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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.
*/
#include <unistd.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <string.h>
#include <errno.h>
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include <caml/alloc.h>
#include <caml/custom.h>
#include <caml/fail.h>
#include <caml/callback.h>
#include <xenctrl.h>
#include <xen/io/xs_wire.h>
CAMLprim value stub_header_size(void)
{
CAMLparam0();
CAMLreturn(Val_int(sizeof(struct xsd_sockmsg)));
}
CAMLprim value stub_header_of_string(value s)
{
CAMLparam1(s);
CAMLlocal1(ret);
struct xsd_sockmsg *hdr;
if (caml_string_length(s) != sizeof(struct xsd_sockmsg))
caml_failwith("xb header incomplete");
ret = caml_alloc_tuple(4);
hdr = (struct xsd_sockmsg *) String_val(s);
Store_field(ret, 0, Val_int(hdr->tx_id));
Store_field(ret, 1, Val_int(hdr->req_id));
Store_field(ret, 2, Val_int(hdr->type));
Store_field(ret, 3, Val_int(hdr->len));
CAMLreturn(ret);
}
CAMLprim value stub_string_of_header(value tid, value rid, value ty, value len)
{
CAMLparam4(tid, rid, ty, len);
CAMLlocal1(ret);
struct xsd_sockmsg xsd = {
.type = Int_val(ty),
.tx_id = Int_val(tid),
.req_id = Int_val(rid),
.len = Int_val(len),
};
ret = caml_alloc_string(sizeof(struct xsd_sockmsg));
memcpy(String_val(ret), &xsd, sizeof(struct xsd_sockmsg));
CAMLreturn(ret);
}
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