wfqueue.c

   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 /* Remove deprecation warnings from LGPL wrapper build. */
  24 #define CDS_WFQ_DEPRECATED
  25
  26 /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
  27 #include "urcu/wfqueue.h"
  28 #include "urcu/static/wfqueue.h"
  29
  30 /*
  31  * library wrappers to be used by non-LGPL compatible source code.
  32  */
  33
  34 void cds_wfq_node_init(struct cds_wfq_node *node)
  35 {
  36         _cds_wfq_node_init(node);
  37 }
  38
  39 void cds_wfq_init(struct cds_wfq_queue *q)
  40 {
  41         _cds_wfq_init(q);
  42 }
  43
  44 void cds_wfq_enqueue(struct cds_wfq_queue *q, struct cds_wfq_node *node)
  45 {
  46         _cds_wfq_enqueue(q, node);
  47 }
  48
  49 struct cds_wfq_node *__cds_wfq_dequeue_blocking(struct cds_wfq_queue *q)
  50 {
  51         return ___cds_wfq_dequeue_blocking(q);
  52 }
  53
  54 struct cds_wfq_node *cds_wfq_dequeue_blocking(struct cds_wfq_queue *q)
  55 {
  56         return _cds_wfq_dequeue_blocking(q);
  57 }