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d5b6f1df5f
This change allows parts of the daemon to be written in the OCaml programming language. I am using the ‘Main Program in C’ method along with ‘-output-obj’ to create an object file from the OCaml code / runtime, as described here: https://caml.inria.fr/pub/docs/manual-ocaml/intfc.html Furthermore, change the generator to allow individual APIs to be implemented in OCaml. This is picked by setting: impl = OCaml <ocaml_function>; The generator creates ‘do_function’ (the same one you would have to write by hand in C), with the function calling the named ‘ocaml_function’ and dealing with marshalling/unmarshalling the OCaml parameters.
39 lines
1.4 KiB
OCaml
39 lines
1.4 KiB
OCaml
(* guestfs-inspection
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* Copyright (C) 2009-2017 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*)
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(** This is a generic module for running functions in a chroot.
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The function runs in a forked subprocess too so that we can
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restore the root afterwards.
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It handles passing the parameter, forking, running the
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function and marshalling the result or any exceptions. *)
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type t
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val create : ?name:string -> ?chroot:string -> unit -> t
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(** Create a chroot handle.
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[?name] is an optional name used in debugging and error messages.
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[?chroot] is the optional chroot directory. This parameter
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defaults to [Sysroot.sysroot ()]. *)
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val f : t -> ('a -> 'b) -> 'a -> 'b
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(** Run a function in the chroot, returning the result or re-raising
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any exception thrown. *)
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