rculfqueue.c

   1 /*
   2  * rculfqueue.c
   3  *
   4  * Userspace RCU library - Lock-Free RCU Queue
   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 #define _LGPL_SOURCE
  24
  25 #ifdef RCU_QSBR
  26 # include "urcu-qsbr.h"
  27 #elif defined(RCU_BP)
  28 # include "urcu-bp.h"
  29 #else
  30 # include "urcu.h"
  31 #endif
  32
  33 #undef _LGPL_SOURCE
  34 /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */
  35 #include "urcu/rculfqueue.h"
  36 #include "urcu/static/rculfqueue.h"
  37
  38 /*
  39  * library wrappers to be used by non-LGPL compatible source code.
  40  */
  41
  42 void cds_lfq_node_init_rcu(struct cds_lfq_node_rcu *node)
  43 {
  44         _cds_lfq_node_init_rcu(node);
  45 }
  46
  47 void cds_lfq_init_rcu(struct cds_lfq_queue_rcu *q,
  48                       void queue_call_rcu(struct rcu_head *head,
  49                                 void (*func)(struct rcu_head *head)))
  50 {
  51         _cds_lfq_init_rcu(q, queue_call_rcu);
  52 }
  53
  54 int cds_lfq_destroy_rcu(struct cds_lfq_queue_rcu *q)
  55 {
  56         return _cds_lfq_destroy_rcu(q);
  57 }
  58
  59 void cds_lfq_enqueue_rcu(struct cds_lfq_queue_rcu *q, struct cds_lfq_node_rcu *node)
  60 {
  61         _cds_lfq_enqueue_rcu(q, node);
  62 }
  63
  64 struct cds_lfq_node_rcu *
  65 cds_lfq_dequeue_rcu(struct cds_lfq_queue_rcu *q)
  66 {
  67         return _cds_lfq_dequeue_rcu(q);
  68 }