Import Upstream version 20180207
[hcoop/debian/mlton.git] / lib / mlton / basic / pid.sig
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1(* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh
2 * Jagannathan, and Stephen Weeks.
3 *
4 * MLton is released under a BSD-style license.
5 * See the file MLton-LICENSE for details.
6 *)
7
8signature PID =
9 sig
10 type t
11
12 val current: unit -> t
13 val equals: t * t -> bool
14 val fromString: string -> t option
15 val layout: t -> Layout.t
16 val parent: unit -> t
17 val toString: t -> string
18 end