1/*
2 * Copyright (c) 2021-2023 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#define HST_LOG_TAG "Mutex"
17
18#include "osal/task/mutex.h"
19#include "common/log.h"
20
21namespace {
22constexpr OHOS::HiviewDFX::HiLogLabel LABEL = { LOG_CORE, LOG_DOMAIN_FOUNDATION, "Mutex" };
23}
24
25namespace OHOS {
26namespace Media {
27Mutex::Mutex() : created_(true)
28{
29    int rtv = pthread_mutex_init(&nativeHandle_, nullptr);
30    if (rtv != 0) {
31        created_ = false;
32        MEDIA_LOG_E("failed to init pthread mutex");
33    }
34}
35
36Mutex::~Mutex()
37{
38    if (created_) {
39        pthread_mutex_destroy(&nativeHandle_);
40    }
41}
42
43void Mutex::lock()
44{
45    FALSE_RETURN_MSG(created_, "lock uninitialized pthread mutex!");
46    pthread_mutex_lock(&nativeHandle_);
47}
48
49bool Mutex::try_lock()
50{
51    FALSE_RETURN_V_MSG_E(created_,
52        false, "trylock uninitialized pthread mutex.");
53    int ret = pthread_mutex_trylock(&nativeHandle_);
54    FALSE_LOG_MSG(ret == 0, "trylock failed with ret = " PUBLIC_LOG_D32, ret);
55    return ret == 0;
56}
57
58void Mutex::unlock()
59{
60    FALSE_RETURN_MSG(created_, "unlock uninitialized pthread mutex!");
61    pthread_mutex_unlock(&nativeHandle_);
62}
63
64FairMutex::FairMutex() : Mutex()
65{
66    int rtv = pthread_mutex_init(&failLockHandle_, nullptr);
67    if (rtv != 0) {
68        created_ = false;
69        MEDIA_LOG_E("failed to init FairMutex");
70    } else {
71        created_ = true;
72    }
73}
74
75FairMutex::~FairMutex()
76{
77    if (created_) {
78        pthread_mutex_destroy(&failLockHandle_);
79    }
80}
81
82void FairMutex::lock()
83{
84    if (created_) {
85        pthread_mutex_lock(&failLockHandle_);
86        Mutex::lock();
87        pthread_mutex_unlock(&failLockHandle_);
88    } else {
89        Mutex::lock();
90    }
91}
92} // namespace Media
93} // namespace OHOS