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(*
* Copyright (c) 2013 Anil Madhavapeddy <anil@recoil.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*)
open Core
open Async
let to_bigsubstring t =
Bigsubstring.create
~pos:t.Cstruct.off
~len:t.Cstruct.len
t.Cstruct.buffer
let of_bigsubstring t =
Cstruct.of_bigarray
~off:(Bigsubstring.pos t)
~len:(Bigsubstring.length t)
(Bigsubstring.base t)
let read rd t =
Reader.read_bigsubstring rd (to_bigsubstring t)
let schedule_write wr t =
let open Cstruct in
Writer.schedule_bigstring ~pos:t.off ~len:t.len wr t.buffer
module Pipe = struct
let map_string rd wr =
let rd = Pipe.map rd ~f:Cstruct.to_string in
let rd',wr' = Pipe.create () in
don't_wait_for (Pipe.transfer rd' wr ~f:Cstruct.of_string);
rd,wr'
let map_bigsubstring rd wr =
let rd = Pipe.map rd ~f:to_bigsubstring in
let rd',wr' = Pipe.create () in
don't_wait_for (Pipe.transfer rd' wr ~f:of_bigsubstring);
rd,wr'
end
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