wfqueue: provide API for caller-locked dequeue
[urcu.git] / wfqueue.c
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1/*
2 * wfqueue.c
3 *
4 * Userspace RCU library - Queue with Wait-Free Enqueue/Blocking Dequeue
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/* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
24#include "urcu/wfqueue.h"
25#include "urcu/wfqueue-static.h"
26
27/*
28 * library wrappers to be used by non-LGPL compatible source code.
29 */
30
31void wfq_node_init(struct wfq_node *node)
32{
33 _wfq_node_init(node);
34}
35
36void wfq_init(struct wfq_queue *q)
37{
38 _wfq_init(q);
39}
40
41void wfq_enqueue(struct wfq_queue *q, struct wfq_node *node)
42{
43 _wfq_enqueue(q, node);
44}
45
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46struct wfq_node *__wfq_dequeue_blocking(struct wfq_queue *q)
47{
48 return ___wfq_dequeue_blocking(q);
49}
50
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51struct wfq_node *wfq_dequeue_blocking(struct wfq_queue *q)
52{
53 return _wfq_dequeue_blocking(q);
54}
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