1 /*
2  * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *    http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "hks_lock.h"
17 
18 #include <stddef.h>
19 
20 #include "hks_mem.h"
21 #include "hks_rwlock.h"
22 #include "hks_template.h"
23 
24 struct HksLock {
25     HksRwlock *lock;
26 };
27 
HksLockCreate(void)28 HksLock *HksLockCreate(void)
29 {
30     HksLock *lock = (HksLock *)HksMalloc(sizeof(HksLock));
31     if (lock != NULL) {
32         lock->lock = HksRwlockCreate();
33         if (lock->lock == NULL) {
34             HKS_FREE(lock);
35             lock = NULL;
36         }
37     }
38     return lock;
39 }
40 
HksLockLockRead(HksLock * lock)41 int32_t HksLockLockRead(HksLock *lock)
42 {
43     HKS_IF_NULL_RETURN(lock, -1)
44 
45     return HksRwlockLockRead(lock->lock);
46 }
47 
HksLockUnlockRead(HksLock * lock)48 int32_t HksLockUnlockRead(HksLock *lock)
49 {
50     HKS_IF_NULL_RETURN(lock, -1)
51 
52     return HksRwlockUnlockRead(lock->lock);
53 }
54 
HksLockLockWrite(HksLock * lock)55 int32_t HksLockLockWrite(HksLock *lock)
56 {
57     HKS_IF_NULL_RETURN(lock, -1)
58 
59     return HksRwlockLockWrite(lock->lock);
60 }
61 
HksLockUnlockWrite(HksLock * lock)62 int32_t HksLockUnlockWrite(HksLock *lock)
63 {
64     HKS_IF_NULL_RETURN(lock, -1)
65 
66     return HksRwlockUnlockWrite(lock->lock);
67 }
68 
HksLockClose(HksLock * lock)69 void HksLockClose(HksLock *lock)
70 {
71     if (lock == NULL) {
72         return;
73     }
74     HksRwlockClose(lock->lock);
75     HKS_FREE(lock);
76 }
77