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8ad4ce58 MD |
1 | /* |
2 | * wfcqueue.c | |
3 | * | |
f878b49e | 4 | * Userspace RCU library - Concurrent Queue with Wait-Free Enqueue/Blocking Dequeue |
8ad4ce58 MD |
5 | * |
6 | * Copyright 2010-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
7 | * Copyright 2011-2012 - Lai Jiangshan <laijs@cn.fujitsu.com> | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Lesser General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2.1 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public | |
20 | * License along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
22 | */ | |
23 | ||
24 | /* Do not #define _LGPL_SOURCE to ensure we can emit the wrapper symbols */ | |
25 | #include "urcu/wfcqueue.h" | |
26 | #include "urcu/static/wfcqueue.h" | |
27 | ||
28 | /* | |
29 | * library wrappers to be used by non-LGPL compatible source code. | |
30 | */ | |
31 | ||
32 | void cds_wfcq_node_init(struct cds_wfcq_node *node) | |
33 | { | |
34 | _cds_wfcq_node_init(node); | |
35 | } | |
36 | ||
37 | void cds_wfcq_init(struct cds_wfcq_head *head, | |
38 | struct cds_wfcq_tail *tail) | |
39 | { | |
40 | _cds_wfcq_init(head, tail); | |
41 | } | |
42 | ||
43 | bool cds_wfcq_empty(struct cds_wfcq_head *head, | |
44 | struct cds_wfcq_tail *tail) | |
45 | ||
46 | { | |
47 | return _cds_wfcq_empty(head, tail); | |
48 | } | |
49 | ||
23773356 | 50 | bool cds_wfcq_enqueue(struct cds_wfcq_head *head, |
8ad4ce58 MD |
51 | struct cds_wfcq_tail *tail, |
52 | struct cds_wfcq_node *node) | |
53 | { | |
23773356 | 54 | return _cds_wfcq_enqueue(head, tail, node); |
8ad4ce58 MD |
55 | } |
56 | ||
57 | void cds_wfcq_dequeue_lock(struct cds_wfcq_head *head, | |
58 | struct cds_wfcq_tail *tail) | |
59 | { | |
852a17ad | 60 | _cds_wfcq_dequeue_lock(head, tail); |
8ad4ce58 MD |
61 | } |
62 | ||
63 | void cds_wfcq_dequeue_unlock(struct cds_wfcq_head *head, | |
64 | struct cds_wfcq_tail *tail) | |
65 | { | |
852a17ad | 66 | _cds_wfcq_dequeue_unlock(head, tail); |
8ad4ce58 MD |
67 | } |
68 | ||
69 | struct cds_wfcq_node *cds_wfcq_dequeue_blocking( | |
70 | struct cds_wfcq_head *head, | |
71 | struct cds_wfcq_tail *tail) | |
72 | { | |
73 | return _cds_wfcq_dequeue_blocking(head, tail); | |
74 | } | |
75 | ||
eec791af MD |
76 | struct cds_wfcq_node *cds_wfcq_dequeue_with_state_blocking( |
77 | struct cds_wfcq_head *head, | |
78 | struct cds_wfcq_tail *tail, | |
79 | int *state) | |
80 | { | |
81 | return _cds_wfcq_dequeue_with_state_blocking(head, tail, state); | |
82 | } | |
83 | ||
23773356 | 84 | enum cds_wfcq_ret cds_wfcq_splice_blocking( |
8ad4ce58 MD |
85 | struct cds_wfcq_head *dest_q_head, |
86 | struct cds_wfcq_tail *dest_q_tail, | |
87 | struct cds_wfcq_head *src_q_head, | |
88 | struct cds_wfcq_tail *src_q_tail) | |
89 | { | |
23773356 | 90 | return _cds_wfcq_splice_blocking(dest_q_head, dest_q_tail, |
8ad4ce58 MD |
91 | src_q_head, src_q_tail); |
92 | } | |
93 | ||
94 | struct cds_wfcq_node *__cds_wfcq_dequeue_blocking( | |
95 | struct cds_wfcq_head *head, | |
96 | struct cds_wfcq_tail *tail) | |
97 | { | |
98 | return ___cds_wfcq_dequeue_blocking(head, tail); | |
99 | } | |
100 | ||
eec791af MD |
101 | struct cds_wfcq_node *__cds_wfcq_dequeue_with_state_blocking( |
102 | struct cds_wfcq_head *head, | |
103 | struct cds_wfcq_tail *tail, | |
104 | int *state) | |
105 | { | |
106 | return ___cds_wfcq_dequeue_with_state_blocking(head, tail, state); | |
107 | } | |
108 | ||
47215721 MD |
109 | struct cds_wfcq_node *__cds_wfcq_dequeue_nonblocking( |
110 | struct cds_wfcq_head *head, | |
111 | struct cds_wfcq_tail *tail) | |
112 | { | |
113 | return ___cds_wfcq_dequeue_nonblocking(head, tail); | |
114 | } | |
115 | ||
eec791af MD |
116 | struct cds_wfcq_node *__cds_wfcq_dequeue_with_state_nonblocking( |
117 | struct cds_wfcq_head *head, | |
118 | struct cds_wfcq_tail *tail, | |
119 | int *state) | |
120 | { | |
121 | return ___cds_wfcq_dequeue_with_state_nonblocking(head, tail, state); | |
122 | } | |
123 | ||
23773356 | 124 | enum cds_wfcq_ret __cds_wfcq_splice_blocking( |
8ad4ce58 MD |
125 | struct cds_wfcq_head *dest_q_head, |
126 | struct cds_wfcq_tail *dest_q_tail, | |
127 | struct cds_wfcq_head *src_q_head, | |
128 | struct cds_wfcq_tail *src_q_tail) | |
129 | { | |
23773356 | 130 | return ___cds_wfcq_splice_blocking(dest_q_head, dest_q_tail, |
8ad4ce58 MD |
131 | src_q_head, src_q_tail); |
132 | } | |
133 | ||
23773356 | 134 | enum cds_wfcq_ret __cds_wfcq_splice_nonblocking( |
47215721 MD |
135 | struct cds_wfcq_head *dest_q_head, |
136 | struct cds_wfcq_tail *dest_q_tail, | |
137 | struct cds_wfcq_head *src_q_head, | |
138 | struct cds_wfcq_tail *src_q_tail) | |
139 | { | |
140 | return ___cds_wfcq_splice_nonblocking(dest_q_head, dest_q_tail, | |
141 | src_q_head, src_q_tail); | |
142 | } | |
143 | ||
8ad4ce58 MD |
144 | struct cds_wfcq_node *__cds_wfcq_first_blocking( |
145 | struct cds_wfcq_head *head, | |
146 | struct cds_wfcq_tail *tail) | |
147 | { | |
148 | return ___cds_wfcq_first_blocking(head, tail); | |
149 | } | |
150 | ||
47215721 MD |
151 | struct cds_wfcq_node *__cds_wfcq_first_nonblocking( |
152 | struct cds_wfcq_head *head, | |
153 | struct cds_wfcq_tail *tail) | |
154 | { | |
155 | return ___cds_wfcq_first_nonblocking(head, tail); | |
156 | } | |
157 | ||
8ad4ce58 MD |
158 | struct cds_wfcq_node *__cds_wfcq_next_blocking( |
159 | struct cds_wfcq_head *head, | |
160 | struct cds_wfcq_tail *tail, | |
161 | struct cds_wfcq_node *node) | |
162 | { | |
163 | return ___cds_wfcq_next_blocking(head, tail, node); | |
164 | } | |
47215721 MD |
165 | |
166 | struct cds_wfcq_node *__cds_wfcq_next_nonblocking( | |
167 | struct cds_wfcq_head *head, | |
168 | struct cds_wfcq_tail *tail, | |
169 | struct cds_wfcq_node *node) | |
170 | { | |
171 | return ___cds_wfcq_next_nonblocking(head, tail, node); | |
172 | } |