about summary refs log tree commit diff
path: root/sysdeps/mach/mach_rpc.h
blob: 152f057ca7c2b7b3f649297c0721da582a7ad4bb (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/* Macros for handling Mach RPC messages.
   Copyright (C) 2023 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library 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; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <mach/message.h>

/* Macro used by MIG to cleanly check the type.  */
#define BAD_TYPECHECK(type, check) __glibc_unlikely (({	\
  union { mach_msg_type_t t; uint32_t w; } _t, _c;	\
  _t.t = *(type); _c.t = *(check);_t.w != _c.w; }))

/* TODO: add this assertion for x86_64.  */
#ifndef __x86_64__
_Static_assert (sizeof (uint32_t) == sizeof (mach_msg_type_t),
                "mach_msg_type_t needs to be the same size as uint32_t");
#endif