1a9643ea8Slogwang /*-
2a9643ea8Slogwang  *   BSD LICENSE
3a9643ea8Slogwang  *
4a9643ea8Slogwang  *   Copyright(c) 2015 Intel Corporation. All rights reserved.
5a9643ea8Slogwang  *   All rights reserved.
6a9643ea8Slogwang  *
7a9643ea8Slogwang  *   Redistribution and use in source and binary forms, with or without
8a9643ea8Slogwang  *   modification, are permitted provided that the following conditions
9a9643ea8Slogwang  *   are met:
10a9643ea8Slogwang  *
11a9643ea8Slogwang  *     * Redistributions of source code must retain the above copyright
12a9643ea8Slogwang  *       notice, this list of conditions and the following disclaimer.
13a9643ea8Slogwang  *     * Redistributions in binary form must reproduce the above copyright
14a9643ea8Slogwang  *       notice, this list of conditions and the following disclaimer in
15a9643ea8Slogwang  *       the documentation and/or other materials provided with the
16a9643ea8Slogwang  *       distribution.
17a9643ea8Slogwang  *     * Neither the name of Intel Corporation nor the names of its
18a9643ea8Slogwang  *       contributors may be used to endorse or promote products derived
19a9643ea8Slogwang  *       from this software without specific prior written permission.
20a9643ea8Slogwang  *
21a9643ea8Slogwang  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22a9643ea8Slogwang  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23a9643ea8Slogwang  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24a9643ea8Slogwang  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25a9643ea8Slogwang  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26a9643ea8Slogwang  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27a9643ea8Slogwang  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28a9643ea8Slogwang  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29a9643ea8Slogwang  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30a9643ea8Slogwang  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31a9643ea8Slogwang  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32a9643ea8Slogwang  */
33a9643ea8Slogwang 
34a9643ea8Slogwang 
35a9643ea8Slogwang #ifndef LTHREAD_MUTEX_H_
36a9643ea8Slogwang #define LTHREAD_MUTEX_H_
37a9643ea8Slogwang 
38*2bfe3f2eSlogwang #ifdef __cplusplus
39*2bfe3f2eSlogwang extern "C" {
40*2bfe3f2eSlogwang #endif
41*2bfe3f2eSlogwang 
42a9643ea8Slogwang #include "lthread_queue.h"
43a9643ea8Slogwang 
44a9643ea8Slogwang 
45a9643ea8Slogwang #define MAX_MUTEX_NAME_SIZE 64
46a9643ea8Slogwang 
47a9643ea8Slogwang struct lthread_mutex {
48a9643ea8Slogwang 	struct lthread *owner;
49a9643ea8Slogwang 	rte_atomic64_t	count;
50a9643ea8Slogwang 	struct lthread_queue *blocked __rte_cache_aligned;
51a9643ea8Slogwang 	struct lthread_sched *root_sched;
52a9643ea8Slogwang 	char			name[MAX_MUTEX_NAME_SIZE];
53a9643ea8Slogwang 	uint64_t		diag_ref; /* optional ref to user diag data */
54a9643ea8Slogwang } __rte_cache_aligned;
55a9643ea8Slogwang 
56*2bfe3f2eSlogwang #ifdef __cplusplus
57*2bfe3f2eSlogwang }
58*2bfe3f2eSlogwang #endif
59*2bfe3f2eSlogwang 
60a9643ea8Slogwang #endif /* LTHREAD_MUTEX_H_ */
61