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(*
* Copyright (C) 2006-2007 XenSource Ltd.
* Copyright (C) 2008 Citrix Ltd.
* Author Vincent Hanquez <vincent.hanquez@eu.citrix.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*)
type pkt =
{
tid: int;
rid: int;
ty: Op.operation;
len: int;
buf: Buffer.t;
}
external header_size: unit -> int = "stub_header_size"
external header_of_string_internal: string -> int * int * int * int
= "stub_header_of_string"
let of_string s =
let tid, rid, opint, dlen = header_of_string_internal s in
{
tid = tid;
rid = rid;
ty = (Op.of_cval opint);
len = dlen;
buf = Buffer.create dlen;
}
let append pkt s sz =
Buffer.add_string pkt.buf (String.sub s 0 sz)
let to_complete pkt =
pkt.len - (Buffer.length pkt.buf)
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