Motr  M0
rwlock.h
Go to the documentation of this file.
1 /* -*- C -*- */
2 /*
3  * Copyright (c) 2012-2020 Seagate Technology LLC and/or its Affiliates
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  * For any questions about this software or licensing,
18  * please email opensource@seagate.com or cortx-questions@seagate.com.
19  *
20  */
21 
22 
23 #pragma once
24 
25 #ifndef __MOTR_LIB_RWLOCK_H__
26 #define __MOTR_LIB_RWLOCK_H__
27 
28 
34 #ifndef __KERNEL__
35 #include "lib/user_space/rwlock.h"
36 #else
38 #endif
39 
43 M0_INTERNAL void m0_rwlock_init(struct m0_rwlock *lock);
44 
48 M0_INTERNAL void m0_rwlock_fini(struct m0_rwlock *lock);
49 
53 M0_INTERNAL void m0_rwlock_write_lock(struct m0_rwlock *lock);
57 M0_INTERNAL void m0_rwlock_write_unlock(struct m0_rwlock *lock);
58 
62 void m0_rwlock_read_lock(struct m0_rwlock *lock);
67 
68 
69 /* bool m0_rwlock_write_trylock(struct m0_rwlock *lock); */
70 /* bool m0_rwlock_read_trylock(struct m0_rwlock *lock); */
71 
74 /* __MOTR_LIB_RWLOCK_H__ */
75 #endif
76 
77 /*
78  * Local variables:
79  * c-indentation-style: "K&R"
80  * c-basic-offset: 8
81  * tab-width: 8
82  * fill-column: 80
83  * scroll-step: 1
84  * End:
85  */
static struct m0_mutex lock
Definition: transmit.c:326
M0_INTERNAL void m0_rwlock_write_lock(struct m0_rwlock *lock)
Definition: rwlock.c:42
M0_INTERNAL void m0_rwlock_init(struct m0_rwlock *lock)
Definition: rwlock.c:32
M0_INTERNAL void m0_rwlock_write_unlock(struct m0_rwlock *lock)
Definition: rwlock.c:47
M0_INTERNAL void m0_rwlock_read_lock(struct m0_rwlock *lock)
Definition: rwlock.c:52
M0_INTERNAL void m0_rwlock_fini(struct m0_rwlock *lock)
Definition: rwlock.c:37
M0_INTERNAL void m0_rwlock_read_unlock(struct m0_rwlock *lock)
Definition: rwlock.c:57