uatomic compat: complete i386 support
[urcu.git] / urcu-pointer.c
1
2 /*
3 * urcu-pointer.c
4 *
5 * library wrappers to be used by non-LGPL compatible source code.
6 *
7 * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
8 * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 * IBM's contributions to this file may be relicensed under LGPLv2 or later.
25 */
26
27 #include <urcu/uatomic_arch.h>
28
29 #include "urcu-pointer-static.h"
30 /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
31 #include "urcu-pointer.h"
32
33 extern void synchronize_rcu(void);
34
35 void *rcu_dereference_sym(void *p)
36 {
37 return _rcu_dereference(p);
38 }
39
40 void *rcu_set_pointer_sym(void **p, void *v)
41 {
42 wmb();
43 return uatomic_set(p, v);
44 }
45
46 void *rcu_xchg_pointer_sym(void **p, void *v)
47 {
48 wmb();
49 return uatomic_xchg(p, v);
50 }
51
52 void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
53 {
54 wmb();
55 return uatomic_cmpxchg(p, old, _new);
56 }
This page took 0.034845 seconds and 5 git commands to generate.