_path -> string
val make_suffix : string -> string -> string
val file_readable_p : string -> bool
val expand_path_macros : string -> string
val getenv_else : string -> string -> string
val home : string
val exists_dir : string -> bool
val find_file_in_path : load_path -> string -> physical_path * string
(*s Generic input and output functions, parameterized by a magic number
and a suffix. The intern functions raise the exception [Bad_magic_number]
when the check fails, with the full file name. *)
val marshal_out : out_channel -> 'a -> unit
val marshal_in : in_channel -> 'a
exception Bad_magic_number of string
val raw_extern_intern : int -> string ->
(string -> string * out_channel) * (string -> in_channel)
val extern_intern :
int -> string -> (string -> 'a -> unit) * (load_path -> string -> 'a)
(*s Sending/receiving once with external executable *)
val connect : (out_channel -> unit) -> (in_channel -> 'a) -> string -> 'a
(*s [run_command converter f com] launches command [com], and returns
the contents of stdout and stderr that have been processed with
[converter]; the processed contents of stdout and stderr is also
passed to [f] *)
val run_command : (string -> string) -> (string -> unit) -> string ->
Unix.process_status * string
(*s Time stamps. *)
type time
val process_time : unit -> float * float
val get_time : unit -> time
val time_difference : time -> time -> float (* in seconds *)
val fmt_time_difference : time -> time -> Pp.std_ppcmds
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