Make lf stack push return if the stack was empty
[urcu.git] / rculfstack.c
1 /*
2 * rculfstack.c
3 *
4 * Userspace RCU library - Lock-Free RCU Stack
5 *
6 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 /* Use the urcu symbols to select the appropriate rcu flavor at link time */
24 #define _LGPL_SOURCE
25
26 #ifdef RCU_QSBR
27 # include "urcu-qsbr.h"
28 #elif defined(RCU_BP)
29 # include "urcu-bp.h"
30 #else
31 # include "urcu.h"
32 #endif
33
34 #undef _LGPL_SOURCE
35 /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
36 #include "urcu/rculfstack.h"
37 #include "urcu/static/rculfstack.h"
38
39 /*
40 * library wrappers to be used by non-LGPL compatible source code.
41 */
42
43
44 void cds_lfs_node_init_rcu(struct cds_lfs_node_rcu *node)
45 {
46 _cds_lfs_node_init_rcu(node);
47 }
48
49 void cds_lfs_init_rcu(struct cds_lfs_stack_rcu *s)
50 {
51 _cds_lfs_init_rcu(s);
52 }
53
54 int cds_lfs_push_rcu(struct cds_lfs_stack_rcu *s,
55 struct cds_lfs_node_rcu *node)
56 {
57 return _cds_lfs_push_rcu(s, node);
58 }
59
60 struct cds_lfs_node_rcu *cds_lfs_pop_rcu(struct cds_lfs_stack_rcu *s)
61 {
62 return _cds_lfs_pop_rcu(s);
63 }
This page took 0.042466 seconds and 5 git commands to generate.